Silyl formates as hydrosilane surrogates for the transfer hydrosilylation of ketones

Abstract

A transfer hydrosilylation of ketones employing silyl formates as hydrosilanes surrogates under mild conditions is presented. A total of 24 examples of ketones have been successfully converted to their corresponding...

Formoxyboranes as hydroborane surrogates for the catalytic reduction of carbonyls through transfer hydroboration

“…[(PN(H)P)Ru(OAc) 2 ] (2a) (PN(H)P = HN–(CH 2 CH 2 P(Ph) 2 ) 2 ) was introduced as a catalyst due to its ability to promote the decarboxylation of formates and the subsequent C O bond reduction by a Ru–H intermediate. 12 The use of 2 mol% of 2a with a mixture of BBNOCHO·pyridine (1a) and acetophenone (3a) at 90 °C led to the desired borylated alcohol product 4aa in 99% yield after 4 h ( Table 1 , entry 2). Lowering the temperature from 90 to 70 °C ( Table 1 , entry 3) decreased the catalytic performance to 71% after 40 h, and no conversion was observed at room temperature ( Table 1 , entry 4).…”