Plant protecting and regulating compositions – Plant growth regulating compositions – Organic active compound containing
Patent
1997-12-22
2000-08-29
Ford, John M.
Plant protecting and regulating compositions
Plant growth regulating compositions
Organic active compound containing
514409, 548408, 548410, 548411, C07D20738, C07D30760, C07D33332, A01N 4336
Patent
active
061108723
DESCRIPTION:
BRIEF SUMMARY
The invention relates to new phenyl-substituted cyclic ketoenols, several processes and intermediate products for their preparation and their use as pest control agents and herbicides.
It has already been disclosed that certain phenyl-substituted cyclic ketoenols are active as insecticides, acaricides and/or herbicides.
Pharmaceutical properties have already been described for 3-acyl-pyrrolidine-2,4-diones (S. Suzuki et al. Chem. Pharm. Bull. 15 1120 (1967)). Furthermore, N-phenylpyrrolidine-2,4-diones have been synthesized by R. Schmierer and H. Mildenberger (Liebigs Ann. Chem. 1985, 1095). No biological activity has been described for these compounds.
EP-A-0 262 399 and GB-A-2 266 888 disclose compounds of similar structure (3-aryl-pyrrolidine-2,4-diones), of which, however, no herbicidal, insecticidal or acaricidal action has been disclosed. Known compounds which have a herbicidal, insecticidal or acaricidal action are unsubstituted, bicyclic 3-aryl-pyrrolidine-2,4-dione derivatives (EP-A-355 599 and EP-A-415 211) and substituted monocyclic 3-aryl-pyrrolidine-2,4-dione derivatives (EP-A-377 893 and EP-A-442 077).
Compounds which are furthermore known are polycyclic 3-arylpyrrolidine-2,4-dione derivatives (EP-A-442 073) and IH-arylpyrrolidine-dione derivatives (EP-A-456 063, EP-A-521 334, EP-A-596 298, EP-A-613 884, EP-A-613 885, DE 44 40 594, WO 94/01 997 and WO 95/01 358).
It is known that certain substituted .DELTA..sup.3 -dihydrofuran-2-one derivatives have herbicidal properties (cf. DE-A-4 014 420). The synthesis of the tetronic acid derivatives used as starting compounds (such as, for example, 3-(2-methyl-phenyl)-4-hydroxy-5-(4-fluorophenyl)-.DELTA..sup.3 -dihydrofuran-2-one) is likewise described in DE-A-4 014 420. Compounds of similar structure, without an insecticidal and/or acaricidal activity being mentioned, are known from the publication Campbell et al., J. Chem. Soc., Perkin Trans. 1, 1985, (8) 1567-76. 3-Aryl-.DELTA..sup.3 -dihydrofuranone derivatives having herbicidal, acaricidal and insecticidal properties are furthermore known from EP-A-528 156, EP-A 0 647 637 and WO 95/26345.
Certain phenyl-pyrone derivatives which are unsubstituted in the phenyl ring have already been disclosed (cf. A. M. Chirazi, T. Kappe and E. Ziegler, Arch. Pharm. 309, 558 (1976) and K.-H. Boltze and K. Heidenbluth, Chem. Ber. 91, 2849), no possible usefulness of these compounds as pest control agents being mentioned. Phenyl-pyrone derivatives which are substituted in the phenyl ring and have herbicidal, acaricidal and insecticidal properties are described in EP-A-588 137.
Certain 5-phenyl-1,3-thiazine derivatives which are unsubstituted in the phenyl ring have already been disclosed (cf. E. Ziegler and E. Steiner, Monatsh. 95, 147 (1964), R. Ketcham, T. Kappe and E. Ziegler, J. Heterocycl. Chem. 10, 223 (1973)), no possible use as pest control agents being mentioned for these compounds. 5-Phenyl-1,3-thiazine derivatives which are substituted in the phenyl ring and have a herbicidal, acaricidal and insecticidal action are described in WO 94/14 785.
However, the acaricidal and insecticidal activity and/or range of action and the plant tolerance of these compounds, in particular with respect to crop plants, is not always adequate.
New compounds of the formula (I) ##STR2## in which X represents halogen, alkyl, alkenyl, alkinyl, alkoxy, halogenoalkyl, halogenoalkoxy, cyano or nitro, halogenoalkoxy, cyano or nitro, hydroxyl, cyano, nitro or in each case optionally substituted phenoxy, phenylthio, 5- to 6-membered hetaryloxy, 5- to 6-membered hetarylthio, phenylalkyloxy or phenylalkylthio or a cyclic radical which is optionally substituted and optionally interrupted by heteroatoms, wherein X has one of the abovementioned meanings, ##STR3## wherein A represents hydrogen, or represents alkyl, alkenyl, alkoxyalkyl, polyalkoxyalkyl or alkylthioalkyl which are in each case optionally substituted by halogen, or represents in each case saturated or unsaturated and optionally substituted cycloalkyl or heterocyclyl, or represent
Bretschneider Thomas
Dahmen Peter
Dollinger Markus
Erdelen Christoph
Fischer Reiner
Bayer Aktiengesellschaft
Ford John M.
Kifle Bruck
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