Mitsubishi Kasei Corporation

Mitsubishi Chemical Corporation

Nihon Nohyaku Co., Ltd.

Api Corporation

Manabu Katsurada

Tetsuo Jikihara

Toyohiko Shike

Osamu Ikeda

Hisao Watanabe

Ken Tanaka

Tetsuo Takematsu

Toshiki Fukuchi

Masatsugu Oda

Yasuko Nakajima

Hirofumi Tomita

Naoko Sumitani

Shuko Okui

Nobuo Kyomura

Akemi Hosokawa

Koichi Yoneyama

Kazuya Okano

Akiko Miyauchi

Emiko Mikami

Tomoko Sasaki

Akiko Yabe

Nobuo Kyoumura

An object of the present invention is to provide a industrially appropriate method for producing the &#x3b2;-anomers of ribofuranose derivatives in a highly selective manner at a high yield. The present invention provides a method for producing ribofuranose derivatives wherein &#x3b2;-anomers is precipitated from among the generated furanose derivatives by controlling the amount of a reaction reagent used and/or using a poor solvent in the acetolysis reactions of 2,3,5-tri-O-acyl-1-O-alkyl-ribofuranose and 2,3-di-O-acyl-1-O-alkyl-5-deoxy-ribofuranose.

Method for producing furanose derivative

The invention provides a novel pest control agent having a high systemic activity and a high safety with reduced adverse influences on the environment neighboring the place to which the agent is applied, and a process for producing the same. Namely, the present invention relates to a novel 1-aryl-3-cyano-5-heteroarylalkylaminopyrazole derivative represented by the following general formula (1) and a process for producing the same, and a pest control agent containing the same as an active ingredient.(wherein X represents N or C-halogen, Rrepresents an alkyl group, an alkenyl group, an alkynyl group, or a haloalkyl group, Rrepresents hydrogen atom, an alkyl group, or an acyl group, Rrepresents hydrogen atom or an alkyl group, A represents any one of the groups represented by A-1 to A-4, Rrepresents hydrogen atom, an alkyl group, a halogen atom, and n represents 0, 1, or 2, provided that Ris a haloalkyl group except a perhaloalkyl group when A is A-1 and n is 0, and that n is not 0 when A is A-4.).

Pyrazole derivative, production process thereof, and pest control agent containing the same as active ingredient

A novel 3-substituted .alpha.,.beta.-dibromoethylbenzene of formula (I): ##STR1## wherein X represents a halogen atom or a trihalomethyl group, which is useful as an intermediate for pharmaceuticals or agricultural chemicals, is prepared by a simple and high yield process which comprises reacting a 3-substituted .alpha.-bromoethylbenzene represented by formula (II): ##STR2## wherein X is as defined above, or a 3-substituted ethylbenzene represented by formula (III): ##STR3## wherein X is as defined above, with bromine in the presence of a quaternary ammonium salt.

3-substituted-.alpha., .beta.-dibromoethylbenzene and process for

A methoxyiminoacetic acid derivative represented by the following formula (I): ##STR1## wherein X represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; A represents a methoxy group or a methylamino group; when A is a methoxy group, B represents --O--CO-- or --N=C(R.sup.1)-- and when A is a methylamino group, B represents --O--CR.sup.1 R.sup.2 --, wherein R.sup.1 and R.sup.2 independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or a trifluoromethyl group; and Ar represents an optionally substituted aryl group or an optionally substituted heteroaryl group, and an agricultural/horticultural fungicide containing the same as an active ingredient.

Methoxyiminoacetic acid derivative and agricultural/horticultural

The present invention provides an indan-1,3-dione derivative represented by the following formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group; R.sup.2 represents a group represented by ##STR2## wherein E represents a (substituted) phenyl group or a (substituted) pyridyl group; Y represents a hydroxyl group; and Z represents a halogen atom, a (substituted) alkylsulfonyloxy group or a (substituted) phenylsulfonyloxy group, or Y and Z are bonded to represent --O--; and A represents a (substituted) 1,3-butadienylene group or a (substituted) 1,3-azabutadienylene group, and a herbicidal composition containing the same as an active ingredient.

Indan-1,3-dione derivative and herbicidal composition containing the

The present invention provides indan-1,3-dione derivatives, including derivatives represented by the following formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group; R.sup.2 represents a group represented by ##STR2## wherein E represents a (substituted) phenyl group or a (substituted) pyridyl group; Y represents a hydroxyl group; and Z represents a halogen atom, a (substituted) alkylsulfonyloxy group or a (substituted) phenylsulfonyloxy group, or Y and Z are bonded to represent --O--; and A represents a (substituted) 1,3-butadienylene group or a (substituted) 1,3-azabutadienylene group, and a herbicidal composition containing the same as an active ingredient. The compound of the formula (I) shows high herbicidal activity against gramineous weeds, cyperaceous weeds, etc. but shows markedly low phytotoxicity against crops.

Disclosed herein is a sulfonamide compound represented by the formula (I): ##STR1## wherein A represents a phenyl group which may be substituted, B represents a phenyl group which may be substituted, R represents a lower alkyl group, a lower alkoxy group or a lower haloalkyl group, W represents a hydroxyl group or a halogen atom, and z represents a halogen atom, a lower alkysulfonyloxy group which may be substituted, or a phenylsulfonyloxy group which may be substituted, and a herbicidal composition containing the sulfonamide compound as an effective ingredient.

Sulfonamide and herbicide containing the same as active ingredient

Disclosed herein is an N-[2-(pyridyl)propyl]-N-substituted sulfonamide represented by the following general formula (I): ##STR1## wherein J represents a phenyl group which may be substituted or benzo-condensed, A represents --CH.sub.2 --, --CH.dbd.CH--, --O-- or --N(r)-- (wherein r represents an alkyl group having 1 to 4 carbon atoms), b represents 0 or 1, R represents an alkyl group, alkenyl group, alkynyl group, alkoxy group, fluoroalkyl group or formyl group, D represents a hydroxyl group, E represents a halogen atom, an alkylsulfonyloxy group or a benzenesulfonyloxy group which may be substituted, or D and E represent --O-- in combination, and V represents a pyridyl group which may be substituted, a herbicide containing said N-[2-(pyridyl)propyl]-N-substituted sulfonamide as an active ingredient and a 1-(halogenomethyl)vinylpyridine as an intermediate thereof.

Herbicide containing 1-(halogenomethyl)-vinyl pyridines

Growing community of inventors

Yokohama, Japan

Manabu Katsurada