[F:1][C:2](=[C:7]([F:9])[F:8])[CH2:3][C:4](O)=[O:5].C(Cl)(=O)C([Cl:13])=O>CN(C=O)C>[F:1][C:2](=[C:7]([F:9])[F:8])[CH2:3][C:4]([Cl:13])=[O:5]Reaction of 3,4,4-trifluoro-3-butenoic acid (IV) with oxalyl chloride in the presence of DMF as a catalyst without any solvent to give 3,4,4-trifluoro-3-butenoyl chloride (V).
Wird geladen…