Patent number: 4654073
Abstract: Cyclohexane-1,3-dione derivatives of the formula ##STR1## where A is tetrahydropyran-4-yl, 3-methyltetrahydropyran-4-yl, 1,4-dioxanyl, 5,5-dimethyl-1,3-dioxan-2-yl, 2,5-dimethyl-1,4-dioxan-3-yl, 2,6-dimethyl-1,4-dioxan-3-yl, 2-methyl-1,3-dithiolan-2-yl, 2,6-dimethyltetrahydrothiopyran-3-yl, 2-methyl-1,3-dithian-2-yl or unsubstituted or substituted 1,3-dioxepan-5-yl, R.sup.1 is hydrogen or methoxycarbonyl, R.sup.2 is alkyl and R.sup.3 is alkyl, alkenyl, haloalkenyl or propargyl, are used for controlling undesirable plant growth of grass species, especially in broadleaved crops and monocotyledon crops which do not belong to the grass family.
Type:
Grant
Filed:
October 31, 1984
Date of Patent:
March 31, 1987
Assignee:
Basf Aktiengesellschaft
Inventors:
Dieter Jahn, Rainer Becker, Michael Keil, Winfried Richarz, Hardo Siegel, Wolfgang Spiegler, Bruno Wuerzer