Catalyst-free Mannich-type reaction of 1-(N-acylamino)alkyltriphenylphosphonium salts with silyl enolates
作者:Agnieszka Październiok-Holewa、Alicja Walęcka-Kurczyk、Szymon Musioł、Sebastian Stecko
DOI:10.1016/j.tet.2018.12.042
日期:2019.2
reaction of 1-(N-acylamino)alkyltriphenylphosphonium tetrafluoroborates with silyl enolates was developed to prepare β-amino carbonyl compounds. The reported method is a useful approach for the preparation of N-protected β-amino esters as well as N-protected β-amino ketones. The starting 1-(N-acylamino)alkyltriphenylphosphonium tetrafluoroborates are readily available from N-protected α-amino acids. Therefore
开发了四氟硼酸1-(N-酰基氨基)烷基三苯基phosph与烯丙基甲硅烷基酯的无催化剂反应,以制备β-氨基羰基化合物。所报道的方法是用于制备N-保护的β-氨基酯以及N-保护的β-氨基酮的有用方法。起始的1-(N-酰基氨基)烷基三苯基phosph四氟硼酸酯可容易地从N-保护的α-氨基酸获得。因此,提出的方法可以被认为是一种新的方法,用于N-保护的α-氨基酸的α-同源制备β-氨基酸衍生物。