Profile. Broad Research Interests: Organocatalysis, Sustainable Chemistry, Synthetic Methodologies
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1 Profile Srinivasan Easwar, Ph. D. Assistant Professor Department of Chemistry School of Chemical Sciences and Pharmacy Central University of Rajasthan Bandarsindri, Distt. Ajmer Rajasthan Academic Background: M.Sc. (2000): Chemistry, from the Department of Chemistry, University of Pune Ph.D. (2006): National Chemical Laboratory (NCL), Pune Post-Doctoral Fellowship ( ): University of Bologna, Italy Broad Research Interests: Organocatalysis, Sustainable Chemistry, Synthetic Methodologies Development of proline-based organocatalysts for asymmetric C-C bond forming transformations. Bifunctional organocatalysis enantioselective cascade cyclisations for the construction of fused and bridged ring systems. Sustainable synthetic methodologies related to Baylis-Hillman reaction, Michael addition, etc. Present Research Work A Urea-tagged proline as a synergistic catalytic model for the direct asymmetric aldol reaction J. Org. Chem. 2018, 83, xxxx (in press) An Imidazolium-tagged proline to explore effect of ion-tag proximity to the reaction site Eur. J. Org. Chem. 2017, 1788
2 Other recently developed proline derived catalysts All the above (Cat. 3 in particular) were used successfully in the asymmetric aldol reaction under aqueous conditions with excellent yields and stereoselectivity. Dipeptide based catalysts (work on the Pro-Arg dipeptide catalyst is currently in progress) Methodologies based on harnessing the synthetic potential of methyl vinyl ketone Proline mediated Baylis-Hillman reaction and nucleophilic acitivation of carboxylic acids Synlett 2017, 28, 128 Synlett 2017, 28, 1477 Arginine mediated aldol addition of methyl vinyl ketone to isatins ChemistrySelect 2017, 2, 11666
3 An Expedient Access to Chromanols via an Arginine-mediated Cascade Cyclisation in Water Tetrahedron Lett. 2018, 59, 2356 RESEARCH PROJECTS 1. Indo-Russian Project in collaboration with Prof. Sergei Zlotin, Zelinsky Institute of Organic Chemistry, Moscow, Russia; jointly sponsored by DST, India and RFBR, Russia - Completed Title: Synthesis and studies on catalytic performance of novel ion-tagged recyclable chiral organocatalysts generated from suitable dipeptides 2. Studies towards the total synthesis of protoberberine based natural products (UGC) Completed 3. Design of Novel Bifunctional Amine-Urea/Thiourea Catalysts for Asymmetric C-C Bond Forming Applications (CSIR) In Progress Teaching 2011 (Aug) Present Assistant Professor Department of Chemistry School of Chemical Sciences & Pharmacy Central University of Rajasthan Bandarsindri, Distt. Ajmer, Rajasthan Courses Taught: Pericyclic reactions & Photochemistry Stereochemistry and Reaction Mechanism Asymmetric Synthesis Natural Products Chemistry Chemistry of Heterocycles Physical Organic Chemistry Applications of Organometallic Reagents Organic Chemistry Laboratory for B.Sc., M.Sc. & pre-ph.d. coursework Publications Probing the Synergistic Catalytic Model: A Rationally Designed Urea-Tagged Proline Catalyst for the Direct Asymmetric Aldol Reaction M. Bhati, K. Kumari and S. Easwar, J. Org. Chem. 2018, 83, xxxx (in press) An expedient access to chromanols via an arginine-mediated cascade cyclisation in water A. K. Jha, H. Inani and S. Easwar, Tetrahedron Lett. 2018, 59, An Arginine-Mediated Protocol for the Aldol Addition of Methyl Vinyl Ketone in Water H. Inani, A. K. Jha and S. Easwar, ChemistrySelect 2017, 2, A Nucleophilic Activation of Carboxylic Acids by Proline: Oxa-Michael Addition to Methyl Vinyl Ketone under Solvent-free Conditions A. K. Jha, H. Inani and S. Easwar, Synlett, 2017, 28,
