Montedison S.p.a.

Istituto Guido Donegani S.p.a.

Istituto Guido Donegani

Pietro Massardo

Paolo Piccardi

Franco Bettarini

Angelo Longoni

Vincenzo Caprioli

Franca Reggiori

Franco Rama

Paolo Castoro

Gabriele Giovarruscio

Luigi Capuzzi

Giovanni Meazza

Giorgio Cassani

Mario Modena

Lucio Castelnuovo

Ennio Bianchini

Paulo Piccardi

A class of particularly active insecticidal compounds: N-(halobenzoyl)-N'-2-halo-4-[1,1,2-trifluoro-2-(trifluoromethoxy)ethoxy]-p henyl-ureas, the preparation of such compounds and their use against infestations by insects.

N-(halobenzoyl)-N'-2-halo-4-[1,1,2-trifluoro-2-(trifluoro-met

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.

Benzoyl-ureas having insecticide activity

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 formulae

Process for preparing polyhalogenated carbinols

Derivatives of 2,2-dimethylcyclopropanecarboxylic acid endowed with insecticidal and acaricidal activity, and having the formula ##STR1## wherein: R is an alkyl, cycloalkyl, alkenyl or alkynyl radical having from 1 to 8 carbon atoms, optionally substituted with halogen atoms, or R is an aryl radical optionally substituted with halogen atoms, alkyl or alkoxyl radicals;

Derivatives of 2,2-dimethyl-cyclopropanecarboxylic acid

There are described 1-phenoxy(phenylthio)-4-aryl-alkynyloxy-benzene derivatives endowed with a juvenile hormonic activity towards insects and with an acaricide activity. The use of these compounds for controlling insects infestations in both the agrarian and civil field and the processes for preparing said compounds are described too.

1-phenoxy(phenylthio)-4-arylalkynyloxy-benzene derivatives endowed with

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;

Alkynyl containing benzoyl-ureas exerting an insecticidal activity

There are described compounds of formula: ##STR1## in which X (or X')=H, F, Cl and X' (or X)=F, Cl; ##STR2## with R.sup.2 =H, Cl, Br, F an optionally halogen-substituted alkyl C.sub.1 -C.sub.3 ;

Benzoyl-ureas exerting an insecticide activity

There is disclosed a method for fighting infestations of acari or noxious insects including ants, more particularly 'fire-ants', by treating the insect, its habitat, or its food with a hydroquinone diether having at least one acetylenic and halogen-substituted chain and selected from 1-[(5-chloro-pent-4-inyl)-oxy]-4-phenoxybenzene of formula ##STR1## and 1,4-di-(5-chloro-4-pentinyloxy)-benzene of formula ##STR2## The disclosure comprises a method for fighting ants using the diether of formula (I) either as such or as an active ingredient of suitable formulations or poisoned baits.

Method for combatting infestations of insects and acari, and

Acaricide mixtures obtained from the synergistic coupling of an acaricide belonging to the class of the hydroquinone diethers with metallic copper or copper compounds and the use of said mixtures in suitable compositions in the treatment of mite infestations on useful plants are disclosed.

Acaricide compositions

There is described a process for preparing the compound 1-decyloxy-4-[(7-oxa-4-octynyl)-oxy]-benzene consisting in condensing methyl-propargyl-ether with 1-bromo-3-chloro-propane and in reacting the resulting intermediate with 4-decyloxy-phenol in the presence of an alkaline hydroxide. The process can be carried out also without purifying the intermediate obtained from the first reaction.

Process for preparing the compound

A method for fighting infestations by ants is disclosed. It consists in using 1-[(5-chloro-pent-4-inyl)-oxy]-4-phenoxy-benzene either as such or as an active ingredient of compositions or poisoned baits. The present invention concerns a method for fighting infestations by ants and, more particularly, it relates to a fighting method that consists in using, for the purpose, the compound 1-[(5-chloro-pent-4-inyl)-oxy]-4-phenoxy-benzene either as such or in the form of suitable formulations.

Method for fighting infestations by ants

There are described hydroquinone-diethers endowed with a high acaricide activity, the processes for their preparation and their use as acaricides.

Acaricide compounds

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:

Hydroquinone ethers having juvenile hormone activity

A hydroquinone diether having two 5,5-dichloro-4-pentenyl side chains and possessing improved acaricidal and juvenile hormonal activity is disclosed.

Growing community of inventors

Milan, Italy

Pietro Massardo