Selective Boryl Silyl Ether Formation in the Photoreaction of Bisboryloxide/Boroxine with Hydrosilane Catalyzed by a Transition-Metal Carbonyl Complex
作者:Masaki Ito、Masumi Itazaki、Hiroshi Nakazawa
DOI:10.1021/ja500465x
日期:2014.4.30
Selective B-O-Si bond formation was achieved in the reaction of bisboryloxide O(Bpin)(2) (pin = (OCMe2)(2))/boroxine (MeBO)(3) system with tertiary silane R3SiH in the presence of stoichiometric water and a catalytic amount of [M](CO)(5) ([M] = Mo(CO), W(CO), Fe) to give boryl silyl ethers. Moreover, this reaction can be applied to various hydrosilanes (disilyl compounds and secondary silanes) and hydrogermane. Some of the boryl silyl ethers thus formed were confirmed by X-ray analysis.
O-Metalation of silanols and POSS silanols over Amberlyst-15 catalyst: A facile route to unsymmetrical siloxanes, borasiloxanes and germasiloxanes
作者:Krzysztof Kuciński、Grzegorz Hreczycho
DOI:10.1016/j.ica.2019.03.025
日期:2019.5
A simple and highly practical Amberlyst-catalyzed direct O-metalation of silanols, POSS silanols and alkoxy-silanes under mild conditions is proposed. This protocol can be applied to the synthesis of a wide range of important organosilicon derivatives such as siloxanes, germasiloxanes, borasiloxanes and functionalized silses-quioxanes. It is worth noting that Amberlyst-15 can be reused for further experiments and its catalytic activity in this process is well-preserved for several recycling steps.