Patent US2841774A successfully refreshed from Google Patents.
Patent EP0238070A2 successfully refreshed from Google Patents.
EP0238070A2
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EP
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Sulfonylurea compounds, their production and herbicidal use
Assignee: Takeda Pharmaceutical Co Ltd
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Filing: 1987-03-18
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Granted: —
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Expires: 2007-03-18
Abstract
Abstract A compound of the general formula:wherein Q is a condensed heterocyclic group having N atom in the bridgehead which may substituted, W is 0 or S, R<sub>1</sub> and R<sub>2</sub> each are an alkyl group, an alkoxy group or halogen and z is CH or N, and a salt thereof, which is useful as herbicide.
Inventors
- 👤 Ishida Yasuo
- 👤 Ohta Kazunari
- 👤 Nakahama Tatsuo
- 👤 Yoshikawa Harutoshi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 23:31
CPC Classifications
C; C07; C07D; C07D487/00; C07D487/02; C07D487/04; C07D521/00; A; A01; A01N; A01N47/00; A01N47/08; A01N47/28; A01N47/36
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
54 words
A compound of the general formula: , wherein Q is a condensed heterocyclic group having N atom in the bridgehead which may be substituted, W is O or S, R1 and R 2 each are an alkyl group, an alkoxy group or a halogen and Z is CH or N, or a salt thereof.
Claim 2
Dependent Claim
54 words
A compound of the general formula: , wherein Q is a condensed heterocyclic group having N atom in the bridgehead which may be substituted, W is O or S, R1 and R 2 each are an alkyl group, an alkoxy group or a halogen and Z is CH or N, or a salt thereof.
Claim 3
Dependent Claim
77 words
A compound of claim 1 in which the condensed heterocyclic group having N atom in the bridgehead is a group of the general, formula: , wherein the ring ⓐ is a 5 membered heterocycle having one to three nitrogen atoms, the ring ⓑ is a 6 membered heterocycle having one or two nitrogen atoms or a 5 membered heterocycle having one or two nitrogen atoms and one sulfur atom (which may be in mono- or di-oxidized form).
Claim 4
Dependent Claim
49 words
A compound of claim 1 in which Q is a condensed heter - cyclic group having N atom in the bridgehead which may be substituted by the same or different one to three substituents of hydroxy, amino, cyano, sulfamoyl, sulfamoyloxy, mercapto, nitro, a halogen, an organic residue or sulfo.
Claim 5
Dependent Claim
53 words
A compound of claim 1 in which Q is a group of the general formula: , wherein A is a group to form a condensed ring at the [1,2] position of the imidazole ring, and B 1 is hydrogen, hydroxy, amino, cyano, sulfamoyl, sulfamoyloxy, mercapto, nitro, a halogen, an organic residue or sulfo.
Claim 6
Dependent Claim
106 words
A compound of claim 4 in which the group A is a group which may contain one or four of carbon atoms and further one to three of nitrogen, oxygen or sulfur atom as the ring-constituting atoms; the carbon and nitrogen atoms being optionally substituted by the same or different one to three substituents of hydroxy, amino, cyano, sulfamoyl, sulfamoyloxy, mercapto, nitro, a halogen, an organic residue or sulfo; the carbon and nitrogen atoms or the carbon and carbon atoms adjacent to each other being optionally formed to another 5 or 6 membered condensed ring; and the sulfur atom being optionally in mono- or di-oxidized form.
Claim 7
Dependent Claim
52 words
A compound of claim 1 in which the condensed hetero-- cycle in the condensed heterocyclic group having N atom in the bridgehead of Q is imidazo[1,2-a]pyridine imidazo[2,1-b]thiazole imidazo[1,2-a]pyrimidine imidazo[1,2-b]pyridazine imidazo[1,2-c]pyrimidine imidazo[1,2-a]imidazole imidazo[2,1-b](1,3,4)thiadiazole 2,3-dihydroimidazo[2,1-b]thiazole (or its mono- or di-oxide; n is 0, 1 or 2) pyrazolo[1,5-a]pyrimidine pyrazolo[5,1-b]thiazole pyrazolo[1,5-a]pyridine pyrrolo[1,2-a]pyridine imidazo[1,5-a]pyridine imidazo[1,2-b](1,2,4)triazole or (1,2,4)triazolo[3,4-b]thiazole
Claim 8
Dependent Claim
66 words
A compound of claim 1 in which Q is , wherein R 0 is hydrogen, a lower alkyl group which may be substituted by a halogen, a lower alkylthio group, a lower alkylsulfonyl group, a lower alkoxycarbonyl group or a halogen, and X 1 is hydrogen, a halogen, a lower alkoxy group, a lower alkylthio group, a lower alkylamino group or a di-(lower alkyl) amino group.
Claim 9
Dependent Claim
9 words
A compound of claim 1 which is N-(2-chloroimidazo[1,2-a] pyridin-3-ylsulfonyl)-N'-(4,6-dimethoxy-2-pyrimidinyl)urea.
