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Paper | Regular issue | Vol 75, No. 8, 2008, pp.1963-1970
Published online, 21st March, 2008
DOI: 10.3987/COM-08-11366
Investigation of the Acid-Mediated Cyclisation of Amide Acetal for the Synthesis of Benzazepinone

Wong Phakhodee, Poolsak Sahakitpichan, Songpon Deechongkit, and Somsak Ruchirawat*

*Laboratory of Medicinal Chemistry, Chulabhorn Research Institute, Vipavadee-Rangsit Road, Laksi, Bangkok 10210, Thailand

Abstract

On treatment with acids, the open-chained amide acetals (1) gave the 7,7 membered ring fused benzazepinones (4) via the bis-cyclisation.