Azidomethyl 4-Nitrophenyl Carbonate - A Reagent for the One-Step Introduction of the Azidomethyloxycarbonyl (Azoc) Protecting Group
作者:Clemens Richert、Andreas Kaiser
DOI:10.1055/s-0030-1258049
日期:2010.9
Presented here is the three-step synthesis of azidomethyl 4-nitrophenyl carbonate in 58% overall yield. This carbonate allows for the high-yielding (³90%) introduction of the phosphine-labile azidomethyloxycarbonyl (Azoc) protecting group in one step. The reagent protects a range of amines, including amino acids. For nonionic substrates, pure carbamates are obtained after extractive workup.