钯
化学
钳子运动
肟
螯合作用
药物化学
立体化学
高分子化学
有机化学
催化作用
作者
Jordan K. Pierce,Emily A. McEachern,Fengrui Qu,Logan M. Whitt,Ken Belmore,Kevin H. Shaughnessy
出处
期刊:Organometallics
[American Chemical Society]
日期:2024-03-27
卷期号:43 (7): 737-745
标识
DOI:10.1021/acs.organomet.3c00526
摘要
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.
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