Abstract: Improved methods for preparing chemical precursors to sulfonyl chloride III, which are important intermediates in the preparation of pyroxsulam herbicide, are provided. Also provided are compounds of Formula III, Formula VII, and IV, wherein R1 is a C1-C6 alkyl, X is Cl or OH, Y is halogen, OH, or OR2, and R2 is a C1-C6 alkyl.
Type:
Application
Filed:
December 20, 2019
Publication date:
January 27, 2022
Applicant:
Geneva Agriscience LLC
Inventors:
Jossian Oppenheimer, Matthias S. Ober, Mark E. Ondari