US 11,718,604 B2
4-amino-6-(1,3-benzodioxole)picolinates and their use as herbicides
Jeremy Kister, Carmel, IN (US); Norbert M. Satchivi, Carmel, IN (US); Thomas L. Siddall, Zionsville, IN (US); Lindsey G. Horty, Indianapolis, IN (US); Noormohamed M. Niyaz, Indianapolis, IN (US); and Jeffrey B. Epp, Noblesville, IN (US)
Assigned to DOW AGROSCIENCES LLC
Appl. No. 17/52,939
Filed by Dow AgroSciences LLC, Indianapolis, IN (US)
PCT Filed May 9, 2019, PCT No. PCT/US2019/031428
§ 371(c)(1), (2) Date Nov. 4, 2020,
PCT Pub. No. WO2019/217617, PCT Pub. Date Nov. 14, 2019.
Claims priority of provisional application 62/670,538, filed on May 11, 2018.
Prior Publication US 2021/0230147 A1, Jul. 29, 2021
Int. Cl. C07D 405/04 (2006.01); A01N 25/32 (2006.01); A01N 43/40 (2006.01); A01N 43/90 (2006.01)
CPC C07D 405/04 (2013.01) [A01N 25/32 (2013.01); A01N 43/40 (2013.01)] 20 Claims
 
1. A compound defined by Formula I:

OG Complex Work Unit Chemistry
wherein
R2 is halogen, C1-C4 alkyl, C2-C4 alkenyl, C2-C4 haloalkenyl, or C1-C4 alkoxy; and
R3 and R4 are independently hydrogen, C1-C6 alkyl, or formyl;
or an agriculturally acceptable salt, ester, or N-oxide thereof
wherein the compound defined by Formula I has improved herbicidal activity as compared to the following compound:

OG Complex Work Unit Chemistry