Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
1979-08-13
1985-08-06
Warren, Charles F.
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
568 56, 568639, C07C 1732
Patent
active
045337772
ABSTRACT:
A process for the preparation of an aromatic trifluoromethyl compound which comprises contacting an aromatic compound of the formula ##STR1## wherein R.sup.1 denotes hydrogen, alkyl, aryl, aralkyl, aryloxy, arylthio, polyhalogenoalkoxy or polyhalogenoalkylthio and the aromatic substituents R.sup.1 can in turn be substituted by halogen, alkyl, polyhalogenoalkyl, polyhalogenoalkoxy, polyhalogenoalkylthio, nitro, chlorocarbonyl or chlorosulfonyl, and R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently hydrogen, halogen or alkyl and two adjacent radicals of the group R.sup.1 to R.sup.5 can conjointly form a three-membered to five-membered alkylene radical, with carbon tetrachloride and hydrogen fluoride at a temperature in the range of 50.degree. C. to 140.degree. C. Certain new aromatic trifluoromethyl compounds which can prepared by such a process are also disclosed.
REFERENCES:
patent: 2273922 (1961-01-01), Benning et al.
patent: 3136822 (1964-06-01), Frainier
patent: 4155940 (1979-05-01), Marhold et al.
patent: 4207266 (1980-06-01), Opie
Klauke Erich
Marhold Albrecht
Bayer Aktiengesellschaft
Boska Joseph A.
Warren Charles F.
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