An efficient synthesis of biaryls(diarenes) from aryl chlorides has been developed and investigated. The coupling reagent is a catalytic mixture of anhydrous nickel salt and triphenylphosphine in the presence of a reducing metal(Mn, Ca, Na, Fe, Na). T...
An efficient synthesis of biaryls(diarenes) from aryl chlorides has been developed and investigated. The coupling reagent is a catalytic mixture of anhydrous nickel salt and triphenylphosphine in the presence of a reducing metal(Mn, Ca, Na, Fe, Na). The reaction occurs rapidly under mild conditions, employs air-stable starting meterials, and can be run conveniently in ordinary laboratory glassware. Excess reducing metal drives the coupling procress and allows even aryl chlorides to be coupled to high yields