Pyridazinones endowed with insecticidal and acaricidal activity
AssigneePresidenza del Consiglio dei Ministri-Ufficio del Ministro per il coordinamento delle iniziative per la ricerva Scientifica e Tecnologica
InventorsFranco Bettarini, Luigi Capuzzi, Sergio Massimini, Paolo Castoro, Vincenzo Caprioli
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Abstract
Pyridazinones endowed with insecticidal and acaricidal activity are discld, which have the general formula: ##STR1## wherein the symbols have the meaning as defined in claim 1.
Claims27
Pyridazinones having the formula (I):
- ##STR37## wherein:
- R represents a linear or branched (C.sub.2 -C.sub.6) alkyl radical;
- X represents halogen;
- Y represents oxygen, sulfur or an NH radical;
- B represents:
- ##STR38## b is either 0 or 1;
- R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represent, independently from each other, H, a linear or branched (C.sub.1 -C.sub.4) alkyl or haloalkyl radical;
- Z represents a CH radical;
- Y.sub.1 represents O, S, CO or ##STR39## wherein:
- R.sub.k and R.sub.j are, independently from each other:
- H, a linear or branched (C.sub.1 -C.sub.4) alkyl or haloalkyl radical;
- W represents a linear or branched (C.sub.2 -C.sub.6) haloalkylene;
- y and w are, independently from each other, either 0 or 1;
- R.sub.x represents, when w=0, a linear or branched (C.sub.2 -C.sub.6) haloalkenyl radical having a C.sub.1 -C.sub.3 haloalkoxy or a phenyl group as a substituent, which phenyl group is unsubstituted or substituted by halogen, (C.sub.1 -C.sub.6) alkyl, haloalkyl, alkoxy, or haloalkoxy radicals;
- a (C.sub.3 -C.sub.6) halocycloalkyl radical or a (C.sub.4 -C.sub.7) halocycloalkylalkyl radical, which radicals can have substituents consisting of (C.sub.1 -C.sub.4) alkyl or haloalkyl groups;
- R.sub.x, when w=1, represents a linear or branched (C.sub.1 -C.sub.6) haloalkyl radical;
- R' represents halogen;
- n is 0, 1, or 2;
- when n is 2, the R' radicals can be either equal to, or different from, one another.
2-tert.-butyl-4-chloro-5-[4-(1,1,2-trifluoro-2-trifluoromethoxy -ethoxy)-.alpha.-methyl-benzyloxy]-3(2H)-pyridazinone.
2-tert.-butyl-4-chloro-5-[4-(1,1,2-trifluoro-2-trif luoromethoxy-ethoxy)-.alpha.-methyl-benzylthio]-3(2H)-pyridazinone.
2-tert.-butyl-4-chloro-5-[4-(1,1,2-trifluoro-2-trifluoromethoxy- ethoxy)-benzyloxy]-3(2H)-pyridazinone.
2-tert.-butyl-4-chloro-5-[4-(1,1,2- trifluoro-2-trifluoromethoxy-ethoxy)-benzylthio]-3(2H)-pyridazinone.
2-tert.-butyl-4-chloro-5-[4-(2-pentafluoroethoxy-1,1,2-trifluoroe thoxy)-benzylthio]-3(2H)-pyridazinone.
2-tert.-butyl-4-chloro-5-[4-(2-pent afluoroethoxy-1,1,2-trifluoro-ethoxy).alpha.-methylbenzylthio]-3(2H)-pyrida zinone.
2-te rt.-butyl-4-chloro-5-[4-(2-chloro-3,3,3-trifluoropropenyl)-benzylthio]-3(2H )-pyridazinone.
2-tert.-but yl-4-chloro-5-[4-2,2-dichloro-ethenyl)-benzylthio]-3(2H)-pyridazinone.
2-tert.-butyl-4-chloro-5-[4-(1,1,2-trifluoro-2-trifluoromethoxy-et hoxy)-ethyl)-benzylthio]-3(2H)-pyridazinone.
2-tert.-butyl-4-chloro-5-[4-(1,2-difluor o-2-trifluoromethoxy-ethenyl)-benzylthio]-3(2H)-pyridazinone.
2-tert.-butyl-4-chloro-5-[4-(2-chloro-3,3,3-trifluoroprop enyl)-.alpha.-methylbenzylthio]-3(2H)-pyridazinone.
2-tert.-butyl-4-chloro-5-[4-(2,2-dichloroetheny l)-.alpha.-methyl-benzylthio]-3(2H)-pyridazinone.
2-tert.-butyl-4-chloro-5-[4-(1,2-difluoro-2-t rifluoromethoxy-ethenyl)-.alpha.-methylbenzylthio]-3(2H)-pyridazinone.
2-tert.-butyl-4-chloro-5-[4-(2-chloro-2-phenylethenyl)-benzylthio] -3(2H)-pyridazinone.
2-tert.-butyl-4- chloro-5-[4-(2-chloro-(4-chlorophenyl)-ethenyl)-benzylthio]-3(2H)-pyridazin one.
2-tert.-butyl-4-chloro-5-[4-(2,2-dichloro-1-methyl-cyclopropyl-methoxy)-ben zylthio]-3(2H)-pyridazinone.
2-tert.-butyl-4-chloro-5 -[4-(2,2-dichloro-1-methyl-cyclopropyl-carbonyl)-benzylthio]-3(2H)-pyridazi none.
2 -(3,4-dichlorophenyl)-4-chloro-5-[4-(1,1,2-trifluoro-2-trifluoromethoxy-eth oxy)-benzyloxy]-3(2H)-pyridazinone.
2-(3,4-dichlorophenyl)-4-chloro -5-[4-(1,1,2-trifluoro-2-trifluoromethoxy-ethoxy)-benzylthio]-3(2H)-pyridaz inone.
A compound having the structure ##STR41## wherein;
- R is branched C.sub.2 -C.sub.6 alkyl;
- X is halogen;
- Y is oxygen or sulfur;
- R.sub.1 and R.sub.2 are independently H or lower linear alkyl;
- X.sup.1 is halogen.
Dependencies are inferred from the claim text.