Asymmetric α-2-tosylethenylation of N,N-dialkyl-<scp>l</scp>-amino acid estersvia the formation of non-racemic ammonium enolates
作者:Eiji Tayama、Tomohito Igarashi、Hajime Iwamoto、Eietsu Hasegawa
DOI:10.1039/c1ob06074k
日期:——
Asymmetric α-2-tosylethenylation of (S)-2-(pyrrolidin-1-yl)propanoic acid esters was shown to produce good yields with high enantioselectivities. The reaction proceeds via the formation of a non-racemic ammonium enolate without an external source of chirality.
不对称α-2-托索乙烯化(S)-2-(吡咯烷-1-基)丙酸酯显示出良好的产率和高的对映选择性。该反应通过形成非外消旋的铵烯醇盐进行,而无需外源性的手性。