ES398067A1 - Procedure for the obtaining of derivatives of 4,5-bis-trifluormetilimino. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Process for obtaining 4,5-bis-trifluoromethylimino derivatives of heterocyclic rings with five sulfur-free members with two heteroatoms in the ring, characterized in that carbonic or carboxylic acid derivatives of formula ** (see formula) ** Where z means oxygen, the group r-n = and the group (see formula) x and y mean oxygen, the group (see formula) and the group (see formula), where however, x and y must not be simultaneously oxygen, where r, r', r''' and r "'''mean hydrogen, alkyl, alkenyl and alkynyl with up to 8 carbon atoms, being able to these groups are substituted by halogen, cyano, lower alkoxy groups and alkylmercapto, furthermore cycloalkyl groups, optionally substituted, as well as then carbalkoxy, furthermore, aralkyl with up to 2 carbon atoms in the alkyl and aryl part with up to 14 carbon atoms in the ring system, the aryl radicals may, if necessary, be substituted by halogen, cyano, nitro, lower alkyl and halogenoalkyl, lower alkoxy and alkylmercapto, furthermore, heterocycles with 5 to 7 members or those residues which can bind z with x or y with formation of a ring with 5 to 7 members, the heterocycles can also be ringed with a benzene ring, which can also be partially hydrogenated, in addition heterocycles can be substituted two by halogen, cyano, nitro and lower alkyl, are reacted with perfluoro-2,5-diazahexa-2,4-diene of the formula: ** (see formula) ** In the presence of a hydrogen fluoride acceptor in the temperature zone between -50 and +120º c. (Machine-translation by Google Translate, not legally binding)