Under-flame Oxidation of Amines and Amino Acids in an Aqueous Solution

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概要

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• Flames from town gas-oxygen, hydrogen-oxygen, and ethylene-oxygen mixtures, when blown against the surface of an aqueous solution of amines and amino acids, induced an oxidation reaction in the aqueous phase, while an acetylene-oxygen flame failed to oxidize the compounds in solution. The hydrogen flame caused direct hydroxylation of the aromatic rings of phenylglycine homologs. The isomeric ratio of o-, m-, and p-hydroxyphenyl-amino acids produced was in accordance with that obtained by using the reaction systems of Fe^<2+>-H_2O_2-EDTA and Fe^<2+>-ascorbic acid-H_2O_2-EDTA, which are known to involve a hydroxyl radical as the agent for hydroxylating the aromatic rings. These results strongly suggest that the active species of flame-induced oxidation in an aqueous solution was the hydroxyl radical which was produced in the flames and extracted into the aqueous phase.

• 社団法人日本農芸化学会の論文
• 1996-11-23

著者

• Shimoyama Akira

  Department of Chemistry, University of Tsukuba

• Shimoyama Akira

  Kochi Gakuen College

• Nomoto S

  Univ. Tsukuba Tsukuba

• Nomoto S

  Department Of Chemistry University Of Tsukuba

• Nomoto Shinya

  Institute Of Chemistry The University Of Tsukuba

• Shimoyama Akira

  Institute Of Chemistry The University Of Tsukuba

• Shiraishi Susumu

  Matsuyama Shinonome Junior College

• Shiraishi Susumu

  Nippon Steel Corporation

• SAHARA Denzo

  Institute of Agricultural and Forest Engineering, The University of Tsukuba

• Sahara Denzo

  Institute Of Agricultural And Forest Engineering The University Of Tsukuba

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