4 Exploring "Through-Bond" Proximity between the Ion-Tag and Reaction Site of an Imidazolium- Proline Catalyst for the Direct Asymmetric Aldol Reaction M. Bhati, S. Upadhyay and S. Easwar, Eur. J. Org. Chem. 2017, Proline-Mediated Baylis Hillman Reaction of Methyl Vinyl Ketone without a Co-catalyst under Solvent-Free Conditions H. Inani, A. K. Jha and S. Easwar, Synlett 2017, 28, Ionic liquid supported 4-HO-Pro-Val derived organocatalysts for asymmetric aldol reactions in the presence of water S. Kucherenko, V. V. Perepelkin, G. M. Zhdankina, G. V. Kryshtal, Easwar Srinivasan, H. Inani and S. G. Zlotin, Mendeleev Communications 2016, 26, Synthesis of the reported protoberberine gusanlung D P. B. Wakchaure, S. Easwar and N. P. Argade, Synthesis 2009, The ion tag strategy as a route to highly efficient organocatalysts for the direct asymmetric aldol reaction M. Lombardo, S. Easwar, F. Pasi and C. Trombini, Adv. Synth. Catal. 2009, 351, Facile air-oxidation of N-homopiperonyl-5,6-dimethoxy-homophthalimide: simple and efficient access to nuevamine P. B. Wakchaure, S. Easwar, V. G. Puranik and N. P. Argade, Tetrahedron, 2008, 64, A modular approach to catalyst hydrophobicity for an asymmetric aldol reaction in a biphasic aqueous environment M. Lombardo, S. Easwar, A. De Marco, F. Pasi and C. Trombini, Org. Biomol. Chem. 2008, Direct asymmetric aldol reaction catalyzed by an imidazolium-tagged trans-4-hydroxy-l-proline under aqueous biphasic conditions M. Lombardo, F. Pasi, S. Easwar and C. Trombini, Synlett 2008, (This communication was highlighted in Synfacts 2008, ; contributors: Benjamin List & Frank Lay) Protonated arginine and lysine as catalysts for the direct asymmetric aldol reaction in ionic liquids M. Lombardo, S. Easwar, F. Pasi, C. Trombini and D. D. Dhavale, Tetrahedron 2008, 64, An improved protocol for the direct asymmetric aldol reaction in ionic liquids, catalysed by onium ion-tagged prolines M. Lombardo, F. Pasi, S. Easwar and C. Trombini, Adv. Synth. Catal. 2007, 349, An efficient synthesis and an enzymatic resolution of new secondary metabolites from Aspergillus wentii: Aspergillus acids A-D S. Easwar and N. P. Argade, Synthesis 2006, Amano PS-catalyzed enantioselective acylation of (±)-a-methyl-1,3-benzodioxole-5-ethanol: an efficient resolution of chiral intermediates of the remarkable antiepileptic drug candidate, (-)- talampanel S. Easwar and N. P. Argade, Tetrahedron: Asymmetry 2003, 14, Enantioselective enzymatic approach to (+)- and (-)-2-acetoxy/hydroxycyclopentanones S. Easwar, S. B. Desai, N. P. Argade and K. N. Ganesh, Tetrahedron: Asymmetry 2002, 13, Amano PS catalysed methanolysis of maleimides: an efficient synthesis of methyl maleanilates S. Easwar and N. P. Argade, Indian J. Chem. 2002, 41B,
5 Invited Talks and Conference s International Conference on Advancing Green Chemistry: Building a Sustainable Tomorrow, Delhi University, Oct 2017: Oral National Conference on Chirality, M. S. University of Baroda, Nov 2017: Invited Lecture Contemporary Facets in Organic Synthesis, Dec 2017: Oral Pre-International Conference on Organic Synthesis (Pre-ICOS-2016), IISER Bhopal, Dec 2016: Poster National Symposium on recent Trends in Eco-friendly Chemistry (RTEC-2016), Central University of Haryana, Sep 2016: Invited Talk National Conference on Organic Chemistry in Sustainable Development (OCSD-2016), BITS, Pilani, Aug 2016: Invited Talk International Conference on Chemistry for Renewable Energy (ICCRE-2016), Trichy, Feb 2016: Poster National Seminar on Recent Trends in Chemical Research (NSRTCR-2016), JNV University, Jodhpur, Feb 2016: Invited Lecture National Symposium on Emerging Trends in Chemical Sciences (ETACS-2016), Central University of Rajasthan, Mar 2016: Poster National Conference on Recent Advances in Chemical Sciences (RAICS-2015), MNIT Jaipur, Aug 2015: Oral CRSI-National Symposium in Chemistry, NCL & IISER Pune, India 2015: Poster International Conference on New Emerging Trends in Chemistry, IIS University Jaipur, India, 2013: Oral Indian Institute of Technology Ropar, India, 2013: Invited Talk Indo-Korean meeting on Nanomaterials and Healthcare, Central University of Rajasthan, India, 2012: Oral Chemical Research Society of India, National Symposium in Chemistry, NCL Pune, Feb 2015: Poster Chemical Research Society of India, National Symposium in Chemistry, 2004: Poster
Easwar Srinivasan, Ph. D.
Easwar Srinivasan, Ph. D. Assistant Professor School of Chemical Sciences and Pharmacy Bandarsindri, Distt. Ajmer Rajasthan 305801 e-mail: easwar.srinivasan@curaj.ac.in Phone (Off.): +91-1463-238730 Research
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