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Olin Corp
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Olin Corp
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Publication of ES237757A1publicationCriticalpatent/ES237757A1/en
Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems
(AREA)
Abstract
A method for the preparation of new cyclic compounds characterized in that a compound of the general formula is reacted: ** (See formula) ** wherein R is hydrogen or a lower alkyl, with the hydrate of a trihaloacetaldehyde in the presence of a dehydrating condensation agent and if desired by reacting the reaction product also with phosgene and ammonia to obtain a compound having the formula: ** (See formula) ** wherein X is a halogen, R is hydrogen or a lower alkyl and Y is hydrogen or carbamyl. (Machine-translation by Google Translate, not legally binding)
ES0237757A1956-10-031957-09-25A method for the preparation of new cyclic compounds (Machine-translation by Google Translate, not legally binding)
ExpiredES237757A1
(en)
Procedure for obtaining a compound of addition of hexametilentetramine with p-aminobencenosulfonamide (Machine-translation by Google Translate, not legally binding)