Research Group Publications

 
  • Siddharth K. Deepake, Manish Kumar, Pawan Kumar And Utpal Das, alpha-Angelica Lactone Catalysed Oxidation of Pyrrolidines to Lactams, Eur. J. Org. Chem., , xxxx - xxxx (2022), DOI:10.1002/ejoc.202200712.
  • Someshwar B. Kale, Popat K. Jori And Utpal Das*, Rongalite as a Sulfone Source: Sulfonylation of para -Quinone Methides and Alkyl/allyl Halides, Chemistry-An Asian Journal., xx, xxxx - xxxx (2022), DOI:10.1002/asia.202200408.
  • Pawan Kumar, Someshwar B. Kale, Rajesh G. Gonnade And Utpal Das*, Acid Mediated Sulfonylation of para-Quinone Methides with Tosylmethyl Isocyanides for the Synthesis of Diarylmethyl Sulfones, ChemistrySelect., 6, 7158 - 7161 (2021), DOI:10.1002/slct.202102272.
  • Thanusha Thatikonda, ‡ Siddharth K. Deepake‡ Pawan Kumar And Utpal Das*, alpha-Angelica lactone catalyzed oxidation of benzylic sp3 C–H bonds of isochromans and phthalans, Org. Biomol. Chem., 18, 4046 - 4050 (2020), DOI:10.1039/D0OB00729C. ‡ These authors contributed equally.
  • Thanusha Thatikonda, Siddharth K. Deepake And Utpal Das*, alpha-Angelica Lactone in a New Role: Facile Access to N-Aryl Tetrahydroisoquinolinones and Isoindolinones via Organocatalytic alpha-CH2 Oxygenation, Organic Letters., 21, 2532 - 2535 (2019), DOI:10.1021/acs.orglett.9b00224.
  • Someshwar B. Kale, Popat K. Jori, Thanusha Thatikonda, Rajesh G. Gonnade And Utpal Das, 1,6-Conjugate-Addition-Induced [2 + 1] Annulation of para-Quinone Methides and Pyrazolones: Synthesis of Bis-Spiro Compounds with Contiguous Quaternary Spiro-Centers, Organic Letters., 21, 7736 - 7740 (2019), DOI:10.1021/acs.orglett.9b02641.
  • S. K. Deepake, A. B. Lanjewar, T. Thatikonda And R. G. Gonnade Utpal. Das*, Organocatalytic Asymmetric Cascade Reaction of gamma-Substituted Deconjugated Butenolides with o-Formyl-beta-nitrostyrene, ChemistrySelect., 3, 8189 - 8192 (2018), DOI:10.1002/slct.201801467.
  • Anil K. Mahida And Someshwar B. Kale and Utpal Das*, Synthesis Route to Pyrrolones from alpha-Beta Cyano -Unsaturated Ketones and alpha-Isocyano Esters by Oxidative Dearomatization of 2-Aminofuran Intermediates, Eur. J. Org. Chem., , 6427 - 6433 (2017), DOI:10.1002/ejoc.201701194.
  • Yu-Shiou Fan, † Utpal Das, † Ming-Yu Hsiao, Meng-Hsien Liu And and Wenwei Lin, Chemoselective Intramolecular Wittig Reactions for the Synthesis of Oxazoles and Benzofurans, J. Org. Chem., 79, 11567 - 11582 (2014), DOI:dx.doi.org/10.1021/jo502232q.
    †Y.-S. Fan and U. Das contributed equally.
  • Utpal Das, Yi-Ru Chen And Meng-Hsien Liu and Wenwei Lin , Asymmetric Synthesis of 5-Substituted ?-Lactams via Vinylogous Michael Addition (Manuscript under preparation), xxx., , (2014).
  • Y.-L. Tsai, S.-e Syu, S.-M. Yang, U. Das, Y.-S. Fan And C.-J. Lee and W. Lin, Synthesis of Multi-Functional Alkenes via Wittig Reaction with a New-type of Phosphorus Ylide, Tetrahedron., 70, 5038 - 5045 (2014).
  • Utpal Das And Yi-Ling Tsai and Wenwei Lin, Chemoselective Intramolecular Wittig Reaction for the Synthesis of Functionalized Heterocycles (a perspective review article), Org. Biomol. Chem., 12, 4044 - 4050 (2014).
