The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 1991
Filed:
May. 15, 1990
Tetsuo Jikihara, Komae, JP;
Toyohiko Shike, Yokohama, JP;
Manabu Katsurada, Machida, JP;
Hisao Watanabe, Yokohama, JP;
Osamu Ikeda, Machida, JP;
Mitsubishi Kasei Corporation, Tokyo, JP;
Abstract
The present invention provides indan-1,3-dione derivatives, including derivatives represented by the following formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group; R.sup.2 represents a group represented by ##STR2## 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 compound of the formula (I) shows high herbicidal activity against gramineous weeds, cyperaceous weeds, etc. but shows markedly low phytotoxicity against crops.