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Hydroxyalkylation of parabanic acid. I. Reactions with formaldehyde

✍ Scribed by Iwona Zarzyka-Niemiec; Jacek Lubczak

Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
267 KB
Volume
83
Category
Article
ISSN
0021-8995

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✦ Synopsis

Abstract

The results of investigations into the reaction of parabanic acid with formaldehyde at different molar ratios of the reagents are presented. A fast and effective method of synthesis of N,N′‐bis(hydroxymethyl)parabanate was developed. The reaction of parabanic acid with an excess of formaldehyde was analyzed and the structure of the products proposed. Conditions at which the hydroxymethyl derivatives of parabanic acid undergo self‐condensation as well as prospects of using them in subsequent oxyalkylation with oxiranes are specified. Β© 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 2858–2872, 2002; DOI 10.1002/app.10274

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## Abstract The influence of initial molar ratio of reagents, amount of catalyst, and temperature of reaction between parabanic acid and ethylene carbonate on structure of product was studied. The reaction led to the opening of the trioxoimidazolidine ring, resulting in formation of thermally resis