7,10A-Methanocycloocta[c,d]indazoles: Diisophoranes incorporating the pyrazole ring system

Autor: Frederick Kurzer, Stanley S. Langer
Rok vydání: 1990
Předmět:
Zdroj: Journal of Heterocyclic Chemistry. 27:871-879
ISSN: 1943-5193
0022-152X
DOI: 10.1002/jhet.5570270410
Popis: Compounds of the novel 7,10a-methanocycloocta[c,d]indazole ring-system 5, 7 are obtained by the action of hydrazines on 1-chloro(or hydroxy)diisophor-2,7-en-3-ones 1–3. Their formulation agrees with their origin and their chemical and spectral characteristics. Analogous syntheses of two comparable ring-systems include the production of a substituted 7,10a-methanocycloocta[g,h][2,1]benzisoxazole 10 by a facile cyclodehydration of the oxime of diisophorone 9a, and that of the indole-analogue 13 by the action of aniline on diisophorone-1-carboxylic acid 11.
Databáze: OpenAIRE