Chemical and Pharmaceutical Bulletin p. 2267 - 2269 (1992)
Update date:2022-08-03
Topics:
Katayama
Sakurada
Herath
Takatsu
Shen
4H-Pyrazolo[1,5-a]indole was prepared by two pathways employing the decarbonylation of 2-formyl-4H-pyrazolo[1,5-a]indole and the intramolecular cyclization of 1-(2'-carboethoxyphenyl)pyrazole as key reactions. The latter approach was found to be more practical than the former one.
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