which reacts with Ph3MCl to form Ph3MC(BO2C3H6)3, where M is Ge, Sn, or Pb. Repetition of these processes leads to (Ph3M)2C(BO2C3H6)2, where the Group IV metals M may be the same of different. The series was extended to (Ph3Sn)3CBO2C3H6, but the last boron atom resisted removal. Iodination of the appropriate lithium salt intermediates yielded Ph3SnCl(BO2C3H6)2 and (Ph3Sn)2CIBO2C3H6.
丙二醇甲烷四
硼酸酯C(BO 2 C 3 H 6)4比以前使用的甲酯C [B(OMe)2 ] 4具有更好的性能,可用于合成新的四
金属
甲烷。用丁基
锂处理产生
锂盐LiC(BO 2 C 3 H 6)3,其与Ph 3 MCl反应形成Ph 3 MC(BO 2 C 3 H 6)3,其中M为Ge,Sn或Pb。重复这些过程将导致(Ph 3 M)2C(BO 2 C 3 H 6)2,其中IV族
金属M可以相同或不同。该系列扩展到(Ph 3 Sn)3 CBO 2 C 3 H 6,但是最后一个
硼原子难以去除。适当的
锂盐中间体的
碘化产生Ph 3 SnCl(BO 2 C 3 H 6)2和(Ph 3 Sn)2 CIBO 2 C 3 H 6。