3. Two unknown samples are found to have the same R f value under identical TLC conditions. Are they the same compound? Explain.
|
|
|
- Theodore Gibson
- 5 years ago
- Views:
Transcription
1 I. Techniques in Organic Lab and TLC Analysis a. Thin-Layer Chromatography 2. A TLC plate displays the compound spot approximately 3.2 cm above the base line upon visualization; the solvent ran 4.1 cm up the plate. Calculate the R f value of the compound. 3. Two unknown samples are found to have the same R f value under identical TLC conditions. Are they the same compound? Explain. 4. A TLC plate has a polar stationary phase (silica gel) and a non-polar mobile phase (EtOAc/Hexanes). Two unknown compounds are spotted and allowed to run up the plate. The spot for Compound A traveled 1.3 cm above the base line; Compound B traveled 3.6 cm above the base line. Which compound would you expect to be more polar? Why? 5. Identify at least 3 different methods used for visualization of a TLC plate. II. Experiment 1: Extraction of Caffeine from Tea a. Vacuum Filtration
2 b. Using Pasteur Pipets c. Microscale Extraction d. Drying Agents e. Solvent Removal 2. Write the structure of caffeine: 3. What is the purpose of adding CaCO 3 to the reaction vessel? 4. When performing an extraction with dichloromethane as the organic solvent, would you expect the aqueous layer to be on top or on bottom? Why? 5. What is the function of anhydrous MgSO 4 in this experiment?
3 III. Experiment 9.1: S N 1/S N 2 Reactivity of Alkyl Halides 1. List the experimental conditions that favor S N 1 reactions and those that favor S N 2 reactions. 2. Write the reactions performed in this experiment: a. S N 1 Favored: b. S N 2 Favored: 3. Describe the mechanism for S N 2 reactions; include a description of the transition state and the resulting stereochemistry of the product. 4. Describe the mechanism for S N 1 reactions; identify the key differences between this mechanism, and the mechanism described in Question Which one of the following alkyl halides gives a stable carbocation? 6. Rank the alkyl halides above in terms of increasing S N 1 reactivity.
4 IV. Experiment 9.2: Synthesis and Identification of Alkyl Bromides from Unknown Alcohols a. Reflux b. Simple Distillation c. Microscale Extractions d. Short-Path Distillation e. NMR Spectroscopy 2. Write the mechanism of the reaction performed in this experiment. 3. What is the purpose of sulfuric acid in the reaction? 4. What is the function of the anhydrous CaCl 2? 5. In the extraction steps, why was the product washed with aqueous sodium bicarbonate?
5 6. Review the 1 H NMR spectra provided by your teaching assistant. Be sure to practice identifying unknown compounds when given the 1 H NMR spectra and molecular formula. 7. Assuming 80% yield, how many grams of the alcohol starting material do you need to prepare 2.0 moles of the desired bromide product? V. Experiment 4: Synthesis of Salicylic Acid a. Microscale Reflux b. Boiling Stones c. Heating Methods d. Microscale Recrystallization e. Melting Points 2. Write the reaction performed in this experiment.
6 3. Write the mechanism for the reaction above. 4. What is hydrolysis? 5. What is the catalyst of the reaction? 6. Suppose that you obtain 1.0 g of salicylic acid (MW = 138) from the hydrolysis of 1.3 ml of methyl salicylate (MW= 152, density = 1.17 g/ml). Calculate the percent yield. VI. Experiment 5: Analgesics and Synthesis of Aspirin a. Heating Methods b. Microscale Recrystallization c. Mixed Solvent for Recrystallization d. Melting Points 2. Write the reaction performed in this experiment.
7 3. Write the mechanism for the reaction above. 4. What is the function of the concentrated phosphoric acid in this reaction? 5. The process by which aspirin is synthesized from salicylic acid is best described as. VII. Project 4: Interconversion of 4-tert-Butylcyclohexanol and 4-tert- Butylcyclohexanone a. IR Spectroscopy 2. Write the reaction for the oxidation performed in this experiment. Identify the oxidizing agent. 3. Write the reaction for the reduction performed in this experiment. Identify the reducing agent. 4. Predict the products for the reaction shown on the following page. Draw in the mechanism arrows.
