Yingwei Zhao and Qiuling Song
Chem. Commun., 2015,51, 13272-13274
DOI:
10.1039/C5CC04111B,
Communication
The palladium-catalyzed Sonogashira-type aerobic oxidative coupling of arylhydrazines with terminal alkynes via C–N bond cleavage has been developed; internal alkynes were afforded with a broad substrate scope. This reaction proceeds under copper- and base-free conditions with molecular oxygen as the sole oxidant and nitrogen and water as the only by-products.