Process for the preparation of dichloroacetyl chloride

Details Process for the preparation of dichloroacetyl chloride Process for the preparation of dichloroacetyl chloride

1994-04-28

1995-07-18

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415789, 562860, C07C 5100

Patent

active

054338310

ABSTRACT:
The invention relates to a process for the preparation of dichloroacetyl chloride by oxidation of trichloroethylene under pressure and at elevated temperature in the presence of a certain secondary aliphatic or cycloaliphatic amine of the formula HNR.sup.1 R.sup.2 in which R.sup.1 and R.sup.2 are identical or different and are an alkyl radical having 1 to 10 carbon atoms, where at least one of the radicals R.sup.1 and R.sup.2 has a tertiary structure, or R.sup.1 and R.sup.2 together with the nitrogen atom form a 5- to 10-membered ring, where at least one of the carbon atoms adjacent to the nitrogen is a tertiary carbon atom. Good yields of the acid chloride and low trichloroethylene oxide contents are obtained in one process step.

REFERENCES:
patent: 2292129 (1942-08-01), Kirkbride
patent: 3630867 (1971-12-01), Petz
patent: 3884785 (1975-05-01), Hoelle
patent: 4007224 (1977-02-01), Pitt
patent: 5030753 (1991-07-01), Freyer

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