Ethylene trimerisation and tetramerisation catalysts with polar-substituted diphosphinoamine ligands

Matthew J. Overett; Kevin Blann; Annette Bollmann; John T. Dixon; Fiona Hess; Esna Killian; Hulisani Maumela; David H. Morgan; Arno Neveling; Stephanus Otto

doi:10.1039/B412432D

Ethylene trimerisation and tetramerisation catalysts with polar-substituted diphosphinoamine ligands†

Matthew J. Overett,*^a Kevin Blann,^a Annette Bollmann,^a John T. Dixon,^a Fiona Hess,^a Esna Killian,^a Hulisani Maumela,^a David H. Morgan,^a Arno Neveling^a and Stephanus Otto^a

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^a Sasol Technology (Pty) Ltd, R&D Division, 1 Klasie Havenga Road, Sasolburg, South Africa
E-mail: matthew.overett@sasol.com
Fax: 27 (0)11 522 9696
Tel: 27 (0)16 960 5407

Abstract

Chromium-based catalyst systems with polar-substituted diphosphinoamine ligands are selective for either trimerisation or tetramerisation of ethylene, depending on the position of the polar groups on the aryl rings.

Chemical Communications

Ethylene trimerisation and tetramerisation catalysts with polar-substituted diphosphinoamine ligands†

Abstract

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Ethylene trimerisation and tetramerisation catalysts with polar-substituted diphosphinoamine ligands

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