Diastereoselective formation of a dipalladium(i) complex supported by a bridging tetradentate ligand, and oxidative addition of RS–H across a phosphine-bridged PdI–PdI bondElectronic supplementary information (ESI) available: full synthetic methods and characterisation data for compound 1 and the 2a–2f salts. See http://www.rsc.org/suppdata/cc/b3/b300177f/

Abstract

The ligand CH2(P(o-C6H4NMe2)2)2 (dmapm) gives access to the first example of a dipalladium(I) complex supported by a tetradentate ligand, Pd2Cl2(mu-N,P,P,N-dmapm), which, unlike the well-known Pd2X2(mu-dppm)2 complexes (X = halide, dppm = bis(diphenylphosphino)methane), reacts with thiols to give addition of RS-H across a phosphine-bridged Pd-Pd bond.