1-Phenyl-3-carboxyamidopyrrolidones and their use as herbicides
Patent 4874422 Issued on October 17, 1989. Estimated Expiration Date: 
December 27, 2008. 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.
December 27, 2008. 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 References1-(Bis-trifluoromethylphenyl)-2-oxo-pyrrolidine-4-carboxylic acid derivatives, their production and their use as plant-growth regulators and herbicides Aromatic N-substituted halo-substituted-2-pyrrolidinones and their utility as herbicides Method of preparation for aromatic N-substituted halo-substituted 2-pyrrolidinones Synergistic herbicidal compositions Process for the preparation of N-arylhalopyrrolid-2-ones Patent #: 4645843 InventorAssigneeApplicationNo. 290139 filed on 12/27/1988US Classes:504/287, Having -C(=X)-, wherein X is chalcogen, bonded directly to the five-membered hetero ring504/166, Hetero ring containing active ingredient504/167, Hetero ring is six-membered including nitrogen504/177, Hetero ring is six-membered including nitrogen504/179, Hetero ring is five-membered including nitrogen504/219, Additional hetero ring containing504/225, Additional hetero ring containing504/249, Having -C(=X)-, wherein X is chalcogen, bonded directly to ring nitrogen of the piperidine ring544/141, Five-membered hetero ring consisting of one nitrogen and four carbons546/208, Ring nitrogen in the additional hetero ring548/518, The additional hetero ring also contains nitrogen548/550Nitrogen attached directly or indirectly to the five-membered hetero ring by acyclic nonionic bondingExaminersPrimary: Lee, Mary C.Assistant: Russell, John A. H. Attorney, Agent or FirmInternational ClassesA01N 043/36A01N 043/40 C07D 295/10 C07D 213/50 Abstract1-Phenyl-3-carboxyamidopyrrolidones of the formula ##STR1## in which R1 is H, alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy, phenyl, halophenyl, benzyl, halobenzyl, or alkyl substituted with alkoxy, alkyltyhio, phenyl, hydroxy or cyano; and R2 is H or alkyl; or R1 and R2 are combined as alkylene or alkyleneoxyalkylene; R3 is alkyl or alkenyl; R4 is H, halogen, CH3, CF3, CF2 CHF2, OCF2 CHF2, OCHF2, OCF3, SCH3, S(O)CH3, SO2 CH3, methoxyiminomethyl, methoxyimino-1-ethyl, benzyloxyiminomethyl, or benzyloxyimino-1-ethyl;n is zero or 1; X is H or halogen; Y is O or S; and Z is O or S, are useful as herbicidal agents. |
| ||||||||||||||
