Dow AgroSciences LLC produces agricultural chemicals for pest control and plant nutrition. The Company offers a wide range of products such as insecticides, herbicides, fumigants, and other chemicals. Dow AgroSciences serves customers globally.
In India, the Pharmaceutical business of Dow AgroSciences LLC is focused on Synthetic chloroplast transit peptides, Synergistic weed control from applications of aminopyralid and clopyralid, seed specific promoters identified by microarray analysis, Precision gene targeting to a particular locus in maize.
Dow Agrosciences LLC filed patent application numbered 9845/DELNP/2014 that is titled PROCESSES TO PRODUCE 2-(PYRIDINE-3-YL) THIAZOLES. This Patent Application has been granted as Patent number 317653.
The invention covers chemical compound. The invention disclosed in this document is related to the field of processes to produce certain 2-(pyridine-3-yl) thiazoles as intermediates for the synthesis of pesticidal thiazole amides. Compounds (I) and (II) are cyclized to produce compound (III). This step is conducted in the presence of a base when compound (II) is in the form of a salt. Suitable bases include, but are not limited to, sodium bicarbonate, potassium bicarbonate, sodium carbonate, cesium carbonate, potassium carbonate, sodium hydroxide, potassium hydroxide, sodium bisulfate, sodium acetate, potassium acetate, ammonium hydroxide, sodium methoxide, potassium methoxide, sodium ethoxide, potassium ethoxide, triethylamine and pyridine. The reaction can be conducted at ambient temperature and pressure, but higher or lower temperatures and pressures can be used, if desired. The reaction is conducted in a polar protic solvent. Examples of such solvents include, but are not limited to, n-butanol, isopropanol, n-propanol, ethandl, methanol, and water.
During patent examination, the patent examiner raised objections under Section 3(d) of the Indian Patents Act that the instant application discloses use of known process without any new product or using at least one new reactant.
As a response to the said objection, the applicant submitted that the claimed process is not known. Novelty has been proved. The present invention is efficient, cost effective and produces intermediates for synthesis of pesticidal thiazole amides to control pest populations.
Advocate Rahul Dev is a Patent Attorney & International Business Lawyer practicing Technology, Intellectual Property & Corporate Laws. He is reachable at rd (at) patentbusinesslawyer (dot) com & @rdpatentlawyer on Twitter.
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