The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 26, 2004
Filed:
May. 08, 2002
Johannes Paul Pachlatko, Seltisberg, CH;
Thomas Pitterna, Basel, CH;
Volker Jungmann, Lörrach, DE;
Syngenta Participations AG, Basel, CH;
Abstract
Subject of the invention is a process for the preparation of a compound of formula (I) in which R -R represent, independently of each other hydrogen a substituent; m is 0, 1 or 2; n is 0, 1, 2 or 3; and the bonds marked with A, B, C, D, E and F indicate, independently of each other, that two adjacent carbon atoms are connected by a double bond, a single bond, a single bond and an epoxide bridge, or a single bond and a methylene bridge, including, where applicable, an E/Z isomer, a mixture of E/Z isomers, and/or a tautomer thereof, in each case in free form or in salt form, which process comprises I) bringing a compound of formula (II); wherein R -R , m, n, A, B, C, D, E and F have the same meanings as given for formula (I) above, into contact with a biocatalyst that is capable of specifically oxidising the alcohol at position 4″ in order to form a compound of formula (III), in which R , R , R , R , R , R , R , m, n, A, B, C, D, E and F have the meanings given for formula (I); and 2) reacting the compound of formula (III) with an amine of the formula HN(R )R , wherein R and R have the same meanings as given for formula (I), and which is known, in the presence of a reducing agent.