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US 9,434,712 B2Granted
Processes for the preparation of pesticidal compounds
AssigneeDow AgroSciences LLC
InventorsQiang Yang, Beth Lorsbach, Gary Roth, Noormohamed M. Niyaz, Jeffrey Nissen, Ronald Ross, Jr., Greg Whiteker, Carl DeAmicis, Kaitlyn Gray, Yu Zhang
Life of this patent
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Abstract
The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds.
Claims8
A process comprising reacting (E)-2-(2-(pyridin-3-yl)hydrazono)acetic acid (6a) with acrylonitrile and a source of chlorine, in the presence of a base, to yield 3-chloro-1-(pyridin-3-yl)-4,5-dihydro-1H-pyrazole-5-carbonitrile (6b)
Dependencies are inferred from the claim text.