Ghosh A K, Matsuda H
Department of Chemistry, University of Illinois at Chicago 60607, USA.
Org Lett. 1999 Dec 30;1(13):2157-9. doi: 10.1021/ol990346i.
[formula: see text] Platinum and palladium chiral bisphosphine complexes and their counterion effects in asymmetric Diels-Alder reactions have been investigated. The reaction of cyclopentadiene and various bidentate dienophiles in the presence of a catalytic amount of Pt(II)- or Pd(II)-BINAP complex proceeds with excellent endo/exo selectivity as well as endo enantioselectivity (up to 99% ee).
[化学式：见正文] 已对铂和钯手性双膦配合物及其在不对称狄尔斯-阿尔德反应中的抗衡离子效应进行了研究。在催化量的Pt(II)-或Pd(II)-联萘酚膦（BINAP）配合物存在下，环戊二烯与各种双齿亲双烯体的反应以优异的内型/外型选择性以及内型对映选择性（高达99% 对映体过量）进行。
