2-benzoyl pyrrole and benzoyl imidazole herbicides
Patent 5512537 Issued on April 30, 1996. Estimated Expiration Date: 
March 2, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 2, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3644631 Pyrrolyl oxyphenyl ketones Preparation of ଲ-acyl pyrroles Fungicides Heterocyclic compounds as fungicides Patent #: 5091407 InventorAssigneeApplicationNo. 205213 filed on 03/02/1994US Classes:504/287, Having -C(=X)-, wherein X is chalcogen, bonded directly to the five-membered hetero ring501/123Alkaline earth metal compound containingExaminersPrimary: Robinson, Allen J.Assistant: Bembenick, Brian G. Attorney, Agent or FirmForeign Patent References
International ClassA01N 043/36AbstractHerbicidal compounds have the formula ##STR1## 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; andX 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.Other References
Field of SearchHaving -C(=X)-, wherein X is chalcogen, bonded directly to the five membered hetero ring (e.g., pyrrole carbonyl halides, pyrrole carboxaldehyde, etc.)Carbocyclic ring bonded directly to the -C(=X)- (e.g., 3-benzoyl pyrrolidine, etc.) Chalcogen attached indirectly to the five-membered hetero ring by acyclic nonionic bonding Having -C(=X)-, wherein X is chalcogen, bonded directly to the five-membered hetero ring | |
