Process for the preparation of 3-(2-chloro-2-(4-chloro-phenyl)-v

Details Process for the preparation of 3-(2-chloro-2-(4-chloro-phenyl)-v Process for the preparation of 3-(2-chloro-2-(4-chloro-phenyl)-v

1988-12-27

1990-01-30

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C07C 6140

Patent

active

048975052

ABSTRACT:
3-(2-chloro-2-(4-chloro-phenyl)-vinyl)2,2-dimethylcyclopropanecarboxylic acid and its derivatives are obtained by reactive 3-chloro-3(4-chlorophenyl)-propenal with chloromethyl isopropyl ketone in a first step and reacting the resulting 4,4-dimethyl-1,3,6-trichloro-1-(4-chlorophenyl)- hex-1-en-5-one, optionally without isolation, in the presence of aqueous bases or in the presence of alkoxides. The resulting carboxylic acids or carboxylic acid esters can be converted into their derivatives such as, for example, salts, esters, amides or halides by generally known methods.

REFERENCES:
patent: 4157397 (1979-06-01), Engel
patent: 4157447 (1979-06-01), Engel
patent: 4160842 (1979-07-01), Engel
patent: 4183942 (1980-06-01), Engel
Bhosale, S. S., Indian J. Chem., Sect. B, 24B(5), 543-546, 1985.
Lantzsch, R., Synthesis (11) 955-956, 1982.

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