Di- or tri-fluoromethanesulfonyl anilide derivatives, process for the preparation of them and herbicides containing them as the active ingredient

摘要

The present invention provides a novel compound which is effective for the removal of a wide variety of weeds including difficult-to-control weeds emerging in paddy field and which is safe to mammals; a process for production thereof; a herbicide containing the compound as an active ingredient; and novel raw material compounds used in said process. The present invention relates to a trifluoromethanesulfonyl anilide derivative represented by the following general formula: (wherein R<1> is an alkoxyalkyl group; and R<2> is a fluorine atom), or a salt thereof, both of said derivative and said salt having a herbicidal activity.