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:
Jun. 07, 2022
Filed:
Jan. 22, 2019
Adama Makhteshim, Ltd., Beer Sheva, IL;
Thomas Zell, Beer Sheva, IL;
Boris Rubinov, Beer Sheva, IL;
ADAMA MAKHTESHIM, LTD., Beer Sheva, IL;
Abstract
The present invention provides an improved process for preparing 5-chloro-2-[(3,4,4-trifluoro-3-buten-1-yl)thio]-thiazole comprising reacting 2-[(3,4,4-trifluoro-3-buten-1-yl)thio]-thiazole with N-chlorosuccinimide (NCS) in the presence of water, the improvement comprising performing the step of reacting the compound of formula (II) with NCS in the presence of a reduced amount of water. The present invention provides an improved process for preparing 5-chloro-2-[(3, 4,4-trifluoro-3-buten-1-yl)thio]-thiazole comprising reacting 2-[(3, 4,4-trifluoro-3-buten-1-yl)thio]-thiazole with N-chlorosuccinimide (NCS) in the presence of water, the improvement comprising performing the step of reacting the compound of formula (II) with an excess molar amount of NCS.