Synthesis 2007(19): 2957-2966  
DOI: 10.1055/s-2007-983891
PAPER
© Georg Thieme Verlag Stuttgart · New York

β-Oxo Amides: Inexpensive and Efficient Ligands for the Palladium-Catalyzed Suzuki-Miyaura Cross-Coupling Reaction

Jin-Heng Li*, Yue-Hua Zhang, Ren-Jie Song, Ye-Xiang Xie, Chen-Liang Deng, Yun Liang
Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P. R. of China
Fax: +86(731)8872531; e-Mail: jhli@hunnu.edu.cn;
Further Information

Publication History

Received 11 May 2007
Publication Date:
11 September 2007 (online)

Abstract

β-Oxo amides were found to be inexpensive and efficient ligands for the palladium-catalyzed Suzuki-Miyaura cross-coupling reaction. In the presence of palladium(II) acetate and N-(4-methoxyphenyl)-3-oxobutanamide (L7), a variety of aryl halides, including deactivated aryl chlorides and heteroaryl halides, were successfully coupled to arylboronic acids in moderate to excellent yields providing very high turnover numbers (maximum TON <950,000 and TOF <79,167). It is noteworthy that the reaction is conducted under mild and aerobic conditions.