Issue 28, 2019

Efficient CO2 fixation into cyclic carbonates catalyzed by NNO-scorpionate zinc complexes

Abstract

A series of new chiral zwitterionic NNO-scorpionate mononuclear zinc alkyls [Zn(R)(κ3-NNO)]Br was developed in very high yields via suitable quaternization in the scorpionate ligand. These zwitterionic complexes performed as bifunctional catalysts and exhibited improved catalytic activity for the fixation of CO2 into cyclic carbonates compared to the neutral analog mononuclear [Zn(R)(κ3-NNO)] and binuclear [Zn(R)(κ2-NNμ-O)Zn(R)2] compounds. The catalyst system showed a broad substrate scope and functional group tolerance under mild and solvent-free conditions.

Graphical abstract: Efficient CO2 fixation into cyclic carbonates catalyzed by NNO-scorpionate zinc complexes

Supplementary files

Article information

Article type
Paper
Submitted
02 May 2019
Accepted
17 Jun 2019
First published
17 Jun 2019

Dalton Trans., 2019,48, 10733-10742

Efficient CO2 fixation into cyclic carbonates catalyzed by NNO-scorpionate zinc complexes

S. Sobrino, M. Navarro, J. Fernández-Baeza, L. F. Sánchez-Barba, A. Garcés, A. Lara-Sánchez and J. A. Castro-Osma, Dalton Trans., 2019, 48, 10733 DOI: 10.1039/C9DT01844A

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