Abstract: Thiadiazole derivatives with excellent herbicidal effectiveness, wide herbicidal spectrum and excellent selectivity are disclosed. The thiadiazole derivatives are represented by one of the formula [I]14 [IV].

Abstract: Thiadiazole derivatives with excellent herbicidal effectiveness, wide herbicidal spectrum and excellent selectivity are disclosed. The thiadiazole derivatives are represented by one of the formula [I]-[IV].

Abstract: Thiadiazole derivatives with excellent herbicidal effectiveness, wide herbicidal spectrum and excellent selectivity are disclosed. The thiadiazole derivatives are represented by one of the formula [I]-[IV].

Abstract: Thiadiazole derivatives with excellent herbicidal effectiveness, wide herbicidal spectrum and excellent selectivity are disclosed. The thiadiazole derivatives are represented by one of the formula [I]-[IV].

Abstract: Tetrahydroisoquinoline derivatives useful as fungicides are disclosed of formula [I]: ##STR1## wherein R.sup.1 represents C.sub.1 -C.sub.5 linear or branched alkyl, C.sub.2 -C.sub.5 linear or branched alkenyl, C.sub.2 -C.sub.5 linear or branched alkynyl; R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6, the same or different, represent hydrogen, C.sub.1 -C.sub.10 linear or branched alkyl, C.sub.3 -C.sub.10 linear or branched alkenyl, C.sub.2 -C.sub.10 linear or branched alkynyl, C.sub.1 -C.sub.10 linear or branched alkoxy, C.sub.2 -C.sub.10 linear or branched alkenyloxy, C.sub.2 -C.sub.10 linear or branched alkynyloxy, benzyloxy, hydroxy, haloalkyl, amino, mono- or di-substituted amino substituted with C.sub.1 -C.sub.4 linear or branched alkyl, phenyl or halogen; R.sup.2 and R.sup.3 may be bonded through a group of the formula --O--CH.sub.2).sub.m O-- wherein m represents integer of 1 or 2 or --CH.dbd.CH).sub.2 to form a ring; and R.sup.4 and R.sup.5 may be bonded through a group of the formula --O--CH.sub.2).

Abstract: Tetrahydroisoquinoline derivatives of the following formula [I] and acid addition salts thereof, and ##STR1## (wherein in all of these formulae, R.sup.1 represents C.sub.1 -C.sub.5 straight or branched alkyl, C.sub.2 -C.sub.5 straight or branched alkenyl or C.sub.2 -C.sub.5 straight or branched alkynyl; R.sup.2 represents hydrogen atom, C.sub.1 -C.sub.10 straight or branched alkyl, C.sub.2 -C.sub.10 straight or branched alkenyl, C.sub.2 -C.sub.10 straight or branched alkynyl, C.sub.1 -C.sub.10 straight or branched alkoxy, C.sub.2 -C.sub.10 straight or branched alkenyloxy, C.sub.2 -C.sub.10 straight or branched alkynyloxy, or C.sub.1 -C.sub.10 straight or branched halogenated alkyl; R.sup.3, R.sup.4 R.sup.5 and R.sup.6, the same or different represent hydrogen atom, C.sub.1 -C.sub.10 straight or branched alkyl, C.sub.2 -C.sub.10 straight or branched alkenyl, C.sub.2 -C.sub.10 straight or branched alkynyl, C.sub.1 -C.sub.10 straight or branched alkoxy, C.sub.2 -C.sub.10 straight or branched alkenyloxy, C.sub.

Abstract: Processes for producing optically active ester derivatives are disclosed. According to the present invention an optically active aryloxyphenoxy propionate derivative is produced by reacting a chlorinated heterocyclic aromatic compound with (2R)-2-(4-hydroxyphenoxy)propionic acid tetrahydrofurfuryl ester in an anhydrous solvent in the presence of a base. According to the present invention, an optically active propionate derivative of the formula [I] ##STR1## (wherein R represents hydrogen or 3-chloro-5-trifluoromethyl-2-pyridyl group) is produced by reacting a corresponding optically active methyl propionate derivative with tetrahydrofurfuryl alcohol, or by reacting a corresponding optically active propionic acid derivative with tetrahydrofurfuryl alcohol, or by reacting (2S)-tetrahydrofurfuryl 2-chloropropionate with a corresponding phenol derivative in specific conditions.

