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ChemInform Abstract: New Synthetic Methodology for Construction of the 1,3,4,5-Tetrahydro-2H-1,3-benzodiazepin-2-one Skeleton.

✍ Scribed by Cagatay Dengiz; Sevil Oezcan; Ertan Sahin; Metin Balci

Publisher: John Wiley and Sons
Year: 2010
Weight: 21 KB
Volume: 41
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.201035180

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✦ Synopsis

Abstract

The preparation of parent compound (VI) is achieved via 2 Curtius rearrangements of the diazide (II) as the key step.

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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