N - azinil - n '- (2 - etilsulfinil - fenilsulfoni (I) - urea, process for their preparation, agents, herbicides, the process to combat weeds, application of the mentioned urea.Process for the preparation of agents, herbicides and sodico salt of N - (4,6 - dimetoxi - pirimidin - 2 - YL) - n '- (2 - etilsulfinil - fenilsulfoni) - urea

摘要

Herbicidal N-azinyl-N'-(2-ethylsulphinyl-phenylsulphonyl)ureas of the formula ##STR1## in which A represents nitrogen or a CH group, P PX represents hydrogen, halogen or alkyl, alkoxy or alkylthio, each of which has 1 to 3 carbon atoms and each of which is optionally substituted by halogen andPPY represents alkyl or alkoxy, each of which has 1 to 3 carbon atoms and each of which is optionally substituted by halogen,PPand salts thereof.