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((2-Hydroxynapthalen-1-yl)methylene)aniline derived Schiff base adducts of MTO: Synthesis and catalytic application |
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| Authors: | Alejandro Capap Ming-Dong Zhou Shu-Liang Zang Fritz E Kühn |
| Institution: | aMolecular Catalysis, Fakultät für Chemie der Technischen Universität München, Lichtenbergstrasse 4, D-85747 Garching bei München, Germany;bDepartment of Chemistry, Liaoning University, Chongshan Middle Road, No. 66, 110036 Shenyang, PR China;cDepartment of Petroleum and Chemical Technology, Liaoning Shihua University, Dandong Road, No. 1, 113001 Fushun, PR China |
| Abstract: | Equimolar reactions of the derivatives of ((2-hydroxynapthalen-1-yl)methylene)aniline with methyltrioxorhenium (MTO) lead to complexes 1–4, where MTO is coordinated via the oxygen of the former hydroxyl-group to MTO. The resulting complexes are very stable but not particularly catalytically active if no electron acceptor resides on the Schiff base. The electron withdrawing groups placed on the Schiff base ligand have the effect of increasing the catalytic activity but somewhat decrease the complex stability. |
| Keywords: | Homogeneous catalysis Ligand effects Methyltrioxorhenium Olefin epoxidation Schiff bases |
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