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 high pressure in combination with EtAlCl2 as the Lewis acid, it is possible to achieve Diels-Alder reactions of 3-methylcyclohex-2-en-1-one with simple acyclic dienes. This cycloaddition offers the most straigthforward route to cis and trans angularly methylated octalones, precursors in the total synthesis of terpenes and steroids.
通过与EtAlCl 2作为路易斯酸结合使用高压,可以实现3-甲基环己-2-烯-1-酮与简单的无环二烯的狄尔斯-阿尔德反应。这种环加成反应为顺式和反式甲基化的八氢萘酮(萜烯和甾类化合物总合成的前体)提供了最直接的途径。