Sumitomo Chemical Company, Limited

Taro Hirose

Noriyasu Sakamoto

Kazunori Tsushima

Masaya Suzuki

Sanshiro Matsuo

Shigeru Saito

Kimitoshi Umeda

Hirosi Kisida

Hirotaka Takano

Keiichi Izumi

Hiroaki Fujimoto

Hiroki Tomioka

Toshiaki Taki

Koji Hagiya

Tatsuya Mori

Tomoaki Takahashi

Kazuyasu Tani

A method for producing a racemate of a compound represented by Formula (1), including bringing a transition metal catalyst into contact with an optically active form of the compound represented by Formula (1): 

Method for producing racemate of compound

According to the present invention, a new process for producing a sulfur-containing amino acid without using of hydrogen cyanide or sodium azide which requires careful handling as a raw material can be provided. The present invention relates to a process for producing a sulfur-containing amino acid represented by the following formula (1) or a salt thereof:  

Process for producing sulfur-containing amino acid or salt thereof

The dihalopropene compounds of the general formula (I) have excellent insecticidal/acaricidal activity, so that they are satisfactorily effective for the control of noxious insects, mites and ticks.

Dihalopropene compounds, insecticidal/acaridcidal agents containing same, and intermediates for their production

The dihalopropene compounds of the general formula &lsqb;I&rsqb; have excellent insecticidal/acaricidal activity, so that they are satisfactorily effective for the control of noxious insects, mites and ticks.

Dihalopropene compounds, insecticidal/acaricidal agents containing same, and intermediates for their production

It provides a production method of 4-methoxymethyl-2,3,5,6-tetrafluorobenzenemethanol to allow 2,3,5,6-tetrafluoro-1,4-benzenedimethanol to react with an inorganic base in water, and then add dimethyl sulfate and a water-immiscible organic solvent selected from the group consisting of hydrocarbons and ethers to the reaction mixture, or to allow 2,3,5,6-tetrafluoro-1,4-benzenedimethanol to react with an inorganic base in water and said water-immiscible organic solvent, and then to add dimethyl sulfate to the reaction mixture.

Method for producing 4-methoxymethyl-2,3,5,6-tetrafluorobenzenemethanol

The present invention provides dihalopropene compounds of the general formula:

Dihalopropene compounds insecticides containing them as active ingredients, and intermediates for their production

The dihalopropene compounds of the general formula [I ] have excellent insecticidal/acaricidal activity, so that they are satisfactorily effective for the control of noxious insects, mites and ticks.

Dihalopropene compounds, insecticidal/acaricidal agents containing same,

The present invention provides dihalopropene compounds of the general formula: ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.10 alkyl or the like; L is C(.dbd.O)NH or the like; R.sub.2, R.sub.3 and R.sub.4 are independently halogen or the like; R.sub.5, R.sub.6 and R.sub.7 are independently hydrogen or the like; m is an integer of 0 to 4; n is an integer of 0 to 2; X is chlorine or the like; Y is oxygen or the like; and Z is oxygen or the like, which have excellent insecticidal activity so that they are satisfactorily effective for the control of noxious insects.

Dihalopropene compounds, insecticides containing them as active

A hydrazone compound of the general formula (I): ##STR1## wherein X is halogen; R.sup.1 is hydrogen, optionally substituted C.sub.1 -C.sub.4 alkyl or optionally substituted C.sub.1 -C.sub.4 alkoxy; R.sup.2 's are independently hydrogen or fluorine; R.sup.3 is a group of the general formula: CH.sub.2 R.sup.4 wherein R.sup.4 is cyano or C.sub.1 -C.sub.4 alkoxy; or R.sup.3 is a group of the general formula: SR.sup.5 wherein R.sup.5 is optionally substituted C.sub.1 -C.sub.16 alkyl; optionally substituted phenyl, or the like, has excellent insecticidal activity and rather low toxicity to mammals. The hydrazone compound is useful as an active ingredient of insecticides for controlling harmful insects.

Hydrazone compound and insecticide containing said compound as active

An oxazoline derivative having the formula: ##STR1## which is useful for control of insects, mites and/or ticks.

Oxazoline derivative, its production and its use

The present invention provides a hydrazone compound of the formula I: ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are independently hydrogen, C.sub.1 -C.sub.2 alkyl, C.sub.1 -C.sub.2 alkoxy, methoxymethyl or cyanomethyl, with the proviso that the R.sup.1 and R.sup.2 are not simultaneously hydrogen; R.sup.3 is trifluoromethyl or methyl; and X is halogen, and an insecticide containing the hydrazone compound as an active ingredient. The hydrazone compound has good insecticidal activity and lower acute toxicity to mammals.

Hydrazone compound and insecticide containing the same as active

An oxazoline derivative having the formula: ##STR1## which is useful for control of insects, mites and/or ticks. R.sub.1 is H, halo, (halo) alkyl, alkoxy alkyl, (halo) alkoxy alkyl, (halo) alkyl thio, (halo) cycloalkyl, alkylcycloalkyl, (halo) cycloalkoxy, alkylcycloalkoxy or (R.sup.5) phenyl, phenoxyl or phenylthio or (R.sup.5) pyridyl, pyridoxyl or pyridylthio, R.sub.3 is H or methyl, R.sub.4 is phenyl or mono or disubstituted phenyl.

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Osaka, Japan

Taro Hirose