8 5. In covalent organic systems, it is easiest to think of oxidation as the. 6.The oxidation of a primary alcohol yields a(n). 7. The oxidation of a secondary alcohol yields a(n). 8. The oxidation of a tertiary alcohol. 9. Draw the cis-isomer of 4-tert-butylcyclohexanol. What is the approximate 1 H NMR shift of the methine proton on the carbon bearing the hydroxyl group? 10. Draw the trans-isomer of 4-tert-butylcyclohexanol. What is the approximate 1 H NMR shift of the methine proton on the carbon bearing the hydroxyl group? 11. What equation would you use to determine the ratio of cis-to-trans isomers based on the 1 H NMR integration? 12. What equation would you use to determine the % of cis-isomers present based on the 1 H NMR integration?
216 S10-Exam #1 Page 2. Name
216 S10-Exam #1 Page 2. Name I. (3 points) Arrange the following four compounds in order of their R f values when analyzed by thinlayer chromatography (TLC) on silica gel-coated plates using C 2 Cl 2 as
Review Questions for the Chem 2315 Final Exam
Review Questions for the Chem 2315 Final Exam These questions do not have to be turned in, and will not be graded. They are intended to help you review the material we have covered in the lab so far, and
The Fragrance of Rum, Isobutyl Propionate
The Fragrance of Rum, Isobutyl Propionate Exp t 82 from K. L. Williamson, Macroscale and Microscale rganic Experiments, 2nd Ed. 1994, Houghton Mifflin, Boston p385; revised Prelab Exercise 6/27/06 Give
Rule 2. Rule 1. Rule 4. Rule 3. Rule 5. Rule 6. Rule 7. Rule 8
Rule 1 Follow the directions in your course reader, of your teaching assistant and of your instructor. They are usually much more experienced doing chemistry. Rule 3 When in doubt, ask. This will make
Exp t 83 Synthesis of Benzyl Acetate from Acetic Anhydride
Exp t 83 Synthesis of Benzyl Acetate from Acetic Anhydride from K. L. Williamson, Macroscale and Microscale rganic Experiments, 2nd Ed. 1994, Houghton Mifflin, Boston p385; revised Prelab Exercise: 10/14/00
KUT 206/2 Chemistry Practical I - Organic
KUT 206/2 Chemistry Practical I - Organic Course Objective: 1) To become acquainted with the chemistry of functional groups and the principles of qualitative organic analysis. 2) To introduce the application
Chemistry 283g Experiment 4
Chemistry 283g xperiment 4 XPRIMNT 4: lectrophilic Aromatic Substitution: A Friedel-Craft Acylation Reaction Relevant sections in the text: Fox & Whitesell, 3 rd d. Chapter 11, especially pg. 524-526,
12A Lab Activity Notes
12A Lab Activity Notes Lab Activity 12 In this experiment, RX reacts with a base. The methoxide ion (CH 3 O - ) is a small, strong base. The tert-butoxide ion ((CH 3 ) 3 CO - ) is a large, strong base.
Dehydration of Alcohols-Gas Chromatography
Dehydration of Alcohols-Gas Chromatography OBJECTIVE In this lab, we will examine the phosphoric acid catalyzed dehydration of 2-methylcyclohexanol. Gas chromatography will be used to monitor the outcome
Course Outline For: Organic Chemistry I (CHM 270) Credits: 5 Contact Hours: Lecture: 3 Lab: 4
Course Outline For: Organic Chemistry I (CHM 270) Credits: 5 Contact Hours: Lecture: 3 Lab: 4 NOTE on Laboratory: Both Lecture and Laboratory must be taken simultaneously; separate grades will not be given
PHYSICAL CONSTANTS: MELTING POINTS, BOILING POINTS, DENSITY
CRYSTALLIZATION: PURIFICATION OF SOLIDS ANSWERS TO PROBLEMS: 1. (a) (b) (c) (d) A plot similar to line A in Figure 5.1 on page 559 will be obtained. The line will be slightly curved. All of the substance
EXPERIMENTS 5-8: BACKGROUND OXIDATION REDUCTION REACTIONS IN ORGANIC CHEMISTRY: THE INTERCONVERSION OF
EXPERIMENTS 5-8: BACKGRUND XIDATIN REDUCTIN REACTINS IN RGANIC CEMISTRY: TE INTERCNVERSIN F 4-tert-BUTYLCYCLEXANL AND 4-tert-BUTYLCYCLEXANNE 1 UTLINE AND GALS F TE PRJECT: This is a 4 week project that
The Synthesis of Triphenylmethano. will synthesize Triphenylmethanol, a white crystalline aromatic
HEM 333L rganic hemistry Laboratory Revision 2.0 The Synthesis of Triphenylmethano ol In this laboratory exercise we will synthesize Triphenylmethanol, a white crystalline aromatic compound. Triphenylmethanol
R R CH. Some reactions of alcohols vary depending on their classification as 1º, 2º, or 3º alcohols.
