Title:
METHOD FOR PREPARATION OF 2-(2,3-DIMETHYLPHENYL)-1-PROPANAL
Document Type and Number:
WIPO Patent Application WO/2013/011156
Kind Code:
A3
Abstract:
The invention discloses a method for preparation of 2-(2,3-dimethylphenyl)-1-propanal from bromo 2,3-dimethylbenzene and aceton, its use in perfumes and its use for the preparation of medetomidine.
Inventors:
ZARAGOZA DOERWALD FLORENCIO (CH)
KULESZA ANNA (CH)
ELZNER STEPHAN (CH)
BUJOK ROBERT (PL)
WROBEL ZBIGNIEW (PL)
WOJCIECHOWSKI KRZYSZTOF (PL)
KULESZA ANNA (CH)
ELZNER STEPHAN (CH)
BUJOK ROBERT (PL)
WROBEL ZBIGNIEW (PL)
WOJCIECHOWSKI KRZYSZTOF (PL)
Application Number:
PCT/EP2012/072797
Publication Date:
April 04, 2013
Filing Date:
November 15, 2012
Export Citation:
Assignee:
LONZA AG (CH)
International Classes:
C07C47/228; C07C5/48; C07C15/02; C07C29/40; C07C33/20; C07C45/58; C07D233/58; C07D301/03; C07D301/24; C07D303/04; C11B9/00
Domestic Patent References:
| WO2011070069A1 | 2011-06-16 | |||
| WO1998045237A1 | 1998-10-15 |
Other References:
MUKHERJEE-MÜLLER G ET AL: "176. Säurekatalysierte Umlagerungen von 1,5.Dimethyl-6-methyliden-tricyclo[3.2.1.0 2,7]oct-3-en-8endo-olen", HELVETICA CHIMICA ACTA, VERLAG HELVETICA CHIMICA ACTA, BASEL, CH, vol. 60, no. 5, 31 December 1977 (1977-12-31), pages 1758 - 1780, XP002683671, ISSN: 0018-019X
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