2,6-Dimethylaniline → 3-Isoxazolecarboxamide, N-(2,6-dimethylphenyl)-5-ethyl-

반응식

[CH2:1]([C:3]1[O:7][N:6]=[C:5]([C:8]([OH:10])=O)[CH:4]=1)[CH3:2].C(C1NC=CN=1)(C1NC=CN=1)=O.[CH3:23][C:24]1[CH:30]=[CH:29][CH:28]=[C:27]([CH3:31])[C:25]=1[NH2:26]>CN(C=O)C>[CH3:23][C:24]1[CH:30]=[CH:29][CH:28]=[C:27]([CH3:31])[C:25]=1[NH:26][C:8]([C:5]1[CH:4]=[C:3]([CH2:1][CH3:2])[O:7][N:6]=1)=[O:10]

참가 물질

실험 절차

5.1 g (0.04 mole) of 5-ethyl isoxazole 3-carboxylic acid are dissolved in 100 ml of DMF under nitrogen, 13 g (0.08 mole) of carbonyl diimidazole are added and the mixture is stirred for 2 h at room temperature. 9.7 g (0.08 mole) of 2,6-dimethyl aniline are added and the mixture is stirred again for 48 h. After removal of the precipitate formed by filtration and evaporation of the solvent, the residue is crystallized from petroleum ether. M.p.=82°. The yield is 73%.