Shin-etsu Chemical Co., Ltd.

Naoki Ishibashi

Takeshi Kinsho

Yusuke Nagae

Yuki Miyake

Takehiko Fukumoto

Miyoshi Yamashita

Ryuichi Saguchi

Akihiro Baba

Tatsuya Hojo

Satoshi Ogitani

Shinnosuke Wakamori

Jun Hatakeyama

Yoshiyuki Yumoto

Masayoshi Sagