Vinyl Chloride → 1,1-Dichloro-4-methyl-3-pentanone

Participants

Reaction Steps

Anhydrous aluminium chloride (27.2 g) was added to a stirred solution of 2-methylpropionyl chloride (23.4 g) in dry trichloromethane (100 ml) with external cooling to between 0° C. and 15° C. Over a period of 1 hour chloroethene (20 g) was passed through the mixture held at 24°-26° C., after which stirring was continued for a further 40 minutes. The reaction mixture was then poured onto crushed ice, the organic layer was separated, dried over magnesium sulphate and distilled under reduced pressure to obtain a colourless liquid of 1,1-dichloro-4-methyl-3-pentanone. Yield 23 g.

Provenance & Evidence