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https://hdl.handle.net/10316/8245
Título: | 5,15-Diaryl-beta-substituted-porphyrinato-manganese(III) chlorides as probes for structure-activity relationships in porphyrin-based epoxidation catalysts | Autor: | Sobral, Abílio J. F. N. Gonsalves, António M. d'A. Rocha |
Data: | 2001 | Citação: | Journal of Porphyrins and Phthalocyanines. 5:12 (2001) 861-866 | Resumo: | Manganese complexes of 5,15-diaryl-beta-substituted-porphyrins were prepared and their behaviour as oxidation catalysts was studied. The role of the pyrrolic and meso-substituents on the activity and selectivity of these catalysts was studied to reveal new structure-activity relationships in these porphyrin-based epoxidation catalysts. The beneficial effect of the halogen atoms at the meso-phenyls is still observed with these catalysts but, for the first time, a strong dependence on the selectivity of the epoxide production was found to be dependent on the nature of the non-halogen substituents at the beta-pyrrolic positions of the porphyrin. Copyright © 2001 John Wiley & Sons, Ltd. | URI: | https://hdl.handle.net/10316/8245 | DOI: | 10.1002/jpp.554 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Química - Artigos em Revistas Internacionais |
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