Reactions of element-substituted alkynes R3MCCPh (R3M = Me3Si, Et3Si, Ph3Si, Et3Ge, n-Bu3Sn, N(CH2CH2O)3Si, N(CH2CH2O)3Ge, N(CH2-CHMeO)3Ge, and N(CH2CH2O)2(CH2CHPhO)Ge) with bromine, tetra-n-butylammonium tribromide (TBAT), and N-bromosuccinimide (NBS)/DMSO were investigated. The Z,E-ratio of isomeric dibromoalkenes formed in bromination reaction with Br2 and TBAT are discussed. The crystal structures
元素取代
炔烃 R3MCCPh 的反应(R3M = Me3Si、Et3Si、Ph3Si、Et3Ge、n-Bu3Sn、N( O)3Si、N( O)3Ge、N(
CH2-CHMeO)3Ge 和 N( O)2( CHPhO) )Ge) 与
溴、四正丁基三
溴化铵 (TBAT) 和 N-
溴代琥珀
酰亚胺 (
NBS)/
DMSO 进行了研究。讨论了在与 Br2 和 TBAT 的
溴化反应中形成的异构二
溴烯烃的 Z,E 比率。N( O)3SiCPh 和 N( CHMeO)3GeX (X = C CPh, C(Br)C(Br)Ph, C(Br2)C(O)Ph) 和 Ph3SiC(Br)C(Br) 的晶体结构)Ph 被报道。© 2003 Wiley Periodicals, Inc. 15:43–56, 2004; 在线发表于 Wiley InterScience (www