FREMGANGSMAADE TIL FREMSTILLING AF 2,4,6-TRI-(3,5-DI-TERT-BUTYL-4-HYDROXYBENZYL)-MESITYLEN

A method for the production of 2,4,6-tri(3,5-ditertiary butyl-4-hydroxybenzyl)mesitylene which resides in treating a mesitylene solution in chloroalkane simultaneously with sulfuric acid used as a catalyst and a solution of 2,6-ditertiary butyl-4-methoxymethylphenol or bis-3,5-ditertiary butyl-4-hyd...

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Bibliographic Details
Main Authors YANSHEVSKY V A, LIAKUMOVICH A G, LATYSHEVA G G, STYSKIN E L, GURVICH Y A, RUTMAN G I, KUMOK S T, RYBAK A I, LOGUTOV I J, FILIPOVA R A, MICHUROV J I
Format Patent
LanguageDanish
Published 13.04.1978
Edition2
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC CHEMISTRY
PAINTS
POLISHES
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Summary:A method for the production of 2,4,6-tri(3,5-ditertiary butyl-4-hydroxybenzyl)mesitylene which resides in treating a mesitylene solution in chloroalkane simultaneously with sulfuric acid used as a catalyst and a solution of 2,6-ditertiary butyl-4-methoxymethylphenol or bis-3,5-ditertiary butyl-4-hydroxybenzyl ether in chloroalkane at a temperature of -20 DEG to +20 DEG C. This results in a reaction mixture consisting of an acid phase and an organic phase including the target product. The phases are separated. The organic phase is subjected to neutralization by the treatment thereof with gaseous ammonia used as an alkaline agent. The precipitate of ammonium sulfate is separated and chloroalkane is removed from the remaining solution. The proposed method makes it possible to obtain the target product with a yield of 88 to 90% and a melting temperature of 239 DEG to 239.5 DEG C. The method prevents the formation of effluents, and the amount of phenol wastes is considerably reduced.
Bibliography:Application Number: DK19770004506