Process for the production of N-(2-methyl-4-chlorophenyl)- formamidine derivatives

摘要

A process for the production of N-(2-methyl-4-chlorophenyl)- formamidine derivatives of formula ##STR1## wherein R.sub.1 is hydrogen or an alkyl radical having 1 to 4 carbon atoms and R.sub.2 is an alkyl radical having 1 to 4 carbon atoms is disclosed which comprises reacting an N-substituted formamide with an inorganic acid chloride, such as phosphorus oxychloride, thionylchloride and phosgene, condensing the intermediate formed with o-toluidine and subsequently chlorinating the N- (2-methylphenyl)-formamidine derivative formed, all reaction steps involved in said process being carried out in the same solvent which is selected from the group of halogenated hydrocarbons.