4,5-Dianilinophthalimide → HCID 22918413, compound

Participants

Reaction Steps

138 mg (0.36 mmol) of Lawesson reagent [=2,4-bis(4-methoxyphenyl)-2,4-dithioxo-1,3,2,4-dithiaphosphetane]are added to a solution of 100 mg (0.3 mmol) of 4,5-bis(anilino)phthalimide (Example 1) in 15 ml of dichloromethane and the mixture is boiled under reflux for 4 hours. The reaction mixture is concentrated by evaporation and chromatographed directly on silica gel with hexane/ethyl acetate 2:1. The product fractions are concentrated by evaporation, yielding the title compound in the form of yellow crystals, FAB-MS: 346 [M+ +H].

Provenance & Evidence