Bromine → HCID 66932674, compound
Reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([CH:9]2[CH2:14][C:13](=[O:15])[CH2:12][C:11](=[O:16])[CH2:10]2)=[CH:5][CH:4]=1.[Br:17]Br>CC(O)=O>[Br:17][CH:12]1[C:11](=[O:16])[CH2:10][CH:9]([C:6]2[CH:5]=[CH:4][C:3]([O:2][CH3:1])=[CH:8][CH:7]=2)[CH2:14][C:13]1=[O:15]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
To a stirred solution of 5-(4-methoxyphenyl)cyclohexane-1,3-dione (5 g, 22.6 mmol) in AcOH (40 mL) at r.t. was added bromine (3.61 g, 1.18 mL, 22.6 mmol) dropwise. The reaction was then carried out according to Method A to give the title compound in quantitative yield as a white solid. δH (DMSO-d6) 7.24 (2H, d, J 8.6 Hz), 6.87 (2H, d, J 8.6 Hz), 3.72 (3H, s), 3.31-3.21 (1H, m), 2.88-2.82 (2H, m), 2.77-2.62 (3H, m). LCMS (ES+) 296.9 (M+H)+.