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An anomalous reaction of 7‐chloro‐2‐hydrazono‐5‐phenyl‐1,2‐dihydro‐3 H ‐1,4‐benzodiazepine with sodium acetate and 1,1′‐carbonyldiimidazole
Author(s) -
Banks William R.,
Hawi Amale A.,
Digenis George A.
Publication year - 1991
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.5570280263
Subject(s) - chemistry , hydrazone , benzodiazepine , medicinal chemistry , sodium acetate , sodium , organic chemistry , receptor , biochemistry
The addition of 7‐chloro‐2‐hydrazono‐5‐phenyl‐1,2‐dihydro‐3 H ‐1,4‐benzodiazepine 3 to a mixture of sodium acetate and 1,1′‐carbonyldiimidazole 1 at room temperature gave, in moderate yields, carbonyl‐1,1′‐bis[7‐chloro‐5‐phenyl‐1,2‐dihydro‐3 H ‐1,4‐benzodiazepin‐2‐ylidene hydrazone] 7 instead of the expected 2‐acetylhydrazono‐7‐chloro‐5‐phenyl‐1,2‐dihydro‐3 H ‐1,4‐benzodiazepine 4 .