Hoffmann-la Roche Inc.

Ciba-geigy Corporation

Paul Winternitz

Jean Wenger

Milos Suchy

Martin Zeller

Georg Frater

Christoph Luthy

Ren/e/ Zurfl/u/ H

The invention relates to 3-aryluracils of formula I ##STR1## wherein W is a group of formula ##STR2## in which the linkage to the ring nitrogen atom is through the carbon atom: R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.3 - or C.sub.4 alkenyl or C.sub.3 - or C.sub.4 alkynyl;

3-aryluracil derivatives and the use thereof for weed control

3-Aryluracil derivatives of the formula I ##STR1## in which --W-- is the group ##STR2## where the ring nitrogen atom is bonded via the C atom; R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.3 alkenyl or C.sub.4 alkenyl or C.sub.3 alkynyl or C.sub.4 alkynyl;

3-aryluracil derivatives and their use for weed control

The invention relates to novel compounds of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 have the meanings given in the description, to enol ethers and salts thereof and their preparation, to weed control compositions that comprise such compounds as active ingredients, and to the use of the compounds or compositions to control weeds. The invention relates also to certain novel starting materials and to the preparation thereof.

Heterocyclic compounds

The invention is concerned with compounds of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, n and X have the significances given in the description, as well as enol ethers and salts thereof and their manufacture. The compounds have herbicidal properties and are accordingly suitable as active ingredients of weed control compositions. The invention is also concerned with weed control compositions containing one or more of such substances as well as the use of the substances or compositions for the control of weeds. Certain starting materials, which also have herbicidal activity, and their production are also described.

Heterocyclic substituted uracil derivatives

The invention is concerned with compounds of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 have the significances given in the description, as well as enol ethers and salts thereof and their manufacture. The compounds have herbicidal properties and are accordingly suitable as active ingredients of weed control compositions. The invention is also concerned with weed control compositions containing one or more of such substances and with the use of the substances or compositions for the control of weeds.

Herbicidal 3-aryluracils

3-aryluracils for the control of weeds

The invention is concerned with 3-aryluracils of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are as described herein, as well as salts thereof and their manufacture, weed control compositions which contain such compounds as the active substance and the use of the active substances or compositions for weed control. The invention is also concerned with herbicidally-active starting materials and weed control compositions containing these.

3-Aryluracils having an ether (thio) carbomyloxy or sulphomyloxy

The invention is concerned with novel C.sub.1-4 -alkyl, C.sub.2-4 -alkenyl and C.sub.3 or 4 -alkynyl enol ethers of 3-aryluracils of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and X are as defined in the specification, their manufacture, weed control compositions which contain such enol ethers as the active substance and the use of the active substances or compositions for the control of weeds. The invention is also concerned with certain novel intermediates, some of which possess herbicidal activity, and with weed control compositions containing such active substances.

Herbicidal heterocyclic compounds

Novel diaryl ethers of the formula ##STR1## wherein A is CR.sup.3 or N and R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, n and R.sup.6 are as defined hereinafter, processes for their preparation, herbicidal compositions which contain these compounds as the active ingredient as well as the use of these compounds or compositions for the control of weeds is disclosed.

Diaryl ethers

The disclosure is concerned with novel 3-aryluracils of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and X have the significances given in the description, as well as salts thereof and their manufacture, weed control compositions which contain such compounds as active ingredients and the use of the active ingredients or compositions for the control of weeds. The disclosure also concerns certain herbicidally active starting materials and weed control compositions containing these as active ingredients.

3-(5-carboxy-4-substituted-phenyl)-(thio)uracil-esters and salts

The oxime ester compound [(isopropylideneamino)oxy]-ethyl-2-[[(6-chloroquinoxalinyl)oxy]phenoxy]pro pionate, processes for the preparation thereof, herbicidal compositions containing said compound and methods of use of the composition.

[(Isopropylideneamino)oxy]-eth

Benzoic acid compounds of the formula ##STR1## wherein A, R.sup.1, R.sup.2, R.sup.4, R.sup.5, R.sup.6, R.sup.7, n and X are as defined hereinafter, processes for their preparation, herbicidal compositions containing these compounds and methods for the use of the compounds and the herbicidal compositions are disclosed. Novel compounds which useful as starting materials for the preparation of the benzoic acid compounds of formula I are also disclosed.

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Greifensee, Switzerland

Paul Winternitz