Dihydrogen activation by intermolecular rare-earth aryloxide/N-heterocyclic carbene Lewis pairs

Kejian Chang; Yifan Dong; Xin Xu

doi:10.1039/C9CC06676D

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Dihydrogen activation by intermolecular rare-earth aryloxide/N-heterocyclic carbene Lewis pairs†

Kejian Chang,^a Yifan Dong^a and Xin Xu

*^a

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* Corresponding authors

^a Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
E-mail: xinxu@suda.edu.cn

Abstract

Dihydrogen was readily activated by combination of homoleptic rare-earth metal aryloxides, RE(OAr)₃ (RE = La, Sm, and Y) with N-heterocyclic carbenes (NHCs) under mild conditions. RE(OAr)₃ were found to be active catalysts for the reductive hydrogenation of NHCs to aminals under 1 bar of H₂. In addition, the La/NHC pair also exhibited frustrated Lewis pair (FLP)-like reactivity towards carbon dioxide and phenylacetylene, affording 1,2-addition and deprotonation products, respectively.

This article is part of the themed collection: SU 120: Celebrating 120 Years of Soochow University

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DOI: https://doi.org/10.1039/C9CC06676D
Article type: Communication
Submitted: 28 Сер 2019
Accepted: 26 Вер 2019
First published: 27 Вер 2019

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Chem. Commun., 2019,55, 12777-12780

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Dihydrogen activation by intermolecular rare-earth aryloxide/N-heterocyclic carbene Lewis pairs

K. Chang, Y. Dong and X. Xu, Chem. Commun., 2019, 55, 12777 DOI: 10.1039/C9CC06676D

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Chemical Communications

Dihydrogen activation by intermolecular rare-earth aryloxide/N-heterocyclic carbene Lewis pairs†

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Dihydrogen activation by intermolecular rare-earth aryloxide/N-heterocyclic carbene Lewis pairs

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