Experiment: Alcohol Reactions Alcohols are important organic molecules characterized by an alkyl group covalently bonded to a hydroxyl group. They may be classified as primary, secondary, or tertiary,
Page 2. Name. 1 2 (racemate) 3 4 (racemate) Answer: lowest R f. highest R f % completion solvent front. 50% completion
Page 2. Name I. (4 points) In connection with our research directed at probing the molecular mechanism of chemical carcinogenesis, we carried out a series of synthetic reactions shown below. Arrange these
Experiment 7: Synthesis of an Alkyne from an Alkene
Experiment 7: Synthesis of an Alkyne from an Alkene Part A: Synthesis of meso-stilbene dibromide Part B: Synthesis of diphenylacetylene Reading: Carey & Guiliano Ch. 9 pgs 368-372 Note: This is exp #8
Chemistry 283g- Experiment 4
EXPEIMENT 4: Alkenes: Preparations and eactions elevant sections in the text: Fox & Whitesell, 3 rd Ed. Elimination eactions of Alcohols: pg. 426-428, 431-432 Electrophilic Addition to Alkenes: pg. 484-488,
1 Answer. 2 Answer A B C D
216 W10-Exam #1 Page 1 of 9. I. (8 points) 1) Given below are infrared (IR) spectra of four compounds. The structures of compounds are given below. Assign each spectrum to its compound by putting the letter
Montgomery County Community College CHE 261 Organic Chemistry I
Montgomery County Community College CHE 261 Organic Chemistry I 4-3-3 COURSE DESCRIPTION: This course covers the nomenclature, structure, properties and reactions of many important classes of organic compounds.
36B-BioOrganic Modifications for Technique Experiments. Technique of Thin-Layer Chromatography
36B-BioOrganic Modifications for Technique Experiments Technique of Thin-Layer Chromatography Experiment Title: Applying TLC As A Method to Monitor the Multistep Synthesis of Aspirin You will be using
CHEM 2240L Final Exam Review Topics
CHEM 2240L Final Exam Review Topics Many students do not adequately prepare for the final exam in 2240L.The average grade is typically in the mid 60 s. Each semester, some students score in the 90 s, and
Experiment 6: Dehydration of 2-Methylcyclohexanol
Experiment 6: Dehydration of 2-Methylcyclohexanol Dehydration of 2-Methylcyclohexanol This week's reaction: A B - dehydration of a 2 alcohol to give a mixture of alkene isomers - H 3 PO 4 is a catalyst
NaBr, H2SO4 CH3CH2CH2CH2Br + NaHSO4 + H2O. 1-Bromobutane bp C den MW n 1.439
Exp t 140 The SN2 Reaction: 1-Bromobutane from K. L. Williamson, Macroscale and Microscale Organic Experiments, 2nd Ed. 1994, Houghton Mifflin, Boston. p247; revised 2/22/02 Prelab Exercise: Review the
University of Wisconsin Chemistry 116 Preparation and Characterization of Aspirin and Some Flavoring Esters *
University of Wisconsin Chemistry 116 Preparation and Characterization of Aspirin and Some Flavoring Esters * Esters are an important class of organic compounds commonly prepared via a condensation reaction
Ester Synthesis And Analysis: Aspirin and Oil of Wintergreen. Vanessa Jones November 19, 2015 Thursday 8:30 Lab Section Lab Partner: Melissa Blanco
Ester Synthesis And Analysis: Aspirin and Oil of Wintergreen Vanessa Jones November 19, 2015 Thursday 8:30 Lab Section Lab Partner: Melissa Blanco INTRODUCTION For this lab, students attempted to synthesize
Free Radical Chlorination
Free Radical Chlorination Although saturated hydrocarbons are inert to most acidic and basic reagents, they can be halogenated in the presence of a free radical initiator. The process is a chain reaction,
12AL Experiment 11 (3 days): Nucleophilic Substitution Reactions
12AL Experiment 11 (3 days): Nucleophilic Substitution Reactions Instructor note: Day 1 (half of the class); Day 2 (other half); Day 3 (everyone to finish up any separation & purification steps etc). Initial
Chemistry 216. First Exam (March 16, 2010) (1 hr 15 min, 80 points) Dr. Kyoung Moo Koh. Lab section. GSI name. Name Please print.
