Processes for the preparation of pesticidal compounds

• US 9,199,942 B2
• Filed: 03/24/2015
• Issued: 12/01/2015
• Est. Priority Date: 10/17/2013
• Status: Expired due to Fees

• Current Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Original Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Inventors: Yang, Qiang, Lorsbach, Beth, Whiteker, Gregory T., DeAmicis, Carl, Muhuhi, Joseck M.
• Primary Examiner(s): Morris, Patricia L
• Application Number:
  US14/666,826
• Publication Number:
  US 20150191433A1
• Time in Patent Office: 252 Days
• Field of Search: 548/372.5
• US Class Current: 1/1
• CPC Class Codes: A01N 43/56 1,2-Diazoles; Hydrogenated 1,2-diazoles
• CPC Class Codes: C07D 231/38 Nitrogen atoms nitro radicals C07D231/16
• CPC Class Codes: C07D 231/40 Acylated on said nitrogen atom
• CPC Class Codes: C07D 401/04 directly linked by a ring-member-to-ring-member bond

Abstract

The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds.

Claims

1. A process for the preparation of thioethers (4b) useful in the preparation of pesticidal thioethers (4c), (4d) and pesticidal sulfoxides (4e),

2. A The process according to claim 1, wherein R¹ is C₁-C₄ haloalkyl.

3. A The process according to claim 2, wherein R¹ is CH₂CH₂CF₃.

4. A The process according to claim 1, wherein R¹ is C₁-C₄ alkyl-C₃-C₆ halocycloalkyl.

5. A The process according to claim 4, wherein R¹ is CH₂(2,2-difluorocyclopropyl).

6. The process according to claim 1, wherein the base is potassium hydroxide.