Under-flame oxidation of amines and amino acids in an aqueous solution

Article abstract of DOI:10.1271/bbb.60.1851

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 Fe²⁺-H₂O₂-EDTA and Fe²⁺-ascorbic acid-H₂O₂-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.

Full text of DOI:10.1271/bbb.60.1851

Evaluation Only. Created with Aspose.PDF. Copyright 2002-2021 Aspose Pty Ltd.
This article was downloaded by: [Massachusetts PRIM Board]
On: 21 December 2014, At: 20:28
Publisher: Taylor & Francis
Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer
House, 37-41 Mortimer Street, London W1T 3JH, UK
Bioscience, Biotechnology, and Biochemistry
Publication details, including instructions for authors and subscription information:
http://www.tandfonline.com/loi/tbbb20
Under-flame Oxidation of Amines and Amino Acids in
an Aqueous Solution
Shinya Nomotoa, Akira Shimoyamaa, Susumu Shiraishiab & Denzo Saharaac
a Institute of Chemistry, The University of Tsukuba, Tsukuba, Ibaraki 305, Japan
b Matsuyama Shinonome Junior College, Matsuyama, Ehime 790, Japan
c Institute of Agricultural and Forest Engineering, The University of Tsukuba, Ibaraki 305,
Japan
Published online: 12 Jun 2014.
To cite this article: Shinya Nomoto, Akira Shimoyama, Susumu Shiraishi & Denzo Sahara (1996) Under-flame Oxidation
of Amines and Amino Acids in an Aqueous Solution, Bioscience, Biotechnology, and Biochemistry, 60:11, 1851-1855, DOI:
10.1271/bbb.60.1851
To link to this article: http://dx.doi.org/10.1271/bbb.60.1851
PLEASE SCROLL DOWN FOR ARTICLE
Taylor & Francis makes every effort to ensure the accuracy of all the information (the “Content”) contained
in the publications on our platform. However, Taylor & Francis, our agents, and our licensors make no
representations or warranties whatsoever as to the accuracy, completeness, or suitability for any purpose of
the Content. Any opinions and views expressed in this publication are the opinions and views of the authors,
and are not the views of or endorsed by Taylor & Francis. The accuracy of the Content should not be relied
upon and should be independently verified with primary sources of information. Taylor and Francis shall
not be liable for any losses, actions, claims, proceedings, demands, costs, expenses, damages, and other
liabilities whatsoever or howsoever caused arising directly or indirectly in connection with, in relation to or
arising out of the use of the Content.
This article may be used for research, teaching, and private study purposes. Any substantial or systematic
reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any
form to anyone is expressly forbidden. Terms & Conditions of access and use can be found at http://
www.tandfonline.com/page/terms-and-conditions

Evaluation Only. Created with Aspose.PDF. Copyright 2002-2021 Aspose Pty Ltd.
NII-Electronic Library Service

Evaluation Only. Created with Aspose.PDF. Copyright 2002-2021 Aspose Pty Ltd.
NII-Electronic Library Service

Evaluation Only. Created with Aspose.PDF. Copyright 2002-2021 Aspose Pty Ltd.
NII-Electronic Library Service