反应详情

Tributyltin hydride (37.8 g, 130 mmol) was added at reflux to a 500 ml of flask charged with benzene (200 mL) was added Z-dehydro-Ala-OH (15 g, 64 mmol), 1-methylcyclopentanylbromide (20.5 g) and AIBN (1.9 g). After 2 h, the solvent was removed and the residue was purified by column chromatograph to yield 7.9 g of 2-benzyloxycarbonylamino-3-(1-methylcyclopentyl)-propionic acid methyl ester.

1. temperatureat reflux to a 500 ml of flask
2. customthe solvent was removed
3. customthe residue was purified by column chromatograph