2-N-(3-methoxypropyl)benzene-1,2-diamine

Conditions: temp:130.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirred mixture of 8 ml of malonyl dichloride and 90 ml of o-dichlorobenzene at 60° C., a solution containing 12.7 g of N-(3-methoxypropyl)-o-phenylenediamine in 10 ml of o-dichlorobenzene is added for 32 minutes in several times. The resulting mixture is stirred at 130° C. for 1.6 hours and then subjected to filtration during hot. The filtrate is concentrated and purified by silica gel column chromatography (ethyl acetate). n-hexane is added and precipitated crystals are separated by filtration and dried to obtain 9.8 g of (208). is added for 32 minutes in several times subjected to filtration during hot The filtrate is concentrated purified by silica gel column chromatography (ethyl acetate) n-hexane is added precipitated crystals are separated by filtration dried