Research Group Publications
 
  • Chavan S. P.; Lasonkar P.B., "pAaSimple Synthesis of the Novel Antihistaminic Drug Olopatadine Hydrochloride", Synthesis., 45, 3399 - 3403 (2013).
  • Chavan S. P.; Lasonkar P.B.; Chavan P. N., "A novel and enantioselective synthesis of D-(+)-biotin via a Sharpless asymmetric dihydroxylation strategy", Tetrahedron Asymmetry., 24, 1473 - 1479 (2013).
  • Chavan S. P.; Garai S. ; Dey C.; Gonnade R. G., "A highly stereocontrolled asymmetric total synthesis of epimer of (+)-7-deoxypancratistatin", Tetrahedron Letters., 54, 5562 - 5566 (2013).
  • Chavan S. P.; Lasonkar P. B., "One-pot migration-formylation of benzyl aryl ethers under Duff reaction condition", Tetrahedron Letters., 54, 4789 - 4792 (2013).
  • Chavan S. P.; Harale K. R.; Pawar K. P., "A short synthesis of (2S, 3S)-3-hydroxypipecolic acid", Tetrahedron Letters., 54, 4851 - 4853 (2013).
  • Chavan S. P.; Garai S. ; Pawar K. P., "Asymmetric total synthesis of (-)-venlafaxine using an organocatalyst", Tetrahedron Letters., 54, 2137 - 2139 (2013).
  • Chavan S. P.; Garai S.; Dutta A. K.; Pal S., "Friedel–Crafts Acylation Reactions Using Esters", Eu. J. Org. Chem., 2012, 6841 - 6845 (2012), DOI:10.1002/ejoc.201201181.
  • Chavan S. P.; Lasonkar P. B, "A chiral pool based approach to antipodes of alpha-cuparenone.", Tetrahedron Asymmetry., 23, 1496 - 1500 (2012).
  • Chavan S. P.; Khatod H. S., "Enantioselective synthesis of the essential oil and pheromonal component ar-himachalene by a chiral pool and chirality induction approach", Tetrahedron Asymmetry., 23, 1410 - 1415 (2012).
  • Chavan S. P.; Garai S. ; Kalkote U. R, "A highly diastereoselective total synthesis of (±)-Heritonin and (±)-Heritol", Tetrahedron., 68, 8509 - 8514 (2012).
  • Chavan S. P.; Harale K. R ., "A very practical and selective method for PMB protection of alcohols", Tetrahedron Letters., 53, 4683 - 4686 (2012).
  • Chavan S. P.; Harale K. R.; Puranik V. G.; Gawade R. L., "Formal synthesis of (-)-stemoamide using a useful epimerization at C-8", Tetrahedron Letters., 53, 2647 - 2650 (2012).
  • Chavan S. P; Harale K. R.; Dumare N. B.; Kalkote U. R., "convenient formal synthesis of (2S,3S)-3-hydroxy pipecolic acid", Tetrahedron Asymmetry., 22, 587 - 590 (2011).
  • Panchgalle S. P.; Kunte S. S ; Chavan S. P. ; Kalkote U. R, "Exploration of L-proline catalyzed ?-aminoxylation of aldehyde towards (S)-guaifenesin related drug molecules", Syn. Commun., 41, 1938 - 1946 (2011).
  • Chavan S. P; Dumare N. B.; Harale K. R.; Kalkote U. R., "Asymmetric total synthesis of (2S,3S)-3-hydroxypipecolic acid", Tetrahedron Letters., 52, 404 - 406 (2011).
  • Panchgalle S. P.; Bidwai H. B. ; Chavan S. P.; Kalkote U. R., "Organocatalytic asymmetric synthesis of (-)-delta-coniceine based on sequential proline-catalyzed asymmetric alpha-amination-HWE olefination", Tetrahedron Asymmetry., 21, 2399 - 2401 (2010).
