Published November 13, 2017
| Supplemental Material
Journal Article
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Stoichiometrically Activated Catalysts for Ethylene Tetramerization using Diphosphinoamine-Ligated Cr Tris(hydrocarbyl) Complexes
- Creators
- Hirscher, Nathanael A.
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Agapie, Theodor
Chicago
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Abstract
A new, stoichiometric activation mode is presented for Cr-PNP (PNP = diphosphinoamine) complexes for ethylene tetramerization catalysis. To access suitable precatalysts, two robust Cr(III) multiaryl compounds were synthesized as THF adducts. These complexes are supported by a facially coordinated bis(aryl) ligand with an additional ether donor. From these precursors, Cr-PNP tris(hydrocarbyl) complexes were synthesized. Using 1 equiv of Brønsted acid as an activator, an active species for the catalytic tetramerization of ethylene was produced, without the need for excess alkylaluminum reagents.
Additional Information
© 2017 American Chemical Society. Received: September 14, 2017. Publication Date (Web): October 23, 2017. We are grateful to The Dow Chemical Company and Caltech for funding. We thank Sean Ewart, David Laitar, Mari Rosen, Joshua Buss, and Dinesh Aluthge for insightful discussions and Larry Henling and Mike Takase for assistance with crystallography. The authors declare no competing financial interest.Attached Files
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Additional details
- Eprint ID
- 82618
- Resolver ID
- CaltechAUTHORS:20171024-130627004
- Dow Chemical Company
- Caltech
- Created
-
2017-10-24Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field