Show You Know! C H 3 CH 3 NH Identify any lines of internal symmetry within the molecules below.
|
|
- Avice Fowler
- 5 years ago
- Views:
Transcription
1 classroom a c t i v i t y 6 hirality Show You Know!. Identify any lines of internal symmetry within the molecules below. Based on what you have just learned about chirality, could any of these molecules be chiral? (Remember chiral is just Greek for having qualities similar to the human hand.) o, they have internal planes of symmetry, and could be superimposed.. For each of the following compounds: identify any stereogenic centers, assign absolution configuration to those stereogenic centers, identify any plane of symmetry, and indicate whether the molecule is chiral. a. R R hiral molecule, no plane of symmetry. hiral carbons shown with stereochemistry. (R,R)-cyclopentane-,-diol c. Achiral molecule, no chiral carbons plane of symmetry as shown -methylcyclopentanol
2 e. Achiral molecule, no chiral carbons plane of symmetry as shown -methylcyclohexanol g. hiral molecule, no plane of symmetry. hiral carbons shown with absolute configuration. S R (R,S)--methylcyclopentanol 5. For each of the following compounds: Indicate with an asterisk any chiral centers in the molecules. Rank each group on the chiral centers from high to low priority. Determine whether the chiral center is (R) or (S). a. c. l F *S (R)-but--en--ol (S)--chloro--fluoroethane e. LSD g. Ecstacy (MDMA)
3 6 hirality 6. Provide a proper IUPA name for each of the following molecules including any stereochemical designations (R,S or E,Z) a Br l c F d b a. (R,5R)-5-bromo--chloroheptane c. (R,5R)-,5-dimethylcyclohexene hallenge! Warning! ot for the faint of heart; this one is more challenging than would ever be given to you on a test. It is only provided as a challenge. For the following compound: Indicate with an asterisk any chiral center. Rank each group on the chiral centers from high to low priority. Determine whether the chiral center is (R) or (S). Estrogen analog
4 We will first look at what is known as the 7 carbon in estrogen nomenclature... ighest priority () connected to three carbons is it or priority? To determine which is and, we need to look at what each carbon connected to carbons is connected to: connected to three carbons is it or priority? lowest priority () Blue carbon is bonded to carbon with a "real" substitutent and carbons with no substituents Red carbon is bonded to carbons that each have "real" substitutents; it has priority. We have the groups prioritized we can look at what the stereochemistry is. ne problem we have is that the lowest group is in the plane of the page, neither back or front. We need to rotate the molecule. Look from this direction Look from this direction Simplified structure Rotate Pseudo ewman lockwise so R configuration
5 6 hirality So, now it is easy to see that the nomenclature for these molecules usually refers to anything above the ring as α and anything below the ring is β rather than R or S. ow, let s look at the carbon next to it: the carbon. It appears to be connected to other carbons. Lowest priority arbon with a and attached, rd priority arbon with an, a and an attached, st priority arbon with and an, nd priority Rotate Psuedo ewman ounterclockwise so S Let s look at arbon now. This one is relatively easy. Pseudo ewman ounter clockwise=s
6 Let s look at carbon 8. This is another bear, but priority is easy! bonded to s, all with real substituents with s and an with and a bonded to s but not all have real substituents with s and an with and, priority! with and a Rotate Psuedo ewman lockwise R configuration with and, priority with attached, priority with and an, priority Finally carbon 9, priority is easy again Pseudo ewman ounterclockwise, S configuration
CHEM 261 Feb. 2, Stereochemistry and Chirality
70 EM 261 eb. 2, 2017 Stereochemistry and hirality hiral object or molecule: has a non-superimposable mirror image Achiral object: not chiral, has a superimposable mirror image 1848 - Louis Pasteur separated
More informationIN-CLASS PROBLEM. ChemistryOnline, STEREOCHEMISTRY OF TETRAHEDRAL CENTERS. ChemistryOnline, No Plane of Symmetry
hapter 5 Draw the structure of bromocyclopentane. Stereochemistry Reproduction or distribution of any of the content, or any of the images in this presentation is strictly prohibited without the expressed
More informationCHEM 261 Feb. 2, Pheromone: from Greek pherein horman meaning to carry excitement. Only about 50 % of the population can smell this compound
70 EM 61 eb., 017 Pheromone: from Greek pherein horman meaning to carry excitement O Only about 50 % of the population can smell this compound omenclature of Alkynes Rules: - ind longest chain with max
More informationCounterclockwise (Leftward turning) S. 3 2 Clockwise (Rightward turning) R
Stereochemistry I and S in Alkanes A chiral carbon has four different groups attached to it, the differences may be several bonds away, but so long as they are different in any way the groups are considered
More informationAssigning Stereochemistry I What is stereochemistry?
