NHC-catalyzed dehydrogenative self-coupling of diphenylsilane: a facile synthesis of octaphenylcyclotetra(siloxane)

被引：16

作者：

Albright, Abigail ^{[1
]}

Gawley, Robert E. ^{[1
]}

机构：

[1] Univ Arkansas, Dept Chem & Biochem, Fayetteville, AR 72701 USA

来源：

TETRAHEDRON LETTERS | 2011年 / 52卷 / 46期

基金：

美国国家科学基金会; 美国国家卫生研究院;

关键词：

Octaphenylcyclotetra(siloxane); Siloxane polymer; Molecular oxygen; NHC; HCuIPr; HETEROGENEOUS OXIDATION; HYDROLYTIC OXIDATION; MOLECULAR-OXYGEN; SILANOLS; ORGANOSILANES; METHYLTRIOXORHENIUM; COMPLEX; HYDROSILYLATION; ALKENYLSILANOLS; CARBENES;

D O I：

10.1016/j.tetlet.2011.09.028

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A unique application of the CulPr N-heterocyclic carbene (NHC) to the dehydrogenative self-coupling of diphenylsilane has been discovered. This transformation is carried out open to air at room temperature, yielding octaphenylcyclotetra(siloxane) quantitatively in 1 h. This preparation constitutes a significant improvement over existing methods for the preparation of this compound and demonstrates a novel mode of reactivity for CuIPr. The diphenylsilanone tetramer is the precursor to a number of industrially significant polymers. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：6130 / 6132

页数：3

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