| abstract |
3-Hydroxy-4-aryl-5-oxopyrazoline derivatives active as herbicides. The invention relates to novel 3-hydroxy-4-aryl-5-oxopyrazoline derivatives active as herbicides, to processes for their preparation, to compositions comprising these compounds and may additionally comprise safety agents, and to the use of these compounds as herbicides to control weeds and herbs, particularly in useful plant crops. The 3-hydroxy-4-aryl-5-oxopyrazoline derivatives that have herbicidal activity. We have now discovered new 3-hydroxy-4-aryl-5-oxopyrazoline derivatives that have herbicidal properties. Thus, the present invention provides compounds of the formula I |