REACTIONS OF TETRAMESITYLDISILENE WITH ACID-CHLORIDES AND KETENES

被引：22

作者：

FANTA, AD ^{[1
]}

BELZNER, J ^{[1
]}

POWELL, DR ^{[1
]}

WEST, R ^{[1
]}

机构：

[1] UNIV WISCONSIN,DEPT CHEM,MADISON,WI 53706

来源：

ORGANOMETALLICS | 1993年 / 12卷 / 06期

关键词：

D O I：

10.1021/om00030a029

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Tetramesityldisilene(1) reacts with dimethylketene and diphenylketene by [2+2] cycloaddition to the carbonyl group to give 3-methylidene-1,2-disilaoxetanes, 4b and 4c. Acetyl and dimethylacetyl chlorides react with 1 with elimination of HCI to give similar products, 4a and 4b, along with 1,1,2,2-tetramesityl-1-chlorodisilane (3). Nonenolizable acid chlorides react variously with 1: Heptafluorobutyryl chloride gives the [2+2] cycloaddition product, 11; trimethylacetyl chloride undergoes a slow reaction to give 3 and iso-butene; 3,4,5-trimethoxylbenzoyl chloride produces 25% of a [2+4] cycloaddition product, 14. The X-ray crystal structure of 4b was determined: triclinic, P1, Z = 2, with cell dimensions a = 10.442(2) angstrom, b = 11.123(2) angstrom, c = 16.124(3) angstrom, alpha = 78.06(3)-degrees, beta = 87.93(3)-degrees, and gamma = 72.94(3)-degrees.

引用

页码：2177 / 2181

页数：5

共 23 条

[1] REACTIVE INTERMEDIATES IN THE SYNTHESIS AND CHEMISTRY OF ORGANOSILACYCLES [J].