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A Novel Synthetic Protocol for the Heteroannulation of Oxocarbazole and Oxoazacarbazole Derivatives through Corresponding Oxoketene Dithioacetals
Author(s) -
Tyagi Ruchi,
Kaur Navjeet,
Singh Bhawani,
Kishore Dharma
Publication year - 2014
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.1523
Subject(s) - chemistry , isoxazole , pyrimidine , pyrazole , stereochemistry , combinatorial chemistry
An efficient novel strategy for the heteroannulation of 6,7‐dihydropyrazolo[3,4‐b]carbazol‐8( 1H,5H,9H )‐one 4 and 5‐ N ‐benzyl‐6,7‐dihydropyrazolo[3,4‐b]carbazol‐8( 1H,9H )‐one 5 has been developed to allow the incorporation of pyrazole, isoxazole, pyrimidine, benzodiazepine, and benzothiazepine rings through their corresponding oxoketene dithioacetal derivatives 6 and 7 , respectively.