Acetic Acid → 2-Propenoic acid, 3-phenyl-

Participants

Reaction Steps

A mixture of 129 g of 1,1,1,3-tetrachloro-3-phenylpropane, 74 g of glacial acetic acid, and 31 g of monohydrate of p-toluenesulphonic acid is heated while stirring to the boiling point 115° to 120° C. for 13 h with gradual addition of 18 g of water. The precipitated crystals are filtered off, washed with water, to give 59 g of cinnamic acid. Then, the filtrate, is condensed, crystals are filtered off and washed with water to give another 11 g of cinnamic acid with the total yield of 94.5% (melting point 131° to 133° C., min. 98% purity).

Provenance & Evidence