反应详情

A mixture of rac.-N-(benzyloxycarbonyl)-2-(dimethoxyphosphinyl)glycine methyl ester (3.5 g, 10.56 mmol) and 10% palladium on carbon (0.5 g) in methanol (75 mL) was hydrogenated at 50 psi for 1 h. The solution was filtered through Celite® and the filtrate was concentrated and then dried under high vacuum to furnish rac.-2-(dimethoxy-phosphinyl)glycine methyl ester as an clear oil (2.0 g, 96% yield). The amine prepared in this manner was used per se in subsequent reactions.

1. filtrationThe solution was filtered through Celite®
2. concentrationthe filtrate was concentrated
3. customdried under high vacuum