Journal
TETRAHEDRON
Volume 59, Issue 10, Pages 1823-1830Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4020(03)00083-8
Keywords
mandelic acid; oxidation; bismuth; molecular oxygen; substituent effects
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Mandelic acid and some aryl substituted derivatives were oxidised under molecular oxygen and a catalytic amount of Bi(0). The corresponding aldehydes and/or the carboxylic acids were obtained selectively depending on the nature of the substituent. Aldehydes and alpha-keto acids were oxidised under the same Bi(0)/O-2 system and a-keto acids were proposed as intermediates in the formation of benzoic acid derivatives. (C) 2003 Elsevier Science Ltd. All rights reserved.
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