Claims
- 1. A 4-benzoylpyrazole of the formula I ##STR19## where: R.sup.1 and R.sup.2 are each hydrogen, mercapto, nitro, halogen, cyano, thiocyanato, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -haloalkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -alkynyl, --OR.sup.3, --OCOR.sup.3, --OSO.sub.2 R.sup.3, --S(O).sub.n R.sup.3, --SO.sub.2 OR.sup.3, --SO.sub.2 N(R.sup.3).sub.2, --NR.sup.3 SO.sub.2 R.sup.3 or --NR.sup.3 COR.sup.3 ;
- R.sup.3 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -haloalkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -alkynyl, phenyl or phenyl-C.sub.1 -C.sub.6 -alkyl; where the alkyl radicals mentioned may be partially or fully halogenated and/or carry one to three of the following groups:
- hydroxyl, mercapto, amino, cyano, R.sup.3, --OR.sup.3, --SR.sup.3, --N(R.sup.3).sub.2, .dbd.NOR.sup.3, --OCOR.sup.3, --SCOR.sup.3, --NR.sup.3 COR.sup.3, --CO.sub.2 R.sup.3, --COSR.sup.3, --CON(R.sup.3).sub.2, C.sub.1 -C.sub.4 -alkyliminooxy, C.sub.1 -C.sub.4 -alkoxyamino, C.sub.1 -C.sub.4 -alkylcarbonyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.2 -C.sub.6 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkylsulfonyl, heterocyclyl, heterocyclyloxy, phenyl, benzyl, hetaryl, phenoxy, benzyloxy and hetaryloxy, where the eight last-mentioned radicals may in turn be substituted;
- n is 0, 1 or 2;
- Q is a pyrazole of the formula II which is attached in position 4, ##STR20## where R.sup.4 is hydrogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -haloalkyl;
- R.sup.5 is C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -haloalkyl, phenyl or phenyl which may be partially or fully halogenated and/or carry one to three of the following radicals:
- nitro, cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy;
- R.sup.6 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -haloalkyl, C.sub.1 -C.sub.6 -alkylcarbonyl, C.sub.1 -C.sub.6 -haloalkylcarbonyl, C.sub.1 -C.sub.6 -alkoxycarbonyl, C.sub.1 -C.sub.6 -alkylsulfonyl, C.sub.1 -C.sub.6 -haloalkylsulfonyl, phenylcarbonyl, phenylcarbonylmethyl, phenoxycarbonyl or phenylsulfonyl,
- where the four last-mentioned substituents are either unsubstituted, or the phenyl ring may in each case be partially or fully halogenated and/or carry one to three of the following radicals:
- nitro, cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy;
- X.sup.1 is a straight-chain or branched C.sub.1 -C.sub.6 -alkylene, a C.sub.2 -C.sub.6 -alkenylene or a C.sub.2 -C.sub.6 -alkynylene chain, where the alkylene, alkenylene or alkynylene radicals mentioned may be partially halogenated and/or carry one to three of the following groups:
- --OR.sup.7, --OCOR.sup.7, --OCONHR.sup.7 or --OSO.sub.2 R.sup.7,
- and where those of the alkenylene radicals mentioned are excluded where the double bond is .alpha.,.beta. to the phenyl ring and where Het is linked to the double bond via the .beta. position;
- R.sup.7 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -alkynyl, phenyl, phenyl-C.sub.1 -C.sub.6 -alkyl, where the alkyl, alkenyl or alkynyl radicals mentioned may be partially or fully halogenated and/or substituted by one or more of the following radicals:
- hydroxyl, mercapto, amino, cyano, nitro, formyl, C.sub.1 -C.sub.4 -alkylamino, C.sub.1 -C.sub.4 -dialkylamino, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkylcarbonyl, C.sub.1 -C.sub.4 -alkylcarbonyloxy, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -haloalkylthio, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy;
- Het is a three- to six-membered, partially or fully saturated heterocyclic group or a three- to six-membered heteroaromatic group having up to three hetero atoms selected from the group consisting of:
- nitrogen, oxygen and sulfur,
- where the heterocyclic or heteroaromatic group mentioned may be partially or fully halogenated and/or substituted by R.sup.8 ;
- and when Het is a piperidinyl radical it is 2-piperidinyl, 3-piperidinyl or 4-piperidinyl;
- R.sup.8 is hydrogen, hydroxyl, mercapto, amino, cyano, nitro, formyl, C.sub.1 -C.sub.4 -alkylamino, C.sub.1 -C.sub.4 -dialkylamino, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkylcarbonyl, C.sub.1 -C.sub.4 -alkylcarbonyloxy, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -haloalkylthio, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, where in all instances each of the alkyl radicals may be substituted by one or more of the following radicals:
- cyano, formyl, C.sub.1 -C.sub.4 -alkylamino, C.sub.1 -C.sub.4 -dialkylamino, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkylcarbonyl, C.sub.1 -C.sub.4 -alkylcarbonyloxy, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -haloalkylthio, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy;
- and agriculturally useful salts thereof.
