Dehmlow, Eckehard V.; Sleegers, Arthur, Liebigs Annalen der Chemie, 1992, # 9, p. 953 - 960
作者:Dehmlow, Eckehard V.、Sleegers, Arthur
DOI:——
日期:——
Suzuki–Miyaura Cross-Coupling of 2-Pyridyl Trimethylammonium Salts by N–C Activation Catalyzed by Air- and Moisture-Stable Pd–NHC Precatalysts: Application to the Discovery of Agrochemicals
cross-coupling of 2-pyridyl ammonium salts by highly selective N–C activation catalyzed by air- and moisture-stable Pd(II)–NHC (NHC = N-heterocycliccarbene) precatalysts. The use of well-defined and highly reactive [Pd(IPr)(3-CF3-An)Cl2] (An = aniline) or [Pd(IPr)(cin)Cl] (cin = cinnamyl) Pd(II)–NHC catalysts permits an exceptionally broad scope of the cross-coupling to furnish valuable biaryl and heterobiarylpyridines