Formamide → N-formyl-1-[1-(3,4-dichlorophenyl)cyclobutyl]ethylamine
反応式
[C:1]([C:4]1([C:8]2[CH:13]=[CH:12][C:11]([Cl:14])=[C:10]([Cl:15])[CH:9]=2)[CH2:7][CH2:6][CH2:5]1)(=O)[CH3:2].[CH:16]([NH2:18])=[O:17]>C(O)=O>[CH:16]([NH:18][CH:1]([C:4]1([C:8]2[CH:13]=[CH:12][C:11]([Cl:14])=[C:10]([Cl:15])[CH:9]=2)[CH2:7][CH2:6][CH2:5]1)[CH3:2])=[O:17]参加物
反応条件
- 温度
- 180 °C
実験手順
1-Acetyl-1-(3,4-dichlorophenyl)cyclobutane (9.1 g) prepared as above, formamide (6.5 ml) and 98% formic acid (3 ml) were heated at 180° C. for sixteen hours to give N-formyl-1-[1-(3,4-dichlorophenyl)cyclobutyl]ethylamine. Concentrated hydrochloric acid (20 ml) was added and the mixture heated under reflux for three hours. The solution was then cooled, washed with ether and sodium hydroxide solution added. The product was extracted with ether, and the ether extract washed with water, dried and evaporated. 1-[1-(3,4-Dichlorophenyl)cyclobutyl]ethylamine (b.p. 112°-118° at 0.2 mm Hg) was isolated by distillation. The amine was dissolved in propan-2-ol and concentrated hydrochloric acid and the solution evaporated to dryness to give 1-[1-(3,4dichlorophenyl)cyclobutyl]ethylamine hydrochloride (m.p. 185°-195° C.). (Formula I R1 =Me; R2, R3 and R4 =H; R5 =4-Cl; R6 =3-Cl).
出典と根拠
- ORDレコード
- ord-ffa97678b837498c89ba742f81691cfe
- 出典データセット
- uspto-grants-1989_03
- 特許番号
- US04814352
反応ノート
読み込み中…