US 12,274,264 B2
Piperonylic acid derivative and application thereof
Hongfei Wu, Liaoning (CN); Jingbo Xu, Liaoning (CN); Shaowu Liu, Liaoning (CN); Haibo Yu, Liaoning (CN); Lanfeng Ban, Liaoning (CN); Libao Xu, Liaoning (CN); Xueming Cheng, Liaoning (CN); Chunxiao Guo, Liaoning (CN); and Ningning Sun, Liaoning (CN)
Assigned to SHENYANG SINOCHEM AGROCHEMICALS R&D CO., LTD, Shenyang (CN); and JIANGSU YANGNONG CHEMICAL CO., LTD, Jiangsu (CN)
Filed by SHENYANG SINOCHEM AGROCHEMICALS R&D CO., LTD., Liaoning (CN); and Jiangsu Yangnong Chemical Co., Ltd., Jiangsu (CN)
Filed on Mar. 4, 2022, as Appl. No. 17/687,385.
Application 17/687,385 is a continuation in part of application No. PCT/CN2020/112749, filed on Sep. 1, 2020.
Claims priority of application No. 201910842263.X (CN), filed on Sep. 6, 2019.
Prior Publication US 2022/0202011 A1, Jun. 30, 2022
Int. Cl. C07D 317/46 (2006.01); A01N 43/30 (2006.01); A01P 7/04 (2006.01)
CPC A01N 43/30 (2013.01) [A01P 7/04 (2021.08); C07D 317/46 (2013.01)] 7 Claims
 
1. A piperonylic acid derivative, of formula I:

OG Complex Work Unit Chemistry
wherein:
X1 is selected from halogens;
X2 is selected from H and halogens;
X3 is selected from halogens and C1-C3 haloalkyl;
X4 is selected from H and halogens; and
R is selected from H, C1-C6 alkyl, C1-C6 haloalkyl, C2-C10 alkenyl, C1-C6 alkoxy C1-C6 alkyl, and C1-C6 alkylthio C1-C6 alkyl.