公开(公告)号：GB1074333A

公开(公告)日：1967-07-05

申请号：GB4169664

申请日：1964-10-13

Applicant: BASF AG

Inventor： STEINBRUNN GUSTAV ,  FISCHER ADOLF ,  SCHEUERER GUENTER ,  STUMMYER HERBERT

IPC: A01N47/28 ,  A01N47/30

Abstract: The invention comprises reaction products (half-esters) of dicarboxylic or tetracarboxylic anhydrides and ureas of the formula where R is methyl, methoxy or isobutinyl, each X is hydrogen, halogen or C1- 4 alkyl and n is 1 or 2. Specified anhydrides are those of succinic, maleic, citraconic, glutaric, phthalic, pyromellitic, naphthalic and diphenic acids; and of hydrogenated, chlorinated and/or nitrated phthalic acids, chlorinated succinic acid, mono- and dichloromaleic acid, and chlorinated and/or nitrated naphthalic and diphenic acids. These compounds are herbicides (see Division A5).ALSO:Agents for controlling unwanted vegetation are reaction products of dicarboxylic or tetracarboxylic anhydrides with ureas of the formula where R is methyl, methoxy or isobutinyl, each X is hydrogen, halogen or C1-4 alkyl, and n is 1 or 2, (see Division C2), together with a liquid or solid carrier. The active compounds may be used in the form of salts. The compositions may also contain emulsifiers and/or dispersing agents, and other active ingredients such as urea derivatives, carbamates, halogenated fatty acids, triazines, uracils or boron and arsenic derivatives.