Thionyl Chloride → HCID 54563404, compound

Participants

Reaction Steps

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.

Provenance & Evidence