Coordinating Anions: (Phosphino)tetraphenylborate Ligands as New Reagents for Synthesis
作者:Christine M. Thomas、Jonas C. Peters
DOI:10.1021/ic0350234
日期:2004.1.1
Anionic, electron-releasing phosphines that incorporate a borate counteranion within the ligand framework are promising reagents for organometallic catalysis. This report describes the synthesis of a new class of monodentate tertiary phosphines built upon the commonly employed tetraphenylborate anion. These new phosphines are highly stable and strongly electron-releasing and readily coordinate transition metals. Moreover, they are promising reagents for catalysis, as demonstrated by their ability to promote the Suzuki cross-coupling of aryl chloride substrates.