2-Amino-6-phenyl-7,8-dihydroindazolo[4,5-d]thiazoles

Autor: Strakova, I. A., Strakov, A. Ya., Petrov, M. V.
Zdroj: Chemistry of Heterocyclic Compounds; April 1996, Vol. 32 Issue: 4 p431-434, 4p
Abstrakt: Treatment of 4-oxo-l -phenyl-4,5,6,7-tetrahydroindazole and its 3-methyl, 6-phenyl, and 3-methyl-6 phenyl substituted derivatives with pyridinium bromide-perbromide and subsequent reaction of the 5-brorno derivatives obtained with thiourea gave 2-amino-6 phenyl-7, 8-dihydroindazolo[4,5-d]thiazole and its corresponding substituted derivatives. The condensation of these products with 2 formyldimedone led to their 4, 4-dimethyl-2, 6-dioxocyclohexylidene derivatives.
Databáze: Supplemental Index
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