Dimethylformamide dimethyl acetal → Ethyl 2-(3,4-dimethoxybenzoyl)-2-(dimethylaminomethylene)acetate
Reaction equation
[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:14]=[CH:15][C:16]=1[O:17][CH3:18])[C:6]([CH2:8][C:9]([O:11][CH2:12][CH3:13])=[O:10])=[O:7].CO[CH:21](OC)[N:22]([CH3:24])[CH3:23]>O1CCCC1>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH:14]=[CH:15][C:16]=1[O:17][CH3:18])[C:6]([C:8](=[CH:21][N:22]([CH3:24])[CH3:23])[C:9]([O:11][CH2:12][CH3:13])=[O:10])=[O:7]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A solution of ethyl 2-(3,4-dimethoxybenzoyl)-acetate (25.2 g) and N,N-dimethylformamide dimethyl acetal (17.9 g) in tetrahydrofuran (100 ml) was refluxed for 18 hours under stirring. The reaction mixture was evaporated in vacuo to give ethyl 2-(3,4-dimethoxybenzoyl)-2-(dimethylaminomethylene)acetate (31.09) as an oil.