S. Lievens, March 0 University of alifornia, Davis For use in UDavis hemistry 8/8 Series Assigning Stereochemistry I What is stereochemistry? Types of isomers As organic molecules get larger (more than
More informationChapter 5: Stereoisomerism
hapter 5: Stereoisomerism [Sections: 5.1-5.9] 1. dentifying Types of somers Same MolecularFormula? A B compounds are not isomers Same onnectivity? D E constitutional isomers have different names (parent
More informationgeometric isomers (diastereomers)
Symmetry Monarch butterfly: bilateral symmetry= mirror symmetry Whenever winds blow butterflies find a new place on the willow tree -Basho (~6-69) 5 hapter 7: Stereochemistry - three-dimensional arrangement
More informationChapter 6. Isomers and Stereochemistry
hapter 6. Isomers and Stereochemistry Learning objectives: 1. Differentiate chiral and achiral molecules. 2. Recognize and draw structural isomers (constitutional isomers), stereoisomers including enantiomers
More informationTopic 5 Stereochemistry and optical isomers Isomerism
Topic 5 Stereochemistry and optical isomers Isomerism Recap lassification of isomers same molecular formula onstitutional Different nature/sequence of bonds Stereoisomers Different arrangement of groups
More informationChapter 4: Stereochemistry
Chapter 4: Stereochemistry Introduction To Stereochemistry Consider two of the compounds we produced while finding all the isomers of C 7 16 : C 3 C 3 2-methylhexane 3-methylhexane C 2-methylhexane Bu
More informationLesson 4. Molecular Geometry and Isomers II. Lesson 4 CH 3 HO H OH
Lesson 4 Molecular Geometry and Isomers II 4 Lesson 4 3 O O 3 Organic Edge A. Structural Isomers (onstitutional Isomers) 1. Structural isomers are molecules that share the same molecular formula but differ
More information9. Stereochemistry: Introduction to Using Molecular Models
9. Stereochemistry: Introduction to Using Molecular Models The first part of this document reviews some of the most important stereochemistry topics covered in lecture. Following the introduction, a number
More informationSTEREOGENIC CENTER (Chiral Center,Asymmetric Center) Atom (usually carbon) to which 4 different groups are attached: W Z C X Y
STEREOGENI ENTER (hiral enter,asymmetric enter) Atom (usually carbon) to which 4 different groups are attached: W Z X Y Many, but not all, molecules which contain a stereogenic center are chiral. (A molecule
More informationChemistry 123: Physical and Organic Chemistry Topic 1: Organic Chemistry
Concept Check: Topic 1: Conformation Winter 2009 Page 112 Concept Check: Topic 1: Conformation Winter 2009 Page 113 1 STEREOCHEMISTRY Winter 2009 Page 114 We have already covered two kinds of isomerism:
More informationa. Does the model have a plane of symmetry? Yes No The central carbon is said to be a stereocenter, stereogenic center, or chiral carbon.
Name: TA Name Lab Section: Day Time OPTICAL ISOMERISM 1. Construct a model that has a central carbon atom with 4 different colored spheres attached to it, representing four different atoms or groups. Draw
More informationChapter 6. Isomers and Stereochemistry
Chapter 6. Isomers and Stereochemistry Learning objectives: 1. Differentiate chiral and achiral molecules. 2. Recognize and draw structural isomers (constitutional isomers), stereoisomers including enantiomers
More informationLecture Topics: I. Stereochemistry Stereochemistry is the study of the three dimensional structure of molecules
Stereochemistry eading: Wade chapter 5, sections 5-- 5-7 Study Problems: 5-26, 5-3, 5-32, 5-33, 5-34 Key oncepts and Skills: assify molecules as chiral or achiral, and identify planes of symmetry. Identify
More informationCHEM 263 Oct 18, Do they have the same molecular formula?
