Hydrosilylation of Aldehydes Catalyed Selectively by μ-Hydroxo Organotin Dimer

Chem. J. Chinese Universities

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Hydrosilylation of Aldehydes Catalyed Selectively by μ-Hydroxo Organotin Dimer

ZHANG Zheng-Hua, XU Wei-Jian, XIONG Yuan-Qin, AN De-Lie, PENG Zhi-Hong*

College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China

Received:2007-07-17 Revised:1900-01-01 Online:2008-02-10 Published:2008-02-10
Contact: PENG Zhi-Hong

Abstract

Abstract: A kind of μ-hydroxo organotin dimmer [Bu₂Sn(OH)(OTf)(H₂O)]₂(1) was prepared from Bu₂SnO and CF₃SO₃H(TfOH), and the hydrosilylation of aldehydes catalyzed by compound 1 were studied. The conditions of hydrosilylation catalyzed by compound 1 were discussed. Compound 1 can catalyze hydrosilylation of aromatic aldehydes as well as aliphatic aldehydes without byproducts such as ether or alkyl forming. Compared with conventional Lewis acid catalysts, μ-hydroxo organotin dimer as an efficient catalyst has some merit as follow: the catalyst can be synthesized in a simple way; due to its stability in water and air, the catalyst can be saved and used conveniently; the catalyst concentration is very low and high chemoselectivity is readily attained. The hydrosilylation of aldehydes can be catalyzed exclusively but the other carbonyl compounds and some reductive groups in one molecular or in one reaction system couldn′t be catalyzed.

Key words: μ-Hydroxo organotin dimer, Selective catalyst, Aldehyde, Hydrosilylation

CLC Number:

O627.42

TrendMD:

ZHANG Zheng-Hua, XU Wei-Jian, XIONG Yuan-Qin, AN De-Lie, PENG Zhi-Hong*. Hydrosilylation of Aldehydes Catalyed Selectively by μ-Hydroxo Organotin Dimer[J]. Chem. J. Chinese Universities, doi: .

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Hydrosilylation of Aldehydes Catalyed Selectively by μ-Hydroxo Organotin Dimer

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