FORFARANDE FOR FRAMSTELLNING AV DIAMIDER GENOM OMSETTNING AV EN DIKARBONSYRA MED KARBAMID I KLORSULFONSYRA ELLER RYKANDE SVAVELSYRA

FORFARANDE FOR FRAMSTELLNING AV DIAMIDER GENOM OMSETTNING AV EN DIKARBONSYRA MED KARBAMID I KLORSULFONSYRA ELLER RYKANDE SVAVELSYRA

1439314 Preparation of diamides AKZO NV 21 Feb 1975 [6 March 1974] 7331/75 Heading C2C Diamides of the general formula in which X represents the radical which may optionally be substituted by one or more alkyl groups having from 1 to 5 carbon atoms, alkoxy groups having from 1 to 5 carbon atoms and/...

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Bibliographische Detailangaben
Hauptverfasser: H ZENGEL, M BERGFELD
Format: Patent
Sprache:swe
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:1439314 Preparation of diamides AKZO NV 21 Feb 1975 [6 March 1974] 7331/75 Heading C2C Diamides of the general formula in which X represents the radical which may optionally be substituted by one or more alkyl groups having from 1 to 5 carbon atoms, alkoxy groups having from 1 to 5 carbon atoms and/or halogen atoms, are prepared by reacting a dicarboxylic acid corresponding to the general formula with urea in chlorosulphonic acid or in at least 10% by weight oleum as reaction medium at a temperature in the range of from 30‹ to 200‹ C.