Nissan Chemical Industries Limited

Kiminori Hirata

Masayoshi Hirose

Yasuo Kawamura

Yoshinori Ochiai

Masatoshi Baba

Tomoyuki Ogura

Masaki Kudo

Masakazu Taniguchi

Shigeru Ishii

Tatsuo Numata

Takahiro Makabe

Kiyomi Ozawa

Toshiro Miyake

Yasuyuki Nakajima

Gojyo Sakata

Kenji Makino

Hiroshi Haruyama

Mamoru Hayashi

Kazuya Kusano

Kazunari Nakayama

Jun Sato

Compounds of the formula: ##STR1## wherein R is a member selected from the group consisting of lower alkyls having from 2 to 4 carbon atoms; and chlorine and bromine. The compounds are useful as active ingredients in, e.g., insecticidal, acaricidal, nematicidal, fungicidal and expellant compositions.

Pyridazinone derivatives, preparation thereof, and insecticidal,

A novel 3(2H)-pyridazinone derivative of the formula [I]: ##STR1## wherein, R represents an alkenyl group having 2 to 16 carbon atoms, an alkynyl group having 2 to 16 carbon atoms, an alkyl group having 3 to 8 carbon atoms substituted by an alkoxy group having 1 to 6 carbon atoms or G-Ra-;

3(2H)-pyridazinone compounds derivatives and compositions for

Novel 3(2H)-pyridazinone derivatives of the formula (I): ##STR1## wherein, X represents a halogen, an alkyl, a haloalkyl, a haloalkoxy atoms, NO.sub.2, an alkoxy or ##STR2## (wherein, R represents an alkyl); n is 1 to 4;

3(2H)-pyridazinone derivatives, and their uses in insecticidal

A nitrogen-containing heterocyclic compound of the following formula: ##STR1## wherein D represents --N.dbd. or ##STR2## E represents .dbd.N--, ##STR3## G represents --N.dbd., ##STR4## with proviso that when G represents --N.dbd. or ##STR5## the bond of G and E is double bond; and G represents ##STR6## the bond thereof is a single bond, but the case that D represents ##STR7## E represents ##STR8## and G represents --N.dbd. is omitted (R.sup.1, R.sup.2, R.sup.9, R.sup.10, X, Y, A and Q are specified in the specification), as well as compositions for controlling and/or preventing pests and blights, said compositions containing one or two or more of said compounds as an active ingredient.

Nitrogen-containing heterocyclic compounds and compositions for

Compounds of the following formula: ##STR1## wherein Z.sup.3 represents halogen atom, straight or branched chain alkyl group having 1 to 10 carbon atoms, alkoxy group having 1 to 10 carbon atoms, alkylcarbonyl having 2 to 10 carbon atoms, alkoxyalkyl group having 2 to 4 carbon atoms, ##STR2## W represents halogen atom, alkyl group having 1 to 4 carbon atoms, alkoxy group having 1 to 4 carbon atoms, haloalkyl group having 1 to 4 carbon atoms, or nitro group, m is 0 or an integer of 1 to 2, and when m is 2, W may be same or different, and compositions for controlling insects, acari and nemati which contain such compound.

Pyridazinone derivatives, and insecticidal, acaricidal and nematicidal

Novel 3(2H)-pyridazinone derivatives having the formula I: ##STR1## wherein, R is a straight or branched C.sub.2 to C.sub.6 alkyl, R.sup.1 and R.sup.2 are each independently hydrogen or a lower alkyl, R.sup.4 is a halogen, R.sup.3 is a halogen, an alkyl, a cycloalkyl, an alkoxy, a haloalkyl, a haloalkoxy, --CN, --NO.sub.2, a phenyl, a benzyloxy, a benzyl, a phenoxy, a phenylthio, a pyridyloxy, a quinoxalyloxy, a lower alkenyloxy, a lower alkylthio, a lower haloalkylthio, --Si(CH.sub.3).sub.3, --OH, --N(CH.sub.3).sub.2, --SCN, --COOCH.sub.3 or --OCH(CH.sub.3)COOC.sub.2 H.sub.5, and n is an integer of 1 to 5, said R.sup.3 being the same or different when n is an integer of 2 to 5. A process for preparation of said derivatives is also provided. These derivatives are useful as an active ingredient of insecticidal, acaricidal, nematicidal and/or fungicidal compositions for agricultural and horticultural uses as well as of expellent compositions for ticks parasitic on animals.

