Title:
METHOD FOR THE CONTINUOUS SYNTHESIS OF MONOALKYL-HYDRAZINES WITH A FUNCTIONALISED ALKYL GROUP
Document Type and Number:
WIPO Patent Application WO2005058801
Kind Code:
A8
Abstract:
The invention relates to a method for the continuous synthesis of monoalkyl-hydrazines with a functionalised alkyl group. The inventive method is characterised in that it comprises a step consisting in demixing a solution containing the synthesised monoalkyl-hydrazine, by reacting an anhydrous amine with monochloramine, in an organic phase and an aqueous phase with the addition of anhydrous sodium hydroxide. The invention can be used to obtain perfect selectivity in relation to monoalkyl-hydrazine without the presence of the di- and tri-substituted forms thereof. According to the invention, the starting amine which has not reacted is collected and reused directly without any additional treatment.
Inventors:
DELALU HENRI (FR)
COLAS-DURICHE CECILE (FR)
BERTHET JACQUES (FR)
LEURENT PHILIPPE (FR)
COLAS-DURICHE CECILE (FR)
BERTHET JACQUES (FR)
LEURENT PHILIPPE (FR)
Application Number:
PCT/FR2004/003286
Publication Date:
July 20, 2006
Filing Date:
December 17, 2004
Export Citation:
Assignee:
ISOCHEM SA (FR)
CENTRE NAT RECH SCIENT (FR)
UNIV CLAUDE BERNARD LYON (FR)
DELALU HENRI (FR)
COLAS-DURICHE CECILE (FR)
BERTHET JACQUES (FR)
LEURENT PHILIPPE (FR)
CENTRE NAT RECH SCIENT (FR)
UNIV CLAUDE BERNARD LYON (FR)
DELALU HENRI (FR)
COLAS-DURICHE CECILE (FR)
BERTHET JACQUES (FR)
LEURENT PHILIPPE (FR)
International Classes:
C07C241/02
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