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Ammonium Chloride → 2-[2-(2-chlorophenyl)ethyl]-6-(4-fluoro-3-methylphenyl)-4-hydroxymethyl-2H-pyridazin-3-one

HRID 1348794
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HRID 1348794 반응식
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH2:8][CH2:9][N:10]1[C:15](=[O:16])[C:14]([C:17](OC)=[O:18])=[CH:13][C:12]([C:21]2[CH:26]=[CH:25][C:24]([F:27])=[C:23]([CH3:28])[CH:22]=2)=[N:11]1.O.O.O.O.O.O.[Cl-].[Ce+3].[Cl-].[Cl-].[BH4-].[Na+].[Cl-].[NH4+]>C1COCC1.CO>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH2:8][CH2:9][N:10]1[C:15](=[O:16])[C:14]([CH2:17][OH:18])=[CH:13][C:12]([C:21]2[CH:26]=[CH:25][C:24]([F:27])=[C:23]([CH3:28])[CH:22]=2)=[N:11]1
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참가 물질

6

반응물 4

HCID 25517Ammonium ChlorideHCID 4311764Sodium borohydrideHCID 22347666cerium(III) chloride hexahydrateHCID 225622482-[2-(2-chlorophenyl)ethyl]-6-(4-fluoro-3-methylphenyl)-4-methoxycarbonyl-2H-pyridazin-3-one

생성물 1

HCID 225623192-[2-(2-chlorophenyl)ethyl]-6-(4-fluoro-3-methylphenyl)-4-hydroxymethyl-2H-pyridazin-3-one수율 11%

시약·촉매·용매 1

HCID 21899815MeOH tetrahydrofuran용매

실험 절차

To a solution of 2-[2-(2-chlorophenyl)ethyl]-6-(4-fluoro-3-methylphenyl)-4-methoxycarbonyl-2H-pyridazin-3-one (480 mg, 1.20 mmol) in THF/methanol (2 mL/1 mL), cerium(III) chloride hexahydrate (425 mg, 1.20 mmol) was added at −15° C., followed by the addition of sodium borohydride (45 mg, 1.20 mmol). After stirred for 10 minutes, a saturated aqueous solution of ammonium chloride was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was dried over anhydrous sodium sulfate, and was concentrated under reduced pressure. Further, the concentrate was purified by column chromatography on silica gel [hexane/ethyl acetate (2/1)] to yield the title compound as a pale yellow syrupy substance (yield: 11.0%).

후처리

  1. extractionthe mixture was extracted with ethyl acetate
  2. dry with materialThe extract was dried over anhydrous sodium sulfate
  3. concentrationwas concentrated under reduced pressure
  4. customFurther, the concentrate was purified by column chromatography on silica gel [hexane/ethyl acetate (2/1)]

출처 및 근거

ORD 기록
ord-c90e3851495f4d1a8a68fb66a7e26226
출처 데이터셋
uspto-grants-2007_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07211577B2

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