PREPARATION OF ORTHO-METHYL ANILINES FROM ORTHO-AMINO BENZYL SULFOXIDES

Prepn. of o-methylanilines(I) comprises reacting an oaminobenzyl sulphoxide(II) with a nonoxidising acid halide in inert solvent to produce a soln. of corresp. o-aminobenzyl halide(III) and S-cpd. by- prods. This soln. is treated with a basic tert. amine to form a quat. o-aminobenzyl ammonium halide...

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Hauptverfasser:	MILLER MICHAEL JEROME, CHUPP JOHN PAUL
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Prepn. of o-methylanilines(I) comprises reacting an oaminobenzyl sulphoxide(II) with a nonoxidising acid halide in inert solvent to produce a soln. of corresp. o-aminobenzyl halide(III) and S-cpd. by- prods. This soln. is treated with a basic tert. amine to form a quat. o-aminobenzyl ammonium halide salt(IV). The salt (IV) is pptd., leaving S-cpd. by-prods. in soln., and catalytically hydrogenated to form(I). (I) are useful in e.g. herbicide prodn.