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

被引：15
|
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
收藏
页码：6130 / 6132
页数：3
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