EM 263 ct 8, 206 To compare the relationship of 2 structures: Do they have the same molecular formula? o ot isomers Do they have the same sequence of atoms (i.e. connectivity)? o onstitutional or tructural
More information(1) Check to see if the two compounds are identical. (2) Recall the definitions of stereoisomers, conformational isomers, and constitutional isomers.
MCAT Organic Chemistry Problem Drill 04: Stereochemistry Question No. 1 of 10 Question 1. Determine the relationship of the molecules shown: O O Question #01 (A) Identical (B) Constitutional isomers (C)
More information18 Isomerism and stereochemistry
s manual for Burrows et.al. hemistry Third edition 8 Isomerism and stereochemistry s to worked examples WE 8. Structural isomers (on p. 88 in hemistry ) For the following four compounds, A D, identify
More informationSTEREOGENIC CENTER (Chiral Center,Asymmetric Center)
STEREOGENI ENTER (hiral enter,asymmetric enter) Atom (usually carbon) to which 4 different groups are attached: W Z X Y Many, but not all, molecules which contain a stereogenic center are chiral. (A molecule
More information1. Make two superimposable models of bromochloroiodomethane. Position your models on your desk to prove that they are superimposable.
HM 204 Organic hemistry Introduction to Stereochemistry Recall that two models are identical if they can be superimposed without breaking bonds. Recall that conformations (conformers) are structures that
More informationORGANIC - BROWN 8E CH.3 - STEREOISOMERISM AND CHIRALITY.
!! www.clutchprep.com CONCEPT: TYPES OF ISOMERS Isomers are used to describe relationships between similar molecules. We can order these relationships in order of increasing similarity Page 2 CONCEPT:
More informationStereochemistry. 3-dimensional Aspects of Tetrahedral Atoms
Stereochemistry 3-dimensional Aspects of Tetrahedral Atoms Chiral Entire molecules or simply atoms that do not possess a plane of symmetry are called chiral. Conversely, the term achiral is applied to
More informationUnit One Part 8: stereochemistry
Unit ne Part 8: stereochemistry 1 Describe the difference between stereoisomers & structural isomers omenclature used for double bonds (cis-trans or E-Z) Predict conformations of cyclohexanes Define chirality
More informationCH 3 C 2 H 5. Tetrahedral Stereochemistry
Ch 5 Tetrahedral Stereochemistry Enantiomers - Two non-superimposable mirror image molecules - They are stereoisomers with the same atoms and bonds, but different spatial geometries. - The two molecules
More informationQuestion. Chapter 5 Structure and Preparation of Alkenes (C n H 2n ): Elimination Reactions
hapter 5 Structure and Preparation of Alkenes ( n 2n ): Elimination Reactions The molecular formula of β-arotene is 40 On catalytic hydrogenation, β-carotene is converted to a saturated hydrocarbon of
More informationE30 ENANTIOMERS Chirality in organic chemistry
E30 ENANTIMERS hirality in organic chemistry TE TASK To investigate the nature of chirality in organic chemistry. TE SKILLS By the end of the experiment you should be able to: use molecular modelling kits
More informationSTEREOCHEMISTRY. 2. Define the following, and tell whether or not a given compound or structure fits the description or possesses the feature.
A STUDENT SOULD BE ABLE TO: STEREOEMISTRY 1. Determine the relationship between two given structures (which may be any of the kinds below). Also, define each of the following terms, and give examples of
More informationLecture 8: September 13, 2012
CHM 223 Organic Chemistry I Fall 2012, Des Plaines Prof. Chad Landrie Lecture 8: September 13, 2012 Skillbuilder 2 Ch. 5: Stereochemistry (Sec8ons 5.1-5.5) CHM 223 Organic Chemistry I Fall 2012, Des Plaines
More informationCHEM1902/ N-9 November 2014
CEM1902/4 2014-N-9 November 2014 The elimination of 2 O from alcohol A can form the isomeric alkenes B and C. Elimination of Br from the alkyl halide D can generate the same two alkenes. 7 Assign the absolute
More informationCHEM J-10 June The structure of ( )-linalool, a commonly occurring natural product, is shown below.
