Hydrogen Bromide → 1-Methyl-3-phenyl-5-(2-bromomethylphenyl)-1,2,4-triazole
Reaction equation
[BrH:1].[CH3:2][N:3]1[C:7]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[CH2:14]O)=[N:6][C:5]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)=[N:4]1>ClCCl>[CH3:2][N:3]1[C:7]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=2[CH2:14][Br:1])=[N:6][C:5]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)=[N:4]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
To 300 ml. of dichloromethane saturated with dry hydrogen bromide 7 g. of 1-methyl-3-phenyl-5-(2-hydroxymethylphenyl)-1,2,4-triazole are added. The solution is allowed to stand at room temperature for a night and after washing with aqueous sodium bicarbonate and then with water it is dried over sodium sulfate. Evaporation of the solvent and crystallization from hexane afford the title compound. M.p. 83°-85° C. Yield 84%.