  • Chavan S. P; Dhawane A. N.; Kalkote U. R. , "Formal synthesis of (±)-camptothecin via tricyclic lactone as key synthon", Tetrahedron Letters., 51, 3099 - 3101 (2010).
  • Chavan S. P; Pathak A. B.; Pandey A.; Kalkote U. R., "Short and efficient synthesis of rubrolide E", Syn. Commun., 38, 3143 - 3149 (2008).
  • Chavan S. P; Pathak A. B.; Khobragade D. A. ; Thakkar M. T.; Kalkote U. R., "Practical Synthesis of (±)-Venlafaxine", Syn. Commun., 37, 3901 - 3906 (2007).
  • Chavan S. P; Dhawane A. N.; Kalkote U. R, "An efficient and practical total synthesis of ?-cuparenone", Synthesis., 24, 3827 - 3830 (2007).
  • Chavan S. P; Khobragade D. A.; Pathak A. B. And Kalkote U. R., "Convenient Formal Synthesis of (+)-Paroxetine", Syn. Commun., 37, 3143 - 3149 (2007).
  • Chavan S. P; Pathak A. B.; Kalkote U. R. And , "A practical formal synthesis of camptothecin", Tetrahedron Letters., 48, 6561 - 6563 (2007).
  • Chavan S. P; Pathak A. B.; Dhawane A. N.; Kalkote U. R., "Total synthesis of Pulchellalactam via an RCM strategy ", Syn. Commun., 37, 1503 - 1510 (2007).
  • Chavan S. P; Dhawane A. N.; Kalkote U. R. And , "A facile total synthesis of (±)-?-cuparenone employing diallylation and RCM as key steps", Tetrahedron Letters., 48, 965 - 966 (2007).
  • Chavan S. P; Thakkar M.; Jogdand G. F.; Kalkote U. R. And , "An enantiospecific synthesis of (+)-isoparvifolinone and (-)-parvifoline ", Tetrahedron Letters., 48, 535 - 537 (2007).
  • Chavan S. P; Thakkar M.; Kalkote U. R. And , "The first enantiospecific synthesis of (-)-heritol: absolute configuration determination", Tetrahedron Letters., 48, 643 - 646 (2007).
  • Chavan S. P; Sharma P.; Sivappa R..; Kalkote U. R., "A ring closing metathesis approach to the indole alkaloid mitralactonine ", Tetrahedron Letters., 47, 9301 - 9303 (2006).
  • Chavan S. P; Thakkar M.; Jogdand G. F.; Kalkote U. R., "First Enantiospecific Synthesis of (?)-Parvifoline and (?)-Curcuquinone", J. Org. Chem., 71, 8986 - 8988 (2006), DOI:10.1021/jo061730d.
  • Chavan S. P ; Thakkar M.; Kharul R. K.; Pathak A. B.; Bhosekar G. V.; Bhadbhade M.; , "First enantiospecific synthesis of (+)-?-herbertenol ", Tetrahedron., 61, 3873 - 3879 (2005).
  • Chavan S. P And ; Cherukupally P., "Stereoselective synthesis of (?)-microcarpalide", Tetrahedron Letters., 46, 1139 - 1941 (2005).
  • Chavan And S P; Chittiboyina A. G.; Ravindranathan T.; Kamat S. K.; Kalkote U. R., "Diastereoselective Amidoalkylation of (3S,7aR)-6-Benzyl-7-hydroxy-3-phenyltetra- hydro-5H-imidazo[1,5-c][1,3]thiazol-5-one :? A Short and Highly Efficient Synthesis of (+)-Biotin", J. Org. Chem., 70, 1901 - 1903 (2005), DOI:10.1021/jo0488107.
  • Panchgalle S. P. ; Kalkote U. R.; Niphadkar P. S.; Joshi P. N. ; Chavan S. P. ; Chaphekar G. M., "Sn-? molecular sieve catalysed Baeyer–Villiger oxidation in ionic liquid at room temperature", Green Chemistry., 6, 308 - 309 (2004), DOI:10.1039/B406077F.
