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An Alternative Synthesis of [Pd2Cl2(?-dmpm)2]

1992; Wiley; Volume: 334; Issue: 1 Linguagem: Inglês

10.1002/prac.19923340106

0941-1216

Julian A. Davies, Sylvain G. Dutremez, M. Vilmer,

Synthetic Organic Chemistry Methods

A new, high yield synthesis of [Pd2Cl2(m̈-dmpm)2] (dmpm = bis(dimethylphosphino)methane), which avoids the use of the ill-defined, polymeric substance [PdCl(CO)]n as a starting material, is described. The procedure involves ligand metathesis of [Pd2Cl2(m̈-dppm)2] (dppm = bis(diphenylphosphino) methane) with dmpm using a solvent in which both [Pd2Cl2(m̈-dppm)2] and [Pd2Cl2(m̈-dmpm)2] are only sparingly soluble. Yields of > 98% are routinely obtained.