775-56-4Relevant articles and documents
Reactivity of dichlorosilanes with lithium ester enolates: synthesis of 3,3-disubstituted 3-silaglutarates
Djerourou, Abdelhafid,Blanco, Luis
, p. 63 - 68 (1995)
3,3-Disubstituted 3-silaglutarates were synthesized by reaction of the lithium enolate of ethyl acetate with dichlorosilanes at -94 deg C.When a phenyl group is linked to the silicon atom the reaction in THF gave mainly the silaglutarate.In other cases alkylsilylketene acetals were formed in proportions similar to or greater than that of the silaglutarate.The presence of HMPA increased the ratio of C- to O-silylated products and allowed the preparation of 3,3-dialkyl 3-silaglutarates in good yield.Keywords: 3-silaglutarates; Dichlorosilanes; Lithium enolates
METHOD FOR PREPARING ARYLALKOXYSILANES BY DEHYDROGENATIVE SILYLATION
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Paragraph 0029, (2018/11/10)
Claimed is a method involving dehydrogenative silylation of aromatic compounds under Rh-catalysis to give an arylalkoxysilane. The method includes the steps of: 1) combining, under conditions appropriate to form the arylalkoxysilane, starting materials including A) an alkoxysilane having at least one silicon bonded hydrogen atom per molecule; (I) B) an aromatic compound having a carbon-hydrogen bond; and C) a rhodium bisphospholane catalyst. Additional starting materials such as D) a hydrogen acceptor and/or E) a solvent may be added during step 1). The method may further include 2) recovering the arylalkoxysilane. In a preferred embodiment the Rhodium bisphospholane catalyst is of type (II).
Selective Metal-Free Hydrosilylation of CO2Catalyzed by Triphenylborane in Highly Polar, Aprotic Solvents
Mukherjee, Debabrata,Sauer, Daniel F.,Zanardi, Alessandro,Okuda, Jun
supporting information, p. 7730 - 7733 (2016/06/09)
Triphenylborane (BPh3) in highly polar, aprotic solvents catalyzes hydrosilylation of CO2effectively under mild conditions to provide silyl formates with high chemoselectivity (>95 %) and without over-reduction. This system also promotes reductive hydrosilylation of tertiary amides as well as dehydrogenative coupling of silane with alcohols.