Thieno (3.2 (b) Piran - 5.7 - dionas replaced, process for their preparation, compositions endoparasiticidas, processes to combat weeds and for the preparation of compositions.Use of 2 - acetyl - 3 - ceton - 4.5 - dihidrotiofeno s.

摘要

novel substituted thieno [3.2 - b] general formula (i) pyranonemethods for their manufacture and their use as herbicides and plant wachstumsregulatoren and novel intermediates of formula (vi)(what ru00b9, ru00b2, x, y and z, respectively, in the description of the specified meanings).