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A Highly Selective Ethylene Tetramerization Catalyst
Author(s) -
Shaikh Yacoob,
Albahily Khalid,
Sutcliffe Matthew,
Fomitcheva Valeria,
Gambarotta Sandro,
Korobkov Ilia,
Duchateau Robbert
Publication year - 2012
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201106517
Subject(s) - methylaluminoxane , ethylene , catalysis , selectivity , chemistry , chromium , polymer , bridge (graph theory) , polymer chemistry , materials science , combinatorial chemistry , organic chemistry , polymerization , biology , metallocene , anatomy
Small change, big difference : The introduction of an additional CH 2 group into the bridge of ligands with two P/N units leads to a different selectivity of the corresponding chromium‐based catalysts. Whereas 1 produces an ethylene trimerization system, 2 provides an unprecedented ethylene tetramerization system that produces 1‐octene with high purity and little or no polymer side products (see scheme; DMAO=Me 3 Al‐depleted methylaluminoxane).