You oughta use water: Broad functional-group (FG) tolerance was observed for the title coupling of aryl halides (X = Cl, Br, I) and aryl boronic acids to give biaryl compounds with up to 94% ee. The chiral imidazoindole phosphine-palladium catalyst supported on an amphiphilic polystyrene-poly(ethylene glycol) (PS-PEG) resin could be recycled readily.

A novel rhodium-catalyzed hydrophosphination of alkynes using a silylphosphine as a phosphino group source is described. A variety of alkynes, both terminal and internal ones with aryl, alkyl, and carboxyl groups, gave the corresponding alkenylphosphines in a highly regioselective and syn-selective manner. Alkenes with an electron-withdrawing group also gave the corresponding adducts in good yields.

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