RAMA KRISHNA PEDDINTI, Ph.D.
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1 RAMA KRISHNA PEDDINTI, Ph.D. Associate Professor Department of Chemistry Indian Institute of Technology Roorkee Roorkee , Uttarakhand, INDIA Tel: (0) RESEARCH AREAS Asymmetric Synthesis Domino Reactions Arene Functionalizations Green Protocols in Organic Synthesis Carbohydrate Research Antibacterial Activity Studies RESEARCH HIGHLIGHTS The group has developed various asymmetric organocatalysts from naturally available proline and derivatives of camphor-10-sulfonic acid and glucosamines. The catalytic activity of these organocatalysts has been investigated in various asymmetric transformations. Novel sugar derivatives were synthesized. Developed green protocols for the synthesis of an array of heterocycles under solvent-free and catalyst-free conditions. Synthesized several vesicular acetylcholine transporter inhibitors. Highly unstable o-benzoquinone monoimines were chemically generated for the synthesis of hitherto unknown 1,4-benzoxazine derivatives. A plethora of halogenated bicyclo[2.2.2]octenones were synthesized. SELECTED PUBLICATIONS Recent papers 1. G. Choudhary, R. K. Peddinti An efficient solvent-tuning approach for the rapid synthesis of thiazolidinone derivatives and the selective synthesis of 2-amino-4H-1,3-thiazin-4-one and dimethyl 3,3'-thiodiacrylates. Tetrahedron Lett. 2012, (In press). 1
2 2. S. R. Surasani, S. K. R. Parumala, R. K. Peddinti Diels-Alder reactions of 4-halo masked o-benzoquinones. Experimental and theoretical investigations. Org. Biomol. Chem. 2012, (In press). 3. J. Agarwal, R. K. Peddinti Synthesis and characterization of monosaccharide derivatives and application of sugar-based prolinamides in asymmetric synthesis. Eur. J. Org. Chem. 2012, (In press). 4. N. Bodipati, R. K. Peddinti Hypervalent iodine mediated synthesis of carbamate protected p-quinone monoimine ketals and p-benzoquinone monoketals. Org. Biomol. Chem. 2012, 10, N. Bodipati, R. K. Peddinti Chemical generation of o-quinone monoimines: Rapid construction of novel 1,4- benzoxazine derivatives. Org. Biomol. Chem. 2012, 10, (One of the top ten most accessed papers) 6. G. Choudhary, R. K. Peddinti Introduction of a clean and promising protocol for the synthesis of Michael adducts and 1,4-benzoheterocycles: An emerging innovation. Green Chem. 2011, 13, S. R. Surasani, R. K. Peddinti Diels-Alder reactions of halogenated masked o-benzoquinones. Synthesis of halogen-substituted bicyclo[2.2.2]octenones. Tetrahedron Lett. 2011, 52, J. Agarwal, R. K. Peddinti Glucosamine-based primary amines as novel organocatalysts for the asymmetric aldol reaction. J. Org. Chem. 2011, 76, G. Choudhary, R. K. Peddinti Towards absolute green protocol: An expeditious, highly efficient, catalyst-free and solvent-free synthesis of nitroamines and nitrosulfides by Michael addition. Green Chem. 2011, 13, J. Agarwal, R. K. Peddinti Study of asymmetric Michael addition catalysed by sugar-based prolinamides in solvent free conditions. Tetrahedron Lett. 2011, 52, R. Rani, R. K. Peddinti Michael reaction of ketones and -nitrostyrenes catalyzed by camphor-10- sulfonamide-based prolinamide Tetrahedron Asymm. 2010, 21, J. Agarwal, R. K. Peddinti Sugar-based novel organocatalysts: Enantioselective aldol reactions of cycloalkanones with aromatic aldehydes. Tetrahedron Asymm. 2010, 21, R. Rani, R. K. Peddinti 2
