Dimerization Behavior of Substituted Bicyclo[3.1.0]hex-1-ene Derivatives
作者:Jun-Cheng Zheng、Huaqing Liu、Nam-Kyu Lee、Daesung Lee
DOI:10.1002/ejoc.201301575
日期:2014.1
individual steps along the reaction pathway including a Brook rearrangement, elimination of lithium trimethylsilanolate to form alkylidene carbenes, and their addition to an alkene to form strained bicyclo[3.1.0]hex-1-ene derivatives were significantly affected by the substituents near or on the alkene moiety. Especially, the dimerization of bicyclo[3.1.0]hex-1-enes depends critically on the substituent pattern
描述了三甲基甲硅烷基重氮甲烷锂与各种 4-烯基酮的不同反应曲线。发现沿着反应途径的各个步骤包括布鲁克重排、消除三甲基硅烷醇化锂以形成亚烷基卡宾,以及它们与烯烃的加成以形成应变的双环 [3.1.0] 己-1-烯衍生物显着受以下因素的影响:烯烃部分附近或上的取代基。特别是,双环[3.1.0]己-1-烯的二聚反应关键取决于烯烃的取代基模式,该模式控制反应以协同或逐步方式进行。在 X 射线衍射分析的基础上,明确阐明了具有前所未有的结构复杂性的二聚体。