The air-stable phosphine sulfide [(tBu)2P(S)H] serves as a ligand precursor for the efficient nickel-catalyzed cross-coupling reactions of a variety of unactivated aryl chlorides with aryl Grignard reagents (Kumada−Tamao−Corriu reaction) at room temperature to yield the corresponding biaryls with isolated product yields ranging from 79 to 97%.
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Li et al. (2002) studied this question.
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