Selective homo- and cross-desilacoupling of aryl and benzyl primary silanes catalyzed by a barium complex

Dalton Transactions : an International Journal of Inorganic Chemistry
Zhizhou LiuJianhua Cheng

Abstract

Under mild conditions (25 °C, 5 mol% cat.), highly selective homo- and cross-desilacoupling of aryl and benzyl primary silanes to secondary silanes was achieved by the use of the heteroleptic barium aminobenzyl complex [(TpAd,iPr)Ba(CH2C6H4NMe2-o)] (TpAd,iPr = hydrotris(3-adamantyl-5-isopropyl-pyrazolyl)borate) (1) as a catalyst. Dihydrosilanes originating from catalytic redistribution and cross-desilacoupling reactions were isolated in fine yields, which demonstrates the feasible application of the barium complex in the syntheses of secondary aryl- and benzylsilanes.

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Methods Mentioned

BETA
1
H
NMR
chips
column chromatography

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