Jordan K. Pierce, Emily A. McEachern, Fengrui Qu, Logan M. Whitt, Ken Belmore and Kevin H. Shaughnessy*,
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引用次数: 0
Abstract
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 complex is the first metalation of C2 of a 1,1′-(1,3-phenylene)bis(1-alkanone) dioximine. In contrast, the analogous 1,1′-(pyridine-2,6-diyl)bis(1-pentanone) dioxime (BuPydOxH2) gives the expected N,N,N-pincer complex without ligand rearrangement. Initial mechanistic studies suggest that the Beckman rearrangement of BuPhdOxH2 occurs by a process involving palladium.
期刊介绍:
Organometallics is the flagship journal of organometallic chemistry and records progress in one of the most active fields of science, bridging organic and inorganic chemistry. The journal publishes Articles, Communications, Reviews, and Tutorials (instructional overviews) that depict research on the synthesis, structure, bonding, chemical reactivity, and reaction mechanisms for a variety of applications, including catalyst design and catalytic processes; main-group, transition-metal, and lanthanide and actinide metal chemistry; synthetic aspects of polymer science and materials science; and bioorganometallic chemistry.