CEM1102 2014-J-10 June 2014 The structure of ( )-linalool, a commonly occurring natural product, is shown below. 4 What is the molecular formula of ( )-linalool? C 10 18 O Which of the following best describes
More information02/07/2017. Isomerism. Structural isomerism. 1. Structural isomerism different linkages of atoms. Same molecular formula Different structural formulae
hain isomerism Position isomerism Metamerism Tautomerism Functional group isomerism Geometrical isomerism Optical isomerism 02/07/2017 Isomerism The presence of two or more compounds which has the same
More informationStereochemistry Tutorials: Assigning R/S and E/Z
Stereochemistry Tutorials: Assigning R/S and E/Z Definitions for vocabulary words can be found in the llustrated Glossary of rganic hemistry, available at the course web site. Discussion: Every organic
More informationUnless otherwise stated, all images in this file have been reproduced from:
Unless otherwise stated, all images in this file have been reproduced from: Blackman, Bottle, Schmid, Mocerino and Wille, hemistry, 2007 (John Wiley) ISBN: 9 78047081 0866 1 hemistry 1B EM1002 Lecture
More informationCopyright 2009 James K Whitesell
Copyright 2009 James K Whitesell 5-1 These two molecules, cyclopropylcyclopentane and cyclobutycyclobutane have the same number of carbon and hydrogen atoms and thus they are constitutional isomers. 5-2
More information5.1 Alkene Nomenclature
5.1 Alkene Nomenclature Alkenes Alkenes are hydrocarbons that contain a carbon-carbon double bond also called "olefins" characterized by molecular formula n 2n said to be "unsaturated" Alkene Nomenclature
More informationCHAPTER 5. Stereoisomers
CHAPTER 5 Stereoisomers We have already covered two kinds of isomerism: Constitutional Isomers (structural isomers) Stereoisomers Examples of Constitutional Isomers: Examples of Stereoisomers: Another
More information4 1,2,3 - Clockwise 1,2,3 - Counterclockwise S
Assigning Stereochemistry using Fischer Projections: Fischer projections can be used to assign stereochemistry. If the th (lowest) priority group is vertical the other three groups will show clockwise
More informationHO C. Explain briefly (in one or two short sentences) the meaning of the following basic stereochemical terms.
Chem 232 D. J. Wardrop wardropd@uic.edu Problem et 3 Answers Question 1. Four compounds, each having the molecular formula C 3 5, have the I spectra summarized below. What are their structures? a. ne sharp
More informationAssign (R) or (S) configurations to the chiral carbons in the following molecules: enantiomers
CAPTER 5: STERECEMISTRY (cont.) Assign (R) or (S) configurations to the chiral carbons in the following molecules: 3 C 3 C N 2 Molecules With Multiple Chiral Atoms. 1-chloro-2-methylcyclohexane has four
More informationStereochemistry Structural or constitutional isomers... have the same molecular formula but different connectivity (skeletal, positional, functional)
Stereochemistry Structural or constitutional isomers... have the same molecular formula but different connectivity (skeletal, positional, functional) Stereoisomers... have the same connectivity but a different
More informationL35 REVIEW OUTLINE. 1. Reactions. 2. Spectroscopy and Stereochemistry. 3. Preview of Final. CHEM2312: Spring 2008
L35 REVIEW UTLINE 1. Reactions 2. Spectroscopy and Stereochemistry 3. Preview of Final EM2312: Spring 2008 REVIEW F REATINS While the following schemes group reactions by type of functional group, recognize
More informationChemistry 201. MW 12:00pm 1:15pm Examination #2 August 15 th Bronco ID. Question Score Possible Points. 1 (12pts) 2 (24pts) 3 (25pts)
Chemistry 201 MW 12:00pm 1:15pm Examination #2 August 15 th 2016 Name Bronco ID. Question Score Possible Points 1 (12pts) 2 (24pts) 3 (25pts) 4... (12pts) 5 (27pts). Total (100pts) 1. Read each question
More informationCSUS - CH6B Fischer projection and R/S configurations Instructor: J.T., P: 1. a) Fischer Projection can be rotated by 180 only!
