atom to which it is attached, and (Me3Si)3CSiMe2Cl is even less reactive than t-Bu3SiCl towards base. The compounds (Me3Si)3CSiMe2X (X = Cl, Br, or I) are cleaved by MeOH/MeONa to give (Me3Si)2CHSiMe2OMe, possibly via the silaolefin (Me3Si)2 CSiMe2, and the correspondLug (Me3Si)3 CSiPh2X compounds undergo the analogous reaction even more readily. The halides (Me3Si)3CSiR2X (X = Cl or Br) and (Me3Si)3CSiCl3
                                    (Me 3 Si)3 C基团对与其连接的
硅原子上的亲核位移造成很大的空间位阻,并且(Me 3 Si)3 CSiMe 2 Cl对碱的反应性甚至比t-Bu 3 SiCl低。将化合物(Me 3 Si)3 CSiMe 2 X(X = Cl,Br或I)用MeOH / MeONa裂解,可能通过
硅烯烃(Me 3 Si)2 C产生(Me 3 Si)2 CHSiMe 2 OMe SiMe 2,和correspondLug(ME 3 Si)的3 CSiPh 2X化合物甚至更容易经历类似的反应。卤化物(Me 3 Si)3 CSiR 2 X(X = Cl或Br)和(Me 3 Si)3 CSiCl 3不与沸腾的醇式
硝酸银反应,但是
碘化物(Me 3 Si)3 CSiR 2 I迅速被攻击。