Process for preparation of diphenyl ether compounds

Process for preparation of diphenyl ether compounds

A process for producing fomesafen from acifluorfen comprises the steps of (a) converting acifluorfen to its acid chloride, (b) coupling the acid chloride so formed with methanesulphonamide to form crude fomesafen and (c) purifying the crude fomesafen, characterized in that each of the steps is carri...

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Hauptverfasser: B.D. GOTT, S.T. BROWN, J.P. MUXWORTHY
Format: Patent
Sprache:eng
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ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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creator B.D. GOTT
S.T. BROWN
J.P. MUXWORTHY
description A process for producing fomesafen from acifluorfen comprises the steps of (a) converting acifluorfen to its acid chloride, (b) coupling the acid chloride so formed with methanesulphonamide to form crude fomesafen and (c) purifying the crude fomesafen, characterized in that each of the steps is carried out in a single common solvent, which is preferably a chloroalkane. Preferably the steps are telescoped together so that there is no isolation of the product for any step until fomesafen is obtained.
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MUXWORTHY</creatorcontrib><description>A process for producing fomesafen from acifluorfen comprises the steps of (a) converting acifluorfen to its acid chloride, (b) coupling the acid chloride so formed with methanesulphonamide to form crude fomesafen and (c) purifying the crude fomesafen, characterized in that each of the steps is carried out in a single common solvent, which is preferably a chloroalkane. 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GOTT</creatorcontrib><creatorcontrib>S.T. BROWN</creatorcontrib><creatorcontrib>J.P. MUXWORTHY</creatorcontrib><title>Process for preparation of diphenyl ether compounds</title><description>A process for producing fomesafen from acifluorfen comprises the steps of (a) converting acifluorfen to its acid chloride, (b) coupling the acid chloride so formed with methanesulphonamide to form crude fomesafen and (c) purifying the crude fomesafen, characterized in that each of the steps is carried out in a single common solvent, which is preferably a chloroalkane. 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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
title Process for preparation of diphenyl ether compounds
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