Indan - 1,3 Dione derivative, herbicide composition, a method for controlling the growth indesejavel weeds and process to produce a derivative of indan - 1,3 Dione

摘要

The present invention provides an indan-1,3-dione derivative represented by the following formula (I): CHEM wherein R1 represents a hydrogen atom or a lower alkyl group; R2 represents a group represented by CHEM wherein E represents a (substituted) phenyl group or a (substituted) pyridyl group; Y represents a hydroxyl group; and Z represents a halogen atom, a (substituted) alkylsulfonyloxy group or a (substituted) phenylsulfonyloxy group, or Y and Z are bonded to represent -O-; and A represents a (substituted) 1,3-butadienylene group or a (substituted) 1,3-azabutadienylene group, and a herbicidal composition containing the same as an active ingredient. The present invention further provides an indan-1,3-dione derivative represented by the following formula (II): CHEM wherein R1 and A represent the same meanings as above and R3 represents a group represented by CHEM wherein E represents the same meanings as above; and W1 and W2 each represents hydroxyl group or form a carbon-carbon bond by combining with each other, which is available as a synthetic intermediate for the compound of the formula (I). The compound of the formula (I) shows high herbicidal activity against gramineous weeds, cyperaceous weeds, etc. but shows markedly low phytotoxicity against crops.