Synthesis of enantiomerically pure functionalised amides (EPC-synthesis) from chiral β-aminated organolithium intermediates
作者:Francisco Foubelo、Miguel Yus
DOI:10.1016/s0040-4039(00)76980-2
日期:1994.7
n-butyllithium and lithium naphthalenide, respectively, at −78°C leads to the corresponding chiral β-aminated organolithium intermediates 2, which by reaction with different electrophiles [H2O, D2O, Me2S2, (O, ButCHO and PhCHO] yield, after hydrolysis, the corresponding enantiomerically pure compounds 3. In the case of using aldehydes as electrophilic reagents, a mixture of diastereomers are obtained, which
在-78°C下分别用正丁基锂和萘二甲酸锂连续进行手性氯酰胺1的去质子化反应,生成相应的手性β-胺化有机锂中间体2,该中间体通过与不同的亲电试剂[H 2 O,D 2 O中,Me 2小号2,(O,卜吨CHO和苯甲醛]产率,水解后,相应的对映体纯的化合物3。在使用醛作为亲电子试剂的情况下,获得了非对映异构体的混合物,其易于通过快速色谱法分离,因此对映体纯的1,3-氨基醇衍生物可通过该程序获得。