Oxalyl chloride → 6-(Trifluoromethyl)benzo[b]thiophene-2-carbonyl chloride
Reaktionsgleichung
[C:1](Cl)(=O)[C:2]([Cl:4])=[O:3].[F:7][C:8]([F:22])([F:21])[C:9]1[CH:10]=[CH:11][C:12]2[CH:16]=C(C(O)=O)[S:14][C:13]=2[CH:20]=1>CN(C=O)C>[F:22][C:8]([F:7])([F:21])[C:9]1[CH:10]=[CH:11][C:12]2[CH:16]=[C:1]([C:2]([Cl:4])=[O:3])[S:14][C:13]=2[CH:20]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
Oxalyl chloride (2.29 mmol, 0.20 mL) was added to a solution of 6-(trifluoromethyl)benzo[b]thiophene-2-carboxylic acid (2.03 mmol, 500 mg) CH2Cl2 (15 mL). DMF (15 μL) was added and the resulting mixture was stirred for 4 h at room temperature. The resulting solution was concentrated to yield 6-(trifluoromethyl)benzo[b]thiophene-2-carbonyl chloride, which was used in the next step without purification.