Acetyl chloride → HCID 19349925, Verbindung
Reaktionsgleichung
[OH:1][N:2]=[C:3]([NH2:11])[C:4]1[CH:9]=[CH:8][CH:7]=[C:6]([I:10])[CH:5]=1.[C:12](Cl)(=O)[CH3:13]>N1C=CC=CC=1.C(OCC)(=O)C>[I:10][C:6]1[CH:5]=[C:4]([C:3]2[N:11]=[C:12]([CH3:13])[O:1][N:2]=2)[CH:9]=[CH:8][CH:7]=1Komponenten
5
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
N′-Hydroxy-3-iodobenzamidine (1.80 g, 6.87 mmol) obtained in Step 1 was dissolved in pyridine (14 mL), and the mixture was stirred at room temperature for 1 hour after adding acetyl chloride (0.551 mL, 6.87 mmol). The mixture was cooled to room temperature after further stirring at 90° C. for 4 hours. After diluting the mixture with ethyl acetate, the organic layer was washed with 1 mol/L hydrochloric acid and saturated brine, and dried over anhydrous magnesium sulfate. The residue obtained upon concentration under reduced pressure was then purified by silica gel column chromatography to give 3-(3-iodophenyl)-5-methyl-1,2,4-oxadiazole (756 mg, 39%).