Arylalkyl esters of 4-amino-6-(substituted phenyl)-picolinates and 6-amino-2-(substituted phenyl)-pyrimidinecarboxylates and their use as selective herbicides for crops

• US 9,169,217 B2
• Filed: 10/09/2014
• Issued: 10/27/2015
• Est. Priority Date: 01/25/2011
• Status: Active Grant

• Current Assignee: Corteva Agriscience LLC (Corteva, Inc.)
• Original Assignee: Dow Agrosciences LLC (Corteva, Inc.)
• Inventors: Yerkes, Carla N., Lowe, Christian T., Eckelbarger, Joseph D., Epp, Jeffrey B., Guenthenspberger, Katherine A., Siddall, Thomas L., Schmitzer, Paul R.
• Primary Examiner(s): RAO, DEEPAK R
• Application Number:
  US14/510,192
• Publication Number:
  US 20150025238A1
• Time in Patent Office: 383 Days
• Field of Search: 544/298, 544/329
• US Class Current: 1/1
• 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: C07D 213/73 Unsubstituted amino or imino radicals
• CPC Class Codes: C07D 213/79 Acids; Esters
• CPC Class Codes: C07D 239/34 One oxygen atom
• CPC Class Codes: C07D 239/42 One nitrogen atom nitro radicals C07D239/30
• CPC Class Codes: C07D 239/47 One nitrogen atom and one oxygen or sulfur atom, e.g. cytosine
• CPC Class Codes: C07D 405/12 linked by a chain containing hetero atoms as chain links

Abstract

Arylalkyl esters of 4-aminopicolinic acids and 6-amino-4-pyrimidinecarboxylates are herbicides for control of weeds especially those species common to rice and wheat cropping systems and in pasture management programs.

Claims

1. A compound of Formula IA:

2. The compound of claim 1 in which Y represents substituted phenyl.

3. The compound of claim 1 in which Z represents OCH₃.

4. The compound of claim 1 in which R¹ and R² represent H.

5. The compound of claim 1 in which R³ represents a benzyl.

6. The compound of claim 1 in which R³ represents an unsubstituted or ortho-, meta- or para-monosubstituted benzyl.