Styrene → 1,4-Diphenyl-1,3-butadiene

Participants

Reaction Steps

The procedure described in Example 1 is followed, except that 16.7 g (0.1 mol) of cinnamyl chloride, 13.0 g (0.125 mol) of styrene, 23.3 g (0.125 mol) of tri-n-butylamine, 100 ml of chlorobenzene and 0.225 g (0.001 mol) of palladium acetate are used. After a reaction time of 5 hours at a bath temperature of 140° C., 5.7 g (0.0277 mol) of 1,4-diphenyl-1,3-butadiene, corresponding to a yield of 27.7% of theory, are obtained; melting point 150°-152° C.

Provenance & Evidence