Oxidation of aromatic monoterpenes with hydrogen peroxide catalysed by Mn(III) porphyrin complexes

Citation
Rrl. Martins et al., Oxidation of aromatic monoterpenes with hydrogen peroxide catalysed by Mn(III) porphyrin complexes, J MOL CAT A, 137(1-3), 1999, pp. 41-47
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
ISSN journal
1381-1169 → ACNP
Volume
137
Issue
1-3
Year of publication
1999
Pages
41 - 47
Database
ISI
SICI code
1381-1169(19990108)137:1-3<41:OOAMWH>2.0.ZU;2-J
Abstract
The oxidation of carvacrol 1, thymol 2 and p-cymene 3 with hydrogen peroxid e catalysed by Mn(III) porphyrins is reported. The oxidation of 1 and 2 sel ectively originates thymoquinone 6. From the oxidation of p-cymene 3, the i solated major products 7-10, were formed from the oxidation of positions 7 and 8 of the substrate, although minor amounts of thymoquinone 6 were also formed. The efficiency and selectivity of the catalytic systems and the str uctural characterisation of the products obtained will be discussed. (C) 19 99 Elsevier Science B.V. All rights reserved.