Benzylthio pyridazinone derivatives, preparation thereof, and

Novel 3(2H)-pyridazinone derivatives having the general formula (I): ##STR1## wherein, R denotes a straight or branched C.sub.1 to C.sub.6 alkyl; A denotes a straight or branched C.sub.1 to C.sub.6 alkyl or a halogen; X denotes oxygen or sulfur atom; Q denotes a group; ##STR2## when A is a straight or branched C.sub.1 to C.sub.6 alkyl, and Q denotes a group: ##STR3## when A is a halogen atom; R.sup.1 and R.sup.2 denote each independently hydrogen, a lower alkyl, a lower haloalkyl, or 4-tert-butylphenyl; B denotes --CR.sup.6 .dbd.CR.sup.7 --, --CR.sup.6 R.sup.7 O--, or ##STR4## (wherein, R.sup.6 and R.sup.7 denote various specific organic radicals. A process for preparation of said derivatives is also provided. These derivatives are useful as an active ingredient of insecticidal, acaricidal, nematicidal and/or fungicidal compositions for agricultural and horticultural uses as well as of expellent compositions for ticks parasitic on animals.

A 3(2H)-pyridazinone derivative of the general formula (I): ##STR1## wherein R is a straight or branched C.sub.2 -C.sub.6 alkyl,

Novel 5-substituted -3(2H)-pyridazinone derivatives and preparation thereof are provided. The derivatives have the formula: ##STR1## wherein, R denotes an alkyl, R.sup.1 and R.sup.2 denote each independently hydrogen or a lower alkyl, X denotes hydrogen, a lower alkyl, a halogen, a lower alkoxy, a lower haloalkyl, a lower haloalkoxy, a cycloalkyl, trimethylsilyl (-Si(CH.sub.3).sub.3), ##STR2## (wherein Y denotes hydrogen, a halogen, a lower alkyl, a lower alkoxy, a lower haloalkyl, a lower haloalkoxy or a cycloalkyl, and m is an integer of 1 to 5), n is an integer of 1 to 5, and Z denotes a halogen; said X being the same or different when n is 2 or more, and the alkyls and the alkyl moieties contained in the groups being straight or branched.

Pyridazinone derivatives, preparation thereof, and agricultural and

Novel N-containing heterocyclic ring-substituted O-arylphosphate derivatives, the preparation thereof and insecticides acaricides and nematicides containing said derivatives are provided. The O-arylphosphate derivatives have the general formula: ##STR1## wherein A is --CH or nitrogen, X is hydrogen, a halogen or trifluoromethyl; Y is oxygen, S(O)n (wherein n is an integer of from 0 to 2) or NR.sup.2 (wherein R.sup.2 is hydrogen or a lower alkyl); Z is oxygen or sulfur; R and R.sup.1 independently are a lower alkoxy or lower alkylthiol; and B is hydrogen, a halogen or a lower alkyl. The O-arylphosphate derivatives have an excellent insecticidal acaricidal and nematocidal action.

N-Containing heterocyclic ring-substituted O-arylphosphate derivatives,

This invention relates to a heterocyclic ether or thioether linkage containing urea compounds of the following formula I: ##STR1## wherein B denotes an oxygen atom or a sulfur atom, A denotes CH or a nitrogen atom, X.sup.1 and X.sup.2 denote independently of each other hydrogen atom, halogen atom, trifluoromethyl group or nitro group, Y and Z denote independently of each other hydrogen atom or halogen atom, and P and Q denote independently of each other hydrogen atom, halogen atom, alkoxyl group or alkyl group, a process for producing the same and an insecticide containing the same.

Benzoazine ether or thioether linkage containing urea compounds, process

Phenylcyclopropane carboxylic acid derivatives having the formula (I) ##STR1## wherein X represents a C.sub.2 -C.sub.10 straight or branched alkyl group, are novel compounds having excellent acaricidal effect.

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Minamisaitama, Japan

Kiminori Hirata