Dow Global Technolgoies LLC

Corteva Agriscience LLC

Amaruka Hazari

Arkady L Krasovskiy

Robert D J Froese

Matthias Stefan Ober

Heather Spinney

Matthew D Christianson

Jossian Oppenheimer

Andrew M Camelio

Michael Gullo

Jayachandran Devaraj

Mark E Ondari

Will Kruper

Improved methods for preparing chemical precursors to sulfonyl chloride III, which are important intermediates in the preparation of pyroxsulam herbicide are provided. Specifically, these precursors are compounds of Formulas VII and/or VIII, and IX, wherein R is a C-Calkyl, Ris a C-Calkyl, X is Cl or OH, Y is halogen, OH, or OR, and Ris a C-Calkyl. 

Preparation of sulfonamide herbicide process intermediates

Embodiments are directed to monophosphaguanidine ligands and the bis ligated metal-complexes formed therefrom, wherein the metal-ligand complexes are polymerization catalysts comprising the following structure (I). 

Bis-ligated phosphaguanidine group IV metal complexes and olefin polymerization catalysts produced therefrom

Growing community of inventors

Carmel, IN, United States of America

Amaruka Hazari