Mitsui Toatsu Chemicals, Incorporated

Mitsui Chemicals, Inc.

Katsutoshi Kinoshita

Kenji Kodaka

Shirou Shiraishi

Michihiko Nakaya

Koichi Ebihara

Eiichi Yamada

Hirozumi Matsuno

Kazutomi Ohnuma

Takeo Wakita

Nobuyuki Kawahara

Satoshi Numata

Naoko Yasui

Kenichi Satoh

Tomoaki Matsugi

Yutaka Chiba

Takashi Oda

Toshio Kitashima

Hiroshi Miyasako

Makoto Kiya

Katsuhiro Esashika

Ei-ich Yamada

A culture material including a 4-methyl-1-pentene polymer for cells, tissues, or organs, the culture material having a water contact angle at a culture surface of 50&#xb0; to 100&#xb0;, a sagging distance by a test method described below of 0 to 5 mm, and an oxygen permeation rate at a temperature of 23&#xb0; C. and a humidity of 0% of 4500 to 90000 cm/(m&#xd7;24 h&#xd7;atm). A test piece having the same material as the culture material and the same thickness as the culture surface of the culture material and having a flat plate shape of 100 mm long and 10 mm wide is made. The test piece is fixed onto a test board in a state where the test piece protrudes lengthwise in a horizontal direction from a top surface of the test board, the top surface being horizontal.

Culture material and use thereof

3-Formyltetrahydrofuran is prepared by reacting 2,5-dihydrofuran with hydrogen and carbon monoxide in the presence of a group VIII metal compound and tris(2-t-butyl-5-methylphenyl) phosphite.

Method for production of 3-formyl-tetrahydrofuran

A tetrahydrofuran-compound is disclosed herein which is represented by the formula (1) ##STR1## wherein each of X.sub.1 and X.sub.2 is a hydrogen atom or a methyl group, Y is a hydrogen atom or a carbonyl group substituted by a lower alkyl group (Y') having 1 to 4 carbon atoms, i.e., an acyl group (--COY'), and

Insecticidal tetrahydrofuran-compound

The present invention relates to novel (tetrahydro-3-furanyl)methylamino derivatives of the following formula (1): ##STR1## wherein the variables are defined in the specification, which are useful as insecticides.

Intermediate for furanyl insecticide

Furanyl insecticide

The present invention relates to novel N-vinylimidazolidine derivatives of the following formula (1), a process for producing them, an insecticide containing the derivatives as an effective ingredient, and novelintermediates. The derivatives (1) are useful as agricultural chemicals (particularly, as insecticides) in the fields of agriculture, and the intermediates are useful in various industrial fields, especially as intermediates for agricultural chemicals. ##STR1## where R.sup.1, R.sup.2, Z are as defined in the specification.

N-vinylimidazolidine derivatives insecticides containing same as an

Novel dialkoxymethylimidazolidine derivatives of the formula (1) ##STR1## are described. Also, a preparation process of the derivatives and insecticidal compositions comprising the same are set forth. In addition, novel intermediate compounds of the formula (2) useful in preparing the derivatives of the formula (1) are also described along with their preparation process ##STR2##

Dialkoxymethylimidazolidine derivatives

Herein disclosed are novel imidazolidine derivatives of the formula (I) and intermediates of the formula (II) ##STR1## wherein each R represents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, a halogen atom, an alkoxy group having from 1 to 6 carbon atoms, a methylenedioxy group, an alkylthio group having from 1 to 4 carbon atoms, a haloalkyl group having from 1 to 2 carbon atoms, a haloalkoxy group having from 1 to 4 carbon atoms, an alkylcarbonyl group having from 1 to 6 carbon atoms, an alkoxycarbonyl.group having from 1 to 6 carbon atoms, a hydroxy group, a cyano group, a nitro group, an alkylamino group having from 1 to 8 carbon atoms, a phenyl group, a phenoxy group, a benzyl group or a halopyridylmethyloxy group, and n is an integer of from 1 to 3, ##STR2## wherein R and n have, respectively, the same meanings as defined above. Processes for preparing the compounds of the formulas (I) and (II) are also described. Moreover, insecticidal compositions comprising an effective amount of the derivative (I) are described.

Imidazolidine derivatives, preparation thereof, insecticides containing

Novel dialkoxymethylimidazolidine derivatives of the formula (1) ##STR1## are described. Also, a preparation process of the derivatives and insecticidal compositions comprising the same are set forth. In addition, novel intermediate compounds of the formula (2) useful in preparing the derivatives of the formula(1) are also described along with their preparation process ##STR2##

Dialkoxymethylimidazolidine derivatives, preparation thereof,

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Mobara, Japan

Katsutoshi Kinoshita