摘要:
5-Halo-4-fluoro-4,7,7-trimethyl-3-oxabicyclo[4.1.0]heptan-2-ones, process for their preparation and their use for preparing cyclopropanecarboxylic acids Compounds of the formula (I), in which Hal is Cl, Br or I, are suitable for use as intermediates in the preparation of pyrethroids.
摘要:
An insecticidal composition comprising an insecticidally effective amount of (S) .alpha.-cyano-3-phenoxy-benzyl(1R, trans) 2,2-dimethyl-3-[(.DELTA.Z) 2-fluoro-3-oxo-3-methoxy-propenyl]-cyclopropane carboxylate and an inert carrier having excellent insecticidal activity and low mammal toxicity.
摘要:
A compound selected from the group consisting of all stereoisomeric forms and mixtures thereof of a compound of the formula ##STR1## wherein Y and Z are individually selected from the groups consisting of hydrogen, halogen, --CF.sub.3, alkyl, alkoxy and alkylthio of 1 to 8 carbon atoms and aryl, aryloxy and arylthio of up to 14 carbon atoms optionally substituted with at least one member of the group consisting of halogen, hydroxy optionally esterified etherified, --CF.sub.3 and alkyl of 1 to 8 carbon atoms and R is alkyl of 1 to 8 carbon atoms or the remainder of a pyrethrinoid alcohol having excellent pesticidal properties and their preparation and intermediates.
摘要:
Novel all possible stereoisomers and mixtures thereof of vinylsulfone nor-pyrethric compounds of the formula ##STR1## wherein R.sub.a is selected from the group consisting of alkyl of 1 to 18 carbon atoms, alkenyl and alkynyl of 2 to 18 carbon atoms, cycloalkyl of 3 to 18 carbon atoms, cycloalkylalkyl of 4 to 18 carbon atoms and aryl of 6 to 14 carbon atoms unsubstituted or substituted with at least one functional group, n is 0, 1 or 2, R.sub.b is selected from the group consisting of alkyl of 1 to 18 carbon atoms, alkenyl and alkynyl of 2 to 18 carbon atoms, cycloalkyl of 3 to 18 carbon atoms, cycloalkylalkyl of 4 to 18 carbon atoms and aryl of 6 to 14 carbon atoms, all unsubstituted or unsubstituted with at least one functional group or R.sub.a and R.sub.b together with the C-S-C to which they are attached form ##STR2##
摘要:
All stereoisomeric forms and mixtures thereof of a compound of the formula ##STR1## wherein the cyclopropane copula has (1R, cis) or (1R, trans) structure, the geometry of the double bond carried by the 3-carbon atom is (E) or (Z), X is halogen, Z is selected from the group consisting of hydrogen, methyl, --CN and --C.tbd.CH, n is an integer from 1 to 5, m represents the number 5-n, Y is selected from the group consisting of hydrogen, halogen, --CH.sub.2 --CN, --OH, optionally unsaturated alkyl of 1 to 8 carbon atoms unsubstituted or substituted with at least one halogen, --CN, --COOAlk, --COAlk, --(CH.sub.2).sub.m' OAlk, --(CH.sub.2).sub.m' --S--Alk, --(CH.sub.2).sub.m' --N(Alk).sub.2, --Si(Alk).sub.3, --OAr and (CH.sub.2).sub.m' --Ar, m' is 0, 1,2,3 or 4, Alk is optionally unsaturated alkyl of 1 to 8 carbon atom unsubstituted or substituted with at least one halogen and Ar is aryl of 6 to 14 carbon atoms and the Ys identical or different may be on any position of the phenyl having pesticidal properties.
摘要:
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.
摘要:
A novel process for the preparation of sulfonic acid esters containing a lactonic ring comprising compounds in the trans form in the 4- and 5-positions having (4SR,5RS), (4S,5R) or (4R,5S) configuration of the formula ##STR1## wherein Z is selected from the group consisting of alkyl of 1 to 4 carbon atoms and cycloalkyl and monocyclic aryl optionally substituted with at least one member of the group consisting of alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, halogen and nitro and R is organic residue of an optionally chiral alcohol of the formula ROH and a process using the compounds of formula I to prepare compounds of (1RS, 4RS, 5SR), (1S, 4S, 5R) or (1R, 4R, 5S) configuration of the formula ##STR2## wherein X is selected from the group consisting of hydrogen and R useful for the preparation of insecticidally active esters.
摘要:
Novel 4-methyl-3-formyl-pentanoic acid derivative of the formula ##STR1## wherein Hal is a halogen, R.sub.1 is alkyl of 1 to 12 carbon atoms and A and B are .dbd.0 or A is halogen and B is --OR.sub.2 and R.sub.2 is alkyl of 1 to 12 carbon atoms, their preparation and their use as intermediates.
摘要:
Novel lactones of cis 2,2-dimethyl-cyclopropane-1-carboxylic acids of the formula ##STR1## wherein X.sub.1, X.sub.2 and X.sub.3 when identical are selected from the group consisting of chlorine and bromine and when at least two are different, are selected from the group consisting of fluorine, chlorine and bromine and a novel process for their preparation and a process for the preparation of cis 2,2-dimethyl-cyclopropane-1-carboxylic acids of the formula ##STR2## The acids of formula IV are useful to prepare esters of elevated insecticidal activity.
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.