A Pseudodearomatized PN3P*Ni–H Complex as a Ligand and σ-Nucleophilic Catalyst

Huaifeng Li, Theo Goncalves, Jinsong Hu, Qianyi Zhao, Dirong Gong, Zhiping Lai, Zhixiang Wang, Junrong Zheng, Kuo-Wei Huang

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15 Scopus citations

Abstract

In contrast to the conventional strategy of modifying the reactivities and selectivities of the transition metal and organocatalysts by varying the steric and electronic properties of organic substituent groups, we hereby demonstrate a novel approach that the sigma (σ) nucleophilicity of the imine arm can be significantly enhanced in a pseudodearomatized PNP∗ pincer ligand platform to reach unprecedented N-heterocyclic carbene-like reactivity. Accordingly, the imine arm of the PNP∗Ni-H pincer complex efficiently catalyzes the hydrosilylation of aldehydes, cycloaddition of carbon dioxide (CO) to epoxides, and serves as a ligand in the Ru-catalyzed dehydrogenative acylation of amines with alcohols.
Original languageEnglish (US)
Pages (from-to)14969-14977
Number of pages9
JournalThe Journal of Organic Chemistry
Volume83
Issue number24
DOIs
StatePublished - Oct 24 2018

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