Reactions of sterically hindered organozinc and organocadmium compounds containing functional silicon centres. Crystal structures of Zn[C(SiMe3)2(SiMe2OCOCF3)]2 and Cd[C(SiMe3)2(SiMe2OMe)]2
作者:Salih S. Al-Juaid、Colin Eaborn、Abraha Habtemariam、Peter B. Hitchcock、J.David Smith
DOI:10.1016/0022-328x(92)83430-p
日期:1992.8
The compound (Me3Si)2CCl2 was converted by treatment with BuLi/Et2O/THF and then with Me2HSiCl into (Me3Si2)CCl(SiMe2H). Further lithiation with BuLi gave LiC(SiMe3)2(SiMe2H), which reacted with ZnBr2 to yield Zn[C(SiMe3)2(SiMe2H)]2. Thence, several new organozinc compounds Zn[C(SiMe3)2(SiMe2X)]2, with X Cl, Br, I, F, OH, OMe, O2CCF3, O2CH, or NCS, were obtained by substitutions at silicon without
通过用BuLi / Et 2 O / THF处理,然后用Me 2 HSiCl处理,将化合物(Me 3 Si)2 CCl 2转化为(Me 3 Si 2)CCl(SiMe 2 H)。用BuLi进一步锂化得到LiC(SiMe 3)2(SiMe 2 H),其与ZnBr 2反应产生Zn [C(SiMe 3)2(SiMe 2 H)] 2。因此,几种新的有机锌化合物Zn [C(SiMe 3)2(SiMe 2 X)] 2通过在硅上取代而不裂解ZnC键获得具有XCl,Br,I,F,OH,OMe,O 2 CCF 3,O 2 CH或NCS的化合物。类似地获得了具有X,H,OMe和Ph的化合物Cd [C(SiMe 3)2(SiMe 2 X)] 2,但是随后在Si处的取代伴随有在Cd处的反应。三氟乙酰基衍生物Zn [C(SiMe 3)2(SiMe 2 OCOCF 3)] 2的晶体结构表明,该分子是中心对称的,与O