METAL-VINYL VS METAL-ALKYL INSERTION REACTIONS OF TITANACYCLOBUTENES WITH NITRILES

被引：51

作者：

DOXSEE, KM

MOUSER, JKM

机构：

[1] Department of Chemistry, University of Oregon, Eugene

来源：

ORGANOMETALLICS | 1990年 / 9卷 / 12期

关键词：

D O I：

10.1021/om00162a004

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Disubstituted titanacyclobutenes, Cp2TiCR═CRCH2 (1a, R = CH3; 1b, R = CH2CH3), react with 2 equiv of nitriles under mild conditions to afford diazatitanacyclooctatrienes, resulting from nitrile insertion into both the titanium‒alkyl and titanium‒vinyl bonds of the titanacyclobutene. Hydrochlorlnation of these metal‒lacyclic products affords tetrasubstituted pyridines. Significant steric bulk in either the nitrite or the metalla-cyclobutene leads to exclusive formation of single-insertion products. © 1990, American Chemical Society. All rights reserved.

引用

页码：3012 / 3014

页数：3

共 38 条

[1]

BALABAN A, 1985, TETRAHEDRON LETT, P4669

[2] METAL-COMPLEXES OF SMALL CYCLOALKYNES AND ARYNES [J].