Trifluoroacetic acid → 4-[2-[(E)-(4-tert-butylphenyl)methylideneamino]oxyethoxy]-2-[4-(trifluoromethyl)benzoyl]oxybenzoic acid

HRID 29651

反応式

HRID 29651 の反応式
C([O:5][C:6](=[O:42])[C:7]1[CH:12]=[CH:11][C:10]([O:13][CH2:14][CH2:15][O:16]/[N:17]=[CH:18]/[C:19]2[CH:24]=[CH:23][C:22]([C:25]([CH3:28])([CH3:27])[CH3:26])=[CH:21][CH:20]=2)=[CH:9][C:8]=1[O:29][C:30](=[O:41])[C:31]1[CH:36]=[CH:35][C:34]([C:37]([F:40])([F:39])[F:38])=[CH:33][CH:32]=1)(C)(C)C.FC(F)(F)C(O)=O>C(Cl)Cl.[Cl-].[Na+].O>[C:25]([C:22]1[CH:23]=[CH:24][C:19](/[CH:18]=[N:17]/[O:16][CH2:15][CH2:14][O:13][C:10]2[CH:11]=[CH:12][C:7]([C:6]([OH:42])=[O:5])=[C:8]([O:29][C:30](=[O:41])[C:31]3[CH:32]=[CH:33][C:34]([C:37]([F:39])([F:40])[F:38])=[CH:35][CH:36]=3)[CH:9]=2)=[CH:20][CH:21]=1)([CH3:28])([CH3:26])[CH3:27]

参加物

5

反応物 2

HCID 6422Trifluoroacetic acidHCID 87734367tert-butyl 4-[2-[(E)-(4-tert-butylphenyl)methylideneamino]oxyethoxy]-2-[4-(trifluoromethyl)benzoyl]oxybenzoate

生成物 1

HCID 111568084-[2-[(E)-(4-tert-butylphenyl)methylideneamino]oxyethoxy]-2-[4-(trifluoromethyl)benzoyl]oxybenzoic acid収率 86%

試薬・触媒・溶媒 2

HCID 6344Dichloromethane溶媒HCID 57417360Sodium chloride; water溶媒

実験手順

To a solution of 4-{2-[({(E)-[4-(tert-butyl)phenyl]methylidene}amino)oxy]ethoxy}-2-{[4-(trifluoromethyl)benzoyl]oxy}benzoic acid tert-butyl ester (0.387 g, 0.66 mmol) in methylene chloride (15 mL) was added trifluoroacetic acid (0.400 mL, 2.83 mmol). The reaction was stirred at room temperature overnight, poured into brine and the aqueous layer extracted with ethyl acetate. The combined organics dried over anhydrous magnesium sulfate and concentrated in vacuo. The residue was purified by flash chromatography using ethyl acetate/hexanes (20/80)+1% formic acid to afford the title compound (0.300 g, 86%) as a white solid. mp=146.3-147.9° C.; mass spectrum (+APCI, M+H) m/z 530. 1H NMR (400 MHz, DMSO-d6); δ 12.70 (bs, 1H), 8.28 (d, 2H), 8.24 (s, 1H), 7.95 (m, 3H), 7.52 (d, 2H), 7.40 (d, 2H), 7.03 (m, 2H), 4.44 (t, 2H), 4.38 (t, 2H), 1.26 (s, 9H). Elemental analysis: Calcd. for C28H26F3NO6: C, 63.51; H, 4.95; N, 2.65, Found: C, 63.15; H, 4.90; N, 2.64.

後処理

  1. extractionthe aqueous layer extracted with ethyl acetate
  2. dry with materialThe combined organics dried over anhydrous magnesium sulfate
  3. concentrationconcentrated in vacuo
  4. customThe residue was purified by flash chromatography

出典と根拠

ORDレコード
ord-aeddcc038b524471aa2618b1336daa7a
出典データセット
uspto-grants-2008_09
特許番号
US07420083B2

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