作者:S. M. Ibrahim Al-Rafia、Paul A. Lummis、Anindya K. Swarnakar、Kelsey C. Deutsch、Michael J. Ferguson、Robert McDonald、Eric Rivard
DOI:10.1071/ch13209
日期:——
The synthesis of a series of N-heterocyclic carbene (NHC) complexes involving zinc, cadmium, and the heavy Group 14 elements germanium, tin, and lead is reported. The direct reaction between the bulky carbene IPr (IPr = (HCNDipp)2C:, Dipp = 2,6-iPr2C6H3) and the Group 14 halide reagents GeCl4 and SnCl4 afforded the 1 : 1 complexes IPr·ECl4 (E = Ge and Sn) in high yield; similarly, ZnI2 interacted with
据报道,合成了一系列涉及锌,镉和重于14号元素的锗,锡和铅的N杂环卡宾(NHC)配合物。庞大的卡宾IPr(IPr =(HCNDipp)2 C :, Dipp = 2,6- i Pr 2 C 6 H 3)与第14组卤化物试剂GeCl 4和SnCl 4之间的直接反应得到1:1的复合物IPr ·高产的ECl 4(E = Ge和Sn);类似地,ZnI 2与IPr在THF中相互作用,得到THF结合的复合物IPr·ZnI 2 ·THF。氯化镉2进行了IPr发散化学分析,分离出的主要产物为咪唑鎓盐[IPrH] [IPr·CdCl 3 ],经Tl [OTf]处理后可以将其转化为IPr·CdCl 2 ·THF。此外,制备了稳定的Pb II酰胺加合物IPr·PbBr(NHDipp)。每个新的卡宾元素卤化物加合物都用氢化物源Li [BH 4 ]和Li [HBEt 3 ]处理,以便潜在地获得新的元素氢化物加合物和/或簇。除IPr·ZnI