Abstract: Disclosed is a novel compound of the formula [I]: ##STR1## (wherein R.sup.1 is H or CH.sub.3, R.sup.2 is H or C.sub.1 -C.sub.4 alkyl), furylmethyl group, tetrahydrofuryl group 2-tetrahydropyranylmethyl group or tetrahydrofurfuryl group which may be substituted with methyl group. The compound has strong herbicidal effect against the weeds belonging to the Family Gramineae.

Abstract: Disclosed is a tetrahydrophthalimide derivative of the formula (I): ##STR1## wherein X.sup.1 and X.sup.2, the same or different, represent halogen, hydrogen or trifluoromethyl; R represents ##STR2## (wherein R.sup.1 and R.sup.2, the same or different, represent hydrogen or methyl, R.sup.3 represents 2-tetrahydrofurfuryl or 3-methyl-1,2,4-oxadiazol-5-yl), ##STR3## (wherein R.sup.4 is hydrogen or methyl, R.sup.5 is methyl or benzyl), ##STR4## (wherein R.sup.6 represents hydrogen or methyl, R.sup.7 is halogen or C.sub.1 -C.sub.4 alkyl), ##STR5## (wherein R.sup.8 is hydrogen, acyl or arylalkyl), cyano, or --CH.sub.2 OR.sup.9 (wherein R.sup.9 is hydrogen, acetyl, halophenyl, C.sub.1 -C.sub.4 tetrahydrophthalimide derivative of the present invention is useful as a herbicide.

Abstract: Disclosed is novel hexahydrophthalic anilide derivatives and herbicide compositions comprising the derivatives. The hexahydrophthalic anilide derivatives of this invention are represented by the formula [I], [II] or [III]. ##STR1## (wherein R.sup.1 represents non-substituted or substituted phenyl, R.sup.2 represents hydrogen or C.sub.1 -C.sub.4 alkyl, R.sup.3 represents C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkenyl) ##STR2## (wherein R.sup.4 and R.sup.5, the same or different, represent C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkenyl or C.sub.1 -C.sub.4 alkynyl, provided R.sup.4 and R.sup.5 are not C.sub.1 -C.sub.4 alkyl simultaneously) ##STR3## (wherein X.sup.1 and X.sup.2, the same or different, represent halogen, Y represents oxygen or sulfur, R.sup.6 represents C.sub.1 -C.sub.6 straight or cyclic alkyl which may be substituted with oxygen, R.sup.7 represents hydrogen or methyl, R.sup.8 represents cyano, C.sub.1 -C.sub.3 alkyl, C.sub.2 or C.sub.3 alkenyl, C.sub.2 -C.sub.4 alkynyl, C.sub.3 -C.sub.

Abstract: A process of producing 2-(4'-hydroxyphenoxy)-3-chloro-5-trifluoromethylpyridine with high efficiency, which is suited for industrial scale production is disclosed. In the process of the present invention, hydroquinone, a dehydrohalogenating agent in the amount of 0.10-0.70 equivalent of the hydroquinone, and a mixed solvent of a polar aprotic solvent and an aromatic hydrocarbon solvent are mixed. The resulting mixture is then heated to reflux at atmospheric pressure to dehydrate the mixture. Then 2,3-dichloro-5-trifluoromethylpyridine in the amount of 0.20-0.95 equivalent of the dehydrohalogenating agent is added to the mixture, and the resulting mixture is allowed to react at a temperature of 100.degree.-170.degree. C.

