A class of 4-piperidinones and corresponding dihydropyridinones having a phenyl substituent at one .beta.-position, an alkyl, alkenyl or propargyl group at the 1-position and an optional substituent at the other .beta.-position are broad-spectrum herbicides. The compounds bear a metasubstituent on the phenyl ring, and are particularly suited for use as herbicides in cotton culture.
一类
4-哌啶酮和相应的
二氢吡啶酮,在其中一个β位上具有苯基取代基,在1位上具有烷基、烯基或
丙炔基取代基,并且在另一个β位上具有可选取代基,是广谱
除草剂。这些化合物在苯环上带有一个间位取代基,特别适用于在棉花种植中用作
除草剂。