Highly Selective Synthesis of Hydrosiloxanes by Au-Catalyzed Dehydrogenative Cross-Coupling Reaction of Silanols with Hydrosilanes

被引：47

作者：

Satoh, Yasushi ^{[1
]}

Igarashi, Masayasu ^{[1
]}

Sato, Kazuhiko ^{[1
]}

Shimada, Shigeru ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Interdisciplinary Res Ctr Catalyt Chem, 1-1-1 Higashi, Tsukuba, Ibaraki 3058565, Japan

来源：

ACS CATALYSIS | 2017年 / 7卷 / 03期

关键词：

Hydrosiloxanes; Hydrosilanes; Silanols; Au-Catalyst; Cross-Coupling; C-H BONDS; ALKOXYSILOXANE OLIGOMERS; UNSYMMETRICAL SILOXANES; HYDROSILYLATION; SILYLATION; COMPLEXES; GOLD; REDUCTION; TRANSISTORS; HALOSILANES;

D O I：

10.1021/acscatal.6b03560

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：

We report a highly selective synthesis of siloxane building blocks containing SiH2 or SiH functionalities. AuCl-(PPh3)/PPh3 or AuCl(PPh3)/(PBu3)-Bu-n system catalyzed the reaction of trihydrosilanes with silanols giving SiHrcontaining siloxanes exclusively. On the other hand, a highly selective reaction of dihydrosilanes with silanols to afford SiH-containing siloxanes was achieved by simply changing the phosphine ligand to a bidentate one, xantphos. Usefulness of SiH2-containing siloxanes was demonstrated by the synthesis of a trisiloxane, Et3SiOSi(Ph)(H)(OSiBuMe2)-Bu-t, and a pentasiloxane, Ph2Si-(OSiHPhOSiEt3)(2,) bearing SiH functionalities.

引用

页码：1836 / 1840

页数：5

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