Thionyl Chloride → HCID 54563404, Verbindung
Reaktionsgleichung
[CH3:1][C:2]1([CH3:18])[CH:4]([CH:5]=[C:6]([Br:14])[C:7]2[CH:12]=[CH:11][C:10]([Cl:13])=[CH:9][CH:8]=2)[CH:3]1[C:15](O)=[O:16].S(Cl)([Cl:21])=O>C(Cl)(Cl)(Cl)Cl>[CH3:1][C:2]1([CH3:18])[CH:4]([CH:5]=[C:6]([Br:14])[C:7]2[CH:12]=[CH:11][C:10]([Cl:13])=[CH:9][CH:8]=2)[CH:3]1[C:15]([Cl:21])=[O:16]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
59 g (0.2 mol) of 2,2-dimethyl-3-(2-bromo-2-(4-chloro-phenyl)-vinyl)-cyclopropanecarboxylic acid were dissolved in 500 ml of carbon tetrachloride, and 119 g of thionyl chloride were slowly added dropwise at 25° C., while stirring. The mixture was then heated to the reflux temperature for 4 hours. When the reaction period had ended, excess thionyl chloride and carbon tetrachloride were distilled off under a waterpump vacuum. The oil which remained was distilled. 33.7 g (53.8% of theory) of 2,2-dimethyl-3-(2-bromo-2-(4-chloro-phenyl)-vinyl)-cyclopropanecarboxylic acid chloride were obtained as a colorless liquid with a boiling point of 165°-166° C. under 8 mm Hg.