Abstract: A process for producing a compound of the formula (I): ##STR1## wherein R is hydrogen or an alkyl group, and R.sup.3 and R.sup.4 are hydrogen or an alkyl group, which comprises reacting a compound of the formula (II): ##STR2## wherein R.sup.1 is an optionally substituted alkyl group or an optionally substituted phenyl group, with a compound of the formula (III):HNR.sup.3 R.sup.4 (III)wherein each symbol is as defined above, and optionally alkylating the resulting compound. Intermediates for this process are also provided.

Abstract: A novel 2-(substituted phenyl)-2-alkoxyiino-N-alkylacetamide compounds having a wide fungicidal spectrum and especially an excellent activity of controlling Pseudocercosporella herpotrichoides; and a composition containing the compound for controlling Pseudocercosporella herpotrichoides.

Abstract: There is disclosed an efficient process for producing .alpha.-ketoacetamide of the formula: ##STR1## which is useful as an intermediate for the production of various alkoxyiminoacetamide compounds to be used for agricultural fungicides. In this process, a corresponding acid halide is condensed with isocyanide to produce the .alpha.-ketoacetamide.

Abstract: There is disclosed an efficient process for producing .alpha.-ketoacetamide of the formula: ##STR1## which is useful as an intermediate for the production of various alkoxyiminoacetamide compounds to be used for agricultural fungicides. In this process, a corresponding acid halide is condensed with isocyanide to produced the .alpha.-ketoacetamide.

Abstract: Novel 1-substituted -2-imidazolyl (or 1,2,3-triazolyl)cyclohexanols or cycloheptanols having anti-fungal activity against wide range of agricultural fungi with vapor effect.

Abstract: New (2-propynylamino)isoxazole and (3-iodo-2-propynylamino)isoxazole derivatives having anti-microbial activity which are used as active ingredients in anti-microbial compositions for medical use, for agricultural use and also for veterinary use.

Abstract: New 2-(2-propynylamino)thiazole and 2-(3-iodo-2-propynylamino)thiazole derivatives having anti-microbial activity which are used as an active ingredient in anti-microbial compositions for medical and agricultural use.

Abstract: 3-Amino-5-t-butylisoxazole is prepared by reacting pivaloylacetonitrile with hydroxylamine in aqueous medium under basic conditions and treating the reaction products with an acid. The process is economical and industrial.

Abstract: 3-Aminoisoxazoles of the formula: ##STR1## (wherein R is C.sub.1 -C.sub.6 alkyl, phenyl or halo-phenyl) are prepared by reacting a .beta.-ketonitrile of the formula:R--CO--CH.sub.2 CN(wherein R is as defined above) with a compound of the formula:HY(wherein Y is C.sub.1 -C.sub.6 alkoxy or C.sub.1 -C.sub.6 alkylthio) in the presence of an acid in a solvent to give an iminium salt of the formula: ##STR2## (wherein X is the residue of said acid; R and Y are each as defined above) and further reacting the iminium salt with hydroxylamine in an inert solvent.

Abstract: Urea derivatives of the formula ##STR1## (wherein Ar represents a residue of 5- or 6-membered heteroaromatic ring; R represents a hydrogen atom or a C.sub.1 -C.sub.6 alkyl group; R.sup.1 represents a C.sub.1 -C.sub.6 alkyl group; and R.sup.2 represents a C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, or C.sub.1 -C.sub.6 alkoxy group) are produced by reacting an amine of the formulaAr--NH--R(wherein Ar and R have the significance given above) with a carbamoyl halogenide of the formula ##STR2## (wherein X represents a halogen atom, and R.sup.1 and R.sup.2 have the significance given above) in the presence of a Lewis acid in an inert solvent.