Benzoic acid, 2-chloro-5-(chlorosulfonyl)- → Benzoic acid, 2-chloro-5-[(methylamino)sulfonyl]-

Participants

Reaction Steps

5-(N-Methylsulfamoyl)-isatoic anhydride, which is to be used as the starting material, can be obtained, for example, in a manner analogous to that described in Example 1, using 2-chloro-5-chlorosulfonyl-benzoic acid as the starting material, the product being obtained via 2-chloro-5-(N-methylsulfamoyl)-benzoic acid with a melting point of 170°-172° and 5-(N-methylsulfamoyl)-anthranilic acid with a melting point of 205°; the product melts at 260°.

Provenance & Evidence