Room-temperature hydrosilylation of the C-F bond of vinyl fluoride catalyzed by osmium hydrides

被引：15

作者：

Renkema, KB ^{[1
]}

Werner-Zwanziger, U ^{[1
]}

Pagel, MD ^{[1
]}

Caulton, KG ^{[1
]}

机构：

[1] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2004年 / 224卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

silanolysis; fluorocarbon; osmium; hydride;

D O I：

10.1016/j.molcata.2004.07.028

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The reactions of OsH(Ph)(CO)L-2 (L = P'Bu2Me) with HSiMe3, H2SiPh3 or H3SiPh produce benzene and OsH3(silyl)(CO)L-2, which is characterized as a fac-H3OsP3 shape capped on the H-3 face by the silyl group. For H2SiPh2 and H3SiPh, these reactions are shown proceed through an intermediate Os(H)(2)(silylene)(CO)L-2 species. OsHF(CO)L-2 reacts with these silanes to give the same OsH3 product (and silyl-F). These reactions can be combined to effect osmium catalysis of conversion of Si-H + H2C=CHF to fluorosilane and H2C=CH2 from OsH3(SiMe3)(CO)L-2, or from the catalyst precursor OsHF(CO)L-2. (C) 2004 Elsevier B.V. All rights reserved.

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页码：125 / 131

页数：7

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