Abstract
Molecular iodine was first utilized for direct oxidation of α-isophorone (α-IP) to ketoisophorone (KIP) with molecule oxygen at room temperature and the effects of amount of iodine, solvents and reaction time were investigated extensively. The optimized result shows that 70.2% conversion of α-isophorone and 82.6% selectivity of ketoisophorone are obtained with 15% iodine (molar fraction) in acetonitrile under photoirradiation for 5 h. Moreover, the possible mechanism is proposed.
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Foundation item: Project(21071152) supported by the National Natural Science Foundation of China
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Bao, Jq., Chen, Lh., Tang, Rr. et al. Metal-free direct oxidation of α-isophorone to ketoisophorone by I2 under photoirradiation. J. Cent. South Univ. 19, 2755–2759 (2012). https://doi.org/10.1007/s11771-012-1338-1
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DOI: https://doi.org/10.1007/s11771-012-1338-1