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:
Sep. 14, 2010
Filed:
Apr. 16, 2009
Thomas Pitterna, Stein, CH;
Henry Szczepanski, Stein, CH;
Peter Mainenfisch, Stein, CH;
Ottmar Franz Huter, Lorrach, DE;
Thomas Rapold, Munchwilen, CH;
Marcel Senn, Basel, CH;
Thomas Gobel, Lorrach, DE;
Anthony Cornelius O'sullivan, Stein, CH;
Thomas Pitterna, Stein, CH;
Henry Szczepanski, Stein, CH;
Peter Mainenfisch, Stein, CH;
Ottmar Franz Huter, Lorrach, DE;
Thomas Rapold, Munchwilen, CH;
Marcel Senn, Basel, CH;
Thomas Gobel, Lorrach, DE;
Anthony Cornelius O'Sullivan, Stein, CH;
Syngenta Crop Protection, Inc., Greensboro, NC (US);
Abstract
A process is provided for preparing compounds having the general formula I wherein R is a range of organic groups and X is a leaving group. The process comprises reacting a compound of formula II with a water-removing reagent. When X is halogen or a sulfonate, the compound of formula I may be prepared by reacting a compound of the formula III with a halogenating agent or a sulfonylating agent. Alternatively, when X is halogen, the compound of formula I can be prepared by reacting a compound of the formula IV where R2 and R2 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.