Abstract:
There is disclosed a process process for producing a cyclopropanecarboxylate of formula (1): which process comprises reacting cyclopropanecarboxylic acid of formula (2): with a monohydroxy compound of formula (3): R6OH (3), in the presence of a catalyst compound comprising an element of to Group 4 of the Periodic Table of Elements.
Abstract:
The derivatives of esters of carboxylic acids represented by the general formula I: ##STR1## wherein: R.sub.1 is an alkyl group having a chain or branched chain of 1 to 4 carbon atoms; andR.sub.2 is a group represented by the following general formulae II, III or IV; ##STR2## wherein: R.sub.3 is a hydrogen atom or a methyl group;X is an oxygen atom or a methylidene group;R.sub.4 is an hydrogen atom or an ethynyl group;R.sub.5 and R.sub.6 are alike or differently selected from the group consisting of hydrogen, fluorine, chlorine atoms or methyl group;R.sub.7 is a hydrogen atom or a trifluoromethyl group;R.sub.8 is selected from the group consisting of propargyl, methoxymethyl or methylthio groups; orR.sub.7 and R.sub.8 may combine with each other to form a methylenedioxy chain; and the process for manufacturing the same, and the insecticides and the insect proofing agents containing the same as an active ingredient.The compounds represented by the general formula I are useful ingredients of insecticides and insect proofing agents which have both a fast-acting property and a lethal effect, and moreover, are highly safe to mammals; and therefore, insecticides and insect proofing agents containing the above compounds have a highly practical use.
Abstract:
Ester compounds represented by the following formula (I) ##STR1## wherein R is a methyl, ethyl, n-propyl or allyl group, have excellent effects on the control of harmful pests, and they are, therefore, useful as the active ingredients of pesticides.
Abstract:
A novel process for the preparation of isomers or mixtures of isomers of compounds of the formula ##STR1## and novel intermediates therefore.
Abstract:
A process for the preparation of trifluoromethylvinyl compounds in all their possible steroisomeric forms and mixtures thereof comprising reacting a salt of trifluoroacetic acid with a halovinyl compound in the presence of a cuprous salt to obtain the same stero-specific compound and all possible stero-isomeric forms and mixtures thereof of 1R, trans compounds of the formula ##STR1## wherein R is an alcohol residue used in pyrethrinoid series, or an alcohol residue capable of blocking the acid function, and Z is aryl or haloaryl and the double bond has Z geometry having pesticide activity.
Abstract:
A veterinary composition is disclosed which is suitable against endoparasites and which contains as active ingredients:(a) alpha-(cyano)-3-(2,2-dichlorovinyl)-2,2-dimethyl-cyclopropane-carboxylic acid-3-phenoxybenzyl ester or any isomeric mixture thereof; and(b) 5(6)-propylthio-2-benzimidazolyl-methylcarbamate, wherein the weight ratio of the two respective compounds is 1:1 to 1.5:1, in combination with a carrier that is inert for veterinary purposes.
Abstract:
New insecticides are of formula: ##STR1## wherein R.sup.1 represents hydrogen or a methyl group; R.sup.2 represents hydrogen or a halogeno or lower alkyl group; R.sup.3 represents hydrogen or a halogen, lower alkyl (which is difference to R.sup.2 when R.sup.2 represents a lower alkyl group) or carboloweralkoxy group which contains at least 2 carbon atoms in the lower alkoxy residue when R.sup.2 represents methyl or R.sup.2 and R.sup.3 together with the carbon atom to which they are attached represent a cycloalkylene ring having at least one endocyclic carbon to carbon double bond; with the proviso that (a) R.sup.2 and R.sup.3 each represent hydrogen only when R.sup.1 represents methyl and (b) R.sup.3 contains at least 2 carbon atoms when R.sup.1 and R.sup.2 each represent hydrogen; and R represents a group which form insecticidal esters with chrysanthemic acid e.g. 5-benzyl-3-furylmethyl, 3-phenoxybenzyl, .alpha.-cyano-3-phenoxybenzyl. The esters are prepared by forming the ester linkage conventionally or by a Wittig reaction using a 3-formyl- or 3-acetyl-2,2-dimethyl cyclopropane carboxylic acid esterified with the desired residue or by an alkyl group which is subsequently converted to the desired residue.
