IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0205213
(1994-03-02)
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발명자
/ 주소 |
- Tsang Tsze H. (El Cerrito CA)
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출원인 / 주소 |
- Zeneca Limited (London GB2 03)
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인용정보 |
피인용 횟수 :
4 인용 특허 :
0 |
초록
▼
Herbicidal compounds have the formula [Figure] in which R1 is hydrogen, methyl, ethyl, phenyl, 2-methylphenyl, 3-trifluoromethylphenyl, benzyl, 2-methylbenzyl or vinyl; R2 is hydrogen, methyl, ethyl or chloro; R3 is C1-C4 alkyl, C1-C4 alkoxy, C1-C4 haloalkyl, nitro, p-tolyloxy or p-chlorophenoxy; R4
Herbicidal compounds have the formula [Figure] in which R1 is hydrogen, methyl, ethyl, phenyl, 2-methylphenyl, 3-trifluoromethylphenyl, benzyl, 2-methylbenzyl or vinyl; R2 is hydrogen, methyl, ethyl or chloro; R3 is C1-C4 alkyl, C1-C4 alkoxy, C1-C4 haloalkyl, nitro, p-tolyloxy or p-chlorophenoxy; R4 is hydrogen or a methyl, methoxy, trifluoromethoxy or halo group at the 2, 4- or 5-position; m is -CH or N; and X is O or NOR5 in which R5 is methyl or ethyl; provided that: (a) when R1 is methyl, and (i) R3 is methyl, then R4 is 4-methyl, 4-methoxy or chloro; (ii) R3 is nitro, then R4 is methoxy; (b) when R1 is ethyl, R3 is methyl or methoxy; (c) when R2 is chloro, R3 and R4 are independently C1-C4 haloalkyl, C1-C4 haloalkoxy or C1-C4 alkoxy; (d) when R2 is methyl or ethyl, R1 is hydrogen; (e) when R3 is hydrogen, R4 is 2-methyl, halo or methoxy; (f) if M is N, R3 is C1-C4 alkoxy, C1-C4 haloalkyl or C1-C4 haloalkoxy and R1 is not ethyl; and (g) if R1 is vinyl, M is N.
대표청구항
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A method of controlling undesirable vegetation comprising applying to said vegetation or the locus thereof a herbicidally effective amount of a compound having the formula [Figure] in which R1 is hydrogen, methyl or ethyl; R2 is hydrogen, methyl or ethyl; R3 is C1-C4 alkyl, C1-C4 alkoxy, C1-C4 haloa
A method of controlling undesirable vegetation comprising applying to said vegetation or the locus thereof a herbicidally effective amount of a compound having the formula [Figure] in which R1 is hydrogen, methyl or ethyl; R2 is hydrogen, methyl or ethyl; R3 is C1-C4 alkyl, C1-C4 alkoxy, C1-C4 haloalkyl or nitro; R4 is hydrogen or a methyl, methoxy, or trifiuoromethoxy group at the 2- 4- or 5-position; provided that: (a) when R1 is methyl, and (i) R3 is methyl, then R4 is 4-methyl or 4-methoxy; (ii) R3 is nitro, then R4 is methoxy; (b) when R1 is ethyl, R3 is methyl or methoxy; (c) when R2 is methyl or ethyl, R1 is hydrogen; (d) if R1, R2 and R4 are hydrogen, then R3 is not methoxy; and (e) if R1 is methyl, R2 and R4 are hydrogen, then R3 is not CF3.
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