The palladium/copper-cocatalyzed sila-Sonogashira cross-coupling reactions of activated aryl chlorides with alkynylsilanes under strictly nonbasic conditions yield the unsymmetrical diarylethynes in moderate to good yields.
钯/
铜共催化的活化芳香
氯与炔基
硅烷在严格非碱性条件下进行的
硅-Sonogashira交叉偶联反应,得到的不对称二芳基
乙炔的产率中等到良好。