Asymmetric addition of α-hetero-disubstituted aldehydes to vinyl sulfones; formation of highly functionalized tetrasubstituted carbon centres
作者:Adrien Quintard、Alexandre Alexakis
DOI:10.1039/c000326c
日期:——
Aminalâpyrrolidine catalysed addition of α-hetero-disubstituted aldehydes to vinyl sulfones is described in high enantioselectivity (ee up to 97%). The obtained adducts can easily be converted to enantioenriched synthons as for example 2,2-dialkylepoxide. Evidence for a kinetic resolution is also observed.
缩醛胺-吡咯烷催化α-杂二取代醛与乙烯基砜的加成具有高对映选择性(ee 高达 97%)。获得的加合物可以容易地转化为对映体富集的合成子,例如2,2-二烷基环氧化物。还观察到了动力学拆分的证据。