Twenty-one organosilyl- and organogermyl- substitutedferrocenes, most of which contain the M—M(M = Si or Ge) groupings, have been prepared and their 1H NMR spectra have been recorded. The preparations of some organic derivatives of silicon and germanium used in the synthesis are also described.
已经制备了二十一个有机甲硅烷基和有机锗烷基取代的二茂铁,其中大多数含有MM(M = Si或Ge)基团,并记录了它们的1 H NMR光谱。还描述了合成中使用的一些硅和锗的有机衍生物的制备方法。
An alternative route to allylgermanes by the palladium-catalyzed reaction of germylsilanes with allylic halides
作者:Kazuyoshi Ono、Hisao Ishizuka、Taichi Nakano
DOI:10.1016/s0022-328x(99)00308-3
日期:1999.9
Pd(dba)(2) (bis(dibenzylideneacetone)palladium complex) effectively catalyzes the reaction of (dimethylphenylgermyl)trimethylsilane with 2-alkenyl halides to bring about metal-, regio- and stereoselective metathesis resulting in the formation of 2-alkenylphenylgermanes with good yields. On the other hand, the reaction of (chlorodimethylgermyl)trimethylsilane with 2-alkenyl halides is effected by a palladium-phosphine complex to give 2-alkenylchlorogermanes selectively. Germylation of 3,4-dichloro-1-butene with (dimethylphenylgermyl)trimethylsilane forms 1,4-bis(dimethylphenylgermyl)-2-butene with a high yield. (C) 1999 Elsevier Science S.A. All rights reserved.
Sharma, Sneh; Pannell, Keith H., Organometallics, 1993, vol. 12, # 10, p. 3979 - 3983