Sumitomo Chemical Company, Limited

Sumitomo Chemical Takeda Agro Company, Limited

Takeshi Kajiwara

Takanori Tabuchi

Yukari Kajiwara

Yasushi Tanaka

Makoto Noguchi

Tetsuhiro Yamamoto

The present invention provides a compound represented by the formula: wherein Q represents a fused heterocyclic group, X and Y are the same or different and each represent an optionally halogenated lower alkyl group, an optionally halogenated lower alkoxy group, etc., or a salt thereof, as well as a herbicide comprising the compound or a salt thereof, which exhibits a significant effect for control of sulfonylurea herbicide-resistant weeds in paddy fields and can reduce the number of active ingredients in a combined preparation and a method of controlling sulfonylurea herbicide-resistant weeds which comprises using the same.

Condensed heterocyclic sulfonyl urea compound, a herbicide containing the same, and a method for weed control using the same

A process for easily and inexpensively producing an imidazo[1,2-b]pyridazin-3-ylsulfonamide derivative which has a substituent bonded to the 6-position carbon atom and is represented by the formula (II):  

Process for producting imidazo[1,2-b]pyridazine derivative

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Niihari-gun, Japan

Takeshi Kajiwara