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Chloroacetic Acid → Tert-butyl 3-carboxymethoxy-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidine-1-carboxylate

HRID 1176268
ノート
印刷プレビュー

反応式

HRID 1176268 の反応式
[OH:1][CH:2]1[CH:7]([C:8]2[CH:13]=[CH:12][C:11]([O:14][CH2:15][CH2:16][CH2:17][O:18][CH2:19][C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=3[O:26][CH3:27])=[CH:10][CH:9]=2)[CH2:6][CH2:5][N:4]([C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[CH2:3]1.[H-].[Na+].Cl[CH2:38][C:39]([OH:41])=[O:40].Cl>CN(C)C=O>[C:39]([CH2:38][O:1][CH:2]1[CH:7]([C:8]2[CH:13]=[CH:12][C:11]([O:14][CH2:15][CH2:16][CH2:17][O:18][CH2:19][C:20]3[CH:25]=[CH:24][CH:23]=[CH:22][C:21]=3[O:26][CH3:27])=[CH:10][CH:9]=2)[CH2:6][CH2:5][N:4]([C:28]([O:30][C:31]([CH3:34])([CH3:33])[CH3:32])=[O:29])[CH2:3]1)([OH:41])=[O:40]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 300Chloroacetic AcidHCID 313Hydrochloric AcidHCID 24758Sodium hydrideHCID 15546933Tert-butyl 3-hydroxy-4-{4-[3-(2-methoxybenzyloxy) propoxy]phenyl}piperidine-1-carboxylate

生成物 1

HCID 68504714Tert-butyl 3-carboxymethoxy-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidine-1-carboxylate

試薬・触媒・溶媒 1

HCID 6228
Dimethylformamide
溶媒

反応条件

温度
60 °C

実験手順

A solution of 0.953 g of tert-butyl 3-hydroxy-4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}piperidine-1-carboxylate in 10 ml of N,N-dimethylformamide is admixed with stirring at room temperature with 0.16 g of sodium hydride dispersions (60%). The reaction mixture is stirred at 60° C. over 10 minutes, admixed with 0.191 g of chloroacetic acid and then stirred at 60° C. over 24 hours. The reaction mixture is admixed with 0.5N HCl and extracted with ethyl acetate (2×). The combined organic phases are washed with brine, dried over sodium sulphate and concentrated by evaporation. The title compound is obtained as a yellow oil from the residue by means of flash chromatography (SiO2 60F). Rf=0.20 (95:5 dichloromethane-methanol); Rt=5.18.

後処理

  1. stirringstirred at 60° C. over 24 hours
  2. extractionextracted with ethyl acetate (2×)
  3. washThe combined organic phases are washed with brine
  4. dry with materialdried over sodium sulphate
  5. concentrationconcentrated by evaporation

出典と根拠

ORDレコード
ord-f8088d9261bd4b61be6c547036cb852a
出典データセット
uspto-grants-2010_11
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07842688B2

反応ノート

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