[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]([CH2:7][CH2:8][C:9]([OH:11])=O)[CH:2]=1.C(Cl)(=O)C([Cl:15])=O>C(Cl)Cl.CN(C=O)C>[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]([CH2:7][CH2:8][C:9]([Cl:15])=[O:11])[CH:2]=1To a solution of 300 mg (1.99 mmol) 3-pyridine propionic acid in 10 mL CH2Cl2 was added one drop DMF and 2.3 mL (4.56 mmol) oxalyl chloride, and the mixture stirred at rt for 4 h. The volatiles were evaporated under reduced pressure and the material used crude in the following procedure.
Wird geladen…