First microwave-assisted synthesis of an electron-rich phosphane and its coordination chemistry with platinum(II) and palladium(II)
摘要:
The P-O ligand 3-(di(2-methoxyphenyl)phosphanyl) propionic acid (HL) was synthesized by a microwave-assisted reaction of a secondary phosphane. The coordination of HL to Pt-II yielded the neutral mononuclear complex trans-[PtCl(kappa(2)-P,O-L)(kappa-P-HL)] (1), while the reaction of PdClMe(eta(4)-COD) (COD = 1,4-cyclooctadiene) with HL in the presence of NEt3 gave the anionic Pd-II compound of the formula (HNEt3)[PdClMe(kappa(2)-P,O-L)] (2). Upon crystallization of the latter compound the neutral chloridebridged dimetallic compound cis-[Pd(mu-Cl)Me(HL)](2) (3) was obtained. HL, 1 and 3 center dot CH2Cl2 have been characterized by single crystal X-ray structure analyses. (C) 2011 Elsevier B.V. All rights reserved.