HERBICIDAL COMPOSITIONS COMPRISING ESTERS OF CINNAMIC ACID AND PROCESS FOR PRODUCING ESTERS OF CINNAMIC ACID

摘要

Cinnamic acid esters of the general formula I IMAGE in which the dotted bond represents a single or double bond and the substituents have the following meanings: R1 is hydrogen or fluorine, R2 is halogen, R3 is hydrogen, halogen or C1-C4-alkyl, R4 is hydrogen, optionally substituted C1-C6-alkyl, C3-C6-alkenyl, C3-C6-alkynyl or benzyl, and X is oxygen or sulphur, preparation process, and agents containing them.