A PROCESS FOR THE PREPARATION OF SUBSTITUTED TRANSCINNAMALDEHYDE, A NATURAL YELLOW DYE, FROM PHENYLPROPANE DERIVATIVES

Details for Australian Patent Application No. 2001266307 (hide)

Owner COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH

Inventors SINHA, Arun, Kumar; JOSHI, Bhupendra, Prasad; DOGRA, Ruchi

Pub. Number AU-A-2001266307

PCT Pub. Number WO2002/072709

Priority 09/805,832 14.03.01 US

Filing date 21 May 2001

Wipo publication date 24 September 2002

International Classifications

C09B 057/00 Other synthetic dyes of known constitution

C07C 045/30 Preparation of compounds having CO groups bound only to carbon or hydrogen atoms

C07C 047/277 Compounds having CHO groups

C07C 047/228 Compounds having CHO groups

C07C 045/28 Preparation of compounds having CO groups bound only to carbon or hydrogen atoms

C09B 061/00 Dyes of natural origin prepared from natural sources

Event Publications

20 March 2003 Application Open to Public Inspection

  Published as AU-A-2001266307

12 February 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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