Protoporphyrinogen oxidase inhibitors
AssigneeEnko Chem, Inc.
InventorsNeville John ANTHONY, Paul GALATSIS, David Jeffrey LAUFFER, Peter STCHUR, III
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Abstract
The present invention relates to protoporphyrinogen oxidase inhibitors of the general formula (I) where the variables are defined herein. The invention features processes and intermediates for preparing the benzoxazinones of formula (I), compositions comprising them, and their use as herbicides—i.e. for controlling harmful plants. The invention also features methods for controlling unwanted vegetation comprising allowing an herbicidal effective amount of at least one benzoxazinone of formula (I) to act on plants, their seed, and/or their habitat.
Claims26
A compound of formula I:
- or a salt thereof, wherein:
- R1 is H or C1-4alkyl optionally substituted with R1a, phenyl, or benzyl, wherein each of said alkyl, phenyl or benzyl is optionally substituted with up to 3 F atoms, an OH group, or an OC1-4alkyl group;
- R1a is
- each R1b is, independently, H, C1-4alkyl, or cyclopropyl;
- each of R2 and R3 is, independently, H, Cl, F, CH3, or R2 and R3 together with the intervening carbon is cyclopropyl;
- R4 is H, Cl, or F;
- R5 is H or F;
- each of R6 and R7 is, independently, F, H, C1-2alkyl optionally substituted with OH, alkenyl, OH, OC1-2alkyl, O-cyclopropyl, OCH2CCH, NHCH2Ph, N(Rx)2, or SCH3;
- R8 is H or F;
- each Rx is, independently, H, CH3, or C(O)CH3;
- and
- wherein Ring A contains at least 4 F atom substituents.
A compound selected from the compounds listed in Table 1, or a salt thereof.
(canceled)
(canceled)
A compound of formula (c), (di) (e), (g), (h) or (v):
- or a salt thereof, wherein:
- R is H1 or phenyl;
- X is Br or 1;
- and
- each of R2 and R3 is, independently, W, Cl, F, CH3, or R2 and R3 together with die intervening carbon is cyclopropyl;
- R4 is H, Cl, or F;
- R5 is H or F;
- each of R6 and R7 is, independently, F, H, C1-2alkyl optionally substituted with OH, alkenyl, OH, OC1-2alkyl, O-cyclopropyl, OCH2CCH, NHCH2Ph, N(Rx)2, or SCH3;
- R8 is H or F;
- each Rx is, independently, H, CH3, or C(O)CH3;
- and
- wherein Ring A contains at least 4 F atom substituents.
Dependencies are inferred from the claim text.