CSUS - C6B Fischer projection and R/S configurations Instructor: J.T., P: () Fischer Projection: orizontal line is coming out of the plane of the page. Vertical line is going back behind of the plane of
More informationChem 341 Jasperse Ch. 9 Handouts 1
Chem 341 Jasperse Ch. 9 andouts 1 Ch. 9 Stereochemistry Stereoisomers have the same condensed formulas and basic bonding sequence, but have different 3-dimensional shape and cannot be interconverted 9.1,2
More information240 Chem. Stereochemistry. Chapter 5
240 Chem Stereochemistry Chapter 5 1 Isomerism Isomers are different compounds that have the same molecular formula. Constitutional isomers are isomers that differ because their atoms are connected in
More informationC 4 H 10 O. butanol. diethyl ether. different carbon skeleton different functional group different position of FG
hapter 5: Stereoisomerism- three-dimensional arrangement of atoms (groups) in space 5. verview of Isomerism Isomers: different chemical compounds with the same formula onstitutional isomers: same formula,
More informationMOLECULAR MODELS : STEREOISOMERS
MM.1 MOLEULAR MODELS : STEREOISOMERS Note: No pre-laboratory summary is required for this experiment, but there are some topics you most probably need to review from 351 and you may want to start work
More information1. (3 pts) Circle the highest priority substituent of the following list:
Ch 334 Midterm #3 November 17, 2006 Code 1. (3 pts) Circle the highest priority substituent of the following list: 2. (4 pts) Rank the following groups in order of increasing priority. Place the letter
More informationStereochemistry CHAPTER SUMMARY
2 7 2 7. Introduction APTER SUMMARY Isomers are compounds with identical molecular formulas but different structural formulas. Structural or constitutional isomers differ in the bonding arrangement of
More informationCHEM120 - ORGANIC CHEMISTRY WORK SHEET Answer the following questions with respect to compounds (A) and (B):
EM120 - RGANI EMISTRY WRK SEET 1 1. Answer the following questions with respect to compounds (A) and (B): (B) (A) 5 2 ( 3 ) 2 6 3 2 2 2 ( 3 ) 3 1 2 4 3 () 2 2 3 3 1 3 2 3 (a) Draw the bond-line notation
More informationOH OH OH CH 2 CH 2 C(CH 3 ) 2 (a) CH 3 CHCH 2 CHCH(CH 3 ) 2. (b)
hem 226 Problem Set #8 Fundamentals of rganic hemistry, 4 th edition, John McMurry. hapter 8 1. Give IUPA names for the following alcohols. 2 2 ( 3 ) 2 3 2 ( 3 ) 2 Longest chain = 6 carbons:...hexanediol.
More information1. Chirality & Stereochemistry
hapter 5 Stereochemistry hiral Molecules reated by Professor William Tam & Dr. illis hang h. 5 - About The Authors These Powerpoint Lecture Slides were created and prepared by Professor William Tam and
More informationSTEREOCHEMISTRY A STUDENT WHO HAS MASTERED THE MATERIAL IN THIS SECTION SHOULD BE ABLE TO:
STEREOEMISTRY A STUDENT WO AS MASTERED TE MATERIAL IN TIS SETION SOULD BE ABLE TO: 1. Determine the relationship between two given structures (which may be any of the kinds below). Also, define each of
More informationCHEM 261 Oct 11, Diastereomers. Enantiomers. Pheromones: from Greek pherein horman meaning to carry excitement. Discovered by Adolf Butenanot.
EM 26 ct, 208 REALL: is Trans Trans Diastereomers Enantiomers Enantiomers have opposite stereochemistry at every stereocenter (chiral center) Diastereomers are all stereoisomers that are not enantiomers
More information10/4/2010. Sequence Rules for Specifying Configuration. Sequence Rules for Specifying Configuration. 5.5 Sequence Rules for Specifying.
5.5 Sequence Rules for Specifying Configuration Configuration The three-dimensional arrangement of substituents at a chirality center Sequence rules to specify the configuration of a chirality center:
More informationOrganic Chemistry Chapter 5 Stereoisomers H. D. Roth
Organic Chemistry Chapter 5 Stereoisomers. D. Roth 11. Chirality of conformationally mobile systems ring compounds Monosubstituted cycloalkanes cannot have an asymmetric carbon in the ring, because there
More informationDue Date: 2) What is the relationship between the following compounds?
