Search

Your search keyword '"Rupak Chakraborty"' showing total 103 results
Start Over Author "Rupak Chakraborty"
103 results on '"Rupak Chakraborty"'

101. Electrophilic trifluoromethylation of simple inorganic salts: a one step route to trifluoromethylnitromethane, CF3NO2

Author

Rupak Chakraborty, Krishnamurthi Muralidharan, and Jean'ne M. Shreeve

Subjects
Inorganic Chemistry, Inorganic salts, Trifluoromethylation, Chemistry, Yield (chemistry), Organic Chemistry, Electrophile, Nano, Environmental Chemistry, Organic chemistry, One-Step, Physical and Theoretical Chemistry, Biochemistry
Abstract

Trifluoromethylnitromethane is readily synthesized in high yield from the electrophilic trifluoromethylation of NaNO 2 .

Published
2004
Full Text
View/download PDF

102. Chemoselective reduction of aldehydes with zinc borohydride in tetrahydrofuran

Author

Rupak Chakraborty and Brindaban C. Ranu

Subjects
chemistry.chemical_classification, Bicyclic molecule, Organic Chemistry, chemistry.chemical_element, Zinc, Primary alcohol, Borohydride, Biochemistry, Aldehyde, chemistry.chemical_compound, chemistry, Drug Discovery, Organic chemistry, Chemoselectivity, Aliphatic compound, Tetrahydrofuran
Abstract

A variety of structurally different aldehydes undergo chemoselectire reduction over ketones with zinc borohydride in tetrahydrofuran at −10°C to the corresponding alcohols.

Published
1990
Full Text
View/download PDF

103. Studies on oxygen heterocycles

Author

Dipak Chandra Sarkar, Indira Datta, Rupak Chakraborty, Somnath Ghosh, Tapas Kumar Das, and Judhajit Sengupta

Subjects
chemistry.chemical_compound, chemistry, Yield (chemistry), Organic Chemistry, Drug Discovery, Trifluoroacetic acid, Side chain, Organic chemistry, chemistry.chemical_element, Photochemical decomposition, Photochemistry, Biochemistry, Oxygen
Abstract

Trifluoroacetic acid catalysed reaction of 2-methoxyphenyldiazometliylketone ( 4 a), 2-acetoxyphenyldiazomethylketone ( 4 b) and 3-(2-anisyl)-∞-diazo-2-propanone ( 11 ) leads to the formation of coumaranone ( 6 ) and 3-chromanone ( 12 ), while 4-(2-anisyl)-∞-diazo-2-butanone ( 16 ) affords benzco[b]-1-oxepan-3-one ( 17 ) and 5-methoxy-2-tetralone ( 18 ) in moderate yield. The photochemical decomposition of the said diazoketoneg ( 4 a, 11 and 16 ) gave products depending on the length of the side chain present in the substrates.

Published
1989
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results