Chelating and Pincer Oxime Complexes of Palladium: Rearrangement of a 1,3-Diacylbenzene Dioxime upon Palladium Coordination
作者:Jordan K. Pierce、Emily A. McEachern、Fengrui Qu、Logan M. Whitt、Ken Belmore、Kevin H. Shaughnessy
DOI:10.1021/acs.organomet.3c00526
日期:2024.4.8
The synthesis and structural characterization of a series of oxime-derived palladium complexes are reported. Coordination of 2-pyridyl-1-ketoxime to palladium as a neutral ligand has been achieved. Palladation of 1,1′-(1,3-phenylene)bis(pentan-1-one) dioxime (BuPhdOxH2) resulted in the formation of an unexpected N,C,O-pincer complex through a Beckman rearrangement of one oxime group to an amide. This
报道了一系列肟衍生钯配合物的合成和结构表征。 2-吡啶基-1-酮肟与作为中性配体的钯的配位已经实现。 1,1'-(1,3-亚苯基)双(戊-1-酮)二肟 ( Bu PhdOxH 2 )的钯化导致通过一个肟的贝克曼重排形成意想不到的N,C,O -钳形复合物基团为酰胺。该配合物是 1,1'-(1,3-亚苯基)双(1-烷酮)二肟胺的 C2 的首次金属化。相比之下,类似的 1,1'-(吡啶-2,6-二基)双(1-戊酮)二肟 ( Bu PydOxH 2 ) 给出了预期的N,N,N -钳复合物,无需配体重排。初步的机理研究表明, Bu PhdOxH 2的贝克曼重排是通过涉及钯的过程发生的。