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http://hdl.handle.net/10397/2927
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| Title: | Olefin epoxidation catalyzed by ruthenium porphyrins using dioxygen as oxidant |
| Authors: | Chan, Wing-hang |
| Subjects: | Alkenes.
Ruthenium.
Porphyrins.
Oxidation.
Catalysis.
Hong Kong Polytechnic University -- Dissertations |
| Issue Date: | 1999 |
| Publisher: | The Hong Kong Polytechnic University |
| Abstract: | Ruᵛᶦ(TDCP)O₂ and Ruᵛᶦ(TMP)O₂ were synthesized by reacting Ruᶦᶦ(TDCP)(CO)(MeOH) and Ruᶦᶦ(TMP)(CO)(MeOH) with m-chloroperoxybenzoic acid in dichloromethane. Ruᵛᶦ(P)O₂ complexes are effective in epoxisation of olefins. The turnover rates by Ruᵛᶦ(TDCP)O₂ are lower than that of corresponding reactions catalyzed by RuVI(TMP)O2. Both catalysts are deactivated after the reaction by the formation of a stable Ru(II) carbonyl species. Kinetics studies showed that the intermediates are cationic 3-membered species. A concerted oxygen insertion mechanism is proposed. |
| Degree: | M.Phil., Dept. of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, 1999. |
| Description: | [11], 90 leaves : ill. ; 30 cm.
PolyU Library Call No.: [THS] LG51 .H577M ABCT 1999 Chan |
| Rights: | All rights reserved. |
| Type: | Thesis |
| URI: | http://hdl.handle.net/10397/2927 |
| Appears in Collections: | ABCT Theses
PolyU Electronic Theses
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