摘要:
A process for producing 3,3,7-trimethyl-2,9-dioxatricyclo[3.3.1.0.sup.4,7 ]nonane useful as an insect pheromone and having the formula, ##STR1## which comprises reducing 1,5,5-trimethyl-7-endo-tert-butyldimethylsilyloxy-4-oxabicyclo[4.2.0]octan-3-one with diisobutylaluminum hydride, and treating with an acid, after desilylation.
摘要:
3,4-Disubstituted benzoxa(thia)zole-2-one derivatives of the formula: ##STR1## wherein R.sub.1 is a halogen atom or methyl group, R.sub.2 is a methyl or ethyl group and X and Y are individually an oxygen or sulfur atom, and their preparation and use as a fungicide.
摘要:
A process for producing novel 1,4-benzothiazine derivatives (I), ##STR1## (in which X is a halogen atom) and their derivatives, ##STR2## wherein R is a (C.sub.1 -C.sub.5) alkyl, (C.sub.3 -C.sub.6) cycloalkyl, phenyl, substituted phenyl, phenyl (C.sub.1 -C.sub.5) alkyl or phenoxy (C.sub.1 -C.sub.5) alkyl group, and herbicides containing these compounds as an active ingredient. Compound (I) is produced by the reaction between Compound (II) and phosphorus pentasulfide; Compound (II) is produced (1) by the reaction between an aminothiophenol (III), ##STR3## (in which X is a halogen atom), and a halogenated acetic acid, (2) by the ring closure of Compound (VI), (3) by the reduction and ring closure of Compound (VIII), and (4) by the hydrolysis and ring closure of Compound (X); Compound (VI) is produced by the reaction between Compound (III) and a halogenated acetyl halide; Compound (VIII) is produced by the oxidation of Compound (III) followed by reaction with a halogenated acetyl halide; and Compound (X) is produced by the reaction between Compound (III) and a halogenated acetic ester. Compounds (I), (II), (VI), (VIII) and (X) have a herbicidal activity.
摘要:
A fungicidal composition which comprises as an active ingredient a fungicidally effective amount of the compound represented by the general formula, ##STR1## wherein X, which may be the same or different, represents a hydrogen or halogen atom or a lower alkyl group, R.sup.1 and R.sup.2, which may be the same or different, represent a hydrogen atom or a methyl group, and n represents an integer of from 1 to 5, and an inert carrier.
摘要:
A compound having a fungicidal activity represented by the general formula, ##STR1## wherein X, which may be the same or different, represents a cyano, nitro, halogenated lower alkyl, C.sub.1 -C.sub.12 alkoxy, lower alkoxy-substituted lower alkyl, lower alkenyloxy, lower alkynyloxy, halogenated lower alkoxy, lower alkoxycarbonyl or lower alkylthio group, R.sup.1 and R.sup.2, which may be the same or different, represent a hydrogen atom or a methyl group, Y represents a hydrogen or chlorine atom, m represents an integer of from 1 to 5, and n represents an integer of from 0 to 4, the sum of m and n being less than 6.
摘要:
A fungicidal composition which comprises as an active ingredient a 1,8-disubstituted carbostyril derivative of the formula: ##STR1## wherein R is a chlorine, bromine or fluorine atom or methyl group, A is an ethylene or vinylene group and X is an oxygen or sulfur atom, and an inert carrier or diluent.
摘要:
3,4-Disubstituted benzoxa(thia)zole-2-one derivatives of the formula; ##STR1## wherein R.sub.1 is a halogen atom or methyl group, R.sub.2 is a methyl or ethyl group and X and Y are individually an oxygen or sulfur atom, and their preparation and use as a fungicide.
摘要:
A process for producing novel 1,4-benzothiazine derivatives (I), ##STR1## (in which X is a halogen atom) and their derivatives, ##STR2## wherein R is a (C.sub.1 -C.sub.5) alkyl, (C.sub.3 -C.sub.6) cycloalkyl, phenyl, substituted phenyl, phenyl (C.sub.1 -C.sub.5) alkyl or phenoxy (C.sub.1 -C.sub.5) alkyl group, and herbicides containing these compounds as an active ingredient. Compound (I) is produced by the reaction between Compound (II) and phosphorus pentasulfide; Compound (II) is produced (1) by the reaction between an aminothiophenol (III), ##STR3## (in which X is a halogen atom), and a halogenated acetic acid, (2) by the ring closure of Compound (VI), (3) by the reduction and ring closure of Compound (VIII), and (4) by the hydrolysis and ring closure of Compound (X); Compound (VI) is produced by the reaction between Compound (III) and a halogenated acetyl halide; Compound (VIII) is produced by the oxidation of Compound (III) followed by reaction with a halogenated acetyl halide; and Compound (X) is produced by the reaction between Compound (III) and a halogenated acetic ester. Compounds (I), (II), (VI), (VIII) and (X) have a herbicidal activity.
摘要:
An amide compound of the formula: ##STR1## wherein R.sup.1 and R.sup.2 are, the same or different, each a hydrogen atom or a C.sub.1 -C.sub.3 alkyl group and R.sup.3 is a 2-furyl group, a 3-furyl group, a 2-thienyl group or a 3-thienyl group, which is useful as an agricultural fungicide.
摘要:
A compound of the formula: ##STR1## wherein R is a C.sub.1 -C.sub.4 alkyl group, a C.sub.3 -C.sub.4 alkenyl group or a C.sub.3 -C.sub.4 cycloalkyl group, X is a chlorine atom or a bromine atom and Y is a hydrogen atom or a C.sub.1 -C.sub.4 alkoxy group, which is useful as a herbicide.