反应详情

TFA (15 mL) was added dropwise to a solution of 4-tert-butyl 1-methyl 2-(4-chlorobenzyl)succinate (1.91 g, 6.1 mmol) in DCM (30 mL) at 0° C. The reaction mixture was then warmed to room temperature and stirred for 5 hours. The reaction was then concentrated to dryness to give 3-(4-chlorobenzyl)-4-methoxy-4-oxobutanoic acid as a syrup (1.55 g, 95%), which was used without further purification.

1. concentrationThe reaction was then concentrated to dryness