Chemistry 216 First Exam (March 16, 2010) (1 hr 15 min, 80 points) Dr. Kyoung Moo Koh Lab section GSI name Name Please print Signature Student ID# I 8 II 10 III 6 IV 12 V 12 VI 10 VII 14 VIII 8 Total 80
Lisa Barton CHEM 2312 Organic Chemistry Performed: 2/4/12. Synthesis of Aspirin
Lisa Barton CHEM 2312 rganic Chemistry Performed: 2/4/12 Synthesis of Aspirin bjective: The goal of this experiment is to synthesize Aspirin (Acetylsalicylic Acid) from the reaction of Salicylic acid and
Name: Student Number: University of Manitoba - Department of Chemistry CHEM Introductory Organic Chemistry II - Term Test 1
Name: Student Number: University of Manitoba - Department of Chemistry CEM 2220 - Introductory Organic Chemistry II - Term Test 1 Thursday, February 16, 2012; 7-9 PM This is a 2-hour test, marked out of
Wittig Reaction. Mulcahy, Seann P. Boston University Boston University
Boston University penbu Chemistry http://open.bu.edu rganic Chemistry Laboratory Experiments 2012-01-03 Wittig Reaction Mulcahy, Seann P. https://hdl.handle.net/2144/2688 Boston University The Wittig Reaction
September 2011 BOTH THEORY AND LABORATORY PARTS OF THIS COURSE MUST BE TAKEN CONCURRENTLY IN ORDER TO RECEIVE CREDIT.
FARMINGDALE STATE COLLEGE DEPARTMENT OF CHEMISTRY COURSE OUTLINE: COURSE TITLE: Dr. M. De Castro September 2011 Organic Chemistry I COURSE NUMBER: CHM 270 CREDITS: 5 CONTACT HOURS: Lecture: 3 Laboratory:
Homework - Review of Chem 2310
omework - Review of Chem 2310 Chapter 1 - Atoms and Molecules Name 1. What is organic chemistry? 2. Why is there an entire one year course devoted to the study of organic compounds? 3. Give 4 examples
ORG1 Syntheses of Acetaminophen and Aspirin
RG1 Syntheses of Acetaminophen and Aspirin Estimated Time Required: 60 minutes Introduction Ethanoylation (better known as acetylation) is the introduction of an acetyl functional group onto a suitable
(2) After dissolving a solid in a solvent at high temperature, the solution is not filtered.
Name Key 216 W13-Exam No. 1 Page 2 I. (10 points) The goal of recrystallization is to obtain purified material with a maximized recovery. For each of the following cases, indicate as to which of the two
Exp't 141. Exp't 141
Exp't 141 Exp't 141 Chlorination of 1-Chlorobutane from K L Williamson, Macroscale and Microscale Organic Experiments, 2nd Ed 1994, Houghton Mifflin, Boston p255, Rev 10/13/98 Prelab exercise: If there
(a) Name the alcohol and catalyst which would be used to make X. (2)
1 The chemical X is an ester with formula CH 3 COOC(CH 3 ) 3 which occurs in raspberries and pears. It can be prepared in the laboratory by refluxing ethanoic acid with an alcohol in the presence of a
SYNTHESIS OF 1-BROMOBUTANE Experimental procedure at macroscale (adapted from Williamson, Minard & Masters 1 )
SYNTHESIS OF 1-BROMOBUTANE Experimental procedure at macroscale (adapted from Williamson, Minard & Masters 1 ) Introduction 1-bromobutane is a primary alkyl halide (primary alkyl) and therefore it is produced
Lab 2. Go Their Separate Ways: Separation of an Acid, Base, and Neutral Substance by Acid-Base Extraction
Lab 2. Go Their Separate Ways: Separation of an Acid, Base, and Neutral Substance by Acid-Base Extraction How can I use an acid-base reaction to separate an acid-base-neutral mixture? Objectives 1. use
CH 241 EXPERIMENT #6 WEEK OF NOVEMBER 12, NUCLEOPHILIC SUBSTITUTION REACTIONS (S N 1 and S N 2)
C 241 EXPERIMENT #6 WEEK OF NOVEMBER 12, 2001 NUCLEOPILIC SUBSTITUTION REACTIONS (S N 1 and S N 2) Background By the time you do this experiment we should have covered nucleophilic substitution reactions
DEHYDRATION OF ALCOHOLS-GAS CHROMATOGRAPHY
DEHYDRATION OF ALCOHOLS-GAS CHROMATOGRAPHY OBJECTIVE In this lab, one will examine the phosphoric acid catalyzed dehydration of 2-methylcyclohexanol. Gas chromatography will be used to monitor the outcome
Hydroxylation Reactions of Substituted Cyclohexanes Using FeII. Complex-Triethylamine Oxide-Trifluoroacetic Acid
Hydroxylation Reactions of Substituted Cyclohexanes Using FeII Complex-Triethylamine Oxide-Trifluoroacetic Acid (Received January 17, 1986) Substituted cyclohexanes, such as methyl-, ethyl-, and tert-butyl-cyclohexanes,
Review Experiments Formation of Polymers Reduction of Vanillin
Review Experiments Formation of Polymers What is a polymer? What is polymerization? What is the difference between an addition polymerization and a condensation polymerization? Which type of polymerization
Third Midterm Exam CHEM 255 Organic Chemistry I Prof. Bastin November 19, 2009
Third Midterm Exam CEM 255 Organic Chemistry I Prof. Bastin November 19, 2009 Name Section Provide CLEAR, CONCISE answers using unambiguous, carefully drawn structures and arrows for all of the appropriate
Experiment 12: Grignard Synthesis of Triphenylmethanol
1 Experiment 12: Grignard Synthesis of Triphenylmethanol Reactions that form carbon-carbon bonds are among the most useful to the synthetic organic chemist. In 1912, Victor Grignard received the Nobel
media), except those of aluminum and calcium
1- Aspirin occurs as white crystals or as a white crystalline powder. 2- It is slightly soluble in water (1:300), soluble in alcohol (1 :5), chloroform (1:17) & ether (1:15). It dissolves easily in glycerin.
