Novel process for producting imidazo[1,2-b]pyridazine derivative
申请人:Tabuchi Takanori
公开号:US20050171108A1
公开(公告)日:2005-08-04
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):
(wherein R represents lower alkyl, lower cycloalkyl optionally substituted by lower alkyl, lower alkenyl, or lower alkynyl), the process comprising reacting an imidazo[1,2-b]pyridazine compound represented by the formula (I):
(wherein X represents halogeno or lower alkyl optionally substituted by halogeno; Y represents hydrogen or SO
2
N═CH—NR
1
R
2
; and Z represents halogeno or OSO
2
R
3
) with an organometallic compound in the presence of a transition metal catalyst. The derivative is useful as an intermediate for herbicides.
Fused heterocyclic sulfonylurea compound herbicide containing the same and method of controlling weed with the same
申请人:Tanaka Yasushi
公开号:US20050032650A1
公开(公告)日:2005-02-10
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.
Fused heterocyclic sulfonylurea compound, herbicide containing the same, and method for controlling weed with the same
申请人:Tanaka Yasushi
公开号:US20100160163A1
公开(公告)日:2010-06-24
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.
NOVEL PROCESS FOR PRODUCING IMIDAZO(1,2-B)PYRIDAZINE DERIVATIVE
申请人:Sumitomo Chemical Takeda Agro Company, Limited
公开号:EP1541575A1
公开(公告)日:2005-06-15
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):
(wherein R represents lower alkyl, lower cycloalkyl optionally substituted by lower alkyl, lower alkenyl, or lower alkynyl), the process comprising reacting an imidazo[1,2-b]pyridazine compound represented by the formula (I):
(wherein X represents halogeno or lower alkyl optionally substituted by halogeno; Y represents hydrogen or SO2N=CH-NR1R2; and Z represents halogeno or OSO2R3) with an organometallic compound in the presence of a transition metal catalyst. The derivative is useful as an intermediate for herbicides.
一种简便廉价地生产咪唑并[1,2-b]哒嗪-3-基磺酰胺衍生物的工艺,该衍生物具有键合在 6 位碳原子上的取代基,由式(II)表示:
(其中 R 代表低级烷基、任选被低级烷基、低级烯基或低级炔基取代的低级环烷基),该过程包括使由式(I)代表的咪唑并[1,2-b]哒嗪化合物反应:
(其中 X 代表卤素或任选被卤素取代的低级烷基;Y 代表氢或 SO2N=CH-NR1R2;Z 代表卤素或 OSO2R3)与有机金属化合物在过渡金属催化剂存在下反应。该衍生物可用作除草剂的中间体。