Heterocyclic n,n'-diglycidyl compounds
Abstract
Abstract NEW 1,3-DIGLYCIDYL-5,5-DIALKYL-5,6-DIHYDRO-URACILS (1,3DIGLYCIDYL-5,5-DIMETHYL-5,6-DIHYDRO-URACIL AND 1,3-DIGLYCIDYL-5,5-DIMETHYL-6-ISPOROPYL-5,6-DIHYDRO-URACIL) ARE PREPARED BY THE REACTION, KNOWN PER SE, OF 5,5-DIALKYL-5,6DIHYDRO-URACIL WITH EPICHLOROHYDRIN IN THE PRESENCE OF A TERTIARY AMINE OR OF A QUATERNARY AMMONIUM SALT, FOLLOWED BY DEHYDROHALOGENATION WITH ALKALI. (THE EASY ACCESS IS SURPRISING BEACUSE THE 5-UNSUBSTITUTED DIHYDROURACILS CAN BE CONVERTED ONLY INTO THE MONOGLYCIDYL DERIVATIVES EVEN WHEN A LARGE EXCESS OF EPICHLOROHYDRIN IS USED). AS A RULE, THE NEW DIEPOXIDES ARE LIQUID-VISCOUS AND CAN BE CURED WITH THE USUAL CURING AGENTS, SUCH AS DICARBOXYLIC ACID ANHYDRIDES OR POLYAMINES TO FORM SHAPED ARTICLES WITH GOOD MECHANICAL AND ELECTRICAL PROPERTIES.
Inventors
- 👤 Juergen Habermeier
- 👤 Daniel Porret
Bibliographic Details
Claims Analysis
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