The relative reactivity of olefins was determined in the homogeneous reaction with zinc carbenoid generated from diethylzinc and CH2I2. The Hammett ϱ-value for substituted styrenes in this reaction was −1·61. The inductive effect was concluded to be the most influential factor which determines the relative reactivity of olefins in the reaction. The mechanism of the reaction is discussed in comparison
在与由二乙基锌和CH 2 I 2生成的锌类胡萝卜素的均相反应中确定烯烃的相对反应性。该反应中取代苯乙烯的Hammett ϱ值为-1·61。结论是诱导作用是决定反应中烯烃相对反应性的最重要因素。与其他卡宾和类胡萝卜素反应相比,讨论了该反应的机理。
Synthesis of cyclopropanes by the reaction of olefins with dialkylzinc and methylene iodide
作者:J. Furukawa、N. Kawabata、J. Nishimura
DOI:10.1016/0040-4020(68)89007-6
日期:1968.1
A novel synthetic route to cyclopropanes by the reaction of olefins with dialkylzinc and methylene iodide is described. The essential feature of the reaction is similar to that of the Simmons-Smith reaction which involves the treatment of olefins with methylene iodide and zinc-copper couple. However, the novel route gives cyclopropanes more easily and is particularly suitable for the conversion of
申请人:The Trustees of the University of Pennsylvania
公开号:EP2292779A2
公开(公告)日:2011-03-09
Sequences of novel adeno-associated virus capsids and vectors and host cells containing these sequences are provided. Also described are methods of using such host cells and vectors in production of rAAV particles. AAV-mediated delivery of therapeutic and immunogenic genes using the vectors of the invention is also provided.