3 Camphor-based novel organocatalysts: Enantioselective aldol reactions of cycloalkanones with aromatic aldehydes. Tetrahedron Asymm. 2010, 21, J. Agarwal, A. Duley, R. Rani, R. K. Peddinti Aminolysis of epoxides using iridium trichloride as an efficient catalyst. Synthesis 2009, S. R. Surasani, V. S. Rajora, N. Bodipati, R. K. Peddinti Diels-Alder reactions of halogenated masked o-benzoquinones. Synthesis of halogen-substituted bicyclo[2.2.2]octenones. Tetrahedron Lett. 2009, 50, M. C. Singh, R. K. Peddinti Antimony(III) chloride-catalyzed ring opening of epoxides with anilines. Tetrahedron Lett. 2007, 48, C.-C. Liao, R. K. Peddinti Chapter 4 (1,2-Naphthoquinones including 1,5-, 1,7-, 2,3-, 2,6-naphthoquinones) in Science of Synthesis: Houben-Weyl Methods of Molecular Transformations, Volume 28 (Quinones and Heteroatom Analogs), PROJECTS COMPLETED 1. Asymmetric Organocatalysis with L-Proline and its Derivatives. Nov Feb. 2009, DST. 2. Novel,-Diarylprolinol-derived Chiral Ligands for Catalytic Asymmetric Synthesis. CSIR, Apr Sept Dearomatization of 3-Methoxy-2-naphthol: Synthesis of Benzannulated Bicyclo[2.2.2]octenone Frameworks. MHRD, Apr March ONGOING PROJECTS 1. Novel Methodologies for the Generation of o-benzoquinone Monoimides: Synthesis of 1,4-Benzoxazine Derivatives. CSIR, Oct 2009 Mar Microwave Heating Technology: A Green Chemistry Approach for Functionalization of Arenes. MHRD, May 2010 Apr Domino Reactions and Asymmetric Organocatalytic Reactions. DST, May 2012 Apr
4 GROUP MEMBERS (Ph.D.) 1. Rashmi Rani ( ) 2. Garima ( ) 3. Jyoti Agarwal ( ) 4. Seshi Reddy Surasani ( ) 5. Naganjaneyulu Bodipati ( ) 6. Ram Tilak Naganaboina (2009-) 7. Jyoti Singh Tomar (2010-) 8. Santosh Kr. Reddy Parumala (2011-) 9. Arun Sharma (2011-) 10. Ujjawal Kumar Bhagat (2011-) 11. Shivangi Sharma (2011-) 12. Pallavi Singh (2012-) PROJECT FELLOWS 1. S. R. Palla (Antibacterial Activity Studies) 2. Balakrishna Aegurula (Asymmetric Synthesis) M.Tech. 1. Ankita Singh (2011-) PREVIOUS GROUP MEMBERS (M.Sc. & M.Tech.) Year of Year of M.Sc. M.Tech. Graduation Graduation Anjali Jha 2005 Virendra Singh Rajora 2006 Sudarshana Mukherjee 2005 Mahesh Chander Singh 2007 Sujata Kashyap 2005 Deepika Kanwar 2008 Garima Singh 2006 Bhaskara Rao Pasumarti 2010 Jissy A. K Monika Das 2011 Anju Duley 2007 Shankha Pattanayak 2007 Dipankar Sahoo 2008 Farhana Shehla 2008 Sunil Kumar Bonagani 2009 Nithish Kumar Verma 2012 Oishika Panda
5 RESEARCH FACILITIES The research group is well equipped with basic facilities to perform reactions for organic synthesis/ asymmetric synthesis. Laboratory has facilities to carry out reactions under inert atmosphere and at low temperatures up to 90 o C. It also procured HPLC instrument along with chiral columns. In addition, instruments such as FT-IR, UV-Vis, GC, GC-MS, HRMS, CHN analyzer, etc., are available in the Department and 500 MHz NMR and XRD instruments are available in the Institute Instrumentation Centre. FURTHER DETAILS OF THE GROUP For further details of the group, visit the following sites metric_synthesis_lab.html 5
RAMA KRISHNA PEDDINTI, Ph.D.
RAMA KRISHNA PEDDINTI, Ph.D. Associate Professor Department of Chemistry Indian Institute of Technology Roorkee Roorkee-247667, Uttarakhand, INDIA Tel: (0)1332-285438 E-mail: rkpedfcy@iitr.ac.in, ramakpeddinti@gmail.com
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