摘要:
Disclosed is a 3-(unsubstituted or substituted benzyl)-1-alkyl-2-oxocyclopentane carboxylic acid alkyl ester derivative as represented by the general formula (I): ##STR1## where R.sup.1 and R.sup.2 are each a lower alkyl group;X is a halogen atom, a cyano group, an alkyl group, a haloalkyl group, a phenyl group or a nitro group; andm is 0 or an integer from 1 to 5 and when m is greater than 1 each X can be the same or different.Further, disclosed is a method for the preparation of the compound (I) by carrying out the benzylation, rearrangement, and alkylation from the 2-oxocyclopentane carboxylic acid alkyl ester derivative without isolation of any intermediate compound. In addition, a fungicide is provided in which the 3-(unsubstituted or substituted benzyl)-1-alkyl-2-oxocyclopentane carboxylic acid alkyl ester derivatives (I) is contained as an active ingredient.Furthermore, it can provide 2-(unsubstituted or substituted benzyl)-5-alkylcyclopentanone derivatives from the 3-(unsubstituted or substituted benzyl)-1-alkyl-2-oxocyclopentane carboxylic acid alkyl ester derivatives (I).
摘要:
Disclosed herein is a process for preparing a cis-azole derivative represented by the general formula (I) ##STR1## wherein R.sup.1 and R.sup.2 denote each a hydrogen atom or an alkyl group, R denotes a halogen atom, a nitro group, a cyano group, an alkyl group, a haloalkyl group or a phenyl group, A denotes a nitrogen atom or a methine group, and n stands for an integer of 1-5, which comprises reducing an azolylmethyloxabicyclohexane derivative represented by the general formula (VI) ##STR2## wherein R.sup.1, R.sup.2, R, A and n have the same meanings as defined above. A fungicidal composition comprising the azolylmethyloxabicyclohexane derivative represented by the above-mentioned general formula (VI) is also desclosed.
摘要:
Disclosed herein is a process for preparing a cis-azole derivative represented by the general formula (I) ##STR1## wherein R.sup.1 and R.sup.2 denote each a hydrogen atom or an alkyl group, R denotes a halogen atom, a nitro group, a cyano group, an alkyl group, a haloalkyl group or a phenyl group, A denotes a nitrogen atom or a methine group, and n stands for an integer of 1-5,which comprises reducing an azolylmethyloxabicyclohexane derivative represented by the general formula (VI) ##STR2## wherein R.sup.1, R.sup.2, R, A and n have the same meanings as defined above. A fungicidal composition comprising the azolylmethyloxabicyclohexane derivative represented by the above-mentioned general formula (VI) is also desclosed.
摘要:
Disclosed is a 1,3,2-dioxathiolan-S-oxide derivative as represented by the general formula (I): ##STR1## (where R.sub.1 and R.sub.2 are identical to or different from each other and each is a hydrogen atom or a lower alkyl group;X is a halogen atom, a cyano group, a lower alkyl group, a haloalkyl group or a phenyl group;m is 0 or an integer from 1 to 5; and when small m is greater than 1 each x can be the same or different andn is 1 or 2).A 1,3,2-dioxathiolan-2-oxide derivative of the compound as represented by the general formula (I-I) is prepared by reacting a hydroxymethylcyclopentanol derivative with thionyl chloride; and a 1,3,2-dioxathiolan-2,2-dioxide derivative (I-II) thereof is prepared by oxidizing the compound (I-I). The compounds (I) can be employed as fungicides and intermediate compounds for the preparation of azolylmethylcyclopentanol derivatives.
摘要:
[Technical Problem]To provide a novel imino derivative capable of being an insecticide compound having excellent characteristics such as sustained effects and broad spectrum.[Solution to Problem]To provide an imino derivative represented by Formula (1). wherein “Ar” denotes a heterocyclic group which may have a substituent on the ring; “X” denotes a sulfur atom or CH2, NR; “R” denotes a hydrogen atom or an alkyl group; “Y” is selected from COR1 or CONR3R4, CONHCOR5, CO2R9; and each of “R1”, “R3”, “R4”, “R5”, and “R9” denotes a hydrogen atom or a certain substituent.
摘要:
[Technical Problem] To provide a novel imino derivative capable of being an insecticide compound having excellent characteristics such as sustained effects and broad spectrum.[Solution to Problem] To provide an imino derivative represented by Formula (1). wherein “Ar” denotes a heterocyclic group which may have a substituent on the ring; “X” denotes a sulfur atom or CH2, NR; “R” denotes a hydrogen atom or an alkyl group; “Y” is selected from COR1 or CONR3R4, CONHCOR5, CO2R9; and each of “R1”, “R3”, “R4”, “R5”, and “R9” denotes a hydrogen atom or a certain substituent.
摘要:
N-heterocyclicmethylpropylamine derivatives of formula (I): and acid addition salts thereof; wherein R1 represents hydrogen, halogen, alkyl, alkenyl, halogenated alkyl, alkoxy, halogenated alkoxy, hydroxyl, cyano, nitro, phenyl optionally having a substituent on a ring thereof or phenoxy; n represents an integer of 0-5; R2 represents a heterocycle containing at least one nitrogen atom as the hetero atom and optionally having a substituent on a ring thereof; and R3 represents hydrogen or C1-C5 alkyl.
摘要:
A process for separating a cis isomer from a mixture of the cis isomer and a trans isomer of an azolylmethylcyclopentanol derivative of the formula (I): ##STR1## wherein, R.sup.1 and R.sup.2 each independently represent a hydrogen atom or an alkyl group; each X represents a halogen atom, an alkyl group, a haloalkyl group, a phenyl group, a cyano group or a nitro group; n is an integer of from 0 to 5; A represents a nitrogen atom or a CH group; and each X may be identical or different when n is an integer of from 2 to 5, comprising the steps of dehydrating selectively the trans isomer in the presence of an acid and isolating the cis isomer.
摘要:
An azole derivative represented by the formula (I): ##STR1## wherein X and Y independently represent a halogen atom, a phenyl group or a hydrogen atom, providing that at least one of X and Y is not a hydrogen atom, n represents an integer of 0, 1 or 2, and A represents a nitrogen atom or CH, and an agricultural/horticultural fungicide comprising the azole derivative as an active ingredient are disclosed.The azole derivative exhibits an excellent effect in preventing and curing a wide spectrum of plant diseases and possesses low toxicity to mammals.
摘要:
To provide a novel imino derivative capable of being an insecticide compound which is excellent in characteristics such as sustained effects and a broad spectrum.An imino derivative represented by Formula (A) shown below: wherein “Ar” represents a heterocyclic group which may have a substituent on the ring, “X” represents a sulfur atom or CH2, NR; “R” represents a hydrogen atom or an alkyl group; “Ya” is selected from “C(═S)NR1R2”, “C(═S)SR3”, “C(═O)SR4”, “C(═S)OR4”, “SO2Zα”, and “OZβ”; and, each of “R1” to “R4”, “Zα”, and “Zβ” represents a hydrogen atom or a certain substituent; is provided.