In previous studies it was found that the new gold(I) complex [Au(PPO)Cl] (PPO = 1,2-bis(diphenylphosphino)benzene monoxide) catalyzes efficiently the hydration to alkynes. This study has been extended to evaluate its catalytic activity for further intermolecular hydrofunctionalization reactions and is being compared to that of other gold(I) catalysts containing phosphine and NHC ligands. The new gold(I) catalyst is highly efficient for the alkyne hydroarylation. Complete conversion of arene addition to ethyl propiolate was observed within 10 minutes at room temperature using 0.1% catalyst in combination with AgBF4 and HBF4 co-catalysts.

Evaluation of the catalytic activity of a diphosphine monoxide gold(I) complex for intermolecular alkyne hydrofunctionalization reactions

247th National Meeting (2014)

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