IP Library › Granted Patent US 9,661,849
Granted Patent B2
US 9,661,849 · App. 14/829,174 · Granted May 30, 2017

Processes for the preparation of pesticidal compounds

Inventors: Qiang Yang (Zionsville, IN); Beth Lorsbach (Indianapolis, IN); Greg Whiteker (Carmel, IN); Gary Roth (Midland, MI); Carl DeAmicis (Indianapolis, IN); Thomas Clark (Midland, MI); Kaitlyn Gray (Freeland, MI); Yu Zhang (Carmel, IN); Joseck M. Muhuhi (Midland, MI)
Assignee: Dow AgroSciences LLC
A01N43/56C07D401/04
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Quick Facts
Patent No.
US 9,661,849
App. No.
14/829,174
Granted
May 30, 2017
Kind
B2
Abstract

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

Claims (10)

1. A process for the preparation of pesticidal thioethers (2b)

wherein R 1 is selected form the group consisting of C 1 -C 4 haloalkyl and C 1 -C 4 alkyl-C 3 -C 6 halocycloalkyl which comprises reacting N-(3-chloro-1-(pyridin-3-yl)-1H-pyrazol-4-yl)-N-ethylpropanamide (2a)

with a thiol HS—R 1 in the presence of a base.

2. A process according to claim 1 , wherein R 1 is C 1 -C 4 haloalkyl.

3. A process according to claim 1 , wherein R 1 is CH 2 CH 2 CF 3 .

4. A process according to claim 1 , wherein R 1 is C 1 -C 4 alkyl-C 3 -C 6 halocycloalkyl.

5. A process according to claim 1 , wherein R 1 is CH 2 (2,2-difluorocyclopropyl).

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

7. The process of claim 1 , wherein the reacting is carried out in the presence of a polar solvent.

8. The process of claim 7 , wherein the polar solvent is methanol.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 26, 2018
From: YANG, QIANG; LORSBACH, BETH; WHITEKER, GREGORY T.; ROTH, GARY; DEAMICIS, CARL; CLARK, THOMAS P.
To: DOW AGROSCIENCES LLC
Reel/Frame 045037/0043 →
Continuity (4)
Division 14517594 · Oct 17, 2014
Provisional Application 62039730 · Aug 20, 2014
Provisional Application 61892118 · Oct 17, 2013
Related Publication 20150351400A1 · Dec 10, 2015