Acetic Anhydride → 4-Tert-butyl-2-(5-formylbenzofuran-2-yl)thiazole
반응식
[C:1]([C:5]1[N:6]=[C:7]([CH2:10][O:11][C:12]2[CH:17]=[CH:16][C:15]([CH:18]=[O:19])=[CH:14][C:13]=2[CH:20]=O)[S:8][CH:9]=1)([CH3:4])([CH3:3])[CH3:2].C(OC(=O)C)(=O)C>C1(C)C(C)=CC=CC=1>[C:1]([C:5]1[N:6]=[C:7]([C:10]2[O:11][C:12]3[CH:17]=[CH:16][C:15]([CH:18]=[O:19])=[CH:14][C:13]=3[CH:20]=2)[S:8][CH:9]=1)([CH3:4])([CH3:3])[CH3:2]참가 물질
4
반응 조건
- 온도
- 130 °C
실험 절차
A mixture of 4-tert-butyl-2-(2,4-diformylphenoxymethyl)thiazole (0.95 g) and acetic anhydride (12.9 ml) in dried xylene (100 ml) was stirred at 130° C. for 27 hours. After being cooled, the resulting mixture was concentrated in reduced pressure to give a residue. The residue was crystallized with diisopropyl ether. The resulting crystals were collected by filtration and washed with diisopropyl ether to give 4-tert-butyl-2-(5-formylbenzofuran-2-yl)thiazole (11.01 g).