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3-[5- Or 3-substituted-1,2,4-oxadiazol-3- or -5-yl]-1-substituted-4-substituted-5-substituted or unsubstituted-2-imidazolidinones

Assignee: Wyeth Holdings LLC
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Filing: 1982-02-12
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Granted: 1984-01-17
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Expires: 2002-02-12
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Abstract

Abstract This invention concerns certain 3-[5- or 3-substituted-1,2,4-oxadiazol-3- or -5-yl]-1-substituted-4-substituted-5-substituted or unsubstituted-2-imidazolidinones having herbicidal activity and the use thereof to control weed growth.

Inventors

  • 👤 Jerome M. Lavanish
  • 👤 Barry Van Gemert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 08:00
CPC Classifications
C; C07; C07D; C07D271/00; C07D271/02; C07D271/06; C07D271/07; A; A01; A01N; A01N43/00; A01N43/72; A01N43/82; C07D413/00; C07D413/02; C07D413/04

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 206 words
A compound represented by the formula: ##STR14## R is alkyl or haloalkyl of up to 6 carbon atoms, cycloalkyl of from 3 to 8 carbon atoms, alkenyl or alkynyl of up to 5 carbon atoms, --R 4 --O--R 5 or R 4 --S--R 5 wherein R 4 is alkylene of up to 6 carbon atoms and R 5 is alkyl of up to 6 carbon atoms, ##STR15## wherein Z is nitro, halogen, trifluoromethyl or R 5 and n is 0, 1, 2, or 3; R 1 is hydroxy, halogen, ##STR16## wherein R 6 is alkyl or haloalkyl of up to 6 carbon atoms, cycloalkyl of from 3 to 8 carbon atoms, alkenyl or alkynyl of up to 5 carbon atoms or ##STR17## wherein Z 1 is nitro, halogen, trifluoromethyl, alkyl or alkoxy of up to 8 carbon atoms, and n is 0, 1, 2 or 3 or ##STR18## wherein R 7 and R 8 are the same or different and represent hydrogen, alkyl or haloalkyl of up to 6 carbon atoms; or R 7 can be ##STR19## R 2 is hydrogen, hydroxy, alkyl, or haloalkyl of up to 4 carbon atoms or allyl; and R 3 is alkyl of up to 3 carbon atoms or allyl.
Claim 2
Dependent Claim 206 words
A compound represented by the formula: ##STR14## R is alkyl or haloalkyl of up to 6 carbon atoms, cycloalkyl of from 3 to 8 carbon atoms, alkenyl or alkynyl of up to 5 carbon atoms, --R 4 --O--R 5 or R 4 --S--R 5 wherein R 4 is alkylene of up to 6 carbon atoms and R 5 is alkyl of up to 6 carbon atoms, ##STR15## wherein Z is nitro, halogen, trifluoromethyl or R 5 and n is 0, 1, 2, or 3; R 1 is hydroxy, halogen, ##STR16## wherein R 6 is alkyl or haloalkyl of up to 6 carbon atoms, cycloalkyl of from 3 to 8 carbon atoms, alkenyl or alkynyl of up to 5 carbon atoms or ##STR17## wherein Z 1 is nitro, halogen, trifluoromethyl, alkyl or alkoxy of up to 8 carbon atoms, and n is 0, 1, 2 or 3 or ##STR18## wherein R 7 and R 8 are the same or different and represent hydrogen, alkyl or haloalkyl of up to 6 carbon atoms; or R 7 can be ##STR19## R 2 is hydrogen, hydroxy, alkyl, or haloalkyl of up to 4 carbon atoms or allyl; and R 3 is alkyl of up to 3 carbon atoms or allyl.
Claim 3
Dependent Claim 23 words
The compound of claim 1 wherein R and R 3 are alkyl, R 1 is hydroxy and R 2 is hydrogen or hydroxy.
Claim 4
Dependent Claim 8 words
A compound of claim 2 which is 3-[5-(1,1-dimethylethyl)-1,2,4-oxadiazol-3-yl]-1-methyl-4-hydroxy-2-imidazolidinone.

References Cited (Backward Citations)

US4023957A Cited
US4028375A Cited
US4021439A Cited
US4061648A Cited
US4063924A Cited
US4097486A Cited
US4243409A Cited
US4268679A Cited
US4302239A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-01-16 1987-07-18 1988-01-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-01-16 1991-07-18 1992-01-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-01-16 1995-07-18 1996-01-17 $7700.00 Window Closed / Lapsed

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