Methyldichlorosilane → HCID 14950709, compound

Participants

Reaction Steps

20.48 g (0.03 mol) of 8,8'-bis(diphenylphosphinylmethyl)-1,1'-binaphthyl are suspended in 75 ml of xylene and 36 ml (0.15 mol) of tri-n-butylamine in the absence of air and moisture, and 16.57 g (0.144 mol) of methyldichlorosilane are added dropwise with stirring. The mixture is then refluxed for 14 hours to give a clear solution. Xylene is distilled off at atmospheric pressure, and the mixture is allowed to cool with stirring. This results in the formation of 8,8'-bis(diphenylphosphinomethyl)-1,1'-binaphthyl as a colorless solid, which is filtered off under an inert gas and washed with 20 ml of degassed acetone. 16.7 g (87%) of colorless crystals of melting point 168° to 170° C. are obtained.

Provenance & Evidence