Claims
- 1. A compound of formula I ##STR350## wherein ring system A is selected from pyridyl which may be fused by its (b) or (c) side to benzene,
- and pyridyl-N-oxide;
- R is cyano, formyl, CX.sub.1 X.sub.2 X.sub.3, a carboxyl group which may be in the form of the free acid or in ester or salt form, a thiocarboxyl group which may be in the form of the free acid or in ester form, a carbamoyl group or a mono- or di- substituted carbamoyl group, hydroxyalkyl, hydroxybenzyl, --CH.dbd.NOH, --CH.dbd.NO--lower alkyl, the group --CH.sub.2 --O--C(O)-- which bridges adjacent carbon atoms in ring A,
- Y.sub.1, Y.sub.2 and Y.sub.3 are attached to carbon atoms and are independently hydrogen, halogen, hydroxy, alkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, alkylsulfonyloxy, dialkylsulfamoyloxy, alkylsulfonyl, alkylsulfinyl, dialkylcarbamoyloxy, alkylthio, alkenylthio or alkynylthio each of which may in turn be substituted by 1 to 6 halogen atoms; dialkoxymethyl, conjugated alkoxy, hydroxyalkyl, carboxyl, acyl, acylalkyl, acyloxy, acyloxyalkyl, trialkylsilyloxy, trialkylsilyl, cyano, nitro, amino or substituted amino, aminosulfonyl; cycloalkyl, aryl, aralkyl, aralkenyl, aralkenyl, aryloxy, aralkoxy, arylsulfonyl, arylsulfinyl, arylthio or aralkylthio, each of which may be substituted by one to three substituents selected from halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, nitro, cyano, alkylthio, acyl, amino or substituted amino; a group ##STR351## wherein R' is hydrogen, lower alkyl, or lower alkoxy; or Y.sub.1 and R taken together on adjacent carbon atoms form a bridge having the formula ##STR352## wherein E is a 1 to 3 membered linking group with elements selected from methylene, substituted methylene ##STR353## and oxygen; or Y.sub.1 and Y.sub.2 taken together on adjacent carbon atoms form a 3- to 5-membered bridge comprised of elements selected from methylene, substituted methylene, ##STR354## oxygen, and ##STR355## R.sub.1, R.sub.3 ' and R.sub.3 are independently hydrogen; halogen; alkyl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, alkylthio, alkenylthio or alkynylthio, each of which may in turn be substituted by 1 to 6 halogen atoms; cycloalkyl, heterocycloalkoxy, aryloxy, aralkoxy or aralkylthio each of which may be substituted by 1 to 3 substituents selected from halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, nitro, cyano, alkylthio, acyl, amino or substituted amino; aminoxy; substituted aminoxy; iminoxy; substituted iminoxy; amino; substituted amino; amido; substituted amido; alkylsulfonylmethyl; cyano; nitro; or ##STR356## wherein Y.sub.4 is hydrogen, lower alkyl, lower alkoxy, hydroxy or unsubstituted or substituted phenyl;
- R.sub.4 is as defined for Y.sub.1 except for hydrogen;
- X and Y each is independently hydrogen, hydroxy, halogen, cyano, alkyl, alkoxy, alkoxycarbonyl, alkoxycarbonyloxy, hydroxyalkyl, haloalkyl, acyl, acyloxy, carbamoyl, carbamoyloxy, alkylthio, alkylsulfinyl, alkylsulfonyl or alkylsulfonyloxy; aryl, aryloxy, arylS(O).sub.p, aralkyl, aralkoxy, aralkS(O).sub.p, arylsulphonyloxy, each of which may in turn be substituted by 1 to 3 substituents selected from halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, nitro, cyano, alkylthio, acyl; amino, substituted amino or together represent .dbd.O, .dbd.S, .dbd.NH, .dbd.NOR.sub.12 or .dbd.CR.sub.13 R.sub.14 ; or
- X and R together may form a bridge having the formula --O--E--, ##STR357## wherein the carbonyl is attached to A, E is defined above and R.sub.2 represents hydrogen, hydroxy, alkyl, haloalkyl, alkoxyalkyl, alkoxy, aralkoxy, unsubstituted or substituted aryl, unsubstituted or substituted aralkyl or is as otherwise defined for R.sub.7 hereinafter;
- P is 0, 1 or 2;
- X.sub.1, X.sub.2 and X.sub.3 are independently hydrogen, hydroxy, alkoxy, alkylthio, hydroxyalkyl or hydroxybenzyl whereby at least one of X.sub.1, X.sub.2 and X.sub.3 is other than hydrogen; or X.sub.3 represents hydrogen and X.sub.1 and X.sub.2 together form a four or five membered bridge comprising elements selected from --O(CH.sub.2).sub.n' O--, ##STR358## R.sub.12 s hydrogen or alkyl, R.sub.13 and R.sub.14 are independently hydrogen, alkyl or halogen,
- m is or one or two,
- n is zero, one or two, and
- n' is two or three.