Multistep Synthesis of 5-isopropyl-1,3-cyclohexanedione
Multistep Synthesis of 5-isopropyl-1,3-cyclohexanedione The purpose of this experiment was to synthesize 5-isopropyl-1,3-cyclohexanedione from commercially available compounds. To do this, acetone and
Please Print Dr. Andrew Karatjas (2 hrs, 100 points) Signature
Chemistry 216 First Examination ovember 6, 2007 ame Key Please Print Dr. Andrew Karatjas (2 hrs, 100 points) Signature Please CECK FF your lab section. section # GSI 130 Thomas Sundberg 131 Peter Mai 132
Experiment 9 Dehydration of Methylcyclohexanol Friday/Monday 1
Experiment 9 Dehydration of Methylcyclohexanol Friday/Monday 1 There are three distinct steps in most organic preparative reactions: 1) the reaction itself, 2) isolation of the crude product, and 3) final
Sodium Borohydride Reduction of Benzoin
Sodium Borohydride Reduction of Benzoin Introduction The most common and useful reducing agents for reducing aldehydes, ketones, and other functional groups are metal hydride reagents. The two most common
Student Manual for Aerobic Alcohol Oxidation Using a Copper(I)/TEMPO Catalyst System
Student Manual for Aerobic Alcohol Oxidation Using a Copper(I)/TEMPO Catalyst System icholas J. Hill, Jessica M. Hoover and Shannon S. Stahl* Department of Chemistry, University of Wisconsin-Madison, 1101
Chemistry 283g- Experiment 3
EXPERIMENT 3: xidation of Alcohols: Solid-Supported xidation and Qualitative Tests Relevant sections in the text: Fox & Whitesell, 3 rd Ed. pg. 448-452. A portion of this experiment is based on a paper
For more information about how to cite these materials visit
Author(s): MELO 3D Project Team, 2012 License: Unless otherwise noted, this material is made available under the terms of the Creative Commons Attribution Share-Alike 3.0 License: http://creativecommons.org/licenses/by-sa/2.0/
Chemistry 212 Fall Experiment 3: S N 1 Evaluation Summary
Experiment 3: S N 1 Evaluation Summary Last Name: Atique Date: 11/05/2013 First Name: Anika Lab Day/TA/Group: Wednesday; TA: Patrick Julien; Group C Lab reports must be typed and chemical structures must
CHEM 344 Fall 2015 Final Exam (100 pts)
CHEM 344 Fall 2015 Final Exam (100 pts) Name: TA Name: DO NOT REMOVE ANY PAGES FROM THIS EXAM PACKET. Have a swell winter break. Directions for drawing molecules, reactions, and electron-pushing mechanisms:
Experiment 7: The Synthesis of Artificial Hyacinth Odor (1-bromo-2-phenylethene), Part I
Experiment 7: The Synthesis of Artificial Hyacinth Odor (1-bromo-2-phenylethene), Part I This two-step synthesis involves the following conversion: trans-cinnamic acid 2,3- dibromocinnamic acid 1-bromo-2-phenylethene
DEPARTMENT: Chemistry
CODE: CHEM 203 TITLE: Organic Chemistry I INSTITUTE: STEM DEPARTMENT: Chemistry COURSE DESCRIPTION: Students will apply many concepts from general chemistry to a study of organic chemistry. They will be
To understand concept of limiting reagents. To learn how to do a vacuum filtration. To understand the concept of recrystallization.
