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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
ノート
印刷プレビュー

反応式

HRID 31595 の反応式
[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
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 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

生成物 1

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

試薬・触媒・溶媒 1

HCID 21867641
Toluene methanol
溶媒
2 回

実験手順

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.

後処理

  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)

出典と根拠

ORDレコード
ord-469f18ae65824be7aecb339c381a8835
出典データセット
uspto-grants-2008_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07425634B2

反応ノート

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