摘要:
The invention concerns novel pesticidal esters of the pyrethrin or pyrethroid type in which the methylene group bonded to the ester carbonyl and/or ester oxygen bears a fluorine substituent. The compounds of the invention are active against insect pests including flies, moths, aphids and beetles and acarina pests including ticks.
摘要:
Novel esters of the formula ##STR1## wherein R.sub.1 and R.sub.2 are individually selected from the group consisting of carbamoyl and R.sub.1 ' and R.sub.2 ', R.sub.1 ' and R.sub.2 ' are individually selected from the group consisting of hydrogen, halogen, alkyl of 1 to 6 carbon atoms, aryl of 6 to 10 carbon atoms, aralkyl of 7 to 13 carbon atoms, alkoxycarbonyl of 2 to 5 carbon atoms and --CN, R.sub.3 and R.sub.3 ' are individually selected from the group consisting of hydrogen, halogen, alkenyl of 2 to 3 carbon atoms and alkyl of 1 to 3 carbon atoms, Y' is selected from the group consisting of ##STR2## R.sub.4 ' and R.sub.5 ' are individually selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms, fluorine, bromine, chlorine and R.sub.4 ' and R.sub.5 ' together with the carbon atom to which they are attached form an optionally unsaturated hydrocarbon ring or heterocycle of 3 to 7 chain members and a heterocycle of the formula X is selected from the group consisting of sulfur and oxygen or R.sub.4 ' is cyano and R.sub.5 ' is phenyl or R.sub.4 ' is hydrogen and R.sub.5 ' is selected from the group consisting of cyano, ##STR3## AlK is alkyl of 1 to 4 carbon atoms, the double bond in the 1- position of the vinyl side chain of formula (A) having (E) or (Z) configuration, R.sub.6 is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms and alkoxycarbonyl of 2 to 5 carbon atoms, the substituents on the cyclopropane ring of formula (A) and (C) have the cis or trans, racemic or optically active configuration, Z.sub.1 is alkyl of 1 to 4 carbon atoms, Z.sub.2, Z.sub.3 and Z.sub.4 are individually selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms and halogen and the asymetric carbon of formula (D) may be (S) or (R) configuration or a racemic mixture thereof and the carbon atom in the 1- position of the alcohol moiety may have (R), (S) or racemic configuration having insecticidal properties and their preparations.
摘要:
The (+), (-) and (.+-.) forms of the compounds of formula I ##STR1## wherein R.sup.1 is hydrogen or a methoxy, ethoxy, propoxy, methylthio, ethylthio, propylthio, fluoro, chloro, bromo, methyl, ethyl, nitro or amino group, andR.sup.2 is a hydrogen or methyl group or R.sup.1 and R.sup.2 together form a methylenedioxy group;R.sup.3 is hydrogen, or a lower alkyl group, or one of the following groups (a) to (d):(a) m-phenoxybenzyl,(b) 2-benzyl-4-furylmethyl(c) .alpha.-cyano-m-phenoxybenzyl(d) 3-4-methylenedioxy-benzyl,and R.sup.4 and R.sup.5 are the same or different groups and each is a fluoro, bromo, chloro or methyl group.The compounds of formula I in which R.sup.3 is one of groups (a) to (d) are extremely active as insecticides (except when R.sup.1 is an amino group). The compounds also possess the property of contact repellency to insects.
摘要:
Novel synergistic insecticidal compositions comprising as the active ingredient an insecticidally effective amount of a synergistic mixture of 90 to 60% by weight of (S) 1-oxo-2-allyl-3-methyl-cyclopent-2-en-4-yl d trans chrysanthemate and 10 to 40% by weight of (R) 1-oxo-2-allyl-3-methyl-cyclopent-2-en-4-yl d trans chrysanthemate and to a novel method of combatting arthropodes.
