Amido-derivatives of metals and metalloids. Part X. Reactions of titanium(IV), zirconium(IV), and hafnium(IV) amides with unsaturated substrates, and some related experiments with amides of boron, silicon, germanium, and tin(IV)
作者:G. Chandra、A. D. Jenkins、M. F. Lappert、R. C. Srivastava
DOI:10.1039/j19700002550
日期:——
Insertion reactions of amides LM–(NR2)n with the dipoles AB to give the adducts LM(NR2)n – x(A–B–NR2)x are described. The amides included the Group IVA [M(NMe2)4(M = Ti, Zr, or Hf)] and IVB [Me3M·NMe2(M = Si, Ge, or Sn)] compounds and o-C6H4O2B·NEt2, while the dipoles were PhNCO, PhNCS, MeNCS, p-MeC6H4·N:C:N·C6H4Me-p, C6H11·N:C:N·C6H11, MeO2C·C:C·CO2Me, CO2, CS2, CH2:CH·CN, PhCN, p-MeC6H4·CN, CH2:CCl(CN)
描述了酰胺LM–(NR 2)n与偶极AB的插入反应,得到加合物LM(NR 2)n – x(AB–NR 2)x。酰胺包括IVA族[M(NMe 2)4(M = Ti,Zr或Hf)]和IVB [Me 3 M·NMe 2(M = Si,Ge或Sn)]化合物和o -C 6 H 4 O 2 B·NEt 2,而偶极子是PhNCO,PhNCS,MeNCS,p -MeC 6 H 4 ·N:C:N·C 6 H 4 Me-p,C 6 H 11 ·N:C:N·C 6 H 11,MeO 2 C·C:C·CO 2 Me,CO 2,CS 2,CH 2:CH·CN,PhCN,p -MeC 6 H 4 ·CN,CH 2:CCl(CN),C 6 F 5 ·CN,CCl 3 ·CN,[省略图示]和MeCH:CH·CHO。讨论的问题是反应的化学计量学,加合物的结构以及各种酰胺和偶极的相对反应性。