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F Hoffmann La Roche AG
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F Hoffmann La Roche AG
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Application filed by F Hoffmann La Roche AGfiledCriticalF Hoffmann La Roche AG
Priority to ES0244875ApriorityCriticalpatent/ES244875A1/en
Publication of ES244875A1publicationCriticalpatent/ES244875A1/en
Process for the preparation of ethyleneimine derivatives and salts thereof, characterized in that it comprises reacting a bromine compound represented by the general formula R1-(A)-R2 wherein A represents a monobromo-ethenylene radical in which the bromine atom is attached to the carbon atom adjacent to R2, or a 1,2-dibromo-ethylene radical, R1 represents hydrogen, alkyl, cycloalkyl, aryl or aralkyl, and R2 represents a cyano, carboxyl, carbamido, N-hydroxycarbamido or carbalkoxy group, with liquid ammonia and, if desired, converting the resulting imine product into an acid addition salt. (Machine-translation by Google Translate, not legally binding)
ES0244875A1958-10-241958-10-24
PROCEDURE FOR THE PREPARATION OF ETHYLENIMINE DERIVATIVES
ExpiredES244875A1
(en)
Procedure for the obtaining of new derivatives of heterocyclic hydrazines and their salts (Machine-translation by Google Translate, not legally binding)