Photocatalytic green synthesis of piperonal in aqueous TiO2 suspension

6533b855fe1ef96bd12b0900

RESEARCH PRODUCT

Photocatalytic green synthesis of piperonal in aqueous TiO2 suspension

Vittorio Loddo Vincenzo Augugliaro Leonardo Palmisano Marianna Bellardita Giovanni Palmisano Ivana Pibiri

subject

Aqueous solution Process Chemistry and Technology Ether Catalysis Methylenedioxy Piperonal chemistry.chemical_compound chemistry Reagent Oxidizing agent Organic chemistry Settore CHIM/07 - Fondamenti Chimici Delle Tecnologie Partial oxidation Selectivity PhotocatalysisGreen synthesisPiperonalTiO2suspension General Environmental Science

description

Abstract Piperonal (heliotropine or 3,4-methylenedioxybenzaldehyde) has been synthesized by oxidizing piperonyl alcohol in aqueous UV-irradiated TiO2 suspensions. This compound was identified by GC–MS chromatography, 1H NMR and melting point determination. The other products of the photoprocess were 1,3-bis(3,4-(methylenedioxy)benzyl) ether (found in traces) and CO2, derived from the parallel pathway of photo-mineralization. Commercial and home-prepared TiO2 samples have been tested and the best selectivity (ca. 35%) was obtained by using the home-prepared ones. The reported green process allows to obtain an added value product (piperonal), upon partial oxidation of a cheap reagent.

year	journal	country	edition	language
2014-01-01	Applied Catalysis B: Environmental

https://doi.org/10.1016/j.apcatb.2013.07.070

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