反应详情

1.5 g of triester 63 (3.28 mmol) was added to 20 ml formic acid (96%) and stirred for 4 hours. After this time the formic acid was removed by azeotropic distillation with 5×20 ml portions of toluene. The crude residue was recrystallised from EtOH and petroleum spirit to give 0.9 g of off white crystals in 93% yield.

1. customAfter this time the formic acid was removed by azeotropic distillation with 5×20 ml portions of toluene
2. customThe crude residue was recrystallised from EtOH and petroleum spirit
3. customto give 0.9 g of off white crystals in 93% yield