Patent GB-1151424-A (GB)
Title: Benzimidazoles and compositions thereof
Inventor: NEWBOLD GEOFFREY TATTERSALL
IPC: C02F1/50
Filed: 1965-07-13
Abstract: 1,151,424. Biocides containing benzimidazoles. FISONS PEST CONTROL Ltd. 22 June, 1966 ,[13 July, 1965; 29 July, 1965 (2)], Nos. 39583/65, 32413/65 and 32414/65. Heading A5E [Also in Division C2] A biocidally active composition which contains as an active ingredient a substituted benzimidazole of the following formula:- wherein R<SP>1</SP> ,  R<SP>2</SP> ,  R<SP>3</SP> and R<SP>*</SP> are the same or different and are H, alkyl, hydroxy, alkoxy, nitro, halogen, pseudo-halogen by which is meant cyano, thiocyano, isothiocyano or azido, substituted alkyl, carboxy, carboxy ester, carboxy amide, N-substituted carboxy amide, N- substituted amide, disubstituted amino, thiol, alkyl thiol and oxygenated derivatives thereof, sulphonic acid, esters amides and substituted amides thereof, and a heterocyclic ring attached to the [benzimidazole system through a nitrogen atom; where X is trifluoromethyl or pentafluoromathyl; where Y and Z are the same or different and are oxygen or sulphur; where n is zero or one; and where R<SP>5</SP> is H, alkyl, aryl, alkenyl, aralkyl, cycloaliphatic or heterocyclic, substituted or unsubstituted, or when n is zero amino, monosubstituted amino or disubstituted amino, provided that where Y and Z are both oxygen then R<SP>5</SP> is alkenyl, aralkyl, cycloaliphatic or heterocyclic, substituted or unsubstituted is used as a pesticide, a herbicide or a fungicide. The composition may also contain another herbicide (e.g. MCPA), insecticide, fungicide (e.g. copper derivative) or molluscicide. The composition may also contain one or more carriers, wetting agents, inert diluents, solid diluents, solvents, edible substances attractive to pests, pest attractants, paints and varnishes. The substituted benzimidazoles may be dissolved in a water immiscible solvent, such as a high boiling hydrocarbon, suitably containing dissolved emulsifying agents so as to act as a self-emulsifiable oil on addition to water. Inert diluents with which the substituted benzimidazoles and salts thereof may be incorporated include solid inert media comprising powdered or divided solid materials, for example, clays, sands, talc, mica and fertilizers, such products either comprising dust or larger particle size materials. The wetting agents used may comprise anionic compounds such as soaps, fatty sulphate esters such as dodecyl sodium sulphate, fatty aromatic sulphonates such as alkylbenzene isulphonates or butyl naphthalene sulphonate, more complex fatty sulphonates such as the amide condensation product of oleic acid and N-methyl taurine or the sodium sulphonate of dioctyl succinate. The wetting agents may also comprise non- ionic wetting agents such as condensation products of fatty acids, fatty alcohols or fatty substituted phenols with ethylene oxide, or fatty esters of sugars or polyhydric alcohols, or the products obtained from the latter by condensation with ethylene oxide, or the products known as block copolymers of ethylene oxide and propylene oxide. The wetting agents may also comprise cationic agents such as cetyl trimethylammonium bromide.