F-19 NMR-STUDIES OF THE REACTION OF OCTAPHENYLCYCLOTETRASILANE WITH TRIFLIC ACID

被引：18

作者：

CHRUSCIEL, J ^{[1
]}

CYPRYK, M ^{[1
]}

FOSSUM, E ^{[1
]}

MATYJASZEWSKI, K ^{[1
]}

机构：

[1] CARNEGIE MELLON UNIV,DEPT CHEM,PITTSBURGH,PA 15213

来源：

ORGANOMETALLICS | 1992年 / 11卷 / 10期

关键词：

D O I：

10.1021/om00046a023

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The chemo- and stereoselectivity of the dearylation reaction of octaphenylcyclotetrasilane with trifluoromethanesulfonic acid was studied using F-19 NMP. Up to four triflate groups could be easily introduced to the ring. Substitution of the fifth phenyl group was accompanied by rig cleavage. Dearylation competes with the exchange of silyl triflates with triflic acid and leads to the thermodynamic distribution of stereoisomers.

引用

页码：3257 / 3262

页数：6

共 22 条

[1] CYCLIC POLYSILANES .10. GEOMETRICAL ISOMERS AND ELECTRONIC PROPERTIES OF 1,2,3,4-TETRA-T-BUTYLTETRAMETHYLCYCLOTETRASILANE [J].