  • Chavan S. P.; Sharma P.; Sivappa R.; Bhadbhade M. M.; Gonnade R. G. ; Kalkote U. R., "Enantioselective Synthesis of L-CCG-I", J. Org. Chem., 68, 6817 - 6819 (2003), DOI:10.1021/jo0345188.
  • Sudrik S. G.; Maddanimath T.; Chaki N. K.; Chavan S. P.; Chavan S. P.; Sonawane H. R.; Vijayamohanan K., "Evidence for the Involvement of Silver Nanoclusters during the Wolff Rearrangement of ?-Diazoketones", Org. Lett., 5, 2355 - 2358 (2003), DOI:10.1021/ol034747g.
  • Chavan S. P.; Dantale S. W. ; Pasupathy K.; Tejwani R. B.; Kamat S. K.; Ravindranathan T. , "Facile conversion of oxathioacetals to carbonyl compounds", Green Chemistry., , 337 - 338 (2002), DOI:10.1039/B200754C.
  • Chavan S. P ; Govande C. A., "Substrate to catalyst dependent conversion of ?,?-dihydroxyesters to butenolides and/or ?-ketoesters: synthesis of heritol, heritonin and mintlactones", Green Chemistry., 4, 194 - 195 (2002), DOI:10.1039/B109544G.
  • Sudrik S. G.; Chavan S. P.; Chandrakumar K. R. S.; Pal S.; Date S. K.; Chavan S. P.; Sonawane H. R., "Microwave Specific Wolff Rearrangement of ?-Diazoketones and Its Relevance to the Nonthermal and Thermal Effect", J. Org. Chem., 67, 1574 - 1579 (2002), DOI:10.1021/jo010951a.
  • Chavan S. P ; Anand R; Pasupathy K; Rao B. S., "Catalytic acetylation of alcohols, phenols, thiols andamines with zeolite H-FER under solventless conditions", Green Chemistry., 3, 320 (2001), DOI:10.1039/B109093C.
  • Kalkote U. R.; Ghorpade S. R.; Chavan S. P, "Simple, Efficient Chemoenzymatic Synthesis of (S)-5-(tert-Butyldimethylsilyloxy)-2-cyclohexenone and Enantiomeric Ketone Intermediates of 19-Nor-1?,25-dihydroxyvitamin D3", J. Org. Chem., 66, 8277 (2001), DOI:10.1021/jo016141g.
  • Ghorpade S. R And ; Kalkote U. R.; Bhide S. R.; Chavan S. P.; Ravindranathan T., "Efficient Synthesis of Optically Pure (4R,6S)-4-(tert-Butyldimethylsilyloxy)- 6-(hydroxymethyl)tetrahydropyran-2-one and Its Enantiomer", J. Org. Chem., 66, 6803 (2001), DOI:10.1021/jo015774s.
  • Chavan S. P ; Tejwani R. B. ; Ravindranathan T., "A Switch of Reactivity Profile in Ionic Intramolecular Annulation Reactions:? A Short and Efficient Synthesis of d-(+)-Biotin", J. Org. Chem., 66, 6197 (2001), DOI:10.1021/jo015730j.
  • Chavan S. P.; Subbarao Y. T. ; Chittiboyina A. G , "Simple Synthesis of 2-Acetyl-5,8-dimethoxy-3,4-dihydronaphthalene: A Key Intermediate for the Synthesis of 4-Demethoxydaunomycinone", J. Chem. Res.(S)., , 380 (1999), DOI:10.1039/A901526D.
  • Chavan S. P.; Patil S. S.; Ravindranathan T, “A simple synthesis of (±)-alpha-cuparenone.”, Tetrahedron., 55, 13417 (1999).
  • Chavan S. P.; Rao Y.T.S., “ Ceric ammonium nitrate (CAN) mediated azidoalkylation of enol ethers and olefins.”, Tetrahedron Letters., 40, 5073 (1999).
  • Chavan S. P.; Venkatraman M. S. , “A Practical and Efficient Synthesis of(±)Camptothecin", Tetrahedron Letters., 39, 6745 (1998).
