Abstract: Novel benzotriazolesulfonic acid derivatives of formula ##STR1## wherein: R.sub.1 is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy having at least two identical or different halogen atoms, CF.sub.3, nitro or the group N(R')R", wherein R' and R" are each independently of the other C.sub.1 -C.sub.4 alkyl;R.sub.2 is phenoxy or phenylthio each of which is unsubstituted or mono- to tri-substituted by halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy having at least two identical or different halogen atoms, cyano, nitro, C.sub.2 -C.sub.4 alkenyl, C.sub.2 -C.sub.4 alkynyl, phenyl, 2-phenylethynyl or by a further phenoxy radical that is unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl and/or by C.sub.1 -C.sub.4 alkoxy; or R.sub.2 is the radical O--CH.sub.2 --O;R.sub.3 is alkyl, aryl or aralkyl having a maximum of 14 carbon atoms, these radicals can be substituted by halogen, C.sub.1 -C.sub.

Abstract: Benzimidazole derivatives of the formula ##STR1## in which R and R.sub.1 independently of one another are each hydrogen, an alkanoyl group having 1 to 4 carbon atoms, an alkoxycarbonyl group having 1 to 4 carbon atoms, an alkylsulphonyl group having 1 to 4 carbon atoms, a benzoyl group, a phenylsulphonyl group or a p-methylphenylsulphonyl group; R.sub.2 and R.sub.4 independently of one another are each hydrogen, halogen or a methyl group, R.sub.3 is hydrogen, halogen, a methyl group or a methoxy group; X is oxygen or sulphur; Y is halogen, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a methylthio group, a methylsulphinyl group, a methylsulphonyl group, a trifluoromethyl group, a nitro group, a hydroxyl group, a cyano group or an acetyl group; and m is 0, 1, 2 or 3; and if one of the two radicals R or R.sub.1 is hydrogen, the position of the other of these radicals on the N atoms cannot be clearly established, including, when at least one of the two radicals R or R.

Abstract: Benzimidazole derivatives of the formula ##STR1## in which R is an alkyl group having 1 to 6 carbon atoms, an alkenyl group having 3 to 5 carbon atoms, an alkynyl group having 3 to 5 carbon atoms or a benzyl group, which is unsubstituted or monosubstituted to disubstituted by a methyl group, halogen or a nitro group;R.sub.1 is hydrogen, an alkanoyl group having 1 to 4 carbon atoms, an alkoxycarbonyl group having 1 to 4 carbon atoms, a N,N-dialkylcarbamoyl group or N,N-dialkylthiocarbamoyl group, each having 1 to 4 carbon atoms in the alkyl groups, an alkylsulphonyl group having 1 to 4 carbon atoms, a benzoyl group, a phenylsulphonyl group, a 4-methylphenylsulphonyl group or the radical, ##STR2## in which Q is a carbonyl group, a thiocarbonyl group or an oxalyl group;R.sub.2 is hydrogen, halogen or a methyl group;R.sub.3 is hydrogen, halogen, a methyl group or an alkoxy group having 1 to 4 carbon atoms;R.sub.

Abstract: Monohydroxyphenyl carbinols with at least two halogen atoms in the molecule have been found as microbicides which are effective against various types of bacteria and fungi.

Abstract: The present invention is concerned with quaternary ammonium-hydroxyaryl compounds of the formula ##STR1## in which R.sub.1 represents an aliphatic residue of high molecular weight, R.sub.2 a monocyclic benzene residue, R.sub.3 and R.sub.4 each represents a short-chain divalent aliphatic residue and A an aromatic residue which contains at most 2-six-membered rings and is linked through a cyclic carbon atom with the oxygen atom. The new compounds are useful for controlling harmful microorganisms.

Abstract: The use of compounds of formula I ##STR1## wherein X represents chlorine or bromine and n denotes an integer from 1 to 6 for combating harmful microorganisms is disclosed.

Abstract: Agents for the control of plant bacteria, which agents contain, as active substance, a benzo-1,3-dioxane derivative of formula I ##STR1## wherein R represents hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl or styryl, and X.sub.1 and X.sub.3 each independently represent chlorine or bromine, together with suitable carriers and/or further additives.

Abstract: The present invention provides a method for combating harmful microorganisms, which comprises applying to a desired site an effective amount of 2-hydroxy-benzophenone of the formula ##SPC1##Wherein Z.sub.1 denotes halogen or alkyl, X.sub.1 and Y.sub.1 each denote hydrogen, halogen, alkyl, cycloalkyl, benzene or substituted benzene, X.sub.2, X.sub.3, X.sub.4, Y.sub.2 and Y.sub.3 each denote hydrogen, halogen or alkyl and X.sub.5 denotes hydrogen or halogen, with the number of the alkyl, benzene and cyclohexyl radicals as substituents being together at most 4. The anti-bacterial range of these 2-hydroxy benzophenones extends both to gram-positive and gram-negative bacteria.

Abstract: "New alkylphenols of formula I ##SPC1## ##SPC2##method of preparing this new compounds and their use for the control of harmful microorganisms, and helminths and for protecting organic materials.

Abstract: The present invention relates to new bis-hydroxyphenyl-alkanes of the formula I ##SPC1##wherein one of the radicals X.sub.1 to X.sub.4 represents halogen and the others represent hydrogen, halogen, or alkyl, process for their manufacture, agents which contain these new compounds, and to the use of the new compounds for combating microorganisms and for material protection.

Abstract: Monohydroxyphenyl carbinols with at least two halogen atoms in the molecule have been found as microbicides which are effective against various types of bacteria and fungi.