Diastereoselective radical addition to dehydroalanine derivatives of pantolactone
作者:Anne-Marie Yim、Yves Vidal、Philippe Viallefont、Jean Martinez
DOI:10.1016/s0957-4166(02)00135-0
日期:2002.4
The diastereoselective synthesis of α-amino acids by radical addition to dehydroalanine derivatives of pantolactone using the stannane method both in the presence and absence of Lewis acid catalysts is reported. The absolute configuration of the newly-generated stereogenic center is highly dependent on the nature of the added radical. Acid hydrolysis afforded the amino acids with excellent yields and
据报道,在存在和不存在路易斯酸催化剂的情况下,通过使用锡烷方法将泛内酯的脱氢丙氨酸衍生物自由基加成,可进行非对映选择性合成α-氨基酸。新生立体中心的绝对构型高度依赖于所添加基团的性质。酸水解提供了具有优异收率且没有外消旋作用的氨基酸。该方法构成了通过自由基途径不对称合成α-氨基酸的新方法。