Water → HCID 21188596, 화합물

HRID 1383962

반응식

HRID 1383962 반응식
[H-].[Na+].[Cl:3][C:4]1[CH:21]=[CH:20][C:7]([O:8][CH2:9][C:10]2[NH:11][C:12]3[C:18]([CH3:19])=[CH:17][CH:16]=[CH:15][C:13]=3[N:14]=2)=[CH:6][CH:5]=1.[CH2:22]([O:24][C:25]([CH:27]([CH2:31][C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1)[CH2:28][CH2:29]Br)=[O:26])[CH3:23].O>CN(C)C=O>[CH2:22]([O:24][C:25]([CH:27]([CH2:31][C:32]1[CH:33]=[CH:34][CH:35]=[CH:36][CH:37]=1)[CH2:28][CH2:29][N:14]1[C:13]2[CH:15]=[CH:16][CH:17]=[C:18]([CH3:19])[C:12]=2[N:11]=[C:10]1[CH2:9][O:8][C:7]1[CH:20]=[CH:21][C:4]([Cl:3])=[CH:5][CH:6]=1)=[O:26])[CH3:23]

참가 물질

6

반응물 4

HCID 962WaterHCID 24758Sodium hydrideHCID 21188482Ethyl 2-benzyl-4-bromobutanoateHCID 178423973HCID 178423973, 화합물

생성물 1

HCID 21188596HCID 21188596, 화합물수율 117.8%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매2회

실험 절차

A sodium hydride solution (60% in oil, 810 mg, 20.3 mmol) was washed with hexanes (2×50 ml) and then diluted with N,N-dimethylformamide (100 ml). At room temperature, under a nitrogen atmosphere, 2-[(4-chlorophenoxy)methyl]-4-methylbenzimidazole (5.0 g, 18.3 mmol) was then added in one portion. The resulting mixture was then stirred at room temperature for thirty minutes, and then 3-(ethoxycarbonyl)-4-phenylbutyl bromide (5.79 g, 20.3 mmol) in N,N-dimethylformamide (10 ml) was added dropwise. Upon completion of this addition, the reaction mixture was stirred for about six hours at a temperature of 70-80° C. The reaction mixture was then cooled to room temperature, poured into water (500 ml), and then extracted with ethyl acetate (500 ml). The organic fraction was washed once with water (500 ml) and then dried over potassium carbonate. The solvents were removed in vacuo, yielding 10.28 grams of a dark oil. The crude material was further purified by flash silica gel chromatography, eluting with a gradient solvent of methylene chloride to 9:1 methylene chloride:ethyl acetate. The fractions containing the desired title product were combined and concentrated in vacuo to yield 8.08 grams (93%) of a viscous yellow oil.

후처리

  1. additionUpon completion of this addition
  2. stirringthe reaction mixture was stirred for about six hours at a temperature of 70-80° C
  3. temperatureThe reaction mixture was then cooled to room temperature
  4. extractionextracted with ethyl acetate (500 ml)
  5. washThe organic fraction was washed once with water (500 ml)
  6. dry with materialdried over potassium carbonate
  7. customThe solvents were removed in vacuo

출처 및 근거

ORD 기록
ord-cf1eeb2e26c04411ac59ca0c904c6338
출처 데이터셋
uspto-grants-2001_07
특허 번호
US06255494B1

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