Carole William A, Bradley Jonathan, Sarwar Misbah, Colacot Thomas J
Johnson Matthey Catalysis and Chiral Technologies , 2001 Nolte Drive, West Deptford, New Jersey 08066, United States.
Johnson Matthey Technology Centre , Blounts Court Road, Sonning Common, Reading, West Berkshire RG4 9NH, United Kingdom.
Org Lett. 2015 Nov 6;17(21):5472-5. doi: 10.1021/acs.orglett.5b02835. Epub 2015 Oct 28.
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, Pd3(OAc)6, with the two impurities: Pd3(OAc)5(NO2) and polymeric [Pd(OAc)2]n in a variety of cross-coupling reactions. The solid state (13)C NMR spectra of all three compounds in conjunction with DFT calculations confirm their reported geometries.
市售醋酸钯通常含有两种主要杂质,它们的存在会影响整体催化效果。这项系统性研究比较了纯醋酸钯(Pd3(OAc)6)与两种杂质:Pd3(OAc)5(NO2) 和聚合态的[Pd(OAc)2]n在各种交叉偶联反应中的催化活性差异。这三种化合物的固态(13)C NMR光谱结合密度泛函理论(DFT)计算证实了它们已报道的几何结构。