- 2. A compound according to claim 1 wherein ring system A is selected from pyridyl or pyridyl-N-oxide;
- R is a carboxyl group which may be in the form of the free acid or in ester or salt form, a thiocarboxyl group which may be in the form of the free acid or in ester form, a carbamoyl group or a mono- or di- substituted carbamoyl group;
- Y.sub.1, Y.sub.2 and Y.sub.3 are attached to carbon atoms and are independently hydrogen, halogen, alkyl, alkoxy;
- R.sub.1, R.sub.3 and R.sub.3 ' each is independently hydrogen, halogen, alkyl, alkoxy, aryloxy or aralkoxy;
- X and Y each is independently hydrogen, hydroxy, cyano, alkoxy, acyloxy or together represent .dbd.O; or
- X and R together form a bridge having the formula ##STR359## wherein the carbonyl is attached to A.
- 3. A compound according to claim 1 wherein ring system A represents pyridyl; R represents a carboxyl in the form of the free acid or in ester or salt form; substituted carbamoyl, cyano or together with X represent ##STR360## Y.sub.1, Y.sub.2 and Y.sub.3 each represent independently hydrogen, halogen, alkyl, alkoxy, alkylthio or arylthio,
- X and Y each represent independently hydrogen, hydroxy, alkoxy, acyloxy, halogen, alkylthio or arylthio or together .dbd.O or .dbd.NH and
- R.sub.1 and R.sub.3 each represent independently halogen, alkoxy, alkyl, haloalkoxy, optionally substituted aryloxy, aralkoxy, alkylnyloxy, alkenyloxy.
- 4. A compound according to claim 1 wherein R is other than formyl, a carboxyl group which may be in the form of the free acid or in ester or salt form, a thiocarboxyl group which may be in the form the free acid or in ester form or the group CX.sub.1 X.sub.2 X.sub.3.
- 5. A compound according to claim 1 wherein both of X and Y are other than hydrogen.
- 6. A compound according to claim 1 wherein one of X and Y is other than hydrogen, fluorine, chlorine, methyl, hydroxy, cyano, carbamoyl, methylcarbamoyl, dimethylcarbamoyl or COOR.sub.35, wherein R.sub.35 is C.sub.1-3 alkyl, C.sub.2-5 haloalkyl, C.sub.3-5 alkenyl, C.sub.3-5 alkynyl, C.sub.2-5 alkoxyalkyl, or benzyl optionally substituted by methyl, methoxy, methylthio, trifluoromethyl, halogen or nitro.
- 7. A compound according to claim 3 wherein the pyridyl nitrogen is in the ortho-position to the R bearing carbon or in ortho-position to the carbon atom bearing the bridge linking ring system A to the pyrimidine ring.
- 8. A compound according to claim 3 wherein R.sub.1, R.sub.3 ' and R.sub.3 are independently selected from alkoxy and hydrogen.
- 9. A compound according to claim 3 wherein R is a carbamoyl group or a mono- or di-substituted carbamoyl group.
- 10. A compound according to claim 3 wherein X and Y together represent .dbd.O.
- 11. A compound according to claim 7 wherein R is a carbamoyl group or a mono- or disubstituted carbamoyl group, a carboxyl group which may be in the form of a free acid or in ester or suet form or a thiocarboxyl group which may be in ester form, R.sub.3 ' is hydrogen; R.sub.1, and R.sub.3 are alkoxy and Y.sub.1, Y.sub.2 and Y.sub.3 are hydrogen.
- 12. A herbicidal composition comprising an herbicidally effective amount of a compound according to claim 1.
- 13. A herbicidal composition comprising an herbicidally effective amount of a compound according to claim 3.
- 14. A herbicidal composition comprising an herbicidally effective amount of a compound according to claim 7.
- 15. A method for combatting weeds which comprises applying thereto or to a locus thereof an herbicidally effective amount of a compound according to claim 3.
- 16. A method for combatting weeds which comprises applying thereto or to a locus thereof an herbicidally effective amount of a compound according to claim 7.
- 17. A method for combatting weeds which comprises applying thereto or to a locus thereof an herbicidally effective amount of a compound according to claim 1.
Parent Case Info
This is a Continuation of application Ser. No. 08/201,150, filed on Feb. 23, 1994, now U.S. Pat. No. 5,506,192, which is a Continuation of application Ser. No. 08/036,006, filed Mar. 23, 1993, now abandoned, which is a Continuation-In-Part of application Ser. No. 07/804,150, filed Dec. 6, 1991, now abandoned, which is a Continuation-In-Part of application Ser. No. 07/633,592, filed Dec. 21, 1990, now abandoned, which is a Continuation-In-Part of application Ser. No. 07/534,794, filed Jun. 7, 1990, now abandoned.
US Referenced Citations (5)
Number |
Name |
Date |
Kind |
4832729 |
Shigematsu et al. |
May 1989 |
|
5015285 |
Rheinheimer et al. |
May 1991 |
|
5085685 |
Rheinheimer et al. |
Feb 1992 |
|
5215569 |
Drewes et al. |
Jun 1993 |
|
5262386 |
L uthy et al. |
Nov 1993 |
|
Foreign Referenced Citations (2)
Number |
Date |
Country |
0410590A1 |
Jan 1991 |
EPX |
9110653 |
Jul 1991 |
WOX |
Continuations (2)
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Number |
Date |
Country |
Parent |
201150 |
Feb 1994 |
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Parent |
36006 |
Mar 1993 |
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Continuation in Parts (3)
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Number |
Date |
Country |
Parent |
804150 |
Dec 1991 |
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Parent |
633592 |
Dec 1990 |
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Parent |
534794 |
Jun 1990 |
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