15458-91-0Relevant academic research and scientific papers
Selective homo- And cross-desilacoupling of aryl and benzyl primary silanes catalyzed by a barium complex
Cheng, Jianhua,Liu, Zhizhou,Shi, Xianghui
, p. 8340 - 8346 (2020/07/07)
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. This journal is
Five-coordinate potassium dihydridosilicates: synthesis and some aspects of their reactivity
Becker, B.,Corriu, R. J. P.,Guerin, C.,Henner, B.,Wang, Q.
, p. C25 - C28 (2007/10/02)
Five-coordinate potassium dihydridosilicates, K+- (R = Et, i-Pr) have been obtained by reaction of a trialkoxysilane with potassium hydride.Reaction of the dihydridosilicate with an excess of a Grignard reagent gives the corresponding diorganosilane.The ease of reduction of carbonyl compounds by the dihydridosilicate in the absence of a catalyst is indicative of the high reactivity of the Si-H bond in such species.
Hypervalent silicon hydrides: evidence for their intermediacy in the exchange reactions of di- and tri-hydrogenosilanes catalysed by hydrides (NaH, KH and LiAlH4)
Becker, B.,Corriu, R. J. P.,Guerin, C.,Henner, B. J. L.
, p. 147 - 154 (2007/10/02)
Di and tri-hydrogenosilanes, RR'SiH2 and RSiH3 (R=aryl, allyl or benzyl; R'=aryl or alkyl), readily undergo exchange reactions, involving silicon-carbon bonds and silicon-hydrogen bonds, in the presence of hydrides (LiAlH4, KH and NaH) as catalysts.These results are discussed in terms of five-coordinate silicon hydrides as intermediates in the reaction.
