Verfahren zur Herstellung von halogenierten o-Hydroxydiphenylverbindungen

There is described a four step process for the production of halogeno-o-hydroxydiphenyl compounds having the formulain which X is -O-or -CH2-;m is 1 to 3; andn is 1 or 2;wherein in the first step, a diphenyl compound is chlorinated; in a second step the chlorinated compound is acylated in a Friedel-...

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Bibliographic Details
Main Authors KULKARNI, SURENDRA UMESH, MUDALIAR, CHANDRASEKHAR DAYAL, NIVALKAR, KISHORE RAMACHANDRA, NADKARNI, PRADEEP JEEVAJI, EKKUNDI, VADIRAJ SUBBANNA
Format Patent
LanguageGerman
Published 22.08.2002
Edition7
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
AGRICULTURE
ANIMAL HUSBANDRY
BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES
CHEMISTRY
FISHING
FORESTRY
HUMAN NECESSITIES
HUNTING
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
ORGANIC CHEMISTRY
PEST REPELLANTS OR ATTRACTANTS
PLANT GROWTH REGULATORS
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF
SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
TRAPPING
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Summary:There is described a four step process for the production of halogeno-o-hydroxydiphenyl compounds having the formulain which X is -O-or -CH2-;m is 1 to 3; andn is 1 or 2;wherein in the first step, a diphenyl compound is chlorinated; in a second step the chlorinated compound is acylated in a Friedel-Crafts reaction and optionally again chlorinated after the acylation; in a third step the acyl compound is oxidised; and in a fourth step the oxidized compound is hydrolyzed.The compounds of formula (1) are useful for the protection of organic materials against microorganisms.
Bibliography:Application Number: DE19986002470T