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

Details Process for the production of N-(2-methyl-4-chlorophenyl)-formam Process for the production of N-(2-methyl-4-chlorophenyl)-formam

Filed on

1978-08-11

Date issued

1986-09-16

Examiner

Trousof, Natalie

Patent Class

Organic compounds -- part of the class 532-570 series

SubClass

Organic compounds

SubSubClass

Amino nitrogen containing

Other Related Categories

C07C12300

Type

Patent

Status

active

Patent number

046123954

Description

ABSTRACT:
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.

REFERENCES:
patent: 3394397 (1968-07-01), Duerr et al.
patent: 3502720 (1970-03-01), Arndt et al.
patent: 3911012 (1975-10-01), Krieger et al.
patent: 4169852 (1979-10-01), Landauer

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