tPiperonal (heliotropine or 3,4-methylenedioxybenzaldehyde) has been synthesized by oxidizing piper-onyl alcohol in aqueous UV-irradiated TiO2suspensions. This compound was identified by GC–MSchromatography,1H NMR and melting point determination. The other products of the photoprocess were1,3-bis(3,4-(methylenedioxy)benzyl) ether (found in traces) and CO2, derived from the parallel pathwayof photo-mineralization. Commercial and home-prepared TiO2samples have been tested and the bestselectivity (ca. 35%) was obtained by using the home-prepared ones. The reported green process allowsto obtain an added value product (piperonal), upon partial oxidation of a cheap reagent.

Bellardita, M., Loddo, V., Palmisano, G., Pibiri, I., Palmisano, L., Augugliaro, V. (2014). Photocatalytic green synthesis of piperonal in aqueous TiO2 suspension. APPLIED CATALYSIS. B, ENVIRONMENTAL, 144, 607-613 [10.1016/j.apcatb.2013.07.070].

Photocatalytic green synthesis of piperonal in aqueous TiO2 suspension

BELLARDITA, Marianna;LODDO, Vittorio;PALMISANO, Giovanni;PIBIRI, Ivana;PALMISANO, Leonardo;AUGUGLIARO, Vincenzo
2014-01-01

Abstract

tPiperonal (heliotropine or 3,4-methylenedioxybenzaldehyde) has been synthesized by oxidizing piper-onyl alcohol in aqueous UV-irradiated TiO2suspensions. This compound was identified by GC–MSchromatography,1H NMR and melting point determination. The other products of the photoprocess were1,3-bis(3,4-(methylenedioxy)benzyl) ether (found in traces) and CO2, derived from the parallel pathwayof photo-mineralization. Commercial and home-prepared TiO2samples have been tested and the bestselectivity (ca. 35%) was obtained by using the home-prepared ones. The reported green process allowsto obtain an added value product (piperonal), upon partial oxidation of a cheap reagent.
2014
Settore CHIM/07 - Fondamenti Chimici Delle Tecnologie
Bellardita, M., Loddo, V., Palmisano, G., Pibiri, I., Palmisano, L., Augugliaro, V. (2014). Photocatalytic green synthesis of piperonal in aqueous TiO2 suspension. APPLIED CATALYSIS. B, ENVIRONMENTAL, 144, 607-613 [10.1016/j.apcatb.2013.07.070].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/98002
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