Sumitomo Chemical Company, Limited

Sanshiro Matsuo

Noriyasu Sakamoto

Kazunori Tsushima

Masaya Suzuki

Taro Hirose

Kimitoshi Umeda

Kenji Saito

Yoshiaki Oda

Hirotaka Takano

Shigeru Saito

Keiichi Izumi

Hiroshi Sakaguchi

Noboru Yamamoto

Production method of substituted benzenes

Production method of a 2,6-dichlorophenol compound

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

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

The present invention provides a process for producing a propargylcarbinol compound of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are as defined herein. The process comprises reacting a haloallylcarbinol compound of formula (II) with a base. The present invention also relates to a process for producing the haloallylcarbinol compound. The above propargylcarbinol compound is useful as an intermediate for agrochemicals, pharmaceuticals, perfumes, resin monomers, and the like.

Process for producing propargylcarbinol compounds

The present invention provides a process for producing a propargylcarbinol compound of formula (I): ##STR1## where R.sup.1 and R.sup.2 are as defined herein. The process comprises reacting a haloallycarbinol compound of formula (II) with a base. The present invention also relates to a process for producing the haloallylcarbinol compound. The above propargylcarbinol compound is useful as an intermediate for agrochemicals, pharmaceuticals, perfumes, resin monomers, and the like.

A process for producing furylpropargylcarbinol or a derivative thereof represented by the formula (I): ##STR1## wherein R.sup.1 represents hydrogen or methyl, wherein comprises subjecting a haloallylfurylcarbinol or a derivative thereof represented by the formula (II): ##STR2## wherein R.sup.1 represents a hydrogen or methyl and R.sup.2 represents chlorine, bromine or iodine, to a dehydrohalogenation reaction with a base in a reaction solvent. Furylpropargylcarbinol and a derivative thereof produced according to the process of the present invention are very important as intermediates of agricultural chemicals, perfumes and medicines, and particularly applicable to intermediates of prallethrin.

Process for producing furylpropargylcarbinol and derivative thereof

A process for producing furylpropargylcarbinol or a derivative thereof represented by the formula (I): ##STR1## wherein R.sup.1 represents hydrogen or methyl, wherein comprises subjecting a haloallylfurylcarbinol or a derivative thereof represented by the formula (II): ##STR2## wherein R.sup.1 represents hydrogen or methyl and R.sup.2 represents chlorine, bromine or iodine, to a dehydrohalogenation reaction with a base in a reaction solvent. Furylpropargylcarbinol and a derivative thereof produced according to the process of the present invention are very important as intermediates of agricultural chemicals, perfumes and medicines, and particularly applicable to intermediates of prallethrin.

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Toyonaka, Japan

Sanshiro Matsuo