Photocatalytic green synthesis of piperonal in aqueous TiO2 suspension

被引：49

作者：

Bellardita, Marianna ^{[1
]}

Loddo, Vittorio ^{[1
]}

Palmisano, Giovanni ^{[1
,2
]}

Pibiri, Ivana ^{[3
]}

Palmisano, Leonardo ^{[1
]}

Augugliaro, Vincenzo ^{[1
]}

机构：

[1] Univ Palermo, Schiavello Grillone Photocatalysis Grp, Dipartimento Energia Ingn Informaz & Modelli Mate, Palermo, Italy

[2] CNR, Ist Proc Chim Fis, Messina, Italy

[3] Univ Palermo, Dipartimento Sci & Tecnol Biol Chim & Farmaceut, Palermo, Italy

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2014年 / 144卷

关键词：

Photocatalysis; Green synthesis; Piperonal; TiO2; suspension; 4-METHOXYBENZYL ALCOHOL; SELECTIVE OXIDATION; P-ANISALDEHYDE; WATER; ISOMERIZATION; DERIVATIVES; VANILLIN; EUGENOL; SAFROLE; PHENOL;

D O I：

10.1016/j.apcatb.2013.07.070

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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,H-1 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. (C) 2013 Elsevier B.V. All rights reserved.

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页码：607 / 613

页数：7

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