HCID 53693383, compound → HCID 13102421, compound

Participants

Reaction Conditions

Reaction Steps

57 g (0.256 mol) of 1-chloro-3,3-dimethyl-2-phenoxy-1,4-pentadiene in a mixture of 250 ml of formic acid and 50 ml of concentrated hydrochloric acid were heated to 40° C. in the course of 1 hour. The mixture was then diluted with 400 ml of methylene chloride and ice, and was extracted three times by shaking with 2N sodium hydroxide solution. After the methylene chloride phase had been dried over sodium sulphate, the solvent was removed. 36 g of product (96% of theory) remained and were distilled. 32.2 g (86% of theory) of 5-chloro-3,3-dimethylpent-1-en-4-one of boiling point 81° to 84° C./24 mm Hg were obtained. ##STR27##

Provenance & Evidence