Arylsulfonylureas, processes for their preparation, and their use as herbicides and growth regulators

摘要

PCT No. PCT/EP92/00304 Sec. 371 Date Sep. 21, 1993 Sec. 102(e) Date Sep. 21, 1993 PCT Filed Feb. 12, 1992 PCT Pub. No. WO92/13845 PCT Pub. Date Aug. 20, 1992.The invention relates to novel intermediates for the preparation of a certain group of novel phenylsulfonylurea herbicides, which herbicides are particularly advantageous for use in crop protection. The novel intermediate compounds are of the formula II <IMAGE> (II) and of the formula VI, <IMAGE> (VI) as defined in the specification and claims. The intermediate compounds may be used to prepare herbicidal and plant growth regulating compounds of the formula I or salts thereof: he herbicides so obtained are particularly suitable for selectively controlling weeds.