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1-Alkyl- and Azeto[1,2-a][1,5]benzodiazepine Derivatives in the Reaction of o-Phenylenediamine with 3-(Dimethylamino)propiophenones

✍ Scribed by Braulio Insuasty; Rodrigo Abonia; Jairo Quiroga; Angela Salcedo; Heinz Kolshorn; Herbert Meier

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 252 KB
Volume: 2000
Category: Article
ISSN: 1434-193X
DOI: 10.1002/(sici)1099-0690(200005)2000:10<1973::aid-ejoc1973>3.0.co;2-m

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✦ Synopsis

1,5-benzodiazepines / Cyclizations / Cycloadditions

The reaction of o-phenylenediamine (4) with one, two or three equivalents of p-substituted 3-dimethylaminopropiophenone hydrochlorides 5a-e was studied. 4-Aryl-2,3-dihydro-1H-1,5-benzodiazepine derivatives 6a-e were obtained in good yields, along with the 1:2-adducts 7c-e and

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