Production of 5-methyl-N-aryl-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid with nitro compounds

Details for Australian Patent Application No. 2004224293 (hide)

Owner E.I. Dupont De Nemours and Company

Inventors Manzer, Leo Ernest

Agent Houlihan2

Pub. Number AU-A-2004224293

PCT Pub. Number WO2004/084633

Priority 10/396,050 24.03.03 US

Filing date 23 March 2004

Wipo publication date 7 October 2004

International Classifications

A01N 043/36 Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds

A61K 031/4015 - having oxo groups directly attached to the heterocyclic ring, e.g. piracetam, ethosuximide

C07D 207/12 Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom

Event Publications

25 August 2005 PCT application entered the National Phase

  PCT publication WO2004/084633 Priority application(s): WO2004/084633

9 August 2007 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(a). A direction to request examination has been given for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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2004224292-Production of 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5methylN-alkyl-2-pyrrolidone by reductive amination of leuvlinic acid esters with cyano compounds