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Your search keyword '"Borah, Pallabi"' showing total 4 results
Start Over Author "Borah, Pallabi" Journal tetrahedron letters: international organ for the rapid publication of preliminary communications in organic chemistry Publisher elsevier b.v.
4 results on '"Borah, Pallabi"'

1. Synthesis of some tetrazole fused pyrido[2,3-c]coumarin derivatives from a one-pot three-component reaction via intramolecular 1,3-dipolar cycloaddition reaction of azide to nitriles

Author

Borah, Pallabi, Seetham Naidu, P., and Bhuyan, Pulak J.

Subjects
*ORGANIC synthesis, *TETRAZOLES, *COUMARIN derivatives, *RING formation (Chemistry), *SODIUM azide, *ACETONITRILE, *ALKYL group
Abstract

Abstract: Some novel tetrazole fused pyrido[2,3-c]coumarin derivatives 5/7/9 were synthesized from a one-pot three-component reaction of 4-chloro-3-formylcoumarins 2, sodium azide 3, and alkyl/aryl acetonitriles 4/6/8. [Copyright &y& Elsevier]

Published
2012
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2. An efficient and regioselective one-pot multi-component synthesis of pyrimido[4,5-d]pyrimidine derivatives in water.

Author

Majumder, Swarup, Borah, Pallabi, and Bhuyan, Pulak J.

Subjects
*REGIOSELECTIVITY (Chemistry), *CHEMICAL synthesis, *PYRIMIDINE derivatives, *ISOTHIOCYANATES, *AROMATIC aldehydes, *SULFONIC acids, *LEWIS acids
Abstract

Abstract: Pyrimido[4,5-d]pyrimidine derivatives 4 have been prepared in an efficient and regioselective manner in water via multi-component reaction of isothiocyanate 1, aromatic aldehyde 2, N,N-dimethyl-6-amino uracil 3 in the presence of p-toluenesulfonic acid (p-TSA) as a Lewis acid catalyst. [Copyright &y& Elsevier]

Published
2014
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3. Synthesis of some novel spiro substituted pyrido[2,3-c]coumarins by exploring ‘tertiary amino effect’ reaction strategy.

Author

Borah, Pallabi and Bhuyan, Pulak J.

Subjects
*HETEROCYCLIC compounds synthesis, *COUMARINS, *SUBSTITUTION reactions, *SPIRO compounds, *AMINO group, *CHEMICAL reactions, *COUMARIN derivatives
Abstract

Abstract: Some novel spiro substituted pyrido[2,3-c]coumarin derivatives were synthesized from 4-hydroxycoumarin by exploring ‘tertiary amino effect’ reaction strategy. [Copyright &y& Elsevier]

Published
2013
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4. Synthesis of some novel functionalized dihydropyrido[2,3-d]pyrimidines via an one-pot three-component reaction catalysed by InCl3

Author

Seetham Naidu, P., Borah, Pallabi, and Bhuyan, Pulak J.

Subjects
*PYRIMIDINE synthesis, *CATALYSIS, *INDIUM chlorides, *PYRIMIDINE derivatives, *URACIL, *ALDEHYDES, *INDOLE, *CHEMICAL reactions
Abstract

Abstract: Some novel functionalized dihydropyrido[2,3-d]pyrimidine derivatives 4 were synthesized using a one-pot three-component reaction of 6-aminouracils 1, aryl aldehydes 2 and 3-cyanoacetyl indole 3 using InCl3 as catalyst. [Copyright &y& Elsevier]

Published
2012
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