Process for preparing 2,2-dichloroacetoacetyl chloride

Details Process for preparing 2,2-dichloroacetoacetyl chloride Process for preparing 2,2-dichloroacetoacetyl chloride

1982-06-01

1983-09-13

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 5162

Patent

active

044041497

ABSTRACT:
2,2-Dichloroacetoacetyl chloride having the formula: ##STR1## Process for producing 2,2-dichloroacetoacetyl chloride wherein acetyl chloride is reacted by means of a Lewis acid as a catalyst with chlorine at a temperature of 30.degree. to 60.degree. C. The mole ratio of acetyl chloride to the catalyst is from 1:0.005 to 1:0.5 and the mole ratio of acetyl chloride to the chlorine is from 1:0.1 to 1:1.5. The most preferred catalysts are aluminum chloride and aluminum bromide.

REFERENCES:
Journal of the Chemical Society, London, 1928, pp. 2779-2786.

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