基于甲巯咪唑的双联双环[3.3.0]硼杂ruthenaboratranes。

Methimazolyl based diptych bicyclo-[3.3.0]-ruthenaboratranes.

机构信息

Research School of Chemistry, Australian National University, Acton, Canberra, A.C.T., Australia.

出版信息

Dalton Trans. 2019 Feb 5;48(6):1976-1992. doi: 10.1039/c8dt04813d.

Abstract

The reactions of [RuCl(R)(CO)(PPh3)2] (R = CH[double bond, length as m-dash]CHPh, Ph) with Na[H2B(mt)2] (mt = N-methyl-2-mercaptoimidazolyl) transiently provide [Ru(R)(CO)(PPh3){κ3-H,S,S'-H2B(mt)2}] which each evolve to the ruthenaboratrane Ru(CO)(PPh3)2{κ3-B,S,S'-BH(mt)2}8. The phosphine ligands may be selectively replaced to provide the complexes [Ru(CO)(L)(PPh3){κ3-B,S,S'-BH(mt)2}] (L = CO, PMe2Ph) and [Ru(CO)L2{κ3-B,S,S'-BH(mt)2}] (L = PMe2Ph, P(OMe)3, L2 = Z-Ph2PCH[double bond, length as m-dash]CHPPh2) with, in each case, retention of the ruthenium-boron dative bond.

摘要

[RuCl(R)(CO)(PPh3)2]（R=CH[双键，长度为破折号]CHPh，Ph）与 Na[H2B(mt)2]（mt=N-甲基-2-巯基咪唑基）反应会瞬间生成[Ru(R)(CO)(PPh3){κ3-H,S,S'-H2B(mt)2}]，每个分子都会进一步转化为Ru(CO)(PPh3)2{κ3-B,S,S'-BH(mt)2}8 的钌硼烷。该反应中的膦配体可以被选择性取代，得到[Ru(CO)(L)(PPh3){κ3-B,S,S'-BH(mt)2}]（L=CO，PMe2Ph）和[Ru(CO)L2{κ3-B,S,S'-BH(mt)2}]（L=PMe2Ph，P(OMe)3，L2=Z-Ph2PCH[双键，长度为破折号]CHPPh2）等配合物，其中每个分子都保留了钌-硼配位键。