New Digermylalkenes and Digermylalkynes: [1,3]-Chlorine Shifts in Organogermanium Chemistry?
作者:Gabriela Nemes、Jean Escudié、Ioan Silaghi-Dumitrescu、Henri Ranaivonjatovo、Luminita Silaghi-Dumitrescu、Heinz Gornitzka
DOI:10.1021/om061188j
日期:2007.10.1
Dimesitylfluoro(trichloromethyl)germane (1) has been synthesized from difluorodimesitylgermane, chloroform, and n-butyllithium. Addition of n-butyllithium to compound 1 gave the lithium carbenoid Mes2(F)Ge−C(Li)Cl2 (2), which behaves as a synthetic equivalent of the C-dichlorogermene Mes2GeCCl2 (5). Warming 2 to room temperature afforded the 1,2-digermylalkene Mes2(F)Ge−CClCCl−Ge(Cl)Mes2 (6) possibly
二氟甲基(三氯甲基)锗烷(1)已经由二氟二甲基锗烷,氯仿和正丁基锂合成。向化合物1中添加正丁基锂得到类胡萝卜素Mes 2(F)Ge-C(Li)Cl 2(2),其表现为C-二氯锗烯Mes 2 Ge CCl 2(5)的合成等价物。将2加热至室温可得到1,2-二聚二甲基烯烃Mes 2(F)Ge-CCl CCl-Ge(Cl)Mes 2(6)可能是由瞬态生殖烯Mes 2(F)Ge-CCl 2 -CCl GeMes 2(8)发生前所未有的[1,3] -Cl位移。的加成叔丁基锂至6,得到双(chlorogermyl)炔的Mes 2(CL)的Ge-C⋮C-葛(CL)的Mes 2(9)可能通过一个3-氯-1- germaallene /(chlorogermyl)炔重排。