摘要:
A process for the production of a cyclopentenol compound represented by the formula I: ##STR1## wherein R.sub.1 represents a 2-propenyl group or a 2-propynyl group from a cyclopentenolone compound represented by the formula II: ##STR2## by protecting the hydroxyl group of the compound II, reacting the protected compound II with a reagent system obtained from TiCl.sub.4, Zn and CH.sub.2 Br.sub.2 or CH.sub.2 I.sub.2 and removing the protecting group from the resulting reaction product.
摘要翻译:制备由式I表示的环戊烯醇化合物的方法:其中R 1表示由式II表示的环戊烯醇酮化合物的2-丙烯基或2-丙炔基:(II) )保护化合物II的羟基,使保护的化合物II与由TiCl 4,Zn和CH 2 B 2或CH 2 I 2获得的试剂体系反应,并从所得反应产物中除去保护基团。
摘要:
The present invention provides an ester compound represented by a formula I: ##STR1## wherein R.sub.1 denotes a hydrogen atom or a methyl group; R.sub.2 represents a 1-methyl-2-propenyl group, a 1-methyl-2-propynyl group, a 3,3-dihalogeno-1-methyl-2-propenyl group, or a C.sub.1 -C.sub.1 6 alkyl group which may be substituted with at least one halogen atom; and R.sub.3 represents an acid residue of pyrethroids.The invention also relates to an active agent for controlling noxious insect pests containing the ester compound as an active ingredient, an intermediate for production of the ester compound and a process for producing the intermediate. The ester compound represented by the formula I has good activities for controlling noxious insect pests.
摘要:
The present invention provides a compound represented by the formula: ##STR1## wherein R.sub.1 denotes a hydrogen atom or a methyl group; R.sub.2 represents a 1-methyl-2-propenyl group, a 1-methyl-2-propynyl group, a 3,3-dihalogeno-1-methyl-2-propenyl group or a C.sub.1 -C.sub.6 alkyl group which may be substituted with at least one halogen atom; and A' represents a hydrogen atom or a protecting group for a hydroxyl group. The compound is useful in the preparation of esters which can be used to control insect pests.
摘要:
This invention relates to a novel compound represented by the following general formula (I), its production, and an insecticidal and acaricidal composition containing it as an active ingredient: ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, are a hydrogen atom, a halogen atom, a lower alkyl group, a trifluoromethyl group, a lower alkoxyl group, a lower alkenyloxy group or a halogenated lower alkoxyl group or are, taken together, a methylenedioxy group; R.sub.3 is a vinyl group or a ethynyl group; R.sub.4 is a hydrogen atom or a lower alkyl group; R.sub.5 is a hydrogen atom or a fluorine atom; R.sub.6 is a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxyl group or a trifluoromethyl group; Z is a nitrogen atom or a group represented by the formula --CH.dbd.; when Z is a nitrogen atom, Y is an oxygen atom; and when Z is a group of the formula --CH.dbd., Y is an oxygen atom, a sulfur atom, a methylene group or a group represented by the formula --NH--.
摘要:
This invention relates to novel carboxylic acid esters represented by the formula (I) below, methods for production thereof and insecticides containing them as the active ingredient, and an alcohol compound useful as an intermediate for manufacturing carboxylic acid esters represented by the formula (I). ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; when R.sub.1 is a hydrogen atom, R.sub.2 represents a group of the formula ##STR2## in which X and Y are the same or different and represent a hydrogen atom, a methyl group, a halogen atom or a halogenated lower alkyl group, and when R.sub.1 is a methyl group, R.sub.2 represents a methyl group; R.sub.3 represents hydrogen atom or a methyl group; and R.sub.4 represents a hydrogen atom, a lower alkyl group, a lower alkenyl group or a lower alkynyl group.
摘要:
An ether compound represented by the following general formula (I), its production method and an insecticidal and acaricidal composition containing as an active ingredient: ##STR1## wherein X represents an oxygen atom or a group represented by the formula --NH--; when X represents an oxygen atom, Z represents a nitrogen atom or a group represented by the formula --CH.dbd.; when X represents --NH--, Z represents --CH.dbd.; when X represents an oxygen atom and Z represents a nitrogen atom, or when X represents --NH--, R.sub.1 represents a hydrogen or fluorine atom; when X represents an oxygen atom and Z represents --CH.dbd., R.sub.1 represents a fluorine atom; Y.sub.1 and Y.sub.2, which may be identical or different, represent a hydrogen or halogen atom or an alkyl, haloalkyl, alkoxyl or haloalkoxyl group; m and n represent an integer of 1 to 4 and the sum of them is not more than 5; R.sub.2 represents a methyl group or a chlorine atom; and R.sub.3 represents a methyl group, a halogen atom or a methoxy group.
摘要:
This invention relates to a novel carboxylic acid esters represented by the formula (I) below and insecticides containing them as an active ingredient, ##STR1## wherein R represents a C.sub.1-5 alkyl group, a C.sub.3-6 cycloalkyl group, a C.sub.3-6 alkenyl group, a C.sub.3-6 alkynyl group or a C.sub.1-5 haloalkyl group.
摘要:
This invention relates to novel carboxylic acid esters represented by the formula (I) below, methods for their production and insecticides and/or acaricides containing them as an active ingredient, ##STR1## wherein R.sup.1 represents a C.sub.1-5 alkyl group, a C.sub.2-4 alkenyl group or a C.sub.2-4 alkynyl group; R.sup.2 represents a fluorine atom or a methyl group; and R.sup.3 represents a hydrogen atom or a methyl group.
摘要:
An ether compound represented by the following general formula (I), its produciton method and an insecticidal and/or acaricidal composition containing it as an active ingredient: ##STR1## wherein R.sub.1 and R.sub.2, which may be identical or different, represent a hydrogen or halogen atom or a lower alkyl, lower haloalkyl, lower alkoxyl, lower haloalkoxyl, lower alkenyl or lower alkenyloxyl group, or represent, taken together, methylenedioxy, lower alkylene, ethyleneoxy or lower alkylethyleneoxy group; R.sub.3 represents a hydrogen or fluorine atom; R.sub.4 represents a hydrogen or halogen atom or a lower alkyl, lower haloalkyl, lower alkoxyl or lower haloalkoxyl group; m represents an integer of 1 or 2; Y represents an oxygen or sulfur atom or a group represented by the formula --CH.sub.2 -- or --NH--; and Z represents a nitrogen atom or a group represented by the formula --CH.dbd., and its starting materials.
摘要:
A method for producing 2,2,3,3-tetramethylcyclopropane-1-carboxylic acid and intermediate compounds thereof. The 2,2,3,3-tetramethylcyclopropane-1-carboxylic acid is a very useful intermediate for synthesizing insecticidal and acaricidal compounds of pyrethroid type.