[S:1]1[C:5]([C:6]2[CH:7]=[C:8]([CH2:12][OH:13])[CH:9]=[CH:10][CH:11]=2)=[CH:4][N:3]=[CH:2]1>C(Cl)Cl.O=[Mn]=O>[S:1]1[C:5]([C:6]2[CH:7]=[C:8]([CH:9]=[CH:10][CH:11]=2)[CH:12]=[O:13])=[CH:4][N:3]=[CH:2]1A solution of (3-(thiazol-5-yl)phenyl)methanol (162 mg; 0.84 mmol) in anh. DCM (6 ml) was treated with MnO2 (1.104 g; 12.70 mmol), and the resulting mixture was stirred at rt, under nitrogen, for 3 h. The resulting reaction mixture was then filtered over celite, and the separated solids were washed with DCM. The filtrate was concentrated to dryness under reduced pressure giving 3-(thiazol-5-yl)benzaldehyde as an orange solid. LC-MS (conditions A): tR=0.58 min.; [M+H]+: 190.02 g/mol.
Wird geladen…