2-substituted-6-amino-5-alkyl, alkenyl or alkynyl-4-pyrimidinecarboxylic acids and 6-substituted-4-amino-3-alkyl, alkenyl or alkynyl picolinic acids and their use as herbicides

• US 8,658,791 B2
• Filed: 08/16/2012
• Issued: 02/25/2014
• Est. Priority Date: 10/02/2007
• Status: Active Grant

• Current Assignee: Corteva Agriscience LLC (Corteva, Inc.)
• Original Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Inventors: Epp, Jeffrey B., Schmitzer, Paul R., Balko, Terry W., Yerkes, Carla N.
• Primary Examiner(s): Wilson, James O
• Assistant Examiner(s): MASHA, OLUWAFEMI L
• Application Number:
  US13/587,239
• Publication Number:
  US 20130210631A1
• Time in Patent Office: 558 Days
• Field of Search: None
• US Class Current: 544/255
• CPC Class Codes: A01N 43/40 six-membered rings
• CPC Class Codes: A01N 43/54 1,3-Diazines; Hydrogenated 1,3-diazines
• CPC Class Codes: A01N 47/18 containing a —O—CO—N< group, or a thio analogue thereof, directly attached to a heterocyclic or cycloaliphatic ring
• CPC Class Codes: C07D 213/79 Acids; Esters
• CPC Class Codes: C07D 239/42 One nitrogen atom nitro radicals C07D239/30

Abstract

6-Amino-4-pyrimidinecarboxylic acids having alkyl, alkenyl or alkynyl substituents in the 5-position and 4-aminopicolinic acids having alkyl, alkenyl or alkynyl substituents in the 3-position, and their amine and acid derivatives, are potent herbicides demonstrating a broad spectrum of weed control.

Claims

1. A compound selected from the group consisting of

2. The compound of claim 1, wherein the compound is:

3. The compound of claim 1, wherein the compound is:

4. The compound of claim 1, wherein the compound is:

5. The compound of claim 1, wherein the compound is:

6. The compound of claim 1, wherien the compound is:

7. The compound of claim 1, wherein the compound is:

8. The compound of claim 1, wherien the compound is:

9. The compound of claim 1, wherein the compound is:

10. The compound of claim 1, wherein the compound is:

11. The compound of claim 1, wherein the compound is:

12. The compound of claim 1, wherien the compound is:

13. The compound of claim 1, wherein the compound is

14. The compound of claim 1, wherein the compound is

15. The compound of claim 1, wherein the compound is

16. A herbicidal composition comprising an herbicidally effective amount of a compound according to claim 1, in a mixture with an agriculturally acceptable adjuvant or carrier.

17. A method of controlling undesirable vegetation which comprises applying an herbicidally effective amount of a compound according to claim 1 where preemergence or postemergence control of undesirable vegetation is desired.