Trichlorosilane → Nonafluorohexyltrichlorosilane

Participants

Reaction Conditions

Reaction Steps

123 g (0.5 mol) of 3,3,4,4,5,5,6,6,6-nonafluorohexene and 76 g (0.5 mol) of trichlorosilane together with 0.34 g of CPC 072 (Pt(0)-divinyltetramethyldisiloxane in xylene; concentration Pt:3,3,4,4,5,5,6,6,6-nonafluorohexene=1:20,000) are charged to a 250 ml laboratory steel autoclave. The autoclave is closed and heated to 140° C. in an oil bath over 70 minutes. The exothermic reaction begins after about 8 minutes, the reaction mixture rising to 165° C. It is subsequently cooled, the reactor is emptied, and short-path distillation gives 176 g (0.46 mol) of 3,3,4,4,5,5,6,6,6-nonafluorohexyltrichlorosilane (yield: 90%, purity: >98 area % GC-TCD).

Provenance & Evidence