PROCESS FOR MANUFACTURING 4-PROPARGYLATED AMINO-BENZOXAZINONES

摘要

The present invention relates to a process for manufacturing 4-propargylated amino- benzoxazinones of formula (I), comprising the following steps: step a) preparing propargyl chloride by reacting propargyl alcohol with thionyl chloride optionally in the presence of a catalyst; and step b) reacting the propargyl chloride prepared in step (a) with a NH-benzoxazinone of formula (II); wherein the variables are defined according to the description.