Abstract:
Novel isomers and mixtures thereof of cyclopropane carboxylic acid derivatives with a 3-unsaturated side chain of the formula ##STR1## wherein A' is selected from the group consisting of wherein B is selected from the group consisting of --CH.sub.2 --, ##STR2## --O-- and --S--, R.sub.4 is selected from the group consisting of hydrogen, --CH.sub.3,--C.tbd.N--CONH.sub.2, --CSNH.sub.2 and --C.tbd.CH, n is an integer from 0, 1 or 2 and R.sub.5 is selected from the group consisting of halogen and --CH.sub.3 ##STR3## wherein R.sub.13 is selected from the group consisting of hydrogen and ##STR4## wherein R.sub.13 has the above definition and the benzoyl is in the 3- or 4-position, ##STR5## wherein R.sub.14 is selected from the group consisting of hydrogen, methyl, ethynyl and --CN and R.sub.15 and R.sub.16 are individually selected from the group consisting of hydrogen, bromine and fluorine and ##STR6## wherein R.sub.14 has the above definition, p is 0, 1 or 2, each R.sub.17 is selected from the group consisting of alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkylsulfonyl of 1 to 4 carbon atoms, --CF.sub.3, 3,4-methylenedioxy, chlorine, bromine and fluorine B' is selected from the group consisting of --O-- and --S-- and R is selected from the group consisting of alkyl of 1 to 18 carbon atoms substituted with one or more, optionally different functional groups, aryl of 6 to 14 carbon atoms optionally substituted with one or more optionally different functional groups, the double bond having Z or E geometry having insecticidal and nematocidal activity as well as plant and animal acaricidal activity and their preparation.
Abstract:
New insecticides are of formula: ##STR1## wherein R.sup.1 represents hydrogen or a methyl group; R.sup.2 represents hydrogen or a halogeno or lower alkyl group; R.sup.3 represents hydrogen or a halogeno or carbo(lower alkoxy) group which contains at least 2 carbon atoms in the lower alkoxy residue when R.sup.2 represents methyl; with the proviso that (a) R.sup.2 and R.sup.3 each represent hydrogen only when R.sup.1 represents methyl, (b) when R.sup.1 and R.sup.3 each represent hydrogen and R.sup.2 represents alkyl, that alkyl group contains at least 2 carbon atoms and (c) when R.sup.3 represents halogeno, R.sup.2 represents hydrogen or halogeno; and R represents a group which forms insecticidal esters with chrysanthemic acid e.g. 5-benzyl-3-furylmethyl, 3-phenoxybenzyl, .alpha.-cyano-3-phenoxybenzyl. The esters are prepared by forming the ester linkage conventionally or by a Wittig reaction using a 3-formyl- or 3-acetyl-2,2-dimethyl cyclopropane carboxylic acid esterified with the desired residue or by an alkyl group which is subsequently converted to the desired residue.
Abstract:
Pyrethroid type insecticides described having the formula: ##STR1## wherein A=CF.sub.3 -C.dbd.C-, ##STR2## (X=H, F, Cl, Br: Y=Cl, Br) ##STR3## (group ##STR4## is bound to the hererocyclic ring in position 2 or 3) ##STR5## --CH.sub.2 --C.tbd.C--CH.sub.2 --R.sup.9 ; wherein:R.sup.1 =H, CN, C.tbd.CHR.sup.2 =3-phenoxy, 3-benzyl, 4-allyl, 4-propargyl.R.sup.3 =H, alkyl bound to the heterocyclic ring in position 3 or 2;R.sup.4 =(in position 4 or 5 of the heterocyclic ring)=benzyl, benzoyl, phenoxy, allyl, propargyl;Y=O, SR.sup.5 and R.sup.6 =alkyl C.sub.1 -C.sub.3, or R.sup.5 and R.sup.6 together form an orthocondensed aromatic, heteroaromatic or aliphatic, saturated or unsaturated ring;R.sup.7 and R.sup.8 (equal to or different from each other)=H, halogen, CH.sub.3 ; R.sup.9 =phenyl, vinyl, vinyl substituted, phenoxy,Compounds of general formula I are endowed with a high insecticide and acaricide activity.