Synthesis of a new family of water-soluble tertiary phosphine ligands and of their rhodium(I) complexes; olefin hydrogenation in aqueous and biphasic media
作者:Eric Ranaud、Robert B. Russell、Suzanne Fortier、Stephen J. Brown、Michael C. Baird
DOI:10.1016/0022-328x(91)80253-g
日期:1991.1
respectively, have been prepared and characterized. The ligands react with [NBDRhCl]2 (NBD = norbornadiene) to form the complexes [NBDRhCl(n-phosphos)]X, one of which, [NBDRhCl(II-phosphos)]PF6, has been characterized crystallographically. The 1:1 complexes [NBDRhCl(n-phosphos)]X react with a second equivalent of ligand to form the complexes [NBDRh(n-phosphos)2]X, which form very active olefin hydrogenation
该系列鏻膦[PH 2 P(CH 2)Ñ PME 3 ] X(Ñ = 2,3,6,10; X = NO - 3,氯-,PF - 6),从此II-,III-,分别制备了VI-和X-磷酸基团并进行了表征。配体与[NBDRhCl] 2(NBD =降冰片二烯)反应形成络合物[NBDRhCl(n-磷酸)] X,其中[NBDRhCl(II-磷酸)] PF 6的结晶已被表征。1:1配合物[NBDRhCl(n-磷酸)] X与第二当量的配体反应形成配合物[NBDRh(n -phosphos )2 ] X,在水性和水性-有机双相体系中形成非常活泼的烯烃加氢催化剂。链长对活性的影响非常显着,VI-磷的络合物形成了活性最高的催化剂。