A PHOTOOXIDATION OF CROCONIC ACID INTO OXALIC-ACID

Authors
FABRE PL CASTAN P DEGUENON D PAILLOUS N
Citation
Pl. Fabre et al., A PHOTOOXIDATION OF CROCONIC ACID INTO OXALIC-ACID, Canadian journal of chemistry, 73(8), 1995, pp. 1298-1304
Citations number
27
Categorie Soggetti
Chemistry
Journal title
Canadian journal of chemistry → ACNP
ISSN journal
00084042
Volume
73
Issue
8
Year of publication
1995
Pages
1298 - 1304
Database
ISI
SICI code
0008-4042(1995)73:8<1298:APOCAI>2.0.ZU;2-4
Abstract
Croconic acid, H2C5O5, is readily oxidized. This may be attested by de colorization of the solutions and by observation of oxalic acid comple xes. The oxidation products are identified by C-13 NMR spectroscopy as oxalic and mesoxalic acids, and experimental conditions are specified . The oxidation process requires dioxygen and photons. In parallel, th e electrochemical oxidation of croconic acid is studied in aqueous med ia and in acetonitrile. A potential-pH diagram is drawn.