Amide versus amine ligand paradigm in the direct amination of alcohols with Ru-PNP complexes - INSA Toulouse - Institut National des Sciences Appliquées de Toulouse Access content directly
Journal Articles Catalysis Science & Technology Year : 2018

Amide versus amine ligand paradigm in the direct amination of alcohols with Ru-PNP complexes

Abstract

The catalytic activity of a series of Ru-PNP pincer ligand complexes was studied in the direct amination of alcohols with ammonia. It turned out that all complexes of PNP ligands bearing a secondary amine showed no activity in this hydrogen-shuttling reaction sequence, while all complexes of homologous ligands bearing a tertiary amine gave active catalysts. Further comparative studies on catalysts bearing an acridine-based PNP pincer ligand and a PNP ligand of the Xantphos family provided valuable mechanistic insight that led to the design of a highly active catalyst. It appears that in the group of ligands studied here only ligands that do not form stable Ru-amido complexes are active alcohol amination catalysts.
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Dates and versions

hal-02001978 , version 1 (31-01-2019)

Identifiers

  • HAL Id : hal-02001978 , version 1

Cite

Dennis Pingen, Jong-Hoo Choi, Henry Allen, George Murray, Prasad Ganji, et al.. Amide versus amine ligand paradigm in the direct amination of alcohols with Ru-PNP complexes. Catalysis Science & Technology, 2018, 8 (15), pp.3969-3976. ⟨hal-02001978⟩
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