The formation of diacetyl and acetoin from α-acetolactic acid

Autor:	J. C. de Man
Rok vydání:	2010
Předmět:	chemistry.chemical_compound Autoxidation Decarboxylation Chemistry Acetoin Inorganic chemistry Qualitative inorganic analysis General Chemistry Medicinal chemistry Diacetyl Intermediate product Acetolactic acid Ion
Zdroj:	Recueil des Travaux Chimiques des Pays-Bas. 78:480-486
ISSN:	0165-0513
DOI:	10.1002/recl.19590780703
Popis:	1Of several ions tested, only Fe+3, Cu+2 and Al+3 catalysed the decarboxylation of α-acetolactic acid at pH 4.8. 2At pH 2.2, only Fe+3 and Cu+2 were active. 3Fe+3 and Cu+2 were shown to form complexes with α-acetolactic acid. 4Fe+3 and Cu+2 not only decarboxylated but also oxidized α-acetolactic acid, with, as a result, formation of diacetyl. 5Decarboxylation of α-acetolactic acid by these ions is compatible with the mechanism suggested by Martell and Calvin. 6α-Acetolactic acid is subject to autoxidation. 2-Butene-2,3-diol may be an intermediate product.
Databáze:	OpenAIRE
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