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Novel synthesis of 3-phenylazo-1,5-benzothiazepines, -1,5-benzoxazepines and -1,5-benzodiazepines via a one-pot reaction

✍ Scribed by Fawi M. Abd El Latif; Eman A. El-Rady; Mohamed A. Khalil; M. A. El-Maghraby

Publisher
Journal of Heterocyclic Chemistry
Year
2002
Tongue
English
Weight
62 KB
Volume
39
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

Novel polysubstituted ‐1,5‐benzothiazepine, ‐1,5‐benzoxazepine, and ‐1,5‐benzodiazepine were prepared in good yields by the reaction of hydrazono derivatives with o‐thioaminophenol, o‐aminophenol and o‐phenylenediamine via a one‐pot reaction.

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Reactions of 2,3-dihydro-1H-1,5-benzodiazepines and chloroacetyl chlorides: Synthesis of 2a,3,4,5-tetrahydro-azeto [1,2-a][1,5] benzodiazepin-1(2H)-ones
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## Abstract 2a,4‐Disubstituted 5‐benzoyl‐2‐chloro/2,2‐dichloro‐2a,3,4,5‐tetrahydro‐azeto [1,2‐a] [1,5]benzodiazepin‐1 (2H)‐ones (**3a–h**) were synthesized by cycloaddition reactions of 2,4‐disubstituted 1‐benzoyl‐2,3‐dihydr o‐1__H__‐1,5‐benzodiazepines (**2a–h**) and ketenes, generated from chloro