Tert-Butanesulfinamide → (+/-)-N-((5-benzyl-2-(2,5-difluorophenyl)oxazol-4-yl)methylene)-2-methylpropane-2-sulfinamide

HRID 404849ノート

反応式

HRID 404849 の反応式
[CH2:1]([C:8]1[O:12][C:11]([C:13]2[CH:18]=[C:17]([F:19])[CH:16]=[CH:15][C:14]=2[F:20])=[N:10][C:9]=1[CH:21]=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:23][C:24]([S:27]([NH2:29])=[O:28])([CH3:26])[CH3:25]>C1COCC1.[Cl-].[Na+].O.CCOC(C)=O>[CH2:1]([C:8]1[O:12][C:11]([C:13]2[CH:18]=[C:17]([F:19])[CH:16]=[CH:15][C:14]=2[F:20])=[N:10][C:9]=1[CH:21]=[N:29][S:27]([C:24]([CH3:26])([CH3:25])[CH3:23])=[O:28])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

6

反応物 2

HCID 3382465Tert-ButanesulfinamideHCID 866938955-Benzyl-2-(2,5-difluorophenyl)oxazole-4-carbaldehyde

生成物 1

HCID 67451222(+/-)-N-((5-benzyl-2-(2,5-difluorophenyl)oxazol-4-yl)methylene)-2-methylpropane-2-sulfinamide

試薬・触媒・溶媒 3

HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒HCID 57417360Sodium chloride; water溶媒

実験手順

To a solution of 5-benzyl-2-(2,5-difluorophenyl)oxazole-4-carbaldehyde (898 mg, 3.0 mmol) in THF (30.0 mL) was added (±)-2-methylpropane-2-sulfinamide (364 mg, 3.0 mmol), and Ti(OEt)4 (1.37 mL, 6.6 mmol). The reaction mixture was stirred for 4 h at room temperature. The reaction mixture was diluted with brine (30 mL) and EtOAc (60 mL) followed by addition of Celite®. Then, the mixture was vigorously stirred for 1 h, and filtered. The filtrate was extracted by EtOAc. The organic layers was washed with water and brine, dried over anhydrous Na2SO4, filtered, and concentrated. The crude product (770 mg, 64%) was purified by automatic column chromatography to yield (±)—N-((5-benzyl-2-(2,5-difluorophenyl)oxazol-4-yl)methylene)-2-methylpropane-2-sulfinamide as pale yellow solid. LC/MS (uplc): MH+ 403.0, 1.21 min.

後処理

  1. additionfollowed by addition of Celite®
  2. stirringThen, the mixture was vigorously stirred for 1 h
  3. filtrationfiltered
  4. extractionThe filtrate was extracted by EtOAc
  5. washThe organic layers was washed with water and brine
  6. dry with materialdried over anhydrous Na2SO4
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe crude product (770 mg, 64%) was purified by automatic column chromatography

出典と根拠

ORDレコード
ord-21ceffe65e544104a510217a93c07df7
出典データセット
uspto-grants-2014_06
特許番号
US08748626B2

反応ノート

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