Five-coordinate potassium dihydridosilicates: synthesis and some aspects of their reactivity

Article abstract of DOI:10.1016/0022-328X(89)85321-5

Five-coordinate potassium dihydridosilicates, K^+- (R = Et, i-Pr) have been obtained by reaction of a trialkoxysilane with potassium hydride.Reaction of the dihydridosilicate with an excess of a Grignard reagent gives the corresponding diorganosilane.The ease of reduction of carbonyl compounds by the dihydridosilicate in the absence of a catalyst is indicative of the high reactivity of the Si-H bond in such species.