Synthesis of Chiral γ-Amino-β-hydroxyphosphonate Derivatives from Unsaturated Phosphonates
作者:Tsutomu Yokomatsu、Takehiro Yamagishi、Keiichi Fujii、Shiroshi Shibuya
DOI:10.1055/s-2004-834792
日期:——
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。