Palladium-Catalyzed Cross-Coupling of Electron-Poor Terminal Alkynes with Arylboronic Acids under Ligand-Free and Aerobic Conditions
作者:Ming-Bo Zhou、Wen-Ting Wei、Ye-Xiang Xie、Yong Lei、Jin-Heng Li
DOI:10.1021/jo101063p
日期:2010.8.20
Palladium-catalyzed cross-coupling reaction of terminal alkynes with arylboronicacids has been described. In the presence of Pd(OAc)2 and Ag2O, a variety of terminal alkynes, including electron-poor terminal alkynes, smoothly underwent the reaction with numerous boronic acids to afford the corresponding internal alkynes in moderate to good yields. Moreover, this methodology was applied to the synthesis
Efficient Palladium-Catalyzed Suzuki-Miyaura Cross-Coupling of Iodoethynes with Arylboronic Acids under Aerobic Conditions
作者:Jian-Sheng Tang、Jin-Heng Li、Ye-Xiang Xie、Zhi-Qiang Wang
DOI:10.1055/s-0030-1260126
日期:2011.9
iodoethynes with arylboronicacidsunderaerobicconditions has been developed. In the presence of palladium(II) acetate and cesium carbonate, a variety of iodoethynes underwent the Suzuki-Miyaura cross-coupling reaction with arylboronicacids at room temperature to afford the corresponding internal alkynes in moderate to good yields. It is noteworthy that this protocol proceeds under mild and aerobic conditions