TANTALUM-BOROLLIDE ALKYL COMPLEXES

被引：16

作者：

BAZAN, GC

ROGRIGUEZ, G

机构：

[1] Department of Chemistry, University of Rochester, Rochester

来源：

POLYHEDRON | 1995年 / 14卷 / 01期

关键词：

D O I：

10.1016/0277-5387(94)00353-G

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of Me(3)TaCl(2) with Li-2[C4H4BN(CHMe(2))(2)] (THF) produces [eta(5)-C4H4BN(CHMe(2))(2)]Me(2)Ta[mu-eta(5)-C4H4BN(CHMe(2))(2)]TaMe(4) (1) which is an extremely deficient (24 electron) triple decker complex. Similarly, mononuclear [eta(5)-C4H4BN(CHMe(2))(2)]TaMe(3)(PMe(3)) (2) is obtained when Me(3)TaCl(2)(PMe(3)) is used as the metal source. Compound 2 undergoes clean migratory insertion chemistry with 2,6-dimethylisocyanide. The product of the reaction of 2 with three equivalents of isocyanide is the metallabicyclic complex [eta(5)-C4H4BN(CHMe(2))(2)]Ta[eta(2)-MeCN(2,6-Me(2)-C6H3)][eta(3)-(2,6-Me(2)C(6)H(3))NCHCH2C(Me)N(2,6-Me(2)-C6H3)] which has been structurally characterized.

引用

页码：93 / 102

页数：10

共 30 条

[1] PREPARATION AND REACTION CHEMISTRY OF TRIMETHYLSILYL DERIVATIVES OF TANTALUM - X-RAY STRUCTURES OF D0 (ETA-5-C5ME5)TA(SIME3)CL3 AND D1 (ETA-5-C5ME5)TA(SIME3)(PME3)CL2 [J].