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Water → 3-cyano-N-(2,4-dimethoxybenzyl)-4-[2-pyridazin-4-yl-4-(trifluoromethyl)phenoxy]-N-1,2,4-thiadiazol-5-ylbenzenesulfonamide

HRID 46360
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 46360
[N:1]1[CH:6]=[CH:5][C:4]([C:7]2[CH:12]=[C:11]([C:13]([F:16])([F:15])[F:14])[CH:10]=[CH:9][C:8]=2[OH:17])=[CH:3][N:2]=1.[C:18]([C:20]1[CH:21]=[C:22]([S:27]([N:30]([CH2:36][C:37]2[CH:42]=[CH:41][C:40]([O:43][CH3:44])=[CH:39][C:38]=2[O:45][CH3:46])[C:31]2[S:35][N:34]=[CH:33][N:32]=2)(=[O:29])=[O:28])[CH:23]=[CH:24][C:25]=1F)#[N:19].C(=O)([O-])[O-].[K+].[K+].O>CS(C)=O>[C:18]([C:20]1[CH:21]=[C:22]([S:27]([N:30]([CH2:36][C:37]2[CH:42]=[CH:41][C:40]([O:43][CH3:44])=[CH:39][C:38]=2[O:45][CH3:46])[C:31]2[S:35][N:34]=[CH:33][N:32]=2)(=[O:29])=[O:28])[CH:23]=[CH:24][C:25]=1[O:17][C:8]1[CH:9]=[CH:10][C:11]([C:13]([F:15])([F:16])[F:14])=[CH:12][C:7]=1[C:4]1[CH:5]=[CH:6][N:1]=[N:2][CH:3]=1)#[N:19]
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Komponenten

6

Edukt 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 580422543-cyano-N-(2,4-dimethoxybenzyl)-4-fluoro-N-(1,2,4-thiadiazol-5-yl)benzenesulfonamideHCID 1357416972-(Pyridazin-4-yl)-4-(trifluoromethyl)phenol

Produkt 1

HCID 594366013-cyano-N-(2,4-dimethoxybenzyl)-4-[2-pyridazin-4-yl-4-(trifluoromethyl)phenoxy]-N-1,2,4-thiadiazol-5-ylbenzenesulfonamide
Ausbeute 36,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 679Dimethyl SulfoxideLösungsmittel

Versuchsvorschrift

To a solution of 2-pyridazin-4-yl-4-(trifluoromethyl)phenol (Preparation 712, 60.6 mg, 0.25 mmol) in dimethylsulfoxide (2.5 mL) was added 3-cyano-N-(2,4-dimethoxybenzyl)-4-fluoro-N-1,2,4-thiadiazol-5-ylbenzenesulfonamide (Preparation 68, 109.2 mg, 0.25 mmol) followed by potassium carbonate (101.7 mg, 0.74 mmol). The resulting mixture was stirred overnight at room temperature under nitrogen. The reaction mixture was poured into water (125 mL), and extracted with ethyl acetate (3×25 mL). The combined organic extract was washed successively with aqueous sodium hydroxide solution (1M, 15 mL) and saturated aqueous sodium chloride solution (4×25 mL), dried over anhydrous sodium sulfate, filtered and the solvent removed in vacuo. The resulting residue was purified by column chromatography using a gradient of 25-40% v/v ethyl acetate in heptane to give the title compound as a white foam (59.7 mg, 36%).

Aufarbeitung

  1. extractionextracted with ethyl acetate (3×25 mL)
  2. extractionThe combined organic extract
  3. washwas washed successively with aqueous sodium hydroxide solution (1M, 15 mL) and saturated aqueous sodium chloride solution (4×25 mL)
  4. dry with materialdried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. customthe solvent removed in vacuo
  7. customThe resulting residue was purified by column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-b1bdaf0d1f884d7f8676eeeca4655472
Quelldatensatz
uspto-grants-2013_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08541588B2

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