Acetic Anhydride → 5-acetamido-N-(3,5-bis(trifluoromethyl)phenyl)-2-hydroxybenzamide
反応式
[NH2:1][C:2]1[CH:3]=[CH:4][C:5]([OH:25])=[C:6]([CH:24]=1)[C:7]([NH:9][C:10]1[CH:15]=[C:14]([C:16]([F:19])([F:18])[F:17])[CH:13]=[C:12]([C:20]([F:23])([F:22])[F:21])[CH:11]=1)=[O:8].[C:26](OC(=O)C)(=[O:28])[CH3:27]>CC(O)=O>[C:26]([NH:1][C:2]1[CH:3]=[CH:4][C:5]([OH:25])=[C:6]([CH:24]=1)[C:7]([NH:9][C:10]1[CH:11]=[C:12]([C:20]([F:21])([F:22])[F:23])[CH:13]=[C:14]([C:16]([F:17])([F:18])[F:19])[CH:15]=1)=[O:8])(=[O:28])[CH3:27]参加物
4
実験手順
5-Amino-N-(3,5-bis(trifluoromethyl)phenyl)-2-hydroxybenzamide (364.24 mg, 1 mmol) obtained in Example 31 was dissolved in acetic anhydride (0.09 ., 1 mmol), to which AcOH (3 ml) was added, followed by stirring at room temperature for 3 hours. The mixture was extracted by using ethylacetate. The extract was washed with saturated sodium hydrogen carbonate, and dried over MgSO4. After eliminating ethylacetate, the non-purified compound was purified by silica gel column chromatography (ethylacetate:hexane=1:1) to give 340 mg of the target compound (yield: 84%).