Palladium-Catalyzed Decarboxylative Couplings of 2-(2-Azaaryl)acetates with Aryl Halides and Triflates
作者:Rui Shang、Zhi-Wei Yang、Yan Wang、Song-Lin Zhang、Lei Liu
DOI:10.1021/ja107103b
日期:2010.10.20
Pd-catalyzed decarboxylative cross-couplings of 2-(2-azaaryl)acetates with aryl halides and triflates have been discovered. This reaction is potentially useful for the synthesis of some functionalized pyridines, quinolines, pyrazines, benzoxazoles, and benzothiazoles. Theoretical analysis shows that the nitrogen atom at the 2-position of the heteroaromatics directly coordinates to Pd(II) in the decarboxylation
已发现 Pd 催化的 2-(2-氮杂芳基) 乙酸酯与芳基卤化物和三氟甲磺酸酯的脱羧交叉偶联。该反应可用于合成一些官能化的吡啶、喹啉、吡嗪、苯并恶唑和苯并噻唑。理论分析表明,杂芳烃 2 位的氮原子直接与脱羧过渡态的 Pd(II) 配位。