Addition reactions of cyclic s-trans-enaminones with Grignard reagents.
作者:Thomas T. Shawe、Darren B. Hansen、Kelly Ann Peet、Anthony S. Prokopowicz、Patrice M. Robinson、Annatina Cannon、Kathleen E. Dougherty、Andrew A. Ross、Linda M. Landino
DOI:10.1016/s0040-4020(96)01133-7
日期:1997.2
Addition of Grignard reagents to s-trans-enaminones derived from 1,3-cycloalkanediones are described. In dichloromethane, addition of phenylmagnesium bromide gave 3-phenyl substituted cycloalkenones. Alkylmagnesium halides underwent multiple addition reactions, giving mixtures of the 3-alkylcycloalkenones and 1,3-dialkyl-3-(dialkylamino)cyclohexenes. In tetrahydrofuran, only the 3-alkylcycloalkenone
描述了将格氏试剂添加到衍生自1,3-环烷二酮的s-反式-烯胺酮上。在二氯甲烷中,加入苯基溴化镁得到3-苯基取代的环烯酮。烷基卤化镁经历多次加成反应,得到3-烷基环烯酮和1,3-二烷基-3-(二烷基氨基)环己烯的混合物。在四氢呋喃中,仅获得3-烷基环烯酮。