4-Chlorophenyl chloroformate → [4-(5-Dimethylamino-pent-1-ynyl)-phenyl]-methyl-carbamic acid 4-chloro-phenyl ester
反応式
[CH3:1][N:2]([CH3:16])[CH2:3][CH2:4][CH2:5][C:6]#[C:7][C:8]1[CH:13]=[CH:12][C:11]([NH:14][CH3:15])=[CH:10][CH:9]=1.[CH:17]1[C:22]([O:23][C:24](Cl)=[O:25])=[CH:21][CH:20]=[C:19]([Cl:27])[CH:18]=1>O1CCOCC1.C([O-])(O)=O.[Na+]>[Cl:27][C:19]1[CH:20]=[CH:21][C:22]([O:23][C:24](=[O:25])[N:14]([C:11]2[CH:12]=[CH:13][C:8]([C:7]#[C:6][CH2:5][CH2:4][CH2:3][N:2]([CH3:16])[CH3:1])=[CH:9][CH:10]=2)[CH3:15])=[CH:17][CH:18]=1参加物
5
実験手順
A solution of 59 mg (0.27 mmol) of [4-(5-Dimethylamino-pent-1-ynyl)-phenyl]-methyl-amine in 0.3 ml dioxane was treated with 0.07 ml (0.55 mmol; 2 equivalents) Hünigsbase and dropwise with a solution of 0.05 ml (0.27 mmol) 4-chlorophenylchloroformate in 0.45 ml dioxane. The mixture was then immediately dissolved in aqueous saturated NaHCO3 IEt2O (3×). The organic phase was dried over Na2SO4 and evaporated. Flash column chromatography on silica gel with CH2Cl2/MeOH (95:5) yielded 55 mg (54%) of [4-(5-Dimethylamino-pent-1-ynyl)-phenyl]-methyl-carbamic acid 4-chloro-phenyl ester, MS: 371 (MH+, 1Cl).
後処理
- dry with materialThe organic phase was dried over Na2SO4
- customevaporated
出典と根拠
- ORDレコード
- ord-8486033ed4dc49d1bf9768fe3910d639
- 出典データセット
- uspto-grants-2004_01
- 特許番号
- US06683201B2
反応ノート
読み込み中…