Assignment #5 Name CHEM201 Student #: Due Date: MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) What type of isomers are CH3CH2OCH3 and CH3CH2CH2OH?
More informationChem 201 Midterm Winter, 2013 Beauchamp
hem 0 Midterm Winter, 0 Beauchamp Name Problems Points redit. Functional Group Nomenclature. Degrees of Unsaturation & Functional Groups or Various Nomenclature Terms. D structure, Functional Groups 0.
More informationSTEREOCHEMISTRY A STUDENT SHOULD BE ABLE TO:
A STUDENT SHOULD BE ABLE TO: STEREOCHEMISTRY 1. Determine the relationship between two given structures (which may be any of the kinds below). Also, define the following terms, and give examples of pairs
More information"Check" all descriptions that apply. is a meso compound has at least one chiral diastereomer has an enantiomer has at least one achiral diastereomer
I. ( points) ame Page For each of the compounds shown below: () Identify any sources of stereochemistry by circling the site(s) and providing appropriate stereolabel(s) for each site. If no stereochemistry
More informationChapter 5 Stereochemistry. Stereoisomers
Chapter 5 Stereochemistry Stereoisomers Same bonding sequence Different arrangement in space Example: OOC-C=C-COO has two geometric (cis-trans) isomers: COO COO COO COO Stereochemistry Slide 5-2 1 Chirality
More informationName. Optical Isomers
Name KEY Lab Day Optical Isomers Introduction: Stereoisomers are compounds that have the same structural formulas, but differ in their spatial arrangements. Two major types of stereoisomers are geometric
More informationLECTURE #09 Thurs., March 06, in Lect.07 s notes actually Biological relevance of chirality
EM 221 section 52 LETURE #09 Thurs., March 06, 2008 ASSIGNED READINGS: TDAY S LASS: 5.1-5.4 in Lect.07 s notes actually 5.21 Biological relevance of chirality 5.5-5.14 Drawing & naming enantiomers & diastereomers
More informationStereochemistry. Based on McMurry s Organic Chemistry, 6 th edition
Stereochemistry Based on McMurry s Organic Chemistry, 6 th edition Stereochemistry! Some objects are not the same as their mirror images (technically, they have no plane of symmetry)! A right-hand glove
More informationStereochemistry. In organic chemistry, subtle differences in spatial arrangements can give rise to prominent effects.
Stereochemistry This is study of the 3 dimensional arrangement in space of molecules. In organic chemistry, subtle differences in spatial arrangements can give rise to prominent effects. E.g. the isomers
More informationOnce familiar with chiral centers, models, drawings and mental images NOW: Final representation of chiral centers: Fischer Projections
Once familiar with chiral centers, models, drawings and mental images NOW: Final representation of chiral centers: Fischer Projections Fischer Projections are 2-dimensional representations of 3-dimensional
More information9. Stereochemistry. Stereochemistry
9. Stereochemistry Stereochemistry Some objects are not the same as their mirror images (technically, they have no plane of symmetry) A right-hand glove is different than a left-hand glove (See Figure
More informationCHEMISTRY PAPER No. : 7 MODULE No. : 23 (Optical Isomerism)
Subject Chemistry Paper No and Title Module No and Title Module Tag Paper 7 : Inorganic Chemistry-II (Metal-Ligand Bonding, Electronic Spectra and Magnetic Properties of Transition Metal Complexes) 23
More information(2/94)(6,7,9/95)(8,9/97)(12/99)(1/00) Neuman Chapter 4
4: Stereochemistry Tetrahedral Carbon Configurations Stereoisomers and R,S Assignments The Number and Types of Stereoisomers Drawing Structures of Stereoisomers Cyclic Molecules Optical Activity Preview
More informationChemistry 3A. Midterm 2. Dr. Steven Pedersen November 9, Student name: ANSWERS Student signature:
r. Steven Pedersen ovember 9, 2015 Chemistry 3A Midterm 2 Student name: ASWERS Student signature: Problem 1 Problem 2 Problem 3 Problem 4 Problem 5 Problem 6 Problem 7 (18 pts) (30 pts) (32 pts) (18 pts)
More informationStereochemistry. Conformers: Compounds that differ by orientation of atoms in space. They are interconvertible via rotation about single bonds.
