63134-12-3Relevant academic research and scientific papers
Process for preparing N-(3-amino-4-chlorophenyl) acylamides
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, (2008/06/13)
The present invention provides a process for preparing N-(3-amino-4-chlorophenyl) acylamides of Formula I: STR1 comprising reacting, in a solvent comprising at least one polar solvent, in the presence of at least one acid acceptor, 1-chloro-2,4-diaminobenzene with at least one acyl chloride of formula I: wherein X is --CO-- or --SO2 --; R is selected from the group C1 -C25 alkyl; C1 -C25 alkyl substituted with one or more groups selected from C1 -C12 alkoxy, aryl, aryloxy and C5 -C7 cycloalkyl; aryl; C5 -C7 cycloalkyl. The present invention further comprises the step of purifying said N-(3-amino-4-chlorophenyl) acylamides by crystallizing from a non-polar solvent or conducting the reaction in a mixture of at least one polar and at least one non-polar solvent.
