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Synthesis of 4-styryl-2,3-dihydro-1H-1,5-benzodiazepin-2-ones

✍ Scribed by Z. F. Solomko; A. A. Gaponov; V. I. Avramenko; M. P. Khmel'

Publisher: Springer US
Year: 1987
Tongue: English
Weight: 265 KB
Volume: 23
Category: Article
ISSN: 0009-3122
DOI: 10.1007/bf00479381

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✦ Synopsis

UDC 547.892.07:543. 422.25'51 4-Styryl-2,3-dihydro-iH-l,5-benzodiazepin-2-ones were synthesized and their structure was established by means of PMR spectra and mass spectroscopy.

There is no unequivocal information on the structure of the reaction products of 4methyl-2,3-dihydro-iH-l,5-benzodiazepin-2-ones (Ia-d) with aromatic aldehydes. It was shown in [1-3] that it is not the methylene group but the methyl group that enters the reaction to form 4-styryl-2,3-dihydro-IH-l,5-benzodiazepin-2-one (IIa). Recently [4], it was reported that, according to certain chemical transformations, compounds IIe, g are 3-arylidene derivatives III. However, the authors did not prove the structure of the compounds obtained.

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