Process for preparing chlorides azincarboxilicos acids.

摘要

The invention relates to a process effective and efficient for preparing compounds of type acid chloride AZINILICO of formula I wherein AZ REPRESENTS A AZINILO optionally substituted, comprising heating a TRICLOROMETILAZINA OF FORMULA II wherein AZ HAS THE MEANING DESCRIBED, with an acid which forms an acid chloride which can be distilled under reduced pressure during the reaction in the presence of an acid catalyst; And the use of compounds of formula I obtained by this process for the preparation of (hetero) ARILOXIAZINILCARBOXAMIDAS of formula VI, WHERE AZ has the meaning described in any of the preceding claims and AR represents an aryl group, or heteroaryl group, R SUP, 3} REPRESENTS A HYDROGEN aTOM or an alkyl group, YR SUP, 4} represents an alkyl, aryl, heteroaryl or optionally substituted cycloalkyl.