Stereochemistry Terms onformers: ompounds that differ by orientation of atoms in space. They are interconvertible via rotation about single bonds. onstitutional isomers (also called structural isomers):
More informationCHEMISTRY - TRO 4E CH.21 - ORGANIC CHEMISTRY.
!! www.clutchprep.com TOPI: ORGANI EMISTRY Organic hemistry is the study of carbon and the other common nonmetals it is connected to:,, &. Some organic molecules are made of just carbons and hydrogens
More informationBasic Stereochemical Considerations
Basic Stereochemical Considerations Key words: chirality, chiral carbon, enantiomers, diastereomers, absolute configuration, relative configuration, optical activity 1 Key Concepts Basics of projection
More informationMULTIPLE CHOICE QUESTIONS Stereochemistry
MULTPLE COCE QUESTONS Stereochemistry Topic: dentifications and Comparisons Answers on page 10 1. Which of the following is the enantiomer of the following substance? C 3 C 3 C 3 C 3 A) B) C) D) t does
More informationOrganic Chemistry. Chemical Bonding and Structure (2)
For updated version, please click on http://ocw.ump.edu.my Organic Chemistry Chemical Bonding and Structure (2) by Dr. Seema Zareen & Dr. Izan Izwan Misnon Faculty of Industrial Science & Technology seema@ump.edu.my
More informationSpecial Topics for Final Exam: Topics that Frequently Appear on ACS or Standardized Tests, But That I Didn t Cover in Class This Year
hem 360 Jasperse Final xam otes. Special Topics 3 Special Topics for Final xam: Topics that Frequently ppear on S or Standardized Tests, ut That I idn t over in ass This Year 1. poxides as lectrophiles
More informationChapter 5 Stereochemistry
Chapter 5 Stereochemistry References: 1. Title: Organic Chemistry (fifth edition) Author: Paula Yurkanis Bruice Publisher: Pearson International Edition 2. Title: Stereokimia Author: Poh Bo Long Publisher:
More informationThree-Dimensional Structures of Drugs
Three-Dimensional Structures of Drugs Moore, T. (2016). Acids and Bases. Lecture presented at PHAR 422 Lecture in UIC College of Pharmacy, Chicago. Chiral drugs are sometimes sold as one enantiomer (pure
More informationLab Workshop 1: Nomenclature of alkane and cycloalkanes
Lab Workshop 1: Nomenclature of alkane and cycloalkanes Each student work group choose a Leader (reads activity out loud, poses questions to group), Facilitator (makes sure everyone is participating equally,
More informationIt is possible for organic molecules with the same molecular formula to have different structures
Isomerism It is possible for organic molecules with the same molecular formula to have different structures Definition- Structural isomers: same molecular formula different structures (or structural formulae)
More informationChapter 5 Stereochemistry
Organic Chemistry, Second Edition Janice Gorzynski Smith University of Hawai i Chapter 5 Stereochemistry Prepared by Rabi Ann Musah State University of New York at Albany Copyright The McGraw-Hill Companies,
More informationNumber of d electrons CO 2 carbon dioxide +IV or +4 0
CEM1611 2007-J-2 June 2007 Complete the following table. Give, as required, the formula, the systematic name, the oxidation number of the underlined atom and, where indicated, the number of d electrons
More informationChemistry 2321 OLD TEST QUESTIONS CH 3
Test No. 2 hemistry 2321 LD TEST QUESTNS Professor M. Pomerantz 1. n the following reaction the electrophile is: 3 3 + the group none of these 2. Given the reaction shown and the bond dissociation energies
More informationIntroduction to Organic Chemistry, Unit 3: Chirality at Carbon Centers Bring your model kits to class!
