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pro vyhledávání: '"Chinmoy Manna"'
Synthesis of enantiopure, densely functionalized carbocycles from vinyl nitro-modified carbohydrates
Autor:
Chinmoy Manna, Tanmaya Pathak
Department of Chemistry, Indian Instituteof Technology Kharagpur, Kharagpur-721 302, West Bengal, India E-mail: tpathak@chem.iitkgp.ac.in Manuscript received online 27 December 2019, revised and accepted 09 January 2020 A powerful, flexible, and ster
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87c51c98c84cb179c218cf403c7333d6
Autor:
Tanmaya Pathak, Chinmoy Manna
Publikováno v:
ChemistrySelect. 2:4021-4027
A single carbohydrate-derived molecule consisting of a masked aldehyde, a Michael acceptor and a number of cleavable bonds has been designed. The adducts generated from this Michael acceptor and a series of β-dicarbonyl compounds and related reagent
Publikováno v:
European Journal of Organic Chemistry. 2013:8197-8207
A vinyl sulfone modified bicyclic sugar molecule undergoes efficient Michael addition of hetero- and carbon nucleophiles to afford single diastereomers. The same molecule consisting of two other masked functional groups, namely an aldehyde and an oxo
Autor:
Tanmaya Pathak, Chinmoy Manna
Publikováno v:
European Journal of Organic Chemistry. 2013:6084-6097
A single sugar molecule containing three functional groups, namely a masked aldehyde, a Michael acceptor and a leaving group, reacts with a series of β-dicarbonyl compounds and related reagents to form up to three new bonds and up to three new stere
Autor:
Chinmoy Manna, Atanu Bhaumik, Tarun Kumar Pal, Ananta Kumar Atta, Tanmaya Pathak, Debanjana Dey
Publikováno v:
European Journal of Organic Chemistry. 2012:5010-5017
Vinyl sulfoxide-modified pent-2-enofuranosides and hex-2-enopyranosides have been synthesized by using a controlled oxidation of C-3-deoxy-C-3-thioaryl furanosides and pyranosides, respectively, followed by mesylation of the C-2-hydroxyl group and el
Autor:
Manoj K. Kesharwani, C.G. Suresh, Bishwajit Ganguly, Tanmaya Pathak, Chinmoy Manna, Rahul Bhattacharya
Publikováno v:
The Journal of Organic Chemistry. 75:303-314
Although phenylmethylene-protected vinyl sulfone-modified carbohydrate 2alpha reacts with both primary and secondary amines in Michael fashion to afford aminated products, only primary amines react with the dibenzyl-protected 3alpha, 6-O-trityl-prote
Publikováno v:
Tetrahedron Letters. 54:3971-3973
Since reactions between carbohydrates and cyclic 1,3-dicarbonyl compounds do not produce 1,8-dioxooctahydroxanthenes in general, reaction strategies have been devised to generate new 1,8-dioxooctahydroxanthene C-nucleosides by reacting sugars masked
Publikováno v:
ChemInform. 45
Title vinyl sulfone (III) is applied as Michael acceptor for carbon, nitrogen, and oxygen nucleophiles for the first time.
Autor:
Chinmoy Manna, Tanmaya Pathak
Publikováno v:
ChemInform. 45
A single sugar molecule containing three functional groups, namely a masked aldehyde, a Michael acceptor and a leaving group, reacts with a series of β-dicarbonyl compounds and related reagents to form up to three new bonds and up to three new stere