title: Ligand-promoted oxidative cross-coupling of aryl boronic acids and aryl silanes by palladium catalysis.
abstract: The first cross-coupling reaction between aryl silanes and aryl boronic acids is described. This transformation represents one of the very few examples of coupling reactions between two nucleophilic organometallic reagents and provides a new method for the formation of biaryl compounds. The successful development of this reaction was enabled by the use of commercially available 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl (BINAP) as the ligand. A small amount of BINAP (3 mol %) was sufficient to suppress the formation of the homocoupling products, and the reaction yielded the cross-coupling products with high selectivity under mild conditions, even when the ratio of the two coupling partners was 1:1.
authors: Department of Chemistry, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, Shanghai 200092, Shanghai (P. R. China).
authors: Jingxun
authors: J
authors: Yu
authors: Jun
authors: J
authors: Liu
authors: Guangfa
authors: G
authors: Shi
authors: Changdong
authors: C
authors: Shao
authors: Yanghui
authors: Y
authors: Zhang
keywords: cross-coupling; ligands; organoboron compounds; organosilicon compounds; palladium catalysis