Processo para a preparação de 2-alquil-6-metil-N-(1'-metóxi-2'-propil)-anilina e processo para a preparação de compostos

A process for the preparation of 2-alkyl-6-methyl-N-(1'methoxy-2'-propyl)-aniline by catalytic reductive alkylation wherein at least one mole equivalent of methoxyacetone is reacted with one mole equivalent of 2-alkyl-6-methyl-aniline in a liquid medium without an additional solvent, in th...

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Bibliographische Detailangaben
Hauptverfasser:	PETER FLATT DR, ROLF BADER DR, PAUL RADIMERSKI DR
Format:	Patent
Sprache:	por
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS AGRICULTURE ANIMAL HUSBANDRY APPARATUS THEREFOR BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY FISHING FORESTRY GENERAL METHODS OF ORGANIC CHEMISTRY HUMAN NECESSITIES HUNTING METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PEST REPELLANTS OR ATTRACTANTS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PLANT GROWTH REGULATORS PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF THEIR RELEVANT APPARATUS TRANSPORTING TRAPPING
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Beschreibung
Zusammenfassung:	A process for the preparation of 2-alkyl-6-methyl-N-(1'methoxy-2'-propyl)-aniline by catalytic reductive alkylation wherein at least one mole equivalent of methoxyacetone is reacted with one mole equivalent of 2-alkyl-6-methyl-aniline in a liquid medium without an additional solvent, in the presence of a platinised carbon catalyst and hydrogen and in the presence of an acid cocatalyst under a hydrogen pressure of between 2 x 10 and 1 x 10 Pa at a temperature between 20 and 80 DEG C, characterised in that the reaction mixture contains water from the beginning of the reaction and after the hydrogenation, base is added, the reaction mixture is filtered to separate the catalyst and the title compound recovered from the filtrate. The process is particularly useful for the preparation of N-substituted chloracetanilide herbicides.