Cyclopalladated Complexes with Functionalized Diphosphines via Activation of Chelated 1,1-Bis(diphenylphosphino)ethene
作者:Berta Teijido、Alberto A. Fernández、Margarita López-Torres、Antonio Suárez、José M. Vila、Roberto Mosteiro、Jesús J. Fernández
DOI:10.1021/om0106884
日期:2002.3.1
The reaction of 1 with 1,1-bis(diphenylphosphino)ethene (vdpp) gave the mononuclear cyclometalated compound 2. The withdrawing effect of the cyclopalladated moiety suffices to polarize the C=CH2 double bond to afford the addition products 3-8, by treatment of complex 2 with primary aliphatic and aromatic amines. The molecular structures of 2, 4, and 8 have been determined by X-ray crystallography, showing that the C-C distance in 4 and 8 has the expected single-bond length upon addition.