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Application filed by Chemie Linz AgfiledCriticalChemie Linz Ag
Priority to AT77866ApriorityCriticalpatent/AT260910B/en
Application grantedgrantedCritical
Publication of AT260910BpublicationCriticalpatent/AT260910B/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Description
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Verfahren zur Herstellung von 2-Methyl-4-chlorphenoxyalkansäuren
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Process for the preparation of 2-methyl-4-chlorophenoxyalkanoic acids
EMI1.1
Claims (1)
undPATENTANSPRUCH :
Verfahren zur Herstellung von 2-Methyl-4-chlorphenoxyalkansäuren durch Chlorierung einer in einem organischen Lösungsmittel, insbesondere einem chlorierten Kohlenwasserstoff, gelösten oder suspendierten 2-Methylphenoxyalkansäure mit der äquivalenten Menge oder einem geringen Überschuss an Sulfurylchlorid bei maximal 150 C und Abdestillieren des Lösungsmittels, da d u r ch g ek en n - zeichnet, dassdieChlorierunginGegenwartvonAktivkohlealsKatalysatorstattfindet.
and PATENT CLAIM:
Process for the preparation of 2-methyl-4-chlorophenoxyalkanoic acids by chlorination of a 2-methylphenoxyalkanoic acid dissolved or suspended in an organic solvent, in particular a chlorinated hydrocarbon, with the equivalent amount or a slight excess of sulfuryl chloride at a maximum of 150 ° C. and distilling off the solvent, there by g ek en n - indicates that the chlorination takes place in the presence of activated carbon as a catalyst.
AT77866A1966-01-281966-01-28
Process for the preparation of 2-methyl-4-chlorophenoxyalkanoic acids
AT260910B
(en)