Open AccessHighly Efficient Aerobic Oxidation of Cyclohexene Catalyzed by Iron(III) Porphyrins in Supercritical Carbon Dioxide
Author(s) -
Xiantai Zhou,
Mu-Zhao Sun,
Hongbing Ji
Publication year - 2020
Publication title -
ecs journal of solid state science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.488
H-Index - 51
eISSN - 2162-8777
pISSN - 2162-8769
DOI - 10.1149/2162-8777/ab8f38
Subject(s) - cyclohexene , catalysis , supercritical carbon dioxide , supercritical fluid , cyclohexene oxide , materials science , carbon dioxide , valence (chemistry) , selectivity , photochemistry , epoxide , inorganic chemistry , organic chemistry , chemistry
Efficient aerobic oxidation of cyclohexene to the corresponding products catalyzed by iron (III) porphyrins in supercritical carbon dioxide (scCO 2 ) has been developed. Compared with the oxidation occurred in dichloroethane, the efficiency was improved significantly in scCO 2 , in which the cyclohexene conversion increased from 10.5% to 22.4%. Influence of various reaction parameters including catalyst, catalyst dosage, reaction temperature and pressure on the activity and selectivity were investigated in detail. Moreover, a plausible mechanism involving free radical and high-valence iron species was proposed.