E x p e r i m e n t Synthesis of Aspirin Experiment : http://genchemlab.wordpress.com/-aspirin/ objectives To synthesize aspirin. To understand concept of limiting reagents. To determine percent yield.
Exp t 125. Oxidation of Borneol to Camphor. Reduction. Camphor. Borneol. Isoborneol
Exp t 125 Oxidation of Borneol to Camphor Adapted by and R. Minard (Penn State Univ.) from Introduction to Organic Laboratory Techniques: A Microscale Approach, Pavia, Lampman, Kriz & Engel, 1989. Revised
Supporting Information
Supporting Information Nano CuFe 2 O 4 as a Magnetically Separable and Reusable Catalyst for the Synthesis of Diaryl / Aryl Alkyl Sulfides via Cross-Coupling Process under Ligand Free Conditions Kokkirala
Experiment Correlations for Lehman, Microscale Operational Organic Chemistry 2/e
Preface Introduction Laboratory Safety Chemistry and the Environment The Effect of ph on a Food Preservative. Learning Basic Operations. Separating the Components of Panacetin. Extraction and Evaporation.
Name: Student No: CHEM Prof. Marks) (100
Name: Student No: Page 1 of 14 CEM 2220 Organic Chemistry II: Reactivity and Synthesis Prof. P.G. ultin, Dr.. Luong FINAL EXAM Winter Session 2012R Friday April 20, 20122 1:30 pm 4:30 pm Frank Kennedy
Learning Guide for Chapter 11 - Alkenes I
Learning Guide for Chapter 11 - Alkenes I I. Introduction to alkenes - p 1 bond structure, classifying alkenes, reactivity, physical properties, occurrences and uses, spectroscopy, stabilty II. Unsaturation
Experiment DE: Part II Fisher Esterification and Identification of an Unknown Alcohol
Experiment DE: Part II Fisher Esterification and Identification of an Unknown Alcohol Fisher Esterification of an Alcohol (Fraction A) On the Chem 113A website, under "Techniques" and "Videos" review the
CHEM51LC PROJECT DETERMINATION OF DIASTEREOSELCTIVITY USING THERMODYNAMIC VERSUS KINETIC CONTROLLED REDUCTION PROCEDURES: A REDUCTION
CHEM51LC PROJECT DETERMINATION OF DIASTEREOSELCTIVITY USING THERMODYNAMIC VERSUS KINETIC CONTROLLED REDUCTION PROCEDURES: A REDUCTION of 4-tert-BUTYLCYCLOHEXANONE REACTION: Oxidation of an Alcohol, Reductions
Lab 10 Guide: Column Chromatography (Nov 3 9)
Lab 10 Guide: Column Chromatography (Nov 3 9) Column Chromatography/ Isolation of Caffeine from Tea, Exp. 7B, pages 67-72 in Taber After an organic reaction it s common to get a mixture of products. Usually
Exp t 111 Structure Determination of a Natural Product
Exp t 111 Adapted by R. Minard, K. Smereczniak and Jon Landis (Penn State Univ.) from a microscale procedure used by the University of California, Irvine, in its undergraduate labs. The procedure is based
18 Macroscale and Microscale Organic Experiments
360465-P01[01-024] 10/17/02 16:16 Page 18 Sahuja Ahuja_QXP_03:Desktop Folder:17/10/02: 18 Macroscale and Microscale Organic Experiments Preparing a Laboratory Record Use the following steps to prepare
Nucleophilic Substitution Synthesis of 1-Iodobutane.