  • Sastry M.; Lala N.; Patil V.; Chavan S. P.; Chittiboyina A. G. , “ Optical Absorption Study of the Biotin-Avidin Interaction on colloidal Silver and Gold Particles.”, Langmuir., 14, 4138 (1998), DOI:10.1021/la9800755.
  • Chavan S. P.; Dhondge V.D.; Patil S. S.; Rao Y. T. S, “ Enantiospecific Total synthesis of (+)-Laevigatin”, Tetrahedron Asymmetry., 8, 2517 (1997).
  • Chavan S.P.; Ravindranathan T.; Patil S.S.; Dantale S.W, “An Efficient Synthesis of a-Cuparenone.”, Tetrahedron Letters., 37, 2629 (1996).
  • Chavan S.P.; Ethiraj K. S., “Mg/MeOH Mediated Intramolecular Reductive Cyclisation of Activated Dienes.”, Tetrahedron Letters., 36, 2281 (1995).
  • Chavan S. P.; Zubaidha P. K.; Govande C.A.; Subba Rao, “ Novel Oxidative Conversion of b, g-Unsaturated Acids into Butenolides: Synthesis of Heritonin and Heritol.”, . J. Chem. Soc. Chem. Commun., , 1101 (1994), DOI:10.1039/C39940001101.
  • Chavan S. P.; Zubaidha P. K.; Dhondge V. D., “A Short and Efficient Synthesis of (-) Mintlactone and (+) Iso-Mintlactone.”, Tetrahedron., 49, 6429 (1993).
  • Chavan S. P.; Zubaidha P. K.; Ayyangar N. R. , “An Efficient entry into Butenolides Synthesis of (±) Mintlactone.”, Tetrahedron Letters., 33, 4605 (1992).
  • Zubaidha P. K.; Chavan S. P.; Racherla U. S.; Ayyangar N. R., “Synthesis of (±) Heritol.”, Tetrahedron., 47, 5759 (1991).
  • Gassman P. G.; Chavan S. P.; Fertel L. B, “The 2p+ 2p Cycloaddition of an allyl cation to (1Z, 3E)- Cycloalkadienes. Evidence for a Stepwise Process in the Ionic Diels - Alder Reaction.”, Tetrahedron Letters., 31, 6489 (1990).
  • Gassman P. G.; Chavan S. P. , “The ionic Diels–Alder reaction of 1-vinyl-4-methyl-2,6,7-trioxabicyclo[2.2.2]octane. Retention of the ortho ester moiety through the use of the trioxabicyclo[2.2.2]octanyl protecting group”, J. Chem. Soc. Chem. Commun., , 837 - 839 (1989), DOI:10.1039/C39890000837.
  • Gassman P. G.; Chavan S. P. , “Ethynyl ortho esters as precursors of propargyl cations: The low-temperature, ionic diels-alder addition of ethyl propiolate to 1,3-dienes via ethynyl ortho esters”, Tetrahedron Letters., 29, 3407 (1988).
  • Gassman P. ; Chavan S. P. , “The Low - Temperature , Ionic Diels - Alder Addition of Vinyl Orthoesters to 1,3 - Dienes.”, J. Org. Chem., 53, 2392 - 2394 (1988), DOI:10.1021/jo00245a058.
  • Gassman P. G.; Singleton D. A.; Wilwerding J. A.; Chavan S. P. , “ Acrolein Acetals As Allyl Cation Precursors in the ionic Diels - Alder Reaction”, J. Am. Chem. Soc., 109, 2181 - 2182 (1987), DOI:10.1021/ja00241a046.
  • Rama Rao A. V.; Chavan S. P.; Sivadasan L., “ Synthesis of Lavendamycin”, Tetrahedron., 42, 5065 (1986).
  • Rama Rao A. V.; Chavan S. P.; Sivadasan L., “An approach Towards Synthesis of Lavendamycin”, Indian J. Chem., 23B, 496 (1984).