Ciba-geigy Corporation

Dagmar Berrer

Verena Laanio

Hans U Brechbuhler

Joachim Lorenz

Reinhardt Grade

Georg Pissiotas

Henry Szczepanski

Otto Rohr

Karl Hoegerle

There are described triazine derivatives of the formula I ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 independently of one another are each C.sub.1 -C.sub.5 -alkyl which is unsubstituted or monosubstituted by C.sub.3 -C.sub.6 -cycloalkyl, or mono- or polysubstituted by halogen, or is C.sub.3 -C.sub.6 - cycloalkyl which is unsubstituted or mono- or polysubstituted by halogen, or one of the substituents R.sub.1, R.sub.2 and R.sub.3 is also halogen or --NR.sub.4 R.sub.5, in which R.sub.4 is hydrogen or C.sub.1 -C.sub.5 -alkyl and R.sub.5 is hydrogen, C.sub.1 -C.sub.5 -alkyl, monochloroacetyl or dichloroacetyl. The triazine derivatives are used for the protection of maize and sorghum plants against the harmful effects of herbicidal chloroacetanilides and chloroacetamides.

Use of triazine derivatives for protecting maize and sorghum plants

The invention relates to thiocarbamoylalkoxyphenylureas of the general formula ##STR1## wherein X is hydrogen, halogen, C.sub.1 -C.sub.2 haloalkoxy or C.sub.1 -C.sub.2 haloalkyl,

Thiocarbamoylalkoxyphenylureas

A sea-water algicidal composition containing a triazine of the group comprising 2-methylthio-4-cyclopropylamino-6-(.alpha.,.beta.-dimethylpropylamino)-s-t riazine (I); 2-methylthio-4-cyclopropylamino-6-t-butylamino-s-triazine (II); and 2-methylthio-4-ethylamino-6-(.alpha.,.beta.-dimethylpropylamino)-s-triazin e.

2-Methylthio-4-cyclopropylamino-6-(

Agent for combating sea-water algae

2-Cyclopropylamino-4,6-diamino-s-triazine and acid addition salts thereof for combatting developmental stages of insects.

2-Cyclopropylamino-4,6-diamino-s-triazine

2-Cyclopropylamino-4-formamidino-6-amino-s-triazine of the formula ##STR1## wherein R.sub.1 represents hydrogen, C.sub.1 -C.sub.4 -alkyl which is unsubstituted or substituted by lower alkoxy; or represents C.sub.3 -C.sub.4 -alkenyl, C.sub.3 -C.sub.4 -alkynyl, cyclopropyl, hydroxyl, methoxy or ethoxy,

Novel insecticides

2-Cyclopropylamino-4-formylamino-6-amino-s-triazines of the formula ##STR1## wherein R.sub.1 represents hydrogen, C.sub.1 -C.sub.4 -alkyl which is unsubstituted or substituted by lower alkoxy, or represents C.sub.3 -C.sub.4 -alkenyl, C.sub.3 -C.sub.4 -alkynyl, cyclopropyl, hydroxy, methoxy or ethoxy,

This invention relates to new pyrimidine derivatives with herbicidal activity corresponding to formula I ##STR1## wherein X is halogen, lower alkoxy or lower alkylthio Y is hydrogen or halogen and ##STR2## are aliphatic amino radicals, one or both of which contain the cyclopropyl ring. A process for their manufacture is given. Herbicidal compositions which contain these new pyrimidine derivatives as active component and their use for the post-emergent total or selective combating of weeds are also disclosed.

Pyrimidine derivatives

This invention discloses new triazine derivatives, to herbicidal compositions containing them and to a method for selectively controlling weeds in cultivated crops with them. The triazine derivatives correspond to the formula I ##STR1## wherein R.sub.1 represents hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl, C.sub.4 -C.sub.7 -cycloalkylalkyl, C.sub.2 -C.sub.6 -alkoxyalkyl, C.sub.2 -C.sub.6 -cyanoalkyl, C.sub.3 -C.sub.4 -alkenyl or C.sub.3 -C.sub.4 -alkynyl,

Growing community of inventors

Riehen, Switzerland

Dagmar Berrer