Following an ISES Lead: The First Examples of Asymmetric Ni(0)-Mediated Allylic Amination
作者:David B. Berkowitz、Gourhari Maiti
DOI:10.1021/ol049159x
日期:2004.8.1
phosphines could promote Ni(0)-mediated allylic amination. Therefore, bidentate phosphines bearing central, axial, and planar chirality were examined with two model substrates of interest for PLP-enzyme inhibitor synthesis. In the best case, with (R)-MeO-BIPHEP, vinylglycinol derivative 2 was obtained in 75% ee (97% ee, one recrystallization) from 1. Further manipulation provided a Ni(0)-mediated entry into
ISES(原位酶筛选)负责人指出,手性双齿膦可以促进 Ni(0) 介导的烯丙基胺化的条件(PMP N 保护基、Ni(cod)(2) 催化剂前体)。因此,用 PLP 酶抑制剂合成的两种感兴趣的模型底物检查了具有中心、轴向和平面手性的双齿膦。在最好的情况下,使用 (R)-MeO-BIPHEP,从 1 中获得乙烯基甘氨醇衍生物 2,其含量为 75% ee(97% ee,一次重结晶)。进一步操作提供了 Ni(0) 介导的进入 L-乙烯基甘氨酸的过程。 [反应:见正文]