Nucleophilic Substitution Synthesis of 1-Iodobutane Nucleophilic Substitution of Alkyl alides: Synthesis of 1-Iodobutane C 4 9 Br MW 137.02 d 1.28 g/ml BP 100-104 o C Br + NaI I + NaBr 1-Bromobutane is
EXPERIMENT #1 SEPARATION AND RECOVERY OF ORGANIC COMPOUNDS, THIN LAYER CHROMATOGRAPHY, COLUMN CHROMATOGRAPHY, CRYSTALLIZATION AND MELTING POINTS
EXPERIMENT #1 SEPARATION AND RECOVERY OF ORGANIC COMPOUNDS, THIN LAYER CHROMATOGRAPHY, COLUMN CHROMATOGRAPHY, CRYSTALLIZATION AND MELTING POINTS Overview In the first few weeks of this semester you will
Chromatography 1 of 26 Boardworks Ltd 2016
Chromatography 1 of 26 Boardworks Ltd 2016 Chromatography 2 of 26 Boardworks Ltd 2016 What is chromatography? 3 of 26 Boardworks Ltd 2016 Different instrumental methods can be used to analyse and identify
Kinetic Isotope Effects
1 Experiment 31 Kinetic Isotope Effects Isotopic substitution is a useful technique for the probing of reaction mechanisms. The change of an isotope may affect the reaction rate in a number of ways, providing
Detailed Course Content
Detailed Course Content Chapter 1: Carbon Compounds and Chemical Bonds The Structural Theory of Organic Chemistry 4 Chemical Bonds: The Octet Rule 6 Lewis Structures 8 Formal Charge 11 Resonance 14 Quantum
Scheme 2: Formation of Di- Halide via Chloronium Intermediate
Bromination of Alkenes CHM226 Background The carbon- carbon double bond, also known as an alkene, is a very important functional group in organic chemistry, and is often used as a precursor in the synthesis
WJEC Eduqas AS Chemistry - Component 2 THERMOCHEMISTRY
WJEC Eduqas AS Chemistry - Component 2 THERMOCHEMISTRY enthalpy change of reaction, enthalpy change of combustion and standard molar enthalpy change of formation, Δ fh ϴ Hess s law and energy cycles concept
Kinetic Analysis of Ester Hydrolysis
Boston University penbu Chemistry http://open.bu.edu rganic Chemistry Laboratory Experiments 2011-07-14 Kinetic Analysis of Ester Hydrolysis Mulcahy, Seann P. https://hdl.handle.net/2144/1417 Boston University
EXPERIMENT 2 DEHYDRATION OF 1- & 2-BUTANOL & DEHYDROBROMINATION OF 1 & 2-BROMOBUTANE: ANALYSIS OF GASEOUS PRODUCTS BY GAS CHROMATOGRAPHY
EXPERIMENT 2 DEYDRATION OF 1- & 2-BUTANOL & DEYDROBROMINATION OF 1 & 2-BROMOBUTANE: ANALYSIS OF GASEOUS PRODUTS BY GAS ROMATOGRAPY A part of this procedure is adopted from an article published by.m. Gilow
THE LABORATORY NOTEBOOK
THE LABORATORY NOTEBOOK Courtesy of Dr. Jon Griffiths Introduction A laboratory notebook serves several purposes. The first is for your own reference. To avoid forgetting any important information, the
CHEM2077 HONORS ORGANIC CHEMISTRY SYLLABUS
CHEM2077 HONORS ORGANIC CHEMISTRY SYLLABUS 1. STRUCTURE AND BONDING a] Atomic structure and bonding b] Hybridization and MO Theory c] Drawing chemical structures 2. POLAR COVALENT BONDS: ACIDS AND BASES
Experiment 1: The Borohydride Reduction of 9-Fluorenone to 9-Fluorenol
Experiment 1: The Borohydride Reduction of 9-Fluorenone to 9-Fluorenol Background: In this week s experiment, a metal hydride will be used as a reducing agent. Metal hydrides can be quite reactive, and
6. Extraction. A. Background. (a) (b) (c) Figure 1. Mixing of Solvents
6. Extraction A. Background Extraction is a frequently used technique to selectively transfer a compound of interested from one solvent to another. Extraction is based on solubility characteristics of
Limiting Reagent Synthesis of Aspirin Thomas M. Moffett Jr., SUNY Plattsburgh, 2007.
Limiting Reagent Synthesis of Aspirin Thomas M. Moffett Jr., SUNY Plattsburgh, 007. Aspirin (acetylsalicylic acid) is the most common medicinal drug in use today. Aspirin is an analgesic (pain reliever),
Esterification of Salicylic Acid via Acetic Anhydride for the Pro- duction of Acetylsalicylic Anhydride (Aspirin)
Esterification of Salicylic Acid via Acetic Anhydride for the Pro- duction of Acetylsalicylic Anhydride (Aspirin) Dana M. Feuerhammer Department of Chemistry, American University, Washington, D.C. 20016
SYNTHESIS OF AN AZO DYE revisited (1 or 2 credits)
SYNTHESIS OF AN AZO DYE revisited (1 or 2 credits) This lab you can revisit the fist experiment of this quarter and synthesize more azo dyes of your choice. The old procedure is given below followed by
Experiment : Reduction of Ethyl Acetoacetate
Experiment 7-2007: eduction of Ethyl Acetoacetate EXPEIMENT 7: eduction of Carbonyl Compounds: Achiral and Chiral eduction elevant sections in the text: Fox & Whitesell, 3 rd Ed. Chapter 12, pg.572-584.
