In the presence of GaCl3, silyl enol ethers are sequentially ethynylated at the α-carbon atom with chlorotrimethylsilylethyne giving α-enynylated, α-endiynylated and α-entriynylated ketones.
在 GaCl3 的存在下,
硅基烯醇醚依次与
氯三甲基
硅乙炔在 α 碳原子上发生
乙炔化反应,生成 α-炔化、α-二炔化和 α-三炔化酮。