反应详情

A 2.31 g portion of 4-(2-t-butoxycarbonylethyl)-benzonitrile was admixed with 3 ml of trifluoroacetic acid and 30 ml of methylene chloride. The mixture was stirred at room temperature for 13 hours and concentrated. The resulting concentrate was subjected to azeotropic distillation with use of toluene, giving 1.75 g (yield 100%) of crude 4-(2-hydroxycarbonylethyl)benzonitrile. This compound was used for the subsequent reaction without purification.

1. concentrationconcentrated
2. concentrationThe resulting concentrate
3. distillationwas subjected to azeotropic distillation with use of toluene