[CH3:1][O:2][C:3]1[C:4]([NH2:9])=[CH:5][CH:6]=[CH:7][CH:8]=1.C([N:12]([CH2:15]C)[CH2:13][CH3:14])C.[C:17](Cl)(Cl)=[O:18].[OH2:21]>C1(C)C=CC=CC=1>[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[NH:9][C:15]([NH:12][C:13]1[CH:14]=[CH:7][CH:8]=[CH:3][C:4]=1[O:18][CH3:17])=[O:21]A solution of o-anisidine (12.3 g, 100 mmol) and triethylamine (11 ml, 80 mmol) in absolute toluene (100 ml) was under stirring on an ice bath added phosgene (20.7 ml, 1.93 M sol in toluene, 40 mmol) and the mixture was stirred at 90° C. for 3 hours. The reaction mixture was after cooling to ambient temperature poured into water (100 ml) and the title compound was collected by filtration and used without further purification.
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