A two-step route for introducing methyl phosphoramidate moieties onto carbohydrates is reported. The approach uses methyl pivolyl H-phosphonate as the phosphorylating reagent to produce an isolable carbohydrate H-phosphonate intermediate that is then oxidized by a Todd-Atherton reaction. The stability of the product methyl phosphoramidates was subsequently evaluated using various deprotection strategies.
A two-step route for introducing methyl phosphoramidate moieties onto carbohydrates is reported. The approach uses methyl pivolyl H-phosphonate as the phosphorylating reagent to produce an isolable carbohydrate H-phosphonate intermediate that is then oxidized by a Todd-Atherton reaction. The stability of the product methyl phosphoramidates was subsequently evaluated using various deprotection strategies.
Direct synthesis of methyl phosphoramidates in carbohydrates
作者:Vijay M. Dhurandhare、Girija Prasad Mishra、Sarah Lam、Cheng-Chung Wang
DOI:10.1039/c5ob01017a
日期:——
Direct one-step synthesis with high regioselectivity, 16 examples up to quantitative yield.