- 2. A 4-benzoylpyrazole of the formula I as claimed in claim 1, in which
- R.sup.1 is nitro, halogen, cyano, thiocyanato, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -haloalkyl, C.sub.1 -C.sub.6 -alkoxy-C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 -C.sub.6 -alkynyl, --OR.sup.3 or --S(O).sub.n R.sup.3 ;
- R.sup.2 is hydrogen or one of the radicals mentioned above under R.sup.1.
- 3. A 4-benzoylpyrazole of the formula Ia as claimed in claim 1, ##STR21## where the substituents R.sup.1, R.sup.2, Q, X.sup.1 and Het are each as defined under claim 1.
- 4. A 4-benzoylpyrazole of the formula Ia as claimed in claim 3 in which X.sup.1 is a C.sub.1 -C.sub.2 -alkylene or C.sub.2 -alkynylene chain.
- 5. A 4-benzoylpyrazole of the formula Ia as claimed in claim 1 in which Het is a five- or six-membered, partially or fully saturated heterocyclic or a five- or six-membered heteroaromatic group having up to three hetero atoms selected from the group consisting of
- nitrogen, oxygen and sulfur.
- 6. A process for preparing 4-benzoylpyrazoles of the formula I as claimed in claim 1, which comprises acylating a pyrazole of the formula Ia in which the substituents R.sup.5 and R.sup.4 are each as defined under claim 1 ##STR22## with an activated carboxylic acid IIIa or with a carboxylic acid IIIb, ##STR23## where the substituents R.sup.1, R.sup.2, X.sup.1 and Het are each as defined in claim 1 and L.sup.1 is a nucleophilically replaceable leaving group, and rearranging the acylation product, if appropriate in the presence of a catalyst, to the compounds I and, if desired, reacting it with a compound of the formula IV,
- L.sup.2 --R.sup.6 IV
- (where R.sup.6 .noteq.H)
- in which R.sup.6 is as defined in claim 1, except for hydrogen, and L.sup.2 is a nucleophilically replaceable leaving group, for preparing 4-benzoylpyrazoles of the formula I where R.sup.6 .noteq.H.
- 7. A composition comprising a herbicidally effective amount of at least one 4-benzoylpyrazole of the formula I or an agriculturally useful salt of I as claimed in claim 1 and auxiliaries customary for the formulation of crop protection agents.
- 8. A process for preparing herbicidally effective compositions as claimed in claim 7, which comprises mixing a herbicidally effective amount of at least one 4-benzoylpyrazole of the formula I or an agriculturally useful salt of I and auxiliaries customary for the formulation of crop protection agents.
- 9. A process for controlling undesirable vegetation, which comprises allowing a herbicidally effective amount of at least one 4-benzoylpyrazole of the formula I or an agriculturally useful salt of I as claimed in claim 1 to act on plants, their habitat and/or on seeds.
Priority Claims (1)
Number |
Date |
Country |
Kind |
197 34 186 |
Aug 1997 |
DEX |
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Parent Case Info
This application is a 371 of PCT/EP98/04481 filed Jul. 20, 1998.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
102e Date |
371c Date |
PCT/EP98/04481 |
7/20/1998 |
|
|
2/7/2000 |
2/7/2000 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO99/07697 |
2/18/1999 |
|
|
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3655693 |
Shen |
Apr 1972 |
|
5846907 |
von Deyn et al. |
Dec 1998 |
|
Foreign Referenced Citations (2)
Number |
Date |
Country |
282 944 |
Sep 1988 |
EPX |
282 944 A3 |
Sep 1988 |
EPX |
Non-Patent Literature Citations (3)
Entry |
Chem Ber. 105, 863-873 (1972) Bohlmann et al. |
Chem. Abs. Vo. 076 (1972) No. 15, 85658n. |
XP-002088290, Miyano et al., 1909-1912. |