Synthesis of 2H??indazole??4, 7??dione derivatives from 3??phenylsydnone and p??toluquinone. The crystal and molecular structure of 6??bromo??5??methyl??2??phenyl??2H?? …

S Nan'ya, K Katsuraya, E Maekawa…

Index: Journal of Heterocyclic Chemistry, , vol. 24, p. 971 - 975

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Citation Number: 10

Abstract

... 971 /. Heterocyclic Chem., 24, 971 (1987). Our interest in the 1,3-dipolar cycloaddition reactions of meso-ionic heterocycles to /j-benzoquinone derivatives led us to synthesize some 2ff-isoindole-4,7-dione derivatives as a useful precursor of phenothiazone derivatives [1 ...