(19)

(11)

EP 1 786 749 A1

(12)

(43) Date of publication: 23.05.2007 Bulletin 2007/21 (21) Application number: 04744096.1 (22) Date of filing: 02.08.2004

(51) International Patent Classification (IPC):  C07C 45/46(2006.01) B01J 29/18(2006.01) B01J 29/70(2006.01) B01J 29/08(2006.01) B01J 29/50(2006.01) C07C 49/76(2006.01) (86) International application number: PCT/IB2004/002443 (87) International publication number: WO 2006/016197 (16.02.2006 Gazette 2006/07)

(84) Designated Contracting States: DE GB IT (71) Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH New Delhi 100 001 (IN)	(72) Inventors: JASRA, Raksh Vir, Ctral Salt & Marine Chem. Res. Inst. Gujarat 364 002 (IN) TYAGI, Beena, Ctral Salt & Marine Chem. Res. Inst. Gujarat 364 002 (IN) BADHEKA, Yogiraj Mansukhlal, Ctral Salt & Marine Chem. Res. Inst. Gujarat 364 002 (IN) (74) Representative: Pöpping, Barbara  Cabinet Plasseraud 52 rue de la Victoire 75440 Paris Cedex 09 75440 Paris Cedex 09 (FR)