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 39 g of Wolfatit OK 80 cation exchanger is heated to 118° to 124° C. for 15 h. The cation exchanger is removed from the hot reaction mixture by filtration. After cooling the mixture, filtration of the crystals and their washing with water, 56.5 g of cinnamic acid is obtained. Condensation of the filtrate followed by filtration of the crystals gives another 9.5 g of cinnamic acid with total yield of 89% (melting point after recrystallization 128° to 135° C., min. 98% purity).

Provenance & Evidence