Green-Nano-Chemistry US EPA, USA  Dr VivekChemistry




  • Name:

    Dr Vivek

  • Institution:

    US EPA, USA

  • Position:

    Scientist

  • Location:

    CINCINNATI 

  • Field of Science:

    Chemistry

  • Website / Blog:

    www.greenorganicchem.com

  • Online Status: status







    		•

    • About my Work: 


      1. Nanomaterials- Synthesis and their applications in catalysis.

      2. Multi-component synthesis of bioactive heterocyclic compounds.

      3. Facile and rapid access to small drug molecules using greener pathways.

      4.Microwave assisted green organic chemistry.

    • Projects: 


      Nanomaterials- Synthesis and their applications in catalysis.
      Green organic chemistry

    • Vita / Publications: 


      PUBLICATIONS
      Reviews

      1. Aqueous Microwave Chemistry: A Clean and Green Synthetic Tool for Rapid Drug Discovery.
      Vivek Polshettiwar and R. S. Varma,
      Chem. Soc. Rev. 2008, 37, 1546-1557.
      2. Microwave-Assisted Organic Synthesis and Transformations using Benign Reaction Media. Vivek Polshettiwar and R. S. Varma,
      Acc. Chem. Res. 2008, 41, 629-639.
      3. Greener and expeditious synthesis of bio-active heterocycles using microwave irradiation. Vivek Polshettiwar and R. S. Varma,
      Pure App. Chem. 2008, 80, 777-790.
      4. Greener and sustainable pharmaceutical active heterocyclic synthesis.
      Vivek Polshettiwar and R. S. Varma,
      Curr. Opin. Drug Disc. 2007, 10, 723-737.
      5. Silica supported Pd-Catalyst for Heck Coupling Reaction.
      Vivek Polshettiwar, Arpad Molnar.
      Tetrahedron 2007, 63, 6949.
      6. Recent advances in thionating reagents for synthesis of organosulfur compounds.
      Vivek Polshettiwar and M. P. Kaushik
      J. Sulfur Chem. 2006, 27, 353.
      7. Microwave-Assisted Chemistry: A Rapid and Sustainable Route for Synthesis of Organics and Nanomaterials.
      Vivek Polshettiwar, M. N. Nadaguada and R. S. Varma,
      Aus. J. Chem. 2008, in press.


      Book Chapters

      8. Alternative Heating for Green Synthesis in Water (Photo, Ultrasound, and Microwave).
      Vivek Polshettiwar and R. S. Varma,
      Handbook of Green Chemistry, Ed. Paul Anastas & C. –J. Li, 2008, WILEY-VCH, Boschstrasse 12, D- 69469 Weinheim, Germany.
      9. Environmentally Benign Chemical Synthesis via Mechanochemical Mixing and Microwave Irradiation.
      Vivek Polshettiwar and R. S. Varma,
      Eco-Friendly Processes and Procedures for the Synthesis of Fine Chemicals, Ed. Roberto Ballini; 2008, Royal Society of Chemistry, Thomas Graham House, Science Park, Cambridge, CB4 0WF, UK


