摘要:
The present invention relates to novel aromatic alkane derivatives represented by the following general formula (I): ##STR1## wherein Ar stands for a substituted or unsubstituted phenyl or naphtyl group, R.sup.1 stands for a methyl, ethyl or isopropyl group and R.sup.2 stands for a hydrogen atom or a methyl group, or R.sup.1 and R.sup.2 together with the carbon to which they are attached jointly represent a substituted or unsubstituted cycloalkyl group, and R.sup.3 stands for a fundamental group of an alcohol which is usually used in a form of R.sup.3 OH as to natural or synthetic pyrethroids, and also to processes for the preparation of these compounds and the uses of these compounds.These compounds of the present invention have excellent insecticidal and acaricidal activities while the toxicities of these compounds are very low.
摘要:
The present invention relates to novel aromatic alkane derivatives represented by the following general formula (I): ##STR1## wherein Ar stands for a substituted or unsubstituted phenyl or naphthyl group, R.sup.1 stands for a methyl, ethyl or isopropyl group and R.sup.2 stands for a hydrogen atom or a methyl group, or R.sup.1 and R.sup.2 together with the carbon to which they are attached jointly represent a substituted or unsubstituted cycloalkyl group and R.sup.3, stands for a fundamental group of an alcohol which is usually used in a form of R.sup.3 OH as to natural or synthetic pyrethroids, and also to the uses of these compounds.These compounds of the present invention have excellent insecticidal and acaricidal activities while the toxicities of these compounds are very low.
摘要:
The present invention relates to 2-arylpropyl ether or thioether derivatives represented by the following general formula [I]: ##STR1## wherein Ar stands for an aryl group, R stands for a methyl or ethyl group, Y stands for an oxygen or sulfur atom, and B stands for a group represented by the following formula [II]: ##STR2## or the following general formula [III]: ##STR3## wherein Z stands for an oxygen or sulfur atom or a carbonyl or methylene group, R.sup.1 stands for a hydrogen or halogen atom or a lower alkyl group or a lower alkoxy group, and n is an integer of from 1 to 5 with the proviso that when n is 2 or more, the groups R.sup.1 may be the same or different, and also to processes for the preparation or these ethers of thioethers and a use of these ethers or thioethers.These compounds of the present invention have excellent insecticidal and acaricidal activities while the toxicity of these compounds are very low.
摘要:
2-Arylpropyl ether or thioether derivatives represented by the following general formula [I]: ##STR1## wherein Ar stands for an aryl group, R stands for a methyl or ethyl group, Y stands for an oxygen or sulfur atom, and B stands for a group represented by the following formula [II]: ##STR2## or the following general formula [III]: ##STR3## wherein Z stands for an oxygen or sulfur atom or a carbonyl or methylene group, R.sup.1 stands for a hydrogen or halogen atom or a lower alkyl group or a lower alkoxy group, and n is an integer of from 1 to 5 with the proviso that when n is 2 or more, the groups R.sup.1 may be the same or different,are produced by reacting a compound represented by the following formula (V): ##STR4## with a compound represented by the following formula (VI):B--CH.sub.2 --D (VI)wherein Ar, R and B are defined above, A is a halogen atom and D is Y--H in which Y is as defined above,in the presence of a base in dimethylsulfoxide or sulfolane. The compounds thus prepared have excellent insecticidal and acaricidal activities while the toxicity of these compounds are very low.
摘要:
A difluorobromomethyoxyphenyl derivative of the general formula ##STR1## wherein A represents an oxygen atom or a methylene group, and Y represents a hydrogen or fluorine atom. A miticide comprising the above derivative as an active ingredient is also provided.
摘要:
Novel dialkoxymethylimidazolidine derivatives of the formula (1) ##STR1## are described. Also, a preparation process of the derivatives and insecticidal compositions comprising the same are set forth. In addition, novel intermediate compounds of the formula (2) useful in preparing the derivatives of the formula (1) are also described along with their preparation process ##STR2##
摘要:
Herein disclosed are novel imidazolidine derivatives of the formula (I) and intermediates of the formula (II) ##STR1## wherein each R represents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, a halogen atom, an alkoxy group having from 1 to 6 carbon atoms, a methylenedioxy group, an alkylthio group having from 1 to 4 carbon atoms, a haloalkyl group having from 1 to 2 carbon atoms, a haloalkoxy group having from 1 to 4 carbon atoms, an alkylcarbonyl group having from 1 to 6 carbon atoms, an alkoxycarbonyl.group having from 1 to 6 carbon atoms, a hydroxy group, a cyano group, a nitro group, an alkylamino group having from 1 to 8 carbon atoms, a phenyl group, a phenoxy group, a benzyl group or a halopyridylmethyloxy group, and n is an integer of from 1 to 3, ##STR2## wherein R and n have, respectively, the same meanings as defined above. Processes for preparing the compounds of the formulas (I) and (II) are also described. Moreover, insecticidal compositions comprising an effective amount of the derivative (I) are described.
摘要:
Novel dialkoxymethylimidazolidine derivatives of the formula (1) ##STR1## are described. Also, a preparation process of the derivatives and insecticidal compositions comprising the same are set forth. In addition, novel intermediate compounds of the formula (2) useful in preparing the derivatives of the formula(1) are also described along with their preparation process ##STR2##
摘要:
Novel tetrahydro-1,3,5-thiadiazin-4-ones of the following general formula (I) or their salts which are useful as an insecticidal and acaricidal agent. ##STR1## In the formula, each of R.sup.1 and R.sup.2 represents a halogen atom or a C.sub.1 -C.sub.4 alkyl group; R.sup.3 represents a halogen atom, a C.sub.1 -C.sub.4 alkyl group, a C.sub.3 -C.sub.6 cycloalkyl group, a C.sub.1 -C.sub.4 alkoxy group, an acetyl group, a phenoxy group, a halo-substituted phenoxy group, a benzyl group, a benzyloxy group, a phenylcarbonyl group, a C.sub.1 -C.sub.4 haloalkyloxy group, a C.sub.1 -C.sub.4 haloalkyloxymethyl group, a C.sub.2 -C.sub.4 haloalkenyloxy group, a C.sub.1 -C.sub.4 haloalkylthio group, a C.sub.1 -C.sub.4 haloalkylthiomethyl group, a C.sub.2 -C.sub.4 haloalkenylthio group, a C.sub.1 -C.sub.8 haloalkyl group, a C.sub.2 -C.sub.8 haloalkenyl group, a C.sub.1 -C.sub.8 alkyloxycarbonyl group, a substituted phenoxycarbonyl group, or a substituted pyridyloxy group; m represents 0, 1, 2 or 3; and n represents 0, 1, 2 or 3.These novel thiadiazines are produced by reacting a compound of general formula (II) ##STR2## wherein R.sup.1 and m are as defined above, with a compound of general formula (III) ##STR3## wherein R.sup.2, R.sup.3 and n are as defined above.
摘要:
In a magnetic head manufacturing method, a floated surface of each block having plural magnetic head elements formed and arranged on a substrate is ground and lapped in a grinding/lapping step. The grinding/lapping step contains an anglea djusting step for adjusting the angle of the floated surface of the block with reference to a magnetic-head-element formed surface of a substrate and grinding the floated surface concerned, and a finishing lapping step of lapping the floated surface at an angle adjusted in the angle adjusting step.