Cyclomagnesation of Olefins with Ethylmagnesium Bromide in the Presence of Titanium Complexes
作者:U. M. Dzhemilev、V. A. D’yakonov、L. O. Khafizova、A. G. Ibragimov
DOI:10.1007/s11178-005-0169-z
日期:2005.3
Cyclomagnesation of terminal and cyclic olefins and 1,2-dienes with RMgHlg and R2Mg in the presence of dichloro(dicyclopentadienyl)titanium(IV) gives non-Grignard cyclic and acyclic organomagnesium compounds. The reaction direction depends on the structure of unsaturated initial compound. The most probable reaction mechanism is discussed.
在二氯(二环戊二烯基)钛(IV)存在下,末端和环状烯烃及 1,2-二烯与 RMgHlg 和 R2Mg 发生环镁反应,生成非格氏环状和非环状有机镁化合物。反应方向取决于不饱和初始化合物的结构。讨论了最可能的反应机理。