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Title: Microwave-assisted one-pot synthesis of antifungal active 1-substituted-3,7-dialkyl/aryl-4H-pyrazolo[4,5-f]¬[1,2,4]triazolo[3,4-b][1,3,4]thiadiazepines using solid support
Authors: Gupta, Monika
Paul, Satya
Gupta, Rajive
Keywords: Pyazolo
Microwave irradiation
Issue Date: Mar-2009
Publisher: CSIR
Abstract: A simple, efficient and environment-friendly procedure is developed for the synthesis of 1-substitued-3,7-dialkyl/aryl-4H-pyrazolo[4,5-f][1,2,4]triazolo[3,4-b][1,3,4]thiadiazepines 3 by condensa¬tion of 1-amino-2-mercapto-1,3,4-triazoles 1 and 5-chloro-4-formyl-1,2-pyrazoles 2 in the presence of N,N-dimethyl¬formamide as an energy transfer medium, p-TsOH as catalyst and basic alumina as solid support under microwave irradiation. The products are obtained in good to moderate yields and are in a state of high purity.
Description: 460-466
ISSN: 0376-4699
Appears in Collections:IJC-B Vol.48B(03) [March 2009]

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