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:
May. 26, 2009
Filed:
Nov. 30, 2007
Thomas Pitterna, Basel, CH;
Henry Szczepanski, Wallbach, CH;
Peter Maienfisch, Basel, CH;
Ottmar Franz Huter, Lorrach, DE;
Thomas Rapold, Basel, CH;
Marcel Senn, Basel, CH;
Thomas Gobel, Lorrach, DE;
Anthony Cornelius O'sullivan, Basel, CH;
Thomas Pitterna, Basel, CH;
Henry Szczepanski, Wallbach, CH;
Peter Maienfisch, Basel, CH;
Ottmar Franz Huter, Lorrach, DE;
Thomas Rapold, Basel, CH;
Marcel Senn, Basel, CH;
Thomas Gobel, Lorrach, DE;
Anthony Cornelius O'Sullivan, Basel, CH;
Syngenta Crop Protection, Inc., Greensboro, NC (US);
Abstract
A process for the preparation of a compound of formula I wherein R is a range of organic groups and X is a leaving group which process comprises a) reacting a compound of the formula II where R is defined for formula (I) with a water-removing reagent; or b) for the preparation of a compound of formula (I) wherein K is halogen or a sulfonate, reacting a compound of the formula III where R is defined for formula (I) with a halogenating agent or a sulfonylating agent; or c) for the preparation of a compound of formula (I) wherein X is halogen, reacting a compound of the formula IV where R is as defined for formula (I) and R2 and R3 are defined organic groups with a compound of the formula halogen-C(—O)—O—C1-C8alkyl, halogen-C(—O)—O-aryl or halogen-C(—O)—O-benzyl.