First gold complex-catalysed selective hydrosilylation of organic compounds

Abstract

The first examples of the hydrosilylation of organic compounds such as aldehydes and an aldimine using a catalytic amount of a gold complex, which accomplished versatile regio-and chemo-selective reduction of carbonyl compounds, are described.

Hydrosilylation of 1-hexyne promoted by acetone solvated gold atoms derived catalysts

“…A considerable number of organometallic complexes containing Pt,Pd,Ir,Ru,Rh,Ni [2] and also supported metals [3,4] have been employed as catalysts for the hydrosilylation of organic molecules, while gold has been thought to be chemically inert for long times. Only in 2000 Hosomi and co-workers [5] described the first example of silanes addition to aldehydes using a catalytic amount of a AuCl(PPh 3 ).…”

Mechanism of the Dehydrogenative Silylation of Alcohols Catalyzed by Cationic Gold Complexes: An Experimental and Theoretical Study

“…[1,2] The seminal discoveries of the very high efficiency of the hydrogenation of olefins by Au 0 in the early 1970s, [3] and of the addition of a C nucleophile to a carbonyl moiety catalyzed by a Au I complex in 1986, [4] truly launched these two parallel research domains. Since then, focusing only on homogeneous processes, very efficient and selective processes have been devised, including hydrogenation, [5] hydrosilylation, [6] or nucleophilic additions to p-systems. [1,4,7] Recently, the dehydrogenative silylation of alcohols using Au I chloride complexes was reported by Ito et al [8] In the above-mentioned processes involving "H-Y" (Y = H, BR 2 , SiR 3 ) reagents, Au À H intermediates have been postulated [5c-e, 6a, 8] in direct analogy with the same processes using other transition metals for which such M À H bonds have been observed and fully characterized.…”

Gold(I) N-heterocyclic carbene based initiators for bulk ring-opening polymerization of l-lactide

“…Only recently, the catalytic potential of gold has started to unravel, with a display of quite an impressive range of transformations emerging by the day that varies from hydroarylation [1], to C-C [2] and C-O [3] bond formations, to hydrosilylation [4], to hydroamination [5], to carbonylation of amines [6], etc. As a consequence, gold, otherwise deemed as an unreactive coinage metal with limited utility in catalysis, has received unprecedented attention of late [7].…”