| abstract |
(57) [Summary] (Correction) [Constitution] General formula [I] (In the formula, R 1 is an optionally substituted phenyl, an optionally substituted pyridine, an optionally substituted aralkyl, R 2 and R 3 are each independently hydrogen, halogen or C1. ~ 4 alkyl, C1-4 alkoxy C1-4 alkyl, C1-4 alkoxy, C1-4 alkylthio, C1-4 Alkylsulfinyl, C1-4 alkylsulfonyl, C1-4 alkoxycarbonyl, carboxyl, n is 0 or 1, or R 2 and R 3 may together represent a C2-4 alkylene chain. R 4 is hydrogen, C1-4 Alkyl and A represent a C1-4 optionally substituted alkylene chain. ) A substituted fused piperidinedione derivative represented by the formula (1) or a salt thereof, an intermediate, and a herbicide. [Effect] The above compound provides a highly effective herbicide. |