Sodium hydride → (1-Benzyl-2-methyl-1H-indol-4-yloxy)-acetic acid methyl ester

HRID 3339

반응식

HRID 3339 반응식
[OH:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[CH:4]=[C:5]([CH3:18])[N:6]2[CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1.[H-].[Na+].Br[CH2:22][C:23]([O:25][CH3:26])=[O:24]>CN(C=O)C.O>[CH3:26][O:25][C:23](=[O:24])[CH2:22][O:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[CH:4]=[C:5]([CH3:18])[N:6]2[CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1

참가 물질

6

반응물 3

HCID 24758Sodium hydrideHCID 60984Methyl bromoacetateHCID 107523601-Benzyl-2-methyl-1H-indol-4-ol

생성물 1

HCID 10804819(1-Benzyl-2-methyl-1H-indol-4-yloxy)-acetic acid methyl ester수율 88%

시약·촉매·용매 2

HCID 962Water용매HCID 6228Dimethylformamide용매

실험 절차

4-Hydroxy-2-methyl-1-(phenylmethyl)-1H-indole (530 mg, 2.2 mmol) was added to 88 mg (2.2 mmol) of 60% NaH/mineral oil in 20 mL of DMF and the mixture stirred for 0.67 hours. Then, 0.21 mL (2.2 mmol) of methyl bromoacetate was added and stirring maintained for 17 hours. The mixture was diluted with water and extracted with ethyl acetate. The ethyl acetate solution was washed with brine, dried (MgSO4), and concentrated at reduced pressure. The residue was chromatographed on silica gel eluting with 20% EtOAc/hexane to give 597 mg (88% yield) of [[2-methyl-1-(phenylmethyl)-1H-indol-4-yl]oxy]acetic acid methyl ester, 140°-143° C.

후처리

  1. stirringstirring
  2. temperaturemaintained for 17 hours
  3. extractionextracted with ethyl acetate
  4. washThe ethyl acetate solution was washed with brine
  5. dry with materialdried (MgSO4)
  6. concentrationconcentrated at reduced pressure
  7. customThe residue was chromatographed on silica gel eluting with 20% EtOAc/hexane

출처 및 근거

ORD 기록
ord-19b0abee38be4025b9f496f094d7d0bd
출처 데이터셋
uspto-grants-1998_03
특허 번호
US05733923

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