Since earlier work on the use of arenediazonium tetrafluoroborates under gold-photoredox co-catalyzed activation of alkynes has been developed using Ar₃PAuCl salts, we focused on modifying the gold precatalyst. The use of the gold complex [Ph₃PAuNTf₂] allowed for a direct alkoxyarylation of alkynes to form enol ethers in a stereoselective manner, instead of the previously obtained ketones. The synthetic utility of these enol ethers was demonstrated with the controlled preparation of deuterated ketones and fluorinated ketals. Additionally, the mechanism of this alkoxyarylation variant has been explored with density functional theory (DFT) calculations.

自从使用Ar ₃ PAuCl盐开发了在金光氧化还原共催化的炔烃活化条件下使用四氟硼酸壬二唑鎓的早期工作以来，我们就致力于修饰金的预催化剂。金络合物[Ph ₃ PAuNTf ₂ ]的使用允许炔烃以立体选择性方式直接烷氧基化以形成烯醇醚，而不是先前获得的酮。这些烯醇醚的合成效用通过氘代酮和氟化缩酮的受控制备得到证明。此外，已经通过密度泛函理论（DFT）计算来探索这种烷氧基化变体的机理。