  • Utpal Das And Yi-Ling Tsai and Wenwei Lin , An efficient organocatalytic enantioselective synthesis of spironitrocyclopropanes (Selected as an Organic & Biomolecular Chemistry HOT Article), Org. Biomol. Chem., 11, 44 - 47 (2013).
  • Yen-Te Lee, Utpal Das, Yi-Ru Chen, Chia-Jui Lee, Chi-Han Chen, Mei-Chun Yang And and Wenwei Lin, Enantioselective Synthesis of Coumarin Derivatives Catalyzed by Primary Amine, Adv. Synth. Catal., 355, 3154 - 3160 (2013).
  • Yi-Ling Tsai, Yu-Shiou Fan, Chia-Jui Lee, Chan-Hui Huang, Utpal Das And and Wenwei Lin , An Efficient Synthesis of Trisubstituted Oxazoles via Chemoselective O-acylations and Intramolecular Wittig Reactions, Chem. Commun., 49, 10266 - 10268 (2013).
  • Utpal Das, Yi-Ru Chen And Yi-Ling Tsai and Wenwei Lin, Organocatalytic Enantioselective Direct Vinylogous Michael Addition of ?-Substituted Butenolides to 3-Aroyl Acrylates and 1,2-Diaroylethylenes, Chem. Eur. J., 19, 7713 - 7717 (2013).
  • Yi-Ling Tsai, Utpal Das, Siang-en Syu And Chia-Jui Lee and Wenwei Lin , Facile Synthesis of Functional Tricyclic Fused Furans via Intramolecular Wittig Reactions, Eur. J. Org. Chem., , 4634 - 4641 (2013).
  • Utpal Das And Chan-Hui Huang and Wenwei Lin, Enantioselective synthesis of substituted pyrans via amine-catalyzed Michael addition and subsequent enolization/cyclisation, Chem. Commun., 48, 5590 - 5592 (2012).
  • Siang-en Syn, Chan-Hui Huang, Ko-Wei Chen, Chia-Jui Lee, Utpal Das And Yeong-Jiunn Jang and Wenwei Lin , Enantioselective organocatalytic Michael addition of ketones to alkylidene malonates, Chirality., 24, 600 - 605 (2012).
  • Yeong-Jiunn Jang, Siang-En Syu, Yi-Wun Jhang, Yu-Ting Lee, Chia-Jui Lee, Ko-Wei Chen And Utpal Das and Wenwei Lin , Tandem three-component reactions of aldehyde, alkyl acrylate, and dialkyl malonate catalyzed by ethyl diphenylphosphine, Molecules., 17, 2529 - 2541 (2012).
  • Jerome Bayardon, Hugo Laureano, Vincent Diemer, Mathieu Dutartre, Utpal Das, Yoann Rousselin, Jean-Christophe Henry, Franc?oise Colobert, Fre?de?ric R. Leroux And and Sylvain Juge? , Stereoselective Synthesis of o-Bromo (or Iodo)aryl P-Chirogenic Phosphines Based on Aryne Chemistry, J. Org. Chem., 77, 5759 - 5769 (2012).
  • Deevi Basavaiah And Suparna Roy and Utpal Das , Towards understanding the scope of Baylis-Hillman reaction: Synthesis of 3-(2-hydroxyphenyl)indolin-2-ones and polycyclic fused furans, Tetrahedron., 66, 5612 - 5622 (2010).
  • Deevi Basavaiah And Utpal Das and Suparna Roy , Towards chiral diamines as chiral catalytic precursors for the borane-mediated enantioselective reduction of prochiral ketones, J. chem. Sci., 12, 1003 - 1010 (2009).
  • 5 ) Deevi Basavaiah, Vanampally Chandrashekar And Utpal Das and Gone Jayapal Reddy , A study toward understanding the role of a phosphorus stereogenic center in (5S)-1,3-diaza-2-phospha-2-oxo-3-phenylbicyclo(3.3.0)octane derivatives as catalysts in the borane-mediated asymmetric reduction of prochiral ketones, Tetrahedron: Asymmetry., 16, 3955 - 3962 (2005).