Derived from 1,3 - oxazin - 4 - ona, herbicide composition, a method for controlling weeds in site and process for the preparation of a derivative of 1,3 - oxazin - 4 - ona

摘要

"Derived from 1,3 - oxazin - 4 - ona, herbicide composition, a method for controlling weeds in a site and process for the preparation of a derivative of 1.3 - oxazin - 4 - one "the present invention refers to new derivatives of 1,3 - oxazin - 4 - one of structural formula (I), in which ru00b9, R u00b2, ru00b3, R ^ 4 ^.R ^ 5 ^ and Q have the meanings defined in the specification report, and their use as herbicides.