Hydrochloric Acid → N-(2-fluoro-4-chloro-5-cyclopentyloxyphenyl)-3,4,5,6-tetrahydrophthalimide

HRID 21464

반응식

HRID 21464 반응식
[CH:1]1(Br)[CH2:5][CH2:4][CH2:3][CH2:2]1.[F:7][C:8]1[CH:13]=[C:12]([Cl:14])[C:11]([OH:15])=[CH:10][C:9]=1[N:16]1[C:20](=[O:21])[C:19]2[CH2:22][CH2:23][CH2:24][CH2:25][C:18]=2[C:17]1=[O:26].C(=O)([O-])[O-].[K+].[K+].Cl>C(#N)C>[F:7][C:8]1[CH:13]=[C:12]([Cl:14])[C:11]([O:15][CH:1]2[CH2:5][CH2:4][CH2:3][CH2:2]2)=[CH:10][C:9]=1[N:16]1[C:20](=[O:21])[C:19]2[CH2:22][CH2:23][CH2:24][CH2:25][C:18]=2[C:17]1=[O:26]

참가 물질

6

반응물 4

HCID 313Hydrochloric AcidHCID 8728BromocyclopentaneHCID 11430Potassium CarbonateHCID 1586511H-Isoindole-1,3(2H)-dione, 2-(4-chloro-2-fluoro-5-hydroxyphenyl)-4,5,6,7-tetrahydro-

생성물 1

HCID 15279390N-(2-fluoro-4-chloro-5-cyclopentyloxyphenyl)-3,4,5,6-tetrahydrophthalimide수율 30.5%

시약·촉매·용매 1

HCID 6342Acetonitrile용매

실험 절차

Cyclopentyl bromide (1.2 g, 8.1 mmol) was added to a solution of N-(2-fluoro-4-chloro-5-hydroxyphenyl)-3,4,5,6-tetrahydrophthalimide (2.0 g, 6.76 mmol) and potassium carbonate (0.60 g, 4.34 mmol) in acetonitrile (50 ml), followed by stirring for 2 hours under refluxing. After completion of the reaction, 1N hydrochloric acid (20 ml) was added to the resulting reaction mixture, and the mixture was extracted with ethyl acetate (20 ml×3 times). The organic layer was washed with water, dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. Ethanol (5 ml) was added to the resulting pale yellow oily substance, and the precipitated N-(2-fluoro-4-chloro-5-cyclopentyloxyphenyl)-3,4,5,6-tetrahydrophthalimide as a white solid (0.75 g, 2.06 mmol, 30.5% yield) was isolated by filtration. Spectral data and the like are as shown in Example 1.

후처리

  1. temperatureunder refluxing
  2. additionwas added to the resulting reaction mixture
  3. extractionthe mixture was extracted with ethyl acetate (20 ml×3 times)
  4. washThe organic layer was washed with water
  5. dry with materialdried over anhydrous magnesium sulfate
  6. distillationthe solvent was distilled off under reduced pressure
  7. additionEthanol (5 ml) was added to the resulting pale yellow oily substance

출처 및 근거

ORD 기록
ord-6ffe5c73de174ae694835dd266949a3e
출처 데이터셋
uspto-grants-1995_06
특허 번호
US05424277

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