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Issue 23, 2019
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Mono- and bimetallic amidinate samarium complexes – synthesis, structure, and hydroamination catalysis

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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

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Article information


Submitted
03 Apr 2019
Accepted
01 May 2019
First published
09 May 2019

This article is Open Access

Dalton Trans., 2019,48, 8153-8160
Article type
Paper

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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