Synthesis of unsymmetrically disubstituted ethynes by the palladium/copper (I)-cocatalyzed sila-Sonogashira–Hagihara coupling reactions of alkynylsilanes with aryl …

~89%

~47%

~60%

~60%

~74%

~42%

~45%

~45%

~50%

~72%

~11%

~37%

~76%

~34%

~73%

~94%

~67%

~38%

~71%

~47%

~50%

~94%

~9%

~18%

~71%