Universität zu Köln

Pingen, Dennis ORCID: 0000-0001-5440-7752, Choi, Jong-Hoo, Allen, Henry, Murray, George, Ganji, Prasad, Van Leeuwen, Piet W. N. M., Prechtl, Martin H. G. ORCID: 0000-0003-2155-8006 and Vogt, Dieter (2018). Amide versus amine ligand paradigm in the direct amination of alcohols with Ru-PNP complexes. Catal. Sci. Technol., 8 (15). S. 3969 - 3977. CAMBRIDGE: ROYAL SOC CHEMISTRY. ISSN 2044-4761

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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.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Pingen, Dennis UNSPECIFIED orcid.org/0000-0001-5440-7752 UNSPECIFIED Choi, Jong-Hoo UNSPECIFIED UNSPECIFIED UNSPECIFIED Allen, Henry UNSPECIFIED UNSPECIFIED UNSPECIFIED Murray, George UNSPECIFIED UNSPECIFIED UNSPECIFIED Ganji, Prasad UNSPECIFIED UNSPECIFIED UNSPECIFIED Van Leeuwen, Piet W. N. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Prechtl, Martin H. G. UNSPECIFIED orcid.org/0000-0003-2155-8006 UNSPECIFIED Vogt, Dieter UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-176626
DOI:	10.1039/c8cy00869h
Journal or Publication Title:	Catal. Sci. Technol.
Volume:	8
Number:	15
Page Range:	S. 3969 - 3977
Date:	2018
Publisher:	ROYAL SOC CHEMISTRY
Place of Publication:	CAMBRIDGE
ISSN:	2044-4761
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language RUTHENIUM-CATALYZED AMINATION; PINCER COMPLEX; METHANOL DEHYDROGENATION; SECONDARY ALCOHOLS; AMMONIA; ACTIVATION; REACTIVITY; HYDROGEN; H-2; IMINES Multiple languages Chemistry, Physical Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/17662