反应详情

A solution of 6.3 g (28.86 mmol) of t-butyl 4-phenylbut-2-enoate in 100 mL of CH2Cl2 and 30 mL of trifluoroacetic acid is stirred at 25° C. for 18 hours. The reaction is concentrated in vacuo to afford 4.67 g (99.85%) of 4-phenylbut-2-enoic acid as a yellow crystalline solid.

1. concentrationThe reaction is concentrated in vacuo