Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
A New and Direct Synthesis of Lactic Acid from Acrylic Acid Using an Excimer Laser with High Intensity
Yuichi ShimizuShunichi Kawanishi
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1996 Volume 25 Issue 11 Pages 935-936

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Abstract

A new and direct method of XeF (351 nm) laser irradiation of acrylic acid 1 solution containing H2O2 are described for the chemical synthesis of lactic acid 2. Increase in the yield strongly depended on the irradiation dose and H2O2 feeding rate, and the formation of 2 showed the quantum yield, 0.3, and the selectivity, 50%, at the maximum yield. Product analysis indicated that OH radicals formed with high density by the laser-photolysis of H2O2 are equally bonded to the carbons of α- and β-positions of 1 to produce 2 and 3-hydroxypropanoic acid with ratio of 1 to 1.

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© 1996 The Chemical Society of Japan
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