Expedient and Green Synthesis of Some Novel 4-Thiazolidinones and New 2,4-Disubstituted Thiazoles with Tetrahydro Carbazole Pendant

Author(s): Deepika Gautam , Poonam Gautam , Ram P. Chaudhary .

Journal Name: Letters in Organic Chemistry

Volume 9 , Issue 9 , 2012

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Abstract:

A green and efficient synthesis of novel 4-thiazolidinones 4 from cyclocondensation reaction of 2-(2,3-dihydro- 1H-carbazol-4(9H)-ylidene)hydrazinecarbothioamide 3 and α-haloacids catalyzed by N-methylpyridinium tosylate in quantitative yield is reported. Also, synthesis of new 2,4-disubstituted thiazoles 5 under grinding conditions is reported.

Keywords: 4-Thiazolidinones, N-methylpyridinium tosylate, cyclocondensation, thiazoles, grinding, heterocyclic carbazole motif, optoelectronic devices, quantitative, internal standard, chromatography

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Article Details

VOLUME: 9
ISSUE: 9
Year: 2012
Page: [660 - 663]
Pages: 4
DOI: 10.2174/157017812803521081
Price: $58

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