作者:Masashi Sugiya、Hiroyuki Nohira
DOI:10.1246/bcsj.73.705
日期:2000.3
Optically pure bisphosphine oxides were conveniently synthesized by Kolbe electrolytic coupling reaction of carboxylic acids possessing a chiral phosphinoyl group in 60—65% isolated yield. This synthetic approach provides a variety of accesses to P-chiral bisphosphine ligands. Their absolute configurations were intercorrelated with that of the previous reported BisP*-borane. Asymmetric hydrogenation
通过具有手性膦酰基的羧酸的 Kolbe 电解偶联反应,以 60-65% 的分离产率方便地合成了光学纯的双膦氧化物。这种合成方法为 P-手性双膦配体提供了多种途径。它们的绝对构型与先前报道的 BisP*-硼烷的绝对构型相互关联。通过铑与 BisP*(R = t-辛基或 1,1,3,3-四甲基丁基)络合物对 α-(酰基氨基)丙烯酸进行不对称氢化,得到 94-96% ee 的 N-酰基氨基酸。