The present application relates to a kind of
benzene ring alkoxy substitution
sulfonylurea compound and its purposes in preparation herbicide.The compound of the present application has good prevention and removal effect on barnyard grass, elephant's ear grass, green bristlegrass, Japanese green bristlegrass, crabgrass, rape and amaranthus in 1 g / m2 dosage,
soil treatment or stem-leaf treatment, and has good
crop safety to wheat and rice in 2 g / m2 dosage, stem-leaf treatment or
soil treatment.The compound can be used as selective herbicide in wheat field and rice field, and can also be used as herbicide in non-
crop field such as forest or wasteland.The chemical
structural formula of the
benzene ring alkoxy substitution
sulfonylurea compound is as follows: