作者:James P. Tellam、Gabriele Kociok-Köhn、David R. Carbery
DOI:10.1021/ol802169j
日期:2008.11.20
A diastereoselective Ireland-Claisen approach to beta-alkoxy alpha-amino acid esters is reported. Amino acid esters of enol ethereal allylic alcohols undergo facile syn-selective [3,3]-sigmatropic rearrangement via silyl ketene acetals. Substrate synthesis, rearrangement development, stereoselectivity, and product elaboration are discussed.
报道了对β-烷氧基α-氨基酸酯的非对映选择性爱尔兰-克莱森方法。烯醇醚基烯丙基醇的氨基酸酯通过甲硅烷基烯酮缩醛容易地进行同位选择性[3,3]-σ重排。讨论了底物的合成,重排发展,立体选择性和产物的制备。