(19)
(11) EP 1 019 343 A1

(12)

(43) Date of publication:
19.07.2000 Bulletin 2000/29

(21) Application number: 96943148.5

(22) Date of filing: 27.12.1996
(51) International Patent Classification (IPC)7: C07C 2/72
(86) International application number:
PCT/FI9600/699
(87) International publication number:
WO 9724/305 (10.07.1997 Gazette 1997/30)
(84) Designated Contracting States:
DE GB IT

(30) Priority: 29.12.1995 FI 956325

(71) Applicant: Optatech Oy
02170 Espoo (FI)

(72) Inventors:
  • KIRICSI, Imre
    H-6723 Szeged (HU)
  • KOSKIMIES, Salme
    FIN-00850 Helsinki (FI)
  • CSICSERY, Sigmund, M.
    Lafayette, CA 94549 (US)

(74) Representative: Heikkinen, Esko Juhani et al
Berggren Oy AbP.O. Box 16
00101 Helsinki
00101 Helsinki (FI)

   


(54) PREPARATION OF 1-(2-METHYLBUTYL)-4-METHYLBENZENE