Abstract:
There is disclosed a process for preparing polyhalogenated carbinols having formula: ##STR1## by reacting a compound having formula: ##STR2## with a system consisting of a compound having formula: ##STR3## and of a divalent metal or of a metal salt, in protic dipolar solvents, in which formulaeR=H, an alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkadienyl, phenyl, naphthyl, anthracyl group, a heterocyclic radical, optionally substituted;R'=H, a haloalkyl, --CN, --COOR" group with R" equal to H or to an alkyl group;X.sup.1 =Cl, Br; =X.sub.2 =F, Cl, Br;X.sup.3 =Cl, Br, CF.sub.3, CCl.sub.3 ; Y=Br or Cl when X.sup.1, X.sup.2 and X.sup.3 are different from Br.
Abstract:
There are disclosed two hydroquinone diethers having at least one acetylenic and halogen-substituted chain and exhibiting juvenile hormone and acaricide activity and which show unexpected activity on Tenebrio molitor and Tribolium confusum.The two hydroquinone ethers are obtained by:(a) reacting one mole of hydroquinone alkali metal salt with two moles of 1,5-dichloropent-4-yne, or equimolar quantities of an alkali metal salt of 4-phenoxy-phenol with 1,5-dichlorpent-4-yne; or(b) by reacting the hydroquinone alkali metal salt or the 4-phenoxy-phenol alkali metal salt with the indicated quantities of 1,1,1,5-tetrachloropentane and then dehydrohalogenating the condensation product with alkali metal carbonates or hydroxides in dimethylsulphoxide.
Abstract:
Benzimidazol(2)methylcarbamates substituted in position 5(6) are disclosed, together with a method for preparing them, and use thereof in suitable form for combatting intestinal, pulmonary and hepatic parasites, particularly Helminthes, in animals.
Abstract:
There are disclosed ethers and thioethers having a benzyl or phenyl terminal group and another terminal group which is halogenated, and which ethers and thioethers exhibit juvenile hormone activity (i.e., function as inhibitors of the development of insects from their larval state to the adult state), as well as acaricide activity.Methods for preparing the ethers and thioethers are also disclosed.
Abstract:
Compounds are disclosed having formula: ##STR1## wherein: R is Cl, F;R.sub.1 is H, Cl, F;R.sub.2 and R.sub.5, equal to or differing from each other, are H, halogen, alkyl C.sub.1 -C.sub.4 ;R.sub.3 and R.sub.4, equal to or differing from each other, are: H, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkenyl, haloalkenyl, alkenyloxy, haloalkenyloxy or alkynyl;Z is O, S or a group NR.sub.7, wherein R.sub.7 is alkyl C.sub.1 -C.sub.3 or H;Y is alkylene C.sub.2 -C.sub.4, haloethylene or haloethenyl;R.sub.6 is alkyl C.sub.1 -C.sub.4, haloalkyl C.sub.1 -C.sub.4, alkenyl C.sub.3 -C.sub.4, haloalkenyl C.sub.3 -C.sub.4, cycloalkyl C.sub.3 -C.sub.4, halocycloalkyl C.sub.3 -C.sub.4 or cycloalkenyl C.sub.3 -C.sub.4.The compounds having formula (I) are endowed with an elevated insecticide activity, which shows itself chiefly against insect larvae and eggs.
Abstract:
A process for preparing 1,1-dihalo-1,2,2,2-tetrafluoroethanes by isomerization of 1,2-dihalotetrafluoroethanes at their reflux temperature, by using, as a catalyst, the reaction product prepared "in situ" from an anhydrous aluminum halide with at least equimolecular amounts of the isomer, 1,1-dihalo-1,2,2,2-tetrafluoroethane in a medium consisting of 1,2-dihalotetrafluoroethane. The products find application as intermediates for pyrethroid insecticides.
Abstract:
There are described compounds of formula: ##STR1## in which one of R and R.sup.1 is F or Cl and the other is H, F or Cl;X is a 1,4-phenylene or pyridyl bound in positions 2 and 5, optionally substituted;Y is a phenyl, 2- or 3-pyridyl, optionally substituted.The compounds of formula I are endowed with a high insecticide activity which is mainly directed against insect larvae and eggs.
Abstract:
Pyrethroid type insecticides are described having the formula: ##STR1## 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.
Abstract:
Cyclopropanecarboxylic acids and esters are disclosed, having the formula: ##STR1## wherein A=CF.sub.3 --C.tbd.C--; ##STR2## X=H, F, Cl, Br; Y=Cl, Br; R=H, alkyl C.sub.1 -C.sub.4Compounds of formula I are intermediates for the preparation of insecticide compounds of the pyrethroid type.
Abstract translation:公开了环丙烷羧酸和酯,具有下式:其中A = CF 3 -C 3 CON C; X = H,F,Cl,Br; Y = Cl,Br; R = H,烷基C1-C4式I化合物是制备拟除虫菊酯类杀虫剂化合物的中间体。
Abstract:
The present invention concerns N-polychloroallylamidothiophosphoric esters. More particularly, this invention relates to new N-polychloroallylamido-thiophosphoric esters, the method for the preparation of same and their application in the fight against noxious insects.