Table of Contents
Laser Chemistry
Volume 17, Issue 2, Pages 97-108

Laser-Induced Photochemical Reaction of Maleic Acid Solutions in the Presence of Hydrogen Peroxide

1Osaka Laboratory for Radiation Chemistry, Japan Atomic Energy Research Institute, Mii-Minami 25-1, Neyagawa, Osaka 572, Japan
2Kansai Research Establishment, Japan Atomic Energy Research Institute, Mii-Minami 25-1, Neyagawa, Osaka 572, Japan
3Radiation Application Development Association, Osaka Laboratory for Radiation Chemistry, Mii-Minami 25-1, Neyagawa, Osaka 572, Japan
4Japan Synchrotron Radiation Research Institute, Kanaji 1503-1, Hyogo, Kamigori 678-12, Japan

Received 20 November 1996

Copyright © 1997 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Targeting the selective and direct synthesis of tartaric acid (TA), the photochemical reactions of maleic acid (MA) solutions containing H2O2. in various solvents have been investigated using four wavelengths in the UV region between 193 and 351 nm, with high intensity from an excimer laser. All the laser irradiations in H2O resulted in the direct synthesis of TA with lower selectivity and it was found that, with XeF-laser (351 nm) irradiation in 1,4-dioxane, TA is selectively and directly synthesized from MA containing H2O2 of lower concentration at room temperature. On the other hand, none of the irradiations in methanol, N,N-dimethylformamide, acetonitrile, and tetrahydrofuran gave the selective formation of TA. On the basis of these results, the reaction scheme for the selective formation of TA is discussed.