Triphenylphosphine → HCID 20274896, compound

Participants

Reaction Steps

A solution of 11.6 g of triphenylphosphine in 20 ml of ethyl acetate was placed in a sulphonation flask under argon gasification and treated at room temperature within 10 minutes with a solution of 7.5 g of 4-(bromomethyl)-4'-pentylbiphenyl in 15 ml of ethyl acetate. The reaction mixture was subsequently stirred at room temperature for a further 18 hours and then the separated Wittig salt was filtered off, washed with ethyl acetate and dried at 50° C./12 Torr up to constant weight. There were obtained 7.6 g (56%) of (4'-pentyl-4-biphenylyl)methyl-triphenylphosphonium bromide as a colourless powder of melting point 202°-204° C. From the filtrate, concentrated to 50 ml, there could be isolated a further 3.3 g (24%) of the bromide of melting point 202°-204.5° C.

Provenance & Evidence