1829-58-9Relevant articles and documents
Rhodium-Catalyzed Intermolecular Silylation of Csp?H by Silacyclobutanes
He, Tao,Li, Bin,Liu, Lichuan,Ma, Wenpeng,He, Wei
, p. 5648 - 5652 (2021)
The signature reactivity of silacyclobutane (SCB) is their cycloaddition reactions with various π bonds. Recently, the first cases were disclosed where SCBs reacted with both Csp2?H and Csp3?H σ bonds in an intramolecular fashion. Herein, it is reported that SCB is also an efficient reagent for Csp?H bond silylation. Thus, rhodium-catalyzed intermolecular reactions between SCBs and terminal alkynes produced a series of symmetrical and unsymmetrical tetraorganosilicons bearing a Csp?Si functionality. Preliminary studies suggested that the reaction did not involve a cycloaddition pathway, but instead a direct activation of Csp?H bonds.
Selective mono- and di-allylation and allenylation of chlorosilanes using indium
Li, Zhifang,Yang, Chenjun,Zheng, Hongfang,Qiu, Huayu,Lai, Guoqiao
scheme or table, p. 3771 - 3779 (2009/02/08)
Allyl and allenyl groups have been introduced into silicon systems by the allylation and allenylation of chlorosilanes using allyl bromide or propargyl bromide with indium. The allylation of chlorosilanes afforded a variety of aryl, aralkyl, and alkenyl substituted allylsilanes. By applying this method, the reactions of 1-bromo-3-methylbut-2-ene, 3-bromo-2-methylprop-1-ene and 3-bromobut-1-ene with chlorosilanes also proceed smoothly to give regioselectively allylic rearrangement products in good yields. Mediated by indium, dichlorosilanes (R2SiCl2) and trichlorosilanes (RSiCl3) can either afford monoallylated silanes or diallylated silanes depending on the amount of allyl bromide and indium used.
Ene cyclisations of α-(prenyl)dialkylsilyloxy aldehydes: Formation and oxidative cleavage of oxasilacyclohexanols
Robertson, Jeremy,Hall, Michael J.,Stafford, Petra M.,Green, Stuart P.
, p. 3758 - 3767 (2007/10/03)
A variety of routes are described for the synthesis of α-silyloxy aldehydes in which the silicon atom bears a prenyl side chain. These compounds are shown to undergo stereoselective carbonyl ene cyclisation under mildly Lewis acidic conditions and the der
