Issue 23, 2019

Mono- and bimetallic amidinate samarium complexes – synthesis, structure, and hydroamination catalysis

Abstract

In order to investigate the difference between mono- and bimetallic systems in the catalytic hydroamination/cyclization reaction two mono- and bimetallic amidinate samarium catalysts, featuring comparable coordination environments, were synthesized. Both systems comprise two {N(SiMe3)2} leaving groups to minimize the steric influence of the corresponding amidinate ligand. The bimetallic system is based on a bis(amidinate) 4,6-dibenzofuran derivative, while N,N′-bis(2,6-diisopropylphenyl)benzamidinate was employed as ligand for the monometallic catalyst. For the hydroamination/cyclization reaction five different substrates were investigated. Additionally, kinetic studies were carried out to gain deeper understanding of the mechanism.

Graphical abstract: Mono- and bimetallic amidinate samarium complexes – synthesis, structure, and hydroamination catalysis

Supplementary files

Article information

Article type
Paper
Submitted
03 Apr 2019
Accepted
01 Mai 2019
First published
09 Mai 2019
This article is Open Access
Creative Commons BY-NC license

Dalton Trans., 2019,48, 8153-8160

Mono- and bimetallic amidinate samarium complexes – synthesis, structure, and hydroamination catalysis

N. Kazeminejad, L. Münzfeld, M. T. Gamer and P. W. Roesky, Dalton Trans., 2019, 48, 8153 DOI: 10.1039/C9DT01418G

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