Premium
Chromium‐Catalyzed Highly Selective Oligomerization of Ethene to 1‐Hexene with N , N ‐Bis[chloro(aryl)phosphino]amine Ligands
Author(s) -
Höhne Martha,
Peulecke Normen,
Konieczny Katharina,
Müller Bernd H.,
Rosenthal Uwe
Publication year - 2017
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201700448
Subject(s) - chemistry , steric effects , amine gas treating , catalysis , aryl , medicinal chemistry , 1 hexene , chromium , hexene , polymer chemistry , stereochemistry , organic chemistry , ethylene , alkyl
Different N , N ‐bis[chloro(aryl)phosphino]amines were synthesized and characterized. The synthesized compounds were tested as ligands in the Cr‐catalyzed oligomerization of ethene. The effect of the successive increase of the steric bulk either at one of the P substituents or at the N center on the product distribution of the oligomerization reaction was examined. We found a highly active and selective trimerization system with purities of the hexene fraction up to 99.9 % for 1‐hexene. Furthermore, we suppose an in situ methylation of the chlorinated ligands into the corresponding N , N ‐bis[methyl(aryl)phosphino]amines.