Claim 10
Dependent Claim
9 words
A compound of claim 1 is N-(2-chloroimidazo[1,2-a] pyrimidin-3-ylsulfonyl)-N'-(4-methoxy-6-methyl-2-pyrimidinyl) urea.
Claim 11
Dependent Claim
9 words
A compound of claim 1 which is N-(2-bromoimidazo[1,2-a] pyridin-3-ylsulfonyl)-N'-(4,6-dimethoxy-2-pyrimidinyl)urea.
Claim 12
Dependent Claim
11 words
A compound of claim 1 in which is N-(6-chloroimidazo [2,1-b]thiazol-5-ylsulfonyl)-N'-(4,6-dimethoxy-2-pyrimidinyl) urea.
Claim 13
Dependent Claim
9 words
A compound of claim 1 which is N-(2-chloro-6-methoxy- imidazo[1,2-6]pyridazin-3-ylsulfonyl)-N'-(4,6-dimethoxy-2-pyrimidinyl)urea.
Claim 14
Dependent Claim
9 words
A compound of claim 1 which is N-(2-chloro-6-methylthio imidazo[1,2-b]pyridazin-3-ylsulfonyl)-N'-(4,6-dimethoxy-2-pyrimidinyl)urea.
Claim 15
Dependent Claim
147 words
A process for producing a compound of the general formula: , wherein Q is a condensed heterocyclic group having N atom in the bridgehead which may be substituted; W is O or S; R 1 and R 2 each are an alkyl group, an alkoxy group or a halogen and Z is CH or N, or a salt thereof; which comprises a) reacting a compound of the general formula: or a salt thereof, with a compound of the general formula: or a salt thereof, wherein either of X or Y is amino and the other is a group of the formula (W has the same meaning as defined above and R is a hydrocarbon residue or a group of the formula - N = C = W (W has the same meaning as defined above), and the other symbols have the same meanings as defined above; or
Claim 16
Dependent Claim
147 words
A process for producing a compound of the general formula: , wherein Q is a condensed heterocyclic group having N atom in the bridgehead which may be substituted; W is O or S; R 1 and R 2 each are an alkyl group, an alkoxy group or a halogen and Z is CH or N, or a salt thereof; which comprises a) reacting a compound of the general formula: or a salt thereof, with a compound of the general formula: or a salt thereof, wherein either of X or Y is amino and the other is a group of the formula (W has the same meaning as defined above and R is a hydrocarbon residue or a group of the formula - N = C = W (W has the same meaning as defined above), and the other symbols have the same meanings as defined above; or
Claim 17
Dependent Claim
46 words
b) reacting a compound of the general formula: , wherein Q has the same meaning as defined above, or a salt thereof, with a compound of the general formula: , wherein Hal is a halogen and the other symbols have the same meanings as defined above.
Claim 18
Dependent Claim
46 words
b) reacting a compound of the general formula: , wherein Q has the same meaning as defined above, or a salt thereof, with a compound of the general formula: , wherein Hal is a halogen and the other symbols have the same meanings as defined above.
Claim 19
Dependent Claim
62 words
A herbicidal composition comprising as the active ingredient a compound of the formula: , wherein Q is a condensed heterocyclic group having N atom in the bridgehead which may be substituted, W is 0 or S, R 1 and R 2 each are an alkyl group, an alkoxy group or a halogen and Z is CH or N, or a salt thereof.
Claim 20
Dependent Claim
62 words
A herbicidal composition comprising as the active ingredient a compound of the formula: , wherein Q is a condensed heterocyclic group having N atom in the bridgehead which may be substituted, W is 0 or S, R 1 and R 2 each are an alkyl group, an alkoxy group or a halogen and Z is CH or N, or a salt thereof.
Claim 21
Dependent Claim
25 words
A herbicidal composition of claim 15 in which the compound of the general formula (I) is N-(2-chloroimidazo[1,2-a]pyridin-3-ylsulfonyl)-N'-(4,6-dimethoxy-2-pyrimidinyl)urea, N-(2-chloroimidazo[1,2-a]pyrimidin-3-ylsulfonyl)-N'-(4-methoxy-6-methyl-2-pyrimidinyl)urea, N-(2-bromoimidazo[1,2-a]pyridin-3-ylsulfonyl)-N'-(4,6-dimethoxy-2-pyrimidinyl)urea, N-(6-chloroimidazo[2,1-b]thiazol-5-ylsulfonyl)-N'-(4,6-dimethoxy-2-pyrimidinyl)urea, N-(2-chloro-6-methoxyimidazo[1,2,-b] pyridazin-3-ylsulfonyl)-N'-(4,6-dimethoxy-2-pyrimidinyl) urea or N-(2-chloro-5-methylthioimidazo[1,2-b]pyridazin-3-ylsulfonyl)-N'-(4,6-dimethoxy-2-pyrimidinyl)urea.
Claim 22
Dependent Claim
14 words
A herbicidal composition of claim 15 or 16 which is adapted for paddy field.
References Cited (Backward Citations)
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