Hydrochloric Acid → HCID 291866, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of cyano acetic acid in 200 ml of 10% aqueous potassium hydroxide was added trans-cinnamaldehyde (26 g). The mixture was stirred at 35° C. for 2 hrs. and acidified with 100 ml of conc. hydrochloric acid. The solid was collected and washed to yield 2-cyano-5-phenyl-2,4-pentadienoic acid (36 g, 90% yield), m.p. 196° C. Recrystallized from ethanol yielded pure product, m.p. 211° C.

Provenance & Evidence