      Research Articles
      10. Olefin Ring Closing Metathesis and Hydrosilylation Reaction in Aqueous Medium by Grubbs Second Generation Ruthenium Catalyst.
      Vivek Polshettiwar and R. S. Varma,
      J. Org. Chem. 2008, 73, 7417-7419.
      11. Tandem bis-aldol reaction of ketones: a facile one pot synthesis of 1,3-dioxanes in aqueous medium.
      Vivek Polshettiwar and R. S. Varma,
      J. Org. Chem.. 2007, 72, 7420-7422.
      12. Synthesis of Single-Crystal Micro-Pine Structured Nano-Ferrites and Their Application in Catalysis.
      Vivek Polshettiwar and R. S. Varma,
      Chem. Commun. 2008, in press.
      13. Nanoparticle-supported and magnetically recoverable ruthenium hydroxide catalyst: Effcient hydration of nitriles to amides in aqueous medium.
      Vivek Polshettiwar and R. S. Varma,
      J. Org. Chem. 2008, under revision.
      14. Nanoparticle-supported and magnetically recoverable palladium (Pd) catalyst: A selective and sustainable oxidation protocol with high turnover number.
      Vivek Polshettiwar and R. S. Varma,
      Org. Bio. Chem. 2008, under revision.
      15. Nanoparticle-supported and magnetically recoverable Nickel catalyst: A robust and economic hydrogenation and transfer hydrogenation protocol.
      Vivek Polshettiwar, Babita Baruwati, and R. S. Varma,
      Green Chem. 2008, in press.
      16. Magnetically Recoverable Supported Ruthenium Catalyst for Hydrogenation of Alkynes and Transfer Hydrogenation of Carbonyl Compounds
      Babita Baruwati, Vivek Polshettiwar and R. S. Varma,
      Adv. Syn. Catal. 2008, submitted.
      17. Ring-fused aminals: Catalyst and solvent-free microwave-assisted -amination of nitrogen heterocycles
      Vivek Polshettiwar and R. S. Varma,
      Tetrahedron Lett. 2008, in press.
      18. Self-assembly of palladium (Pd) nanoparticles: Synthesis of Pd nanobelts, nanoplates and nanotrees using vitamin B1 and their application in carbon-carbon coupling reactions
      M. N. Nadaguada, Vivek Polshettiwar, and R. S. Varma,
      J. Mat. Chem. 2008, submitted.
      19. Pd-N-heterocyclic carbene (NHC) organic silica: synthesis and application in carbon-carbon coupling reactions. Vivek Polshettiwar and R. S. Varma,
      Tetrahedron 2008, 64, 4637-4643.
      20. Greener and rapid access to bio-active heterocycles: room temperature synthesis of pyrazoles and diazepines in aqueous medium.
      Vivek Polshettiwar and R. S. Varma,
      Tetrahedron Lett. 2008, 49, 397-400.
      21. Greener and rapid access to bio-active heterocycles: one-pot solvent-free synthesis of 1,3,4-oxadiazoles and 1,3,4-thiadiazoles
      Vivek Polshettiwar and R. S. Varma,
      Tetrahedron Lett. 2008, 49, 879-883.
      22. Nafion®-catalyzed microwave-assisted Ritter reaction: An atom-economic solvent-free synthesis of amides
      Vivek Polshettiwar and R. S. Varma,
      Tetrahedron Lett. 2008, 49, 2661-2664.
      23. Tandem bis-aza-Michael addition reaction of amines in aqueous medium promoted by polystyrenesulfonic acid.
      Vivek Polshettiwar and R. S. Varma,
      Tetrahedron Lett. 2007, 48, 8735-8738.
      24. Polystyrene sulfonic acid catalyzed greener synthesis of hydrazones in aqueous medium using microwaves.
      Vivek Polshettiwar and R. S. Varma,
      Tetrahedron Lett. 2007, 48, 5649-5652.
      25. Biginelli reaction in aqueous medium: A greener and sustainable approach to substituted 3,4- dihydropyrimidin-2(1H)-ones.
      Vivek Polshettiwar and R. S. Varma,
      Tetrahedron Lett. 2007, 48, 7343-7346.
      26. Expeditious oxidation of alcohols to carbonyl compounds using iron(III) nitrate.
      V. V. Namboodiri, Vivek Polshettiwar and R. S. Varma,
      Tetrahedron Lett. 2007, 48, 8839-8842.
      27. An efficient and chemoselective Cbz-protection of amines using silica–sulfuric acid at room temperature.
      Manoj B. Gawande, Vivek Polshettiwar R. S. Varma, and Radha V. Jayaram Tetrahedron Lett. 2007, 48, 8170-8173.
      28. Palladium containing nano-structured silica functionalized with pyridine sites: a versatile heterogeneous catalyst for Heck, Sonogashira and cyanation reactions.
      Vivek Polshettiwar, Peter Hesemann, Joel J. E. Moreau
      Tetrahedron 2007, 63, 6784.
      29. Silica hybrid material containing Pd-NHC complex as heterogeneous catalyst for Mizoroki-Heck reactions
      Vivek Polshettiwar, Peter Hesemann, Joel J. E. Moreau Tetrahedron Lett. 2007, 48, 5363.
      30. Highly ordered functional organosilica by template directed hydrolysis-polycondensation using chiral camphorsulfonamide precursors: Synthesis and application of new task specific ionic liquid.
      Benoit Gadenne, Peter Hesemann, Vivek Polshettiwar and Joel Moreau,
      Eur. J. Inorg. Chem. 2006, 3697.
      31. Alumina encapsulated phosphorus pentasulfide (P4S10/Al2O3) mediated efficient thionation of long chain amides
      Vivek Polshettiwar, and M. P. Kaushik
      Tetrahedron Lett. 2006, 47, 2315
      32. Pd(OAc)2/Silica in Ionic Liquid-A Green Heck Catalyst
      Vivek Polshettiwar
      Res. J. Chem. Environ. 2006, 10, 91.
      33. A new, efficient and simple method for the thionation of ketones to thioketones using P4S10/Al2O3.
      Vivek Polshettiwar and M. P. Kaushik
      Tetrahedron Lett. 2004, 45, 6255.
      34. A new reagent for the efficient synthesis of disulfides from alkyl halides. Vivek Polshettiwar, Manisha Nivsarkar, Jyotiranjan Acharya and M. P. Kaushik
      Tetrahedron Lett. 2003, 44, 887.
      35. Microwave enhanced chemistry of CsF-Celite: an efficient catalyst for the synthesis of esters, ethers and their thio-analogues.
      Vivek Polshettiwar and M. P. Kaushik
      Catalysis Commun. 2005, 6,191.
      36. CsF-Celite catalyzed regio- and chemoselective SN2 type ring opening of epoxides with thiol. Vivek Polshettiwar and M. P. Kaushik Catalysis Commun. 2004, 5, 515.
      37. Phosphorus Pentasulfide (P4S10)
      Vivek Polshettiwar
      Synlett. 2004, 2245.
      38. Thionation of carbonyl compounds by phosphorus pentasulfide and hexamethyldisiloxane under microwave irradiations.
      Vivek Polshettiwar, Manisha Nivsarkar, Deepak Pardashani and M. P. Kaushik J. Chem. Res. 2004, 474.
      39. N-Octyl quinolinium tribromide: a quinoline based ionic liquid as a new brominating agent for bromination of phenols, aromatic amines, alkenes and alkynes.
      Vivek Polshettiwar and M. P. Kaushik
      Ind. J. Chem. B 2006, 45, 2542.
      40. Tighter ion pair effect and Scale-Up study in microwaves assisted aminolysis of enolizable esters using potassium tert-butoxide (t-BuOK). Vivek Polshettiwar and M. P. Kaushik
      Ind. J. Chem. B, 2005, 44, 773.

    • Grants and Awards: 


      1. Eak-Lavya Scholarship
      From 1999- 2001 in M.Sc by Maharashtra Government
      2. DRDO Research Fellowship
      From 2001-2005 for PhD by Government of India
      3. Member of American Chemical Society
      4. Member of Society of Chemistry and Industry
      5. ORISE Fellowship (2007-2010)By US EPA

    • About my Institution: 


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    • Additional Information: 


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