Introduction to rganic hemistry, Unit 3: hirality at arbon enters Bring your model kits to class! rganic hemistry #3 1 bjectives: by the end of this unit, you should be able to... Identify the chiral centres
More informationStereochemistry Terminology
Stereochemistry Terminology Axis of symmetry: When an operation on an axis C n, where n = 360 /rotation, leads to a structure indistinguishable from the original. C 2 180 Plane of symmetry: (σ) A plane
More informationEnantiomers. nonsuperimposable mirror image Both Configuration will be opposite. Both Configuration will be opposite
Optical Isomerism Isomerism of Organic Molecules: Two chiral centers Many organic compounds have more than one asymmetric carbon. The more asymmetric carbons a compound has, the more number of stereoisomers
More informationCalifornia State Polytechnic University, Pomona 1
alifornia State Polytechnic University, Pomona 1 hem 2010 Final Fall, 2018 Beauchamp ame Problems Points redit 1. Functional Group omenclature (1 large structure) 30 2. 3D structure and resonance 20 3.
More information13. Free Radical Chemistry
hem 201 Study Session Final Beauchamp ame Problems Points redit 1. Functional Group omenclature (1 large structure) 2. Various possibilities: Types of Isomers, Degrees of Unsaturation, common nomenclature,
More informationOrganic: module 4 revision guide. Basic definitions to know. Drawing Displayed formulae
opyright Goalby Bancroft's School rganic: module 4 revision guide ydrocarbon is a compound consisting of hydrogen and carbon only Basic definitions to know Saturated: ontain single carbon-carbon bonds
More informationOption II: Chiral + Achiral = Optically Active Diastereomers
Option II: Chiral + Achiral = Optically Active Diastereomers What about additions to chiral alkenes? The previous examples were reactions done on achiral alkenes. What is the difference when an alkene
More informationunsaturated (one or more pi bonds) alkanes alkenes alkynes benzene naming alkanes C 4 H 10 C 5 H 12 C 6 H 14 C 7 H 16 C 8 H 18 C 9 H 20 C 10 H 22
hapter 4: Alkanes and ycloalkanes [Sections: 4.1-4.14] Basic Organic ompound Nomenclature hydrocarbons: comprised of just carbon and hydrogen saturated (no pi bonds) unsaturated (one or more pi bonds)
More informationOrganic Chemistry 1 CHM 2210 Exam 2 (October 10, 2001)
Organic Chemistry 1 CM 2210 Exam 2 (October 10, 2001) Name (print): _ Signature: _ Student ID Number: _ There are 10 multiple choice problems (4 points each) on this exam. Record the answers to the multiple
More informationCalifornia State Polytechnic University, Pomona Nomenclature (one structure) 25
alifornia State Polytechnic University, Pomona 1 hem 314 Final Exam Spring, 2005 Beauchamp ame Problem Points redit 1. omenclature (one structure) 25 2. 2D Lewis structure (large structure with 20 possible
More informationCHM1321 Stereochemistry and Molecular Models Assignment. Introduction
CM1321 Stereochemistry and Molecular Models Assignment Note: A significant amount of background information is provided in the following sections. More detail is found in the Mechanistic Patterns textbook
More information2. 2D Lewis structure (large structure with possible formal charge) 20
hem 201 Final Fall, 2017 Beauchamp ame Problems Points redit 1. Functional Group omenclature (1 large structure) 30 2. 2D Lewis structure (large structure with possible formal charge) 20 3. yclohexane
More informationEmpirical formula: shows the simplest whole number ratio of atoms of each element in the compound
3.7 rganic naming and Isomerism ydrocarbon is a compound consisting of hydrogen and carbon only Basic definitions to know Saturated: ontain single carbon-carbon bonds only Unsaturated : ontains a = double
More informationChapter 3: Stereochemistry & Chirality
Chapter 3: Stereochemistry & Chirality 1. Chiral & Achiral Compounds - Identifying Stereocenters 2. Assigning R & S configurations 3. Diastereomers - Molecules with two or more stereocenters 4. Properties
More informationFirst Name CARI / PHIL / ADAM / HEATHER. Chem 30A Fall 2004 MIDTERM #1 (50 Min) Weds October 27th
Last First MI Student ID Number: Total Score Circle the name of your TA: CARI / PIL / ADAM / EATER Discussion Section Day: Time: / 100 Chem 30A Fall 2004 MIDTERM #1 (50 Min) Weds October 27th INTERPRETATION
More information