Abstract: Disclosed is a novel compound of the formula [I]: ##STR1## wherein A represents ##STR2## (wherein X is H or Cl) ##STR3## Z represents ##STR4## (wherein R.sup.1 is H or CH.sub.3, R.sup.2 is H or C.sub.1 -C.sub.4 alkyl), furylmethyl group, tetrahydrofuryl group 2-tetrahydropyranylmethyl group or tetrahydrofurfuryl group which may be substituted with methyl group. The compound has strong herbicidal effect against the weeds belonging to the Family Gramineae.

Abstract: Phenyl chlorothioformates are produced in high yields easily and safely by (1) allowing sulfur dioxide to react with a mixed solution consisting of perchloromethyl mercaptan, an organic solvent and water, (2) removing the aqueous layer from the reaction mixture and (3) adding to the organic layer a phenol compound and a dehydrohalogenating agent in that order.

Abstract: An antifungal composition comprising an effective amount of carbamate derivative having the formula (I): ##STR1## where X is 2-naphthyl, 5-indanyl, 5,6,7,8-tetrahydro-2-naphthyl, 1,4-methano-1,2,3,4-tetrahydro-6-naphthyl, 1,4-ethano-1,2,3,4-tetrahydro-6-naphthyl, 2-quinolyl, or a phenyl group having one or two of the same or different substituents selected from the group of halogen atom, lower alkyl, lower alkenyl, lower alkoxy, lower alkenyloxy, halogenated lower alkyl, lower alkylthio, lower alkylsulfonyl, lower alkylamino, nitro, and methylenedioxy;Y is an oxygen atom or a sulfur atom;Z is lower alkyl group;W is pyridyl group having one or two of the same substituents selected from the group of lower alkyl, lower alkoxy, lower alkenyloxy, and lower alkylamino.

Abstract: 2-Alkylaminopyridine derivatives represented by the general formula ##STR1## wherein R denotes a lower alkyl group and Y denotes a halogen atom, and a process for producing the same. These compounds are useful as intermediates in medicines and agricultural chemicals. The final products prepared from the intermediates of the invention are especially useful as herbicides for use in paddy fields and farmlands.

Abstract: 2-Alkylaminopyridine derivatives represented by a general formula of ##STR1## wherein R denotes a lower alkyl group and Y denotes a methoxy group or a halogen atom, and method for producing the same.

Abstract: Herbicides containing thiocarbamate derivatives represented by the general formula (I) as an active ingredient ##STR1## wherein X is 5-indanyl, 5,6,7,8-tetrahydro-2-naphthyl, 1,4-methano-1,2,3,4-tetrahydro-6-naphthyl, 1,4-ethano-1,2,3,4-tetrahydro-6-naphthyl, or substituted phenyl,Y is lower alkyl,Z is naphthyl which is unsubstituted or phenyl which is unsubstituted or substituted.

Abstract: Carbamate derivatives represented by the general formula (I); ##STR1## wherein X is 2-naphthyl, 5-indanyl, 5,6,7,8-tetrahydro-2-naphthyl, 1,4-methano-1,2,3,4-tetrahydro-6-naphthyl, 1,4-ethano-1,2,3,4-tetrahydro-6-naphthyl, 2-quinolyl, or substituted phenyl,Y is an oxygen atom or a sulfur atom,Z is lower alkyl,W is pyridyl or pyrimidyl which is unsubstituted or substituted; process for the preparation of such compounds;and herbicides containing the same as an active ingredient.

Abstract: A reaction in a catalyst suspension system is carried out by using a reactor equipped with a filter for separating the catalyst in the reactor.

Abstract: An organic peroxide is hydrogenated to produce the corresponding mono- or polyhydric alcohol in a suspensoid process or a fluidized bed process in the presence of more than 3 wt. % of a nickel catalyst at a reaction temperature of 140.degree. to 200.degree. C under a hydrogen pressure of 10 to 300 Kg/cm.sup.2 by feeding the organic peroxide at a rate of 0.05 to 10 g/hr. per 1 g of the nickel catalyst.