[F:1][C:2]1[C:3]([OH:13])=[C:4]([CH:9]=[C:10]([F:12])[CH:11]=1)[CH2:5][N:6]([CH3:8])[CH3:7].[CH3:14][I:15]>C(Cl)(Cl)Cl>[I-:15].[F:1][C:2]1[C:3]([OH:13])=[C:4]([CH:9]=[C:10]([F:12])[CH:11]=1)[CH2:5][N+:6]([CH3:14])([CH3:8])[CH3:7]74 g (0.40 mol) of 3,5-difluoro-2-hydroxy-N,N-dimethylbenzylamine was dissolved in 300 ml of chloroform, and 200 ml of methyl iodide was added thereto. The mixture was heated under reflux for 3 hr to deposit a yellow precipitate. The precipitate was recovered by filtration to prepare 114 g (yield: 87%) of the intended product.
Wird geladen…