Reaktionsgleichung
C([NH:4][C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][CH:14]=1)[C:10](=[O:11])[O:9][CH2:8]2)(=O)C.[H-].[Na+].[OH:17][C:18]([C:40]([F:43])([F:42])[F:41])([CH2:31][CH:32]([C:34]1[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=1)[CH3:33])[CH2:19]OS(C1C=CC(C)=CC=1)(=O)=O>CN(C)C=O>[OH:17][C:18]([C:40]([F:41])([F:42])[F:43])([CH2:31][CH:32]([C:34]1[CH:35]=[CH:36][CH:37]=[CH:38][CH:39]=1)[CH3:33])[CH2:19][NH:4][C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][CH:14]=1)[C:10](=[O:11])[O:9][CH2:8]2Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
760 mg of 5-acetamido-phthalide in 20 ml of dimethylformamide is mixed at 0° C. with 144 mg of sodium hydride (80% in mineral oil), and, after 20 minutes, with 800 mg of 4-toluenesulfonic acid-(2-hydroxy-4-phenyl-2-trifluoromethyl-pentyl)-ester. After 16 hours at 60° C., the solvent is concentrated by evaporation in a vacuum, the residue is dissolved in ethyl acetate, washed with water, dried (Na2SO4) and concentrated by evaporation. After chromatography on silica gel with cyclohexane/ethyl acetate (2:1), 266 mg of 5-(2-hydroxy-4-phenyl-2-trifluoromethyl-pentylamino)-phthalide, melting point 110° C., is obtained.
Aufarbeitung
- waitAfter 16 hours at 60° C.
- concentrationthe solvent is concentrated by evaporation in a vacuum
- dissolutionthe residue is dissolved in ethyl acetate
- washwashed with water
- dry with materialdried (Na2SO4)
- concentrationconcentrated by evaporation
Quellen und Nachweise
- ORD-Eintrag
- ord-692a560ef18f4a229de8f0ea11f684a1
- Quelldatensatz
- uspto-grants-2001_06
- Patentnummer
- US06245804B1
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