Patent GB-1492772-A (GB)
Title: Substituted s-triazino-(1,2-alpha)-benzimidazoles and their manufacture
IPC: A61K31/53
Filed: 1974-11-11
Abstract: 1492772 s-Triazino - [1,2-a]-benzimidazoles HOECHST AG 11 Nov 1974 [10 Nov 1973] 48770/74 Heading C2C Novel compounds I in which R 1  represents an optionally branched alkyl group having from 1 to 18 carbon atoms; an optionally branched alkenyl group having from 3 to 18 carbon atoms; a cycloalkyl group having from 3 to 12 carbon atoms, which may be substituted by one or more alkyl groups having 1 to 4 carbon atoms or by a hydroxyl group; (tricyclo-[5,2,1,0<SP>2,6</SP>]-decyl); a phenalkyl or diphenylalkyl group having up to 6 carbon atoms in the alkylene radical and in which the phenyl nuclei may be substituted by one or more substituents selected from halogen atoms, (C 1 -C 4 )-alkyl, (C 1 -C 4 )-alkoxy or (C 1 -C 4 )- alkylthio groups; a phenyl or naphthyl group which may be substituted by one or more substituents selected from (C 1 -C 4 )-alkyl, (C 1 - C 4 )-halogenoalkyl, (C 1 -C 4 )-alkoxy, (C 1 -C 4 )- alkylthio, phenoxy and hydroxyl groups and halogen atoms; a hydroxyalkyl, alkoxyalkyl, polyalkoxyalkyl, alkylthioalkyl, dialkylphosphinylalkyl, morpholinoalkyl, pyrrolidinoalkyl, piperidinoalkyl or carbalkoxyalkyl group each group having up to 12 carbon atoms; or a furfuryl group or R 1  is a group -R-NR 1 <SP>1</SP>R<SP>11</SP> in which R denotes a straight-chain or branched (C 2 -C 6 )-alkylene group and R<SP>1</SP> and R<SP>11</SP> denote identical or different (C 1 -C 4 )-alkyl radicals; or R 1  represents a 1<SP>1</SP>,1<SP>1</SP>-dialkyl-substituted prop-2-ynyl radical of the general formula wherein R<SP>1</SP> and R<SP>11</SP> which may be the same or different, each represents a (C 1 -C 4 )-alkyl group or an optionally substituted phenyl group; or R 1  represents a (C 2 -C 3 )-alkynyl-substituted (C 5 -C 8 )-cycloalkyl radical, or denotes a bicyclo[2,2,1]hept-4-en-2-ylmethyl, an exo- or endo - bicyclo[2,2,1]heptyl-2-methyl, a bicyclo- [2,2,1]hept-2-yl or tricyclo[5,2,1,0<SP>2,6</SP>]dec-2-en- 7-yl radical, R 2  represents a straight chain or branched chain (C 1 -C 6 )-alkyl group, R 3  represents a hydrogen or halogen atom, R 4  represents a hydrogen or halogen atom, or a phenylthio, phenylsulfinyl, phenoxy, ethoxy, methyl, cyano, nitro, quinolinoxy, N<SP>1</SP>-methylpiperazinyl or benzoyl group, R 5  represents a hydrogen or halogen atom, and X represents an oxygen or sulphur atom, with the proviso that when R 3 , R 4  and R 6  each represents a hydrogen atom and X represents an oxygen atom, R 2  may not represent a methyl group, are prepared by reacting a compound IV with an amine R 1 -NH 2  and formaldehyde. Compounds I prepared are those in which R 1  is C 1-18  alkyl, cyclohexyl, benzyl, 1,2-diphenylethyl tricyclo[5,2,1,0<SP>2</SP>,<SP>6</SP>]decyl, γ-methylthiopropyl or phenyl; X is O and R 2  is C 1-5  alkyl or X is S and R 2  is Me or Et; R 3  is H, Cl or Br; R 5  is H, Cl or Br and R 4  is H, Cl, F, Me, CN, NO 2 , phenylthio, phenylsulphinyl, benzoyl, ethoxy, 8-quinolinyloxy or N-methylpiperazino. Compounds I are active against nematodes and cestodes and form with a carrier a pharmaceutical composition which may be administered orally or parenterally. Compounds I are also fungicides and are useful in the treatment of plants, fruit and vegetables and for the protection of textiles, timber, dyestuffs and paint films.