Processes for the preparation of pesticidal compounds

• US 9,174,962 B2
• Filed: 10/17/2014
• Issued: 11/03/2015
• 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, Roth, Gary, DeAmicis, Carl, Gray, Kaitlyn, Zhang, Yu, Muhuhi, Joseck M., Whiteker, Greg, Clark, Thomas
• Primary Examiner(s): Morris, Patricia L
• Application Number:
  US14/517,594
• Publication Number:
  US 20150112074A1
• Time in Patent Office: 382 Days
• Field of Search: 546/276.1
• US Class Current: 1/1
• CPC Class Codes: A01N 43/56 1,2-Diazoles; Hydrogenated 1,2-diazoles
• 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 N-(3-chloro-1-(pyridin-3-yl)-1H-pyrazol-4-yl-N-ethylpropanamide (2a)

2. A process according to claim 1, wherein the base is sodium bicarbonate.

3. A process according to claim 1 in which the 3-chloro-N-ethyl-1-(pyridin-3-yl)-1H-pyrazol-amine (1d)