High pressure -Lewis acid catalyzed diels-alder reactions of 3-methylcyclohex-2-en-1-one. A straightforward route to cis and Tras angularly methylated octalones.
作者:René W.M. Aben、Lucio Minuti、Hans W. Scheeren、Aldo Taticchi
DOI:10.1016/0040-4039(91)80191-8
日期:1991.10
By the application of highpressure in combination with EtAlCl2 as the Lewis acid, it is possible to achieve Diels-Alderreactions of 3-methylcyclohex-2-en-1-one with simple acyclic dienes. This cycloaddition offers the most straigthforward route to cis and trans angularlymethylatedoctalones, precursors in the total synthesis of terpenes and steroids.