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m-Chloroperbenzoic acid → 2-(((4-((2-methoxy-1,3-dioxan-5-yl)methoxy)-3-methylpyridin-2-yl)methyl)sulfinyl)-1H-benzimidazole

HRID 31595
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HRID 31595 반응식
[CH3:1][O:2][CH:3]1[O:8][CH2:7][CH:6]([CH2:9][O:10][C:11]2[CH:16]=[CH:15][N:14]=[C:13]([CH2:17][S:18][C:19]3[NH:23][C:22]4[CH:24]=[CH:25][CH:26]=[CH:27][C:21]=4[N:20]=3)[C:12]=2[CH3:28])[CH2:5][O:4]1.ClC1C=CC=C(C(OO)=[O:37])C=1.C(=O)([O-])O.[Na+]>C1(C)C=CC=CC=1.CO>[CH3:1][O:2][CH:3]1[O:8][CH2:7][CH:6]([CH2:9][O:10][C:11]2[CH:16]=[CH:15][N:14]=[C:13]([CH2:17][S:18]([C:19]3[NH:20][C:21]4[CH:27]=[CH:26][CH:25]=[CH:24][C:22]=4[N:23]=3)=[O:37])[C:12]=2[CH3:28])[CH2:5][O:4]1
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참가 물질

5

반응물 3

HCID 70297m-Chloroperbenzoic acidHCID 516892Sodium BicarbonateHCID 597925912-(((4-((2-methoxy-1,3-dioxan-5-yl)methoxy)-3-methylpyridin-2-yl)methyl)thio)-1H-benzimidazole

생성물 1

HCID 120031202-(((4-((2-methoxy-1,3-dioxan-5-yl)methoxy)-3-methylpyridin-2-yl)methyl)sulfinyl)-1H-benzimidazole수율 65.9%

시약·촉매·용매 1

HCID 21867641
Toluene methanol
용매
2회

실험 절차

To a toluene/methanol (10:1) (20 ml) solution of the 2-(((4-((2-methoxy-1,3-dioxan-5-yl)methoxy)-3-methylpyridin-2-yl)methyl)thio)-1H-benzimidazole (324 mg, 807 μmol) obtained in the step (6d), a toluene/methanol (10:1) (5 ml) solution of 3-chloroperbenzoic acid (193 mg, 726 μmol as the content was regarded as 65%) was added dropwise at −50° C. to −60° C. for 5 minutes in a nitrogen atmosphere. The mixture was stirred for 2 hours in the same conditions. To the reaction mixture, a saturated aqueous solution of sodium hydrogen carbonate was added and the resultant mixture was extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated. The residue was purified by silica gel column chromatography (NH silica gel, elution solvent: ethyl acetate/methanol) to obtain the title compound (222 mg, 65.9% yield), which is a cis and trans (1:1) mixture, as a light yellow foam.

후처리

  1. additionwas added dropwise at −50° C. to −60° C. for 5 minutes in a nitrogen atmosphere
  2. extractionthe resultant mixture was extracted with ethyl acetate
  3. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue was purified by silica gel column chromatography (NH silica gel, elution solvent: ethyl acetate/methanol)

출처 및 근거

ORD 기록
ord-469f18ae65824be7aecb339c381a8835
출처 데이터셋
uspto-grants-2008_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07425634B2

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