Abstract: Disclosed are selected 2-trichloromethyl-4-pyrimidinyl carbamates having the formula: ##STR1## wherein X is an atom selected from the group consisting of oxygen and sulfur; R is a lower alkyl group having 1 to 4 carbon atoms or a phenyl group or R.sub.2 is --(CH.sub.2).sub.n --, where n is 4 or 5; R.sup.1 is hydrogen, a lower alkyl group having 1 to 4 carbon atoms, halo or nitro; and R.sup.2 is a lower alkyl group having 1 to 4 carbon atoms or a halo alkyl group having 1 to 4 carbon atoms. These compounds are disclosed to be agricultural fungicides.

Abstract: Disclosed are selected 2-acyl- or 2-thioacyl-1-trichloroacetimidoylhydrazines having the formula: ##STR1## wherein X is an atom selected from the group consisting of oxygen and sulfur; and R is a hydrogen, lower alkyl or lower alkoxy group having 1 to 4 carbon atoms, or an unsubstituted or substituted phenyl group. These compounds are disclosed to be agricultural fungicides.

Abstract: Disclosed are selected 5-hydrazono-3-trichloromethyl-1,2,4-thiadiazole compounds of the formula: ##STR1## wherein R is a lower alkyl having 1 to 4 carbon atoms, phenyl, and substituted phenyl in which the said phenyl ring substituents are selected from lower alkyl having 1 to 4 carbon atoms, lower alkoxy having 1 to 4 carbon atoms, halo, hydroxy, nitro and mixtures thereof; and R' and R" are individually selected from hydrogen and lower alkyl having 1 to 4 carbon atoms. These compounds are shown to have foliar fungicidal activity.

Abstract: Disclosed are selected 3-trichloromethyl-5-cyclic amine-1,2,4-thiadiazole compounds. These compounds can be applied to or spread upon soil by themselves or in inert carriers or with nitrogen-containing fertilizers to inhibit ammonium nitrification in the soil.

Abstract: Disclosed are selected biuret derivatives of 3-trihalomethyl-1,2,4-thiadiazole compounds of the formula: ##STR1## wherein R.sub.1 is a CCl.sub.3 or CF.sub.3 group; R.sub.2 and R.sub.3, separately, are either hydrogen or a lower alkyl group of 1 to 4 carbon atoms or an aryl group having 6 to 8 carbon atoms; and R.sub.4 and R.sub.5 are either hydrogen or a lower alkyl group of 1 to 4 carbon atoms or an aryl group having 6 to 8 carbon atoms or an acyl group having 1 to 8 carbon atoms, with the proviso that either R.sub.4 or R.sub.5, or both, must be a hydrogen.

Abstract: A process for producing a purified 3,4-toluenediamine product and a mixture of 4- and 5-methylbenzotriazoles from a mixture of ortho-toluenediamine isomers, the process having the steps of(a) dissolving a mixture of ortho-toluenediamine isomers in water to form an aqueous solution;(b) cooling the aqueous solution to a temperature whereby crystals of a purified 3,4-toluenediamine product are formed in an aqueous mother liquor;(c) separating the purified 3,4-toluenediamine product crystals from the aqueous mother liquor;(d) reacting the aqueous mother liquor with a diazotization agent selected from sodium nitrite, potassium nitrite, nitrous acid and nitrous anhydride in the presence of acetic acid to form a reaction mixture containing a mixture of 4- and 5-methylbenzotriazoles; and(e) recovering the mixture of 4- and 5-methylbenzotriazoles from the reaction mixture.

Abstract: Superior drying is obtained for coating compositions containing drying or semi-drying oils by incorporating therein an effective amount of 5-methyl-1,10-phenanthroline.