Publications by authors named "Sumit K Ray"

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Brønsted acid-catalyzed enantioselective addition of 1,3-diones to generated -acyl ketimines.
Milon M Sadhu, Sumit K Ray, Rajshekhar A Unhale, Vinod K Singh

Org Biomol Chem· January 2022

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Organocatalytic Asymmetric Cascade Michael-acyl Transfer Reaction between 2-Fluoro-1,3-diketones and Unsaturated Thiazolones: Access to Fluorinated 4-Acyloxy Thiazoles.
Rayhan G Biswas, Sumit K Ray, Rajshekhar A Unhale, Vinod K Singh

Org Lett· August 2021

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Cu(I)-Catalyzed asymmetric -selective synthesis of substituted pyrrolidines a 1,3-dipolar cycloaddition reaction.
Rayhan G Biswas, Sumit K Ray, Vinod K Kannaujiya, Rajshekhar A Unhale, Vinod K Singh

Org Biomol Chem· June 2021

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BF·OEt-Catalyzed Vinyl Azide Addition to in Situ Generated -Acyl Iminium Salts: Synthesis of 3-Oxoisoindoline-1-acetamides.
Deb Kumar Das, Vinod Kumar Kannaujiya, Milon M Sadhu, Sumit Kumar Ray, Vinod K Singh

J Org Chem· December 2019

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A General Catalytic Route to Enantioenriched Isoindolinones and Phthalides: Application in the Synthesis of ( S)-PD 172938.
Sumit K Ray, Milon M Sadhu, Rayhan G Biswas, Rajshekhar A Unhale, Vinod K Singh

Org Lett· January 2019

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A chiral Brønsted acid-catalyzed highly enantioselective Mannich-type reaction of α-diazo esters with in situ generated N-acyl ketimines.
Rajshekhar A Unhale, Milon M Sadhu, Sumit K Ray, Rayhan G Biswas, Vinod K Singh

Chem Commun (Camb)· April 2018

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Efficient Synthesis of Ditopic Polyamide Receptors for Cooperative Ion Pair Recognition in Solution and Solid States.
Sumit Kumar Ray, Alexandre Homberg, Mahesh Vishe, Céline Besnard, Jérôme Lacour

Chemistry· February 2018

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(R)-DM-SEGPHOS-Ag(I)-Catalyzed Enantioselective Synthesis of Pyrrolidines and Pyrrolizidines via (1,3)- and Double (1,3)-Dipolar Cycloaddition Reactions.
Sumit K Ray, Rayhan G Biswas, Arun Suneja, Milon M Sadhu, Vinod K Singh

J Org Chem· February 2018

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Asymmetric direct vinylogous Michael addition to 2-enoylpyridine N-oxides catalyzed by bifunctional thio-urea.
Subhrajit Rout, Sumit K Ray, Rajshekhar A Unhale, Vinod K Singh

Org Lett· November 2014

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Enantioselective Mukaiyama-Michael with 2-enoyl pyridine N-oxides catalyzed by PYBOX-DIPH-Zn(II)-complexes at ambient temperature.
Subhrajit Rout, Sumit K Ray, Vinod K Singh

Org Biomol Chem· July 2013

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Enantioselective synthesis of 3,4-dihydropyran derivatives via a Michael addition reaction catalysed by chiral pybox-diph-Zn(II) complex.
Sumit K Ray, Subhrajit Rout, Vinod K Singh

Org Biomol Chem· April 2013

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Enantioselective synthesis of coumarin derivatives by PYBOX-DIPH-Zn(II) complex catalyzed Michael reaction.
Sumit K Ray, Pradeep K Singh, Nagaraju Molleti, Vinod K Singh

J Org Chem· October 2012

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Enantioselective Michael addition of malonates to 2-enoylpyridine N-oxides catalyzed by chiral bisoxazoline-Zn(II) complex.
Sumit K Ray, Pradeep K Singh, Vinod K Singh

Org Lett· November 2011

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