AR008843A1

AR008843A1 - SUBSTITUTED PIRIDINE HERBICIDE COMPOUNDS, HERBICIDE COMPOSITION, METHOD FOR FIGHTING UNWANTED PLANTS AND METHOD FOR SELECTIVELY FIGHTING UNWANTED CORN OR RICE PLANTS.

Info

Publication number: AR008843A1
Authority: AR
Original assignee: American Cyanamid Co
Priority date: 1997-09-18
Filing date: 1997-09-18
Publication date: 2000-02-23

Abstract

Los nuevos compuestos de piridina substituida de formula I en donde : A representa un grupo heteroaromático de 5 o 6 miembros opcionalmente sustituido,que tiene un anillo aromático que contiene 1 - 3 átomos de nitrogeno, un grupo fenilo onaftil o opcionalmente sustituido, o un grupo difluorobenzodioxolilo,dichos sustituyentes opcionales siendo seleccionados del grupo que consiste de halogeno, nitro, ciano, amino, hidroxilo, C1-4 alquilo, C1-4 alcoxi, C1-4haloalquilo, C1-4haloalquiltio, C1 -4 haloalcoxi, C2-4 haloalquenilo, y halosulfanilo teniendo hasta 5 átomos de halogeno; B representa un hidrocarburocíclico opcionalemente sustituido, un grupo alquilo, alquenilo o alquinilo, un grupo heteroaromático de 5o 6 miembros opcion alemente sustituido que tiene unanillo aromático que contiene 1 - 3 átomos fde nitrogeno, un grupo fenilo o naftilo opcionalmente sustituido, o un grupo difluorobenzodioxolilo, o sin n es1 o 2, un grupo tienilo opcionalmentesustituido, dichos su stituyebtes opcionales siendo seleccionados del grupo que consiste de halogeno, nitro,ciano, amino, hidroxilo, C1-4 alquilo, C1-4 alcoxi, C1-4 haloalquilo, C1-4 haloalquiltio, C1-4 haloalcoxi, C2-4 haloalquenilo yhalosulfanilo teniendo hasta 5 átomos de halogeno; n representa un entero desde 0 a 2; R representa un átomo de hidrogeno, un átomo de halogeno, un grupo alquilo, alquenilo,alquinilo, alcoxi, alcoxialquilo, dialcoxialquilo, alquiltio, amino, alquilamino, dialqu ilamino, o alcoxiamino, opcionalmente sustituido o un grupohidroxi, formamidino, o ciano; X1 y X2 independientemente representan un átomo de oxígeno o azufre; y las sales agronomamente aceptables de los mismos utilescomoherbicida, método para comba tir plantas no deseadas de maíz o arroz.Novel substituted pyridine compounds of formula I wherein: A represents an optionally substituted 5- or 6-membered heteroaromatic group, having an aromatic ring containing 1-3 nitrogen atoms, an onafthyl or optionally substituted phenyl group, or a group difluorobenzodioxolyl, said optional substituents being selected from the group consisting of halogen, nitro, cyano, amino, hydroxyl, C1-4 alkyl, C1-4 alkoxy, C1-4haloalkyl, C1-4haloalkylthio, C1-4 haloalkoxy, C2-4 haloalkenyl, and halosulfanyl having up to 5 halogen atoms; B represents an optionally substituted hydrocarboncyclic, an alkyl, alkenyl, or alkynyl group, an optionally substituted 5-6 membered heteroaromatic group having an aromatic ring containing 1-3 nitrogen atoms, an optionally substituted phenyl or naphthyl group, or a difluorobenzodioxolyl group , or without n is 1 or 2, an optionally substituted thienyl group, said optional substitutes being selected from the group consisting of halogen, nitro, cyano, amino, hydroxyl, C1-4 alkyl, C1-4 alkoxy, C1-4 haloalkyl, C1 -4 haloalkylthio, C1-4 haloalkoxy, C2-4 haloalkenyl and halosulfanyl having up to 5 halogen atoms; n represents an integer from 0 to 2; R represents a hydrogen atom, a halogen atom, an alkyl, alkenyl, alkynyl, alkoxy, alkoxyalkyl, dialkoxyalkyl, alkylthio, amino, alkylamino, dialkylamino, or alkoxyamino group, optionally substituted or a hydroxy, formamidino, or cyano group; X1 and X2 independently represent an oxygen or sulfur atom; and the agronomically acceptable salts of the same tools as a herbicide, a method of combating unwanted plants of corn or rice.