WHEREIN X denotes oxygen or sulphur, the integer n is the number 0 or 1, R'' and R'''' independently of each other represent an alkyl radical with 3 to 5 carbon atoms and wherein A. IF X is oxygen, R represents an alkoxyalkylene, alkylmercaptoalkylene or alkenyloxyalkylene radical with at most 7 carbon atoms, an alkenyl radical with 3 to 6 carbon atoms or an unsubstituted benzyl group or a benzyl group which is substituted by halogen, methyl and/or methoxy, or wherein B. IF X is sulphur, R represents an alkenyl radical with 3 to 6 carbon atoms or an unsubstituted benzyl group or a benzyl group substituted by halogen, methyl and/or methoxy; these compounds are useful for defoliating and promoting the ripening of crop plants especially cotton.
wherein X denotes oxygen or sulphur, the integer n is the number 0 or 1, R'' and R'''' independently of each other represent an alkyl radical with 3 to 5 carbon atoms and wherein A. IF X is oxygen, R represents an alkoxyalkylene, alkylmercaptoalkylene or alkenyloxyalkylene radical with at most 7 carbon atoms, and alkenyl radical with 3 to 6 carbon atoms or an unsubstituted benzyl group or a benzyl group which is substituted by halogen, methyl and/or methoxy, or wherein B. IF X is sulphur, R represents an alkenyl radical with 3 to 6 carbon atoms or an unsubstituted benzyl group or a benzyl group substituted by halogen, methyl and/or methoxy; these compounds are useful for defoliating and promoting the ripening of crop plants especially cotton.
Abstract:
S,S-bis-benzyl-alkylphosphonates and S,S-bis-benzylalkylthiophosphonates, each of them optionally unsubstituted or substituted in the aromatic nucleus of the benzyl group, are effective fungicidal agents, preferably for combatting plantpathogenic fungi. They may be used in fungicidal preparations.
Abstract:
The present invention describes new phosphonic acid dithiol esters, a method for their preparation, compositions containing them and a method for regulating the abscission of fruits by applying these new esters or compositions containing them to fruit trees, olive, nut trees, berry bushes and grapes. The new phosphonic acid esters correspond to the formula
WHEREIN R'' is hydrogen, chlorine, -CF3, -CN, methyl, ethyl, methoxy or ethoxy, R'''' is hydrogen, chlorine, methyl or methoxy.
Abstract:
There are described 2-mercapto-5-thiazol(2-, 4- or 5-yl)-1,3,4-oxa- and -thiadiazoles and 2-mercapto-5-oxazol(2-, 4- or 5-yl)-1,3,4-oxa- and -thiadiazoles of the formula I in which X1 and X2 independently of one another represent oxygen or sulphur, R1 represents C1-C5-alkyl which is unsubstituted or substituted by halogen, C1-C3-alkoxy or cyano; C3-C7-alkenyl which is unsubstituted or substituted by halogen; C3-C7-alkynyl which is unsubstituted or substituted by halogen, R2 and R3 independently of one another represent hydrogen, C1-C5-alkyl, C3-C7-alkenyl which is unsubstituted or substituted by halogen; phenyl which is unsubstituted or substituted by identical or different substituents from the series comprising C1-C3-alkyl, C1-C3-alkoxy or halogen, the radical -NR4R5, where R4 and R5 independently of one another represent hydrogen, C1-C5-alkyl or C3-C7-alkenyl which is unsubstituted or substituted by halogen, or one of the two substituents R2 and R3 also represents an unsubstituted or substituted heterocycle pyridyl, thienyl, furyl or thiazolyl, and processes for the preparation of the compounds of the formula I and novel intermediates of the preparation process. The compounds of the formula I have nematicidal and fungicidal properties. There are described nematicides and fungicides which contain, as active substance, at least one active substance of the formula I, and furthermore methods for using the active substances and the agents in the control of nematodes and fungi.
Abstract:
PROCEDIMIENTO PARA LA FABRICACIXON DE NUEVOS DERIVADOS DE ALQUILMERCAPTOFENIL-1,3,4-OXADIAZOL, DE FORMULAS CARACTERIZADO POR LA REACCION DE CONDENSACION DE UN COMPUESTO DE FORMULA IIA CON UN COMPUESTO DE FORMULA IIIA. EN UN MEDIO DISOLVENTE INERTE, A ELEVADA TEMEPERATURA. APLICABLES A LA LUCHA CONTRA NEMATODOS PARASITOS DE LAS PLANTAS.
Abstract:
Compounds of the formula wherein R1 is Methyl or ethyl, R2 is C1-C4-alkyl or allyl, R4 is halogen, methyl or trifluoromethyl and R5 is hydrogen, halogen, methyl or trifluoromethyl and their tautomers exhibit valuable insecticidal properties.
Abstract:
METHOD OF CONTROLLING INSECTS of the Dislosure The invention provides a method for controlling insect pests at a locus which comprises applying to said locus a compound of the formula I (I) wherein R1 and R2 both represent a methyl group or together represent a tetramethylene or pentamethylene group and R3 represents a phenyl, 3-chlorophenyl, 4-chlorophenyl, 3,4dichlorophenyl or 4-fluorophenyl group.