The sterically hindered organogermanium compounds (Me3Si)3CGeR2X (R = Me; X = Cl or I; R = Et, X = Br) have been prepared and their reactions examined. In contrast to the corresponding (Me3Si)3CSiR2X species, the germanium compounds undergo normal (though very slow) direct nucleophilic substitutions at germanium. Thus the iodide (Me3Si)3CGeMe2I reacts with boiling MeOH or, more rapidly, with AgNO3MeOH
制备了位阻
有机锗化合物(Me 3 Si)3 CGeR 2 X(R = Me; X = Cl或I; R = Et,X = Br),并检查了它们的反应。与相应的(Me 3 Si)3 CSiR 2 X物种相反,
锗化合物在
锗处经历了正常的(尽管非常缓慢的)直接亲核取代。因此,
碘化物(Me 3 Si)3 CGeMe 2 I与沸腾的MeOH反应,或更迅速地与AgNO 3 = MeOH反应,得到
甲醇盐(Me 3 Si)3 CGeMe 2 OMe。化合物(Me 3 Si)3CGER 2 X,其中R = Me中,X = Cl或R =的Et,X = Br的做在与沸腾的MeOH中的显著率不反应,但做NaOMeMeOH或
硝酸银反应3 MeOH,得到相应的
甲醇盐(ME 3 Si)3 CGeR 2 OMe。