Abstract
Based on the critical solution temperature (CST) of non-ionic phosphine ligand, a thermoregulated phase-separable catalyst formed in situ from P[p-C6H4O (CH2CH2O)nH]3 (PETPP, n = 10) and RhCl3·3H2O was applied for the first time in the hydroformylation of diisobutylene. It was found that the reaction temperature, total pressure and reaction time, as well as the P/Rh molar ratio had great influence on the reactivity of the catalyst. Under the optimum conditions, the conversion of diisobutylene and yield of aldehyde are 93.1 and 82.5%, respectively. Recycling of the PETPP/Rh complex catalyst up to three times without loss of activity has been observed.
Original language | English |
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Pages (from-to) | 79-83 |
Number of pages | 5 |
Journal | Journal of Molecular Catalysis A: Chemical |
Volume | 188 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 30 Sept 2002 |
Externally published | Yes |
Keywords
- Critical solution temperature
- Diisobutylene
- Hydroformylation
- Non-ionic phosphine ligand
- Thermoregulated phase-separable catalysis