An efficient and new protocol for phosphine-free Suzuki coupling reaction using palladium-encapsulated and air-stable MIDA boronates in an aqueous medium
Phosphine-Free Suzuki Cross-Coupling Reaction Using an Efficient and Reusable Pd Catalyst in an Aqueous Medium Under Microwave Irradiation
作者:Joaquim F. M. da Silva、Andres F. Yepes Perez、Natália P. de Almeida
DOI:10.1080/00397911.2015.1057289
日期:2015.9.2
Abstract We report here an improved, highly efficient, and general method for the ligand-free Suzuki cross-couplingreaction to the synthesis of biaryls, bipyridyls, thienylpyridine, and allylphenols. Microwaveirradiation of (het)aryl halides and (hetaryl, allyl)arylboronic acid N-methyl-iminodiacetic acid (MIDA) ester, using polyurea microencapsulated palladium catalyst (Pd EnCat 30), gave the coupling