1,3-Bis[[p-(dimethylamino)benzylidene]amino]-2-[2-(dimethylamino)vinyl]imidazolium hydrogen carbonate → Imidazolium Acetate
Reaction equation
[C:1](=[O:4])([O-])[OH:2].[CH3:5]N(C)C1C=CC(C=N[N+:13]2[CH:17]=[CH:16][N:15](N=CC3C=CC(N(C)C)=CC=3)[C:14]=2C=CN(C)C)=CC=1>CO.C(O)(=O)C>[C:1]([O-:2])(=[O:4])[CH3:5].[NH+:13]1[CH:17]=[CH:16][NH:15][CH:14]=1Participants
4
Reactant 1
Product 1
Reagents, catalysts & solvents 2
Procedure
1.0 g of 1,3-bis[[p-(dimethylamino)benzylidene]amino]-2-[2-(dimethylamino)vinyl]imidazolium hydrogen carbonate is dissolved in 20 ml of methanol and 3 ml of glacial acetic acid. After 20 minutes, the solution is concentrated at room temperature in a vacuum. The product is crystallized by the addition of ether and recrystallized three times from methanol/ether. There is obtained 1,3-bis[[p-(dimethylamino)benzylidene]amino]-2-[2-dimethylamino)vinyl]imidazolium acetate of melting point 182° (dec.).