摘要:
A compound of the formula, ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are respectively hydrogen atom or methyl, R.sub.5 is a member of ##STR2## wherein R.sub.6 is hydrogen atom or methyl, R.sub.7 is alkenyl, alkadienyl, alkynyl or benzyl, R.sub.8 is hydrogen atom, ethynyl or cyano, R.sub.9 is hydrogen atom, a halogen atom or alkyl, R.sub.10 is a halogen atom, alkyl, alkenyl, alkynyl, benzyl, thenyl, furylmethyl, phenoxy, substituted phenoxy or phenylthio, or R.sub.9 and R.sub.10 are bonded at the ends to form polymethylene chain containing or not containing oxygen or sulfur atom, Y is oxygen atom, sulfur atom or --CH.dbd.CH--, n is 1 or 2, Z is phthalimido, thiophthalimido, di- or tetra-hydrophthalimido or dialkylmaleimido, R.sub.11 is phenyl, thienyl or furyl and X is a halogen atom, which is useful as an active ingredient of insecticides.
摘要:
New cyclopropane compounds have the formula ##STR1## wherein Y and Z each independently is oxygen or sulfur and X is chlorine, bromine or OR in which R is hydrogen, a salt-forming cation, an alkyl group or residues of certain other alcohols. The compounds are pesticides or intermediates therefore.
摘要:
Novel cyclopropane carboxylic acid esters of the formula ##STR1## wherein X.sub.1 is selected from the group consisting of hydrogen, fluorine, chlorine and bromine, X.sub.2 is selected from the group consisting of fluorine, chlorine and bromine, X.sub.3 is selected from the group consisting of chlorine, bromine and iodine and R is selected from the group consisting of ##STR2## and benzyl optionally substituted with at least one member of the group consisting of alkyl of 1 to 4 carbon atoms, alkenyl of 2 to 6 carbon atoms, alkenyloxy of 2 to 6 carbon atoms, alkadienyl of 4 to 8 carbon atoms, methylenedioxy, benzyl and halogens, R.sub.1 is selected from the group consisting of hydrogen and methyl, R.sub.2 is selected from the group consisting of monocyclic aryl and --CH.sub.2 --C.tbd.CH,R.sub.3 is an aliphatic of 2 to 6 carbon atoms having at least one double bond, R.sub.4 is selected from the group consisting of hydrogen, --CN and --C.tbd.CH, R.sub.5 is selected from the group consisting of chlorine and methyl, n is 0, 1 or 2, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 are individually selected from the group consisting of hydrogen, chlorine and methyl and S/I indicates that the ring may be aromatic, dihydro or tetrahydro having pesticidal properties, and a process for their preparation.
摘要:
The (+), (-) and (.+-.) forms of the compounds of formula I ##STR1## wherein R.sup.1 is hydrogen or a methoxy, ethoxy, propoxy, methylthio, ethylthio, propylthio, fluoro, chloro, bromo, methyl, ethyl, nitro or amino group, andR.sup.2 is a hydrogen or methyl group or R.sup.1 and R.sup.2 together form a methylenedioxy group;R.sup.3 is hydrogen, or a lower alkyl group, or one of the following groups (a) to (d):(a) m-phenoxybenzyl(b) 2-benzyl-4-furylmethyl(c) .alpha.-cyano-m-phenoxybenzyl(d) 3,4-methylenedioxy-benzyl, andR.sup.4 and R.sup.5 are the same or different groups and each is a fluoro, bromo, chloro or methyl group.The compounds of formula I in which R.sup.3 is one of group (a) to (d) are extremely active as insecticides (except when R.sup.1 is an amino group). The compounds also possess the property of contact repellency to insects.
摘要:
Compounds of the formula ##STR1## wherein R.sup.1 is a hydrocarbyl group, W is a chlorine or bromine atom or --OR in which R is H, a salt-forming cation, an alkyl group or the residue of a pyrethroid alcohol are new pesticides or intermediates therefore. The compounds are prepared using a multi-step synthesis starting from the natural terpene, 3-carene.
摘要:
(1R,trans)-cyclopropane compounds, substantially free of other stereoisomers, and having the formula ##STR1## wherein X is chlorine, bromine or OR in whichR is hydrogen, a salt-forming cation, an alkyl group or residues of certain other alcohols; andR.sup.1 is certain optionally halogenated hydrocarbyl groups, are highly active pesticides or intermediates therefore.