NEW METHODS FOR THE SYNTHESIS OF ARPDL(2)I (L EQUALS TERTIARY PHOSPHINE) COMPLEXES

Organopalladium ArPdL(2)I (L = tertiary phosphine) complexes (1) can b e synthesized in one step from the precursors Pd-2(dba)(3) . C6H6 (2) (dba = t,t-dibenzylideneacetone) and (eta(3)-allyl)PdCp (3) (Cp = eta( 5)-cyclopentadienide). Two advantages over previous synthetic methods are that-this route requires only stoichiometric amounts of phosphine and that the desired complexes are easily isolated fi om reaction bypr oducts. The scope and generality of these reactions are investigated, and the synthesis of a number of new organic- and water-soluble comple xes utilizing this methodology is discussed. Improved syntheses of wat er-soluble ligands P(C6H5)(2)(4-SO3KC6H4) (5) and As(C6H5)(2)(4-SO3KC6 H4) (6) are presented as well.