Thionyl Chloride → 2-Chloromethyl-3-ethoxypyridine hydrochloride
反応式
S(Cl)([Cl:3])=O.[CH2:5]([O:7][C:8]1[C:9]([CH2:14]O)=[N:10][CH:11]=[CH:12][CH:13]=1)[CH3:6]>C(Cl)(Cl)Cl>[ClH:3].[Cl:3][CH2:14][C:9]1[C:8]([O:7][CH2:5][CH3:6])=[CH:13][CH:12]=[CH:11][N:10]=1参加物
4
実験手順
Thionyl chloride (8 cc) was added over 8 minutes to a stirred solution of 3-ethoxy-2-hydroxymethylpyridine (5.6 g) in chloroform (60 cc) at room temperature. After 11/2 hrs the mixture was evaporated to dryness and the residue was recrystallised from 0.16 M ethanolic hydrogen chloride/diethyl ether (1:1) to give 2-chloromethyl-3-ethoxypyridine hydrochloride (6.5 g) m.p. 176°-179.5°. (decomp.).
後処理
- customAfter 11/2 hrs the mixture was evaporated to dryness
- customthe residue was recrystallised from 0.16 M ethanolic hydrogen chloride/diethyl ether (1:1)
出典と根拠
- ORDレコード
- ord-0572a0990f034a81beadd8005107c15c
- 出典データセット
- uspto-grants-1979_05
- 特許番号
- US04156727
反応ノート
読み込み中…