O-Phenylenediamine → 2-(4-Bromophenyl)-3-phenylquinoxaline
Reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=O)[C:9]([C:11]2[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=2)=O)=[CH:4][CH:3]=1.[C:18]1([NH2:25])[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=1[NH2:24]>C(O)C>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=3)=[N:25][C:18]3[C:19](=[CH:20][CH:21]=[CH:22][CH:23]=3)[N:24]=2)=[CH:4][CH:3]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
8.2 g (29 mmol) of 1-(4-bromophenyl)-2-phenylethanedione, 3.1 g (31 mmol) of o-phenylenediamine, and 100 mL of ethanol were placed into a 300-mL flask, and the mixture was refluxed for 2 hours. After the reaction, the precipitated solid was collected by suction filtration. The collected solid washed with ethanol and dried. 7.3 g of a light-yellow solid was obtained as the target substrate in 69% yield.