γ-Amino-β-hydroxyphosphonates, useful intermediates for the synthesis of phosphonic acid analogues of carnitine, were prepared as their protected derivatives in an enantioselective manner from β,γ-unsaturated phosphonates through asymmetric dihydroxylation and subsequent regioselective amination via the cyclic sulfates.
δ-
氨基δ-羟基
膦酸盐是合成肉碱的
膦酸类似物的有用中间体,本研究以δ,δ-不饱和
膦酸盐为原料,通过不对称二羟基化和随后通过环状
硫酸盐的区域选择性胺化,以对映体选择性的方式制备了δ,δ-不饱和
膦酸盐的保护衍
生物。