中文摘要：

发展了一个无配体钯催化芳基三氟硼酸钾的Suzuki反应体系.该体系在空气条件下,以醋酸钯为催化剂,1equiv.的无水碳酸钾为碱,在乙醇水溶液中可高效催化卤代芳烃或杂环卤代芳烃与芳基三氟硼酸钾的Suzuki反应,周转频率（TOF）值最高达4656 h~（-1）,且该体系还适用于三苯胺衍生物的合成.透射电镜分析结果及汞中毒实验证明该体系的实际催化物质为原位生成的纳米钯粒子.

英文摘要：

A simple and ligand-free protocol has been developed for the Pd（OAc）_2-catalyzed Suzuki reaction of potassium aryltrifluoroborates in aqueous ethanol under air. In the presence of Pd（OAc）_2 and 1 equiv. of K_2CO_3, aryl or heteroaryl halides coupled with various potassium aryltrifluoroborates smoothly to afford the products in high yields with the highest turnover frequency（TOF） up to 4656 h~（-1）, and a series of triphenylamine derivatives were prepared efficiently in this system. In addition, the active catalyst was proved to be the in situ-generated palladium nanoparticles according to TEM analysis and mercury-poisoning test.