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A novel entry into 1,2,3,4,5,6-hexahydro-3-benzazocine-4,6-dione and 2-substituted-2,5,6,7-tetrahydro-4-benzazonine-1,3-(4H)-dione

✍ Scribed by Bansi Lal; D.N. Bhedi; Ramesh M. Gidwani; C. Sankar

Publisher: Elsevier Science
Year: 1994
Tongue: French
Weight: 467 KB
Volume: 50
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(01)85382-5

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✦ Synopsis

Z-Substituted-1,2,3,4,5,6-hexahydro-3-bemwxine-4, 6diones(la-d) and 2-methoxy-2,5,6,7-tetrahydro+ benxamnine-1,3dione 8 were synthesii thro@ an oxklative ring expansion reaction of 6-methylthio-7-substiituted-benzo(a] octem (2a-d ) and 7-methylthio%-methoxy-benzo[a]nonem 7 with sodium periodate in isopropanol respectively.

3-Benzazocines are an important class of biologically active substances 1. Several protracted multistep and usually low yielding syntheses are reported 2 for this system.

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