HERBICIDAL COMPOUNDS

摘要

The present invention relates to novel herbicidal oxopyridine and thionopyridine derivatives of Formula (I), or an agronomically acceptable salt of said compound wherein R1, X1, X2, X3, X4, A1, Ra, Rb, Rc and Rd are as defined herein. The invention further relates to processes and intermediates for the preparation of the oxopyridine derivatives, to compositions which comprise the herbicidal compounds, and to their use for controlling weeds, in particular in crops of useful plants.