Journal of the Chemical Society. Chemical communications p. 990 - 991 (1982)
Update date:2022-08-11
Topics:
Kurita, Jyoji
Enkaku, Michiko
Tsuchiya, Takashi
Treatment of the 1H-1,2-thienodiazepine (1) and the 1H-1,2-benzodiazepines (7) having an electron-donating substituent in the 7-position with ethyl chloroformate, acetyl chloride, or benzoyl chloride in benzene results in ring-conversion to give the corresponding 1,3-diazepines (3) and (12).
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