Ciba-Geigy Corporation

Erich Stamm

Josef Ehrenfreund

Hermann Rempfler

Rudolph C Thummel

Novel 1-phenyl-5-oxo-2-tetrazolines of formula I ##STR1## in which R.sup.1 is C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 alkynyl, C.sub.3 -C.sub.6 cycloalkyl, C.sub.5 -C.sub.6 cycloalkenyl, C.sub.1 -C.sub.4 alkyl- or halo-substituted C.sub.3 -C.sub.6 cycloalkyl, C.sub.1 -C.sub.4 alkyl- or halo-substituted C.sub.5 -C.sub.6 cycloalkenyl, halo-, C.sub.1 -C.sub.4 alkoxy- or phenyl-substituted C.sub.3 -C.sub.6 alkenyl, halo-, C.sub.1 -C.sub.4 alkoxy- or phenyl-substituted C.sub.3 -C.sub.8 alkynyl, or C.sub.1 -C.sub.8 alkyl that is substituted by halogen, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 alkoxycarbonyl, C.sub.3 -C.sub.6 cycloalkyl, phenyl, cyano, hydroxy, halophenyl, C.sub.1 -C.sub.4 alkylphenyl or by a heteroaromatic radical,

1-phenyl 5-oxotetrazolines

Novel 1-phenyl-5-thioxo-2-tetrazolines of formula I ##STR1## in which R.sup.1 is C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 alkynyl, C.sub.3 -C.sub.6 cycloalkyl, C.sub.5 -C.sub.6 -cycloalkenyl, C.sub.1 -C.sub.4 alkyl- or halo-substituted C.sub.3 -C.sub.6 cycloalkyl, C.sub.1 -C.sub.4 -alkyl- or halo-substituted C.sub.5 -C.sub.6 cycloalkenyl, halo-, C.sub.1 -C.sub.4 alkoxy- or phenyl-substituted C.sub.3 -C.sub.6 alkenyl, halo-, C.sub.1 -C.sub.4 alkoxy- or phenyl-substituted C.sub.3 -C.sub.8 alkynly, or C.sub.1 -C.sub.8 alkyl that is substituted by halogen, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 alkoxycarbonyl, C.sub.3 -C.sub.6 cycloalkyl, phenyl, cyano, hydroxy, halophenyl, C.sub.1 -C.sub.4 alkylphenyl or by a heteroaromatic radical.

Thioxotetrazolines and insecticidal use thereof

The invention relates to ureas having a herbicidal and plant growth-regulating action of the formula ##STR1## in which R.sup.1 and R.sup.2 each represent, independently of the other, hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkoxy-(C.sub.1 -C.sub.4)-alkyl, nitro or cyano, and

Pyrimidine-2-phenylamino derivatives

The invention relates to ureas having a herbicidal and plant growth-regulating action of the formula ##STR1## in which R.sup.1 and R.sup.2 each represents, independently of the other, hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkoxy-(C.sub.1 -C.sub.4)-alkyl, nitro or cyano, and

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Huttwil, Switzerland

Erich Stamm