the coupling of electron-rich and electron-poor aryl halides with both primary and secondary alkyl amines. In this study, it is reported that a Ni(II)-bipyridine complex catalyzes efficient C–N coupling of aryl chlorides and bromides with various primary and secondary alkyl amines under direct excitation with light. Intramolecular C–N coupling is also demonstrated. The feasibility and applicability of
Can Palladium Acetate Lose Its “Saltiness”? Catalytic Activities of the Impurities in Palladium Acetate
作者:William A. Carole、Jonathan Bradley、Misbah Sarwar、Thomas J. Colacot
DOI:10.1021/acs.orglett.5b02835
日期:2015.11.6
Commercially available palladium acetate often contains two major impurities, whose presence can impact the overall catalytic efficacy. This systematic study provides a comparison of the differences in catalytic activity of pure palladium acetate, Pd-3(OAc)(6), with the two impurities: Pd-3(OAc)(6)(NO2) and polymeric [Pd(OAc)(2)](n) in a variety of cross-coupling reactions. The solid state C-13 NMR spectra of all three compounds in conjunction with DFT calculations confirm their reported geometries.
RAZZUK A.; BIEHL E., J. ORG. CHEM., 52,(1987) N 12, 2619-2622