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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收藏
页码：607 / 613
页数：7
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