Gold(I) can exhibit a cooperative effect with triphenylphosphine, accelerating the triphenylphosphine-mediated partial hydrogenation of activated alkynes. In this protocol, 3-arylpropiolates are selectively reduced to the Z-isomer when the aryl ring bears an electron-donor substituent, whereas 3-arylpropynones are reduced to the E-isomers.

中文翻译：

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三苯基膦介导的活化炔烃的金催化部分加氢

金（I）可以显示出与三苯基膦的协同作用，从而加速了三苯基膦介导的活化炔烃的部分氢化。在该方案中，当芳基环带有电子给体取代基时，3-芳基丙酸酯被选择性地还原为Z-异构体，而3-芳基丙炔酮被还原为E-异构体。