FREQUENTLY ASKED QUESTIONS ABOUT SINGLE AND DOUBLE UNKNOWN ANALYSES
FREQUENTLY ASKED QUESTIONS ABOUT SINGLE AND DOUBLE UNKNOWN ANALYSES TABLE OF CONTENTS 1. ON PREPARATION FOR THE EXPERIMENTS 2 2. ON PHYSICAL PROPERTIES..3 3. ON SOLUBILITY TESTS USING ACID-BASE CHEMISTRY...4
Name Test 2 (11/5) CHEM 0101 (Intro Chem) Fall 2008
ame Test 2 (11/5) EM 0101 (Intro hem) Fall 2008 1. The basis for the transfer of genetic information is the base pairing that occurs between DA nucleotides. A diagram portraying this base pairing is drawn
Department Curriculum and Assessment Outline
Timing Department: Science Year Group: 0 Teaching, learning and assessment during the course: Chemistry (Combined) C/C States of matter/methods of Separating and purifying substances C3 Atomic structure
The Grignard Reaction: Synthesis of 1,2-diphenyl-1,2-propanediol via a Diastereoselective Reaction.
EXPERIMENT 2 The Grignard Reaction: Synthesis of 1,2-diphenyl-1,2-propanediol via a Diastereoselective Reaction. Relevant sections in the text: Fox & Whitesell, 3 rd Ed. pg. 400-404, 615-618 General Concepts
Organic Chemistry II (CHE ) Final Examination April 30, Name (Print legibly):
rganic hemistry II (E 232-002) Final Examination April 30, 2007 Name (Print legibly): (last) (first) PLEASE observe the following: You are allowed to have scratch paper (provided by me), and a simple model
Chemistry 250B Final Exam Answer Key December 19, 2008
Name: NSWER KEY 1 hemistry 250 Final Exam nswer Key ecember 19, 2008 Show non-zero formal charges on all atoms for all structures. There are 11 pages. 1. (42 pts) omplete the following reactions. Show
Thin Layer Chromatography
Experiment: Thin Layer Chromatography Chromatography is a technique widely used by organic chemists to separate and identify components in a mixture. There are many types of chromatography, but all involve
Epichlorohydrin coupling reactions with wood
Wood Science and Technology 28 (1994) 371-376 Springer-Verlag 1994 Epichlorohydrin coupling reactions with wood Part 1. Reaction with biologicallyactive alcohols R. M. Rowell, G. C. Chen Summary Properties
Experiment 8: Chlorination of 1-Chlorobutane
1 Experiment 8: Chlorination of 1-Chlorobutane Alkanes contain only nonpolar carbon-hydrogen and carbon-carbon single bonds, which makes them unreactive toward most acidic and basic reagents. They can,
Fall Organic Chemistry Experiment #6 Fractional Crystallization (Resolution of Enantiomers)
Suggested Reading: Fall Organic Chemistry Experiment #6 Fractional Crystallization (Resolution of Enantiomers) Jones Section 4.9 Physical Properties of Diastereomers: Optical Resolution pages 176-178 Introduction
Organic Chemistry I Lesson Objectives, Lesson Problems, Course Outline Spring 2008
Organic Chemistry I Lesson Objectives, Lesson Problems, Course Outline Spring 2008 Lesson Date Assignment Lesson Objective Description Lesson Problems 4 14-Jan Chapter 1 Quiz Describe how bond polarity
Experiment 11: Dehydration of Cyclohexanol
Experiment 11: Dehydration of yclohexanol INTRODUTION In this experiment, cyclohexanol is dehydrated by aqueous sulfuric acid to produce cyclohexene as the sole product [equation (1)], and no rearrangement
Babak Karimi* and Majid Vafaeezadeh
Electronic upplementary Material (EI) for RC Advances This journal is The Royal ociety of Chemistry 2013 BA-15 functionalized sulfonic acid confined hydrophobic and acidic ionic liquid: a highly efficient
Nucleophilic displacement - Formation of an ether by an S N 2 reaction The Williamson- Ether Synthesis
Nucleophilic displacement - Formation of an ether by an S N 2 reaction The Williamson- Ether Synthesis Bond formation by use of an S N 2 reaction is very important for organic and biological synthesis.
Exercise 6 - Structure - Activity Relationships: Acidity and pk a Values
107 Exercise 6 Structure Activity Relationships: Acidity and pk a Values For each pair of compounds, write the pertinent reaction and predict which compound of the pair should be the strongest acid. Explain