Simplified and versatile access to low valent Ni complexes by metal-free reduction of Ni II precursors

The reduction of [Ni(DME)Cl2] with 2 equiv. of bis(trimethylsilyl)-1,4-tetramethyldihydropyrazine in the presence of a ligand L and an excess of olefin cleanly leads to [Ni(L)(alkene)2] complexes. When reduction is performed in the presence of 1,5-cyclooctadiene (COD), [Ni(COD)2] is obtained. Such a...

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Published inDalton transactions : an international journal of inorganic chemistry Vol. 48; no. 13; pp. 4101 - 4104
Main Authors Moser, Emile, Jeanneau, Erwann, Mézailles, Nicolas, Olivier-Bourbigou, Hélène, Breuil, Pierre-Alain R
Format Journal Article
LanguageEnglish
Published England Royal Society of Chemistry 07.04.2019
Subjects
Catalysis
Chemical Sciences
Environmental Sciences
Reduction of [Ni(DME)Cl2]
trimethylsilyl
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Summary:The reduction of [Ni(DME)Cl2] with 2 equiv. of bis(trimethylsilyl)-1,4-tetramethyldihydropyrazine in the presence of a ligand L and an excess of olefin cleanly leads to [Ni(L)(alkene)2] complexes. When reduction is performed in the presence of 1,5-cyclooctadiene (COD), [Ni(COD)2] is obtained. Such an approach also allows access to the NiI dimer [Ni(bis(dicyclohexylphosphino)propane)Cl]2.
ISSN:1477-9226
1477-9234
DOI:10.1039/c9dt00668k