Chirality control in 2,2′-biphosphole ligand leading to enantiopure Pd complexElectronic supplementary information (ESI) available: selected spectroscopic NMR data. See http://www.rsc.org/suppdata/cc/b3/b301613g/
作者:Carmen Ortega、Maryse Gouygou、Jean-Claude Daran
DOI:10.1039/b301613g
日期:2003.4.30
Asymmetric alkylation of the 3,4-dimethyl-5-phenyl-2,2'-biphospholyl anion with the (2R,4R)-(-)-pentaneditosylate leads to a new chirally flexible 2,2'-biphosphole ligand as a mixture of three diasteroisomers. By complexation with Pd(II), a chirality control occurs to afford enantiopure Pd complex.
3,4-二甲基-5-苯基-2,2'-联膦酰基阴离子与(2R,4R)-(-)-戊二糖基酯的不对称烷基化产生了一种新的手性灵活的2,2'-联磷酰基配体三个非对映异构体。通过与Pd(II)络合,进行手性控制,得到对映纯Pd络合物。