Abstract: Compounds of the formula ##STR1## exhibit, in the pre-emergence process and in the post-emergence process, a good herbicidal action against a number of dicotyledonous weeds, they are well tolerated in monocotyledonous crops, such as wheat, barley, rice, sorghum and maize, and are also selectively active in some dicotyledonous crops such as soy beans, groundnuts and the like.

Abstract: Process for the preparation of 4-phenoxyphenols of the formula ##STR1## in which R.sup.1 through R.sup.5 are hydrogen, halogen or alkyl, by diazotization of amines of the formula ##STR2## in a hydrochloric acid medium, and boiling in aqueous sulfuric acid at 110.degree. to 150.degree. C.

Abstract: Herbicidal agents containing as active ingredient a compound of the formula ##STR1## in which R represents halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.2 -alkoxy or C.sub.1 -C.sub.2 -alkylthio, C.sub.1 -C.sub.2 -halogeno-alkyl, NO.sub.2 SO.sub.2 CH.sub.3, SO.sub.2 NH.sub.2, --COOCH.sub.3, CN, with the proviso that R.sub.2 cannot be alkoxy when (R).sub.n is alkyl, R.sub.1 and R.sub.3 represent C.sub.1 -C.sub.6 -alkyl, R.sub.2 represents C.sub.1 -C.sub.6 -alkyl, CH.sub.2 Cl or C.sub.1 -C.sub.6 -alkoxy, X is oxygen or sulfur and n is an integer of from 1 to 3 are especially useful for combatting annual weed grasses in dicotyledonous and even monocotyledonous crop plants.

Abstract: Compounds of the formula ##STR1## in which R represents halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.3 -haloalkyl, No.sub.2, C.sub.1 -C.sub.4 -thioalkyl or OCH.sub.3, R.sub.1, R.sub.2 and R.sub.3 represent C.sub.1 -C.sub.6 -alkyl, X is oxygen or sulfur and n is a whole number in the range of from 1 to 3 exhibit good insecticidal, acaricidal and nematodicidal properties.

Abstract: Compounds of the formula ##STR1## in which R represents halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.3 -haloalkyl, C.sub.1 -C.sub.2 alkoxy, NO.sub.2 or S-CH.sub.3, R.sub.1 represents hydrogen or C.sub.1 -C.sub.6 -alkyl, R.sub.2 represents C.sub.1 -C.sub.6 -alkylamino, C.sub.3 -C.sub.8 -alkenylamino, N,N-di-(C.sub.1 -C.sub.6 -alkylamino), C.sub.5 -C.sub.8 -cycloalkylamino or a saturated N-heterocycle having from 4 to 8 C-atoms altogether of which 1 or 2 may stand in the side chain and in which one CH.sub.2 group of the cycle may be replaced by oxygen or sulfur, R.sub.3 represents C.sub.1 -C.sub.6 -alkyl, X is oxygen or sulfur and n is zero or a whole number in the range of from 1 to 3 exhibit a good herbicidal effect on some economically important weed grasses and dicotyledonous weeds and simultaneously they have excellent insecticidal and acaricidal properties.

Abstract: Compounds of the formula ##STR1## exhibit, in the pre-emergence process and in the post-emergence process, a good herbicidal action against a number of dicotyledonous weeds, they are well tolerated in monocotyledonous crops, such as wheat, barley, rice, sorghum and maize, and are also selectively active in some dicotyledonous crops such as soy beans, groundnuts and the like.

Abstract: Method of controlling weeds in cotton with fluoroalkoxy ureas.

Abstract: Compounds, useful as herbicides, of the formula ##SPC1##Wherein R.sub.1 is haloalkyl, halocycloalkyl, haloalkenyl, or halocycloalkenyl; n.sub.1 is 1 or 2; R.sub.4 is halogen, trifluoromethyl, alkyl, or alkoxy; n.sub.2 is 0, 1, 2, or 3; R.sub.2 is hydrogen or alkyl; and R.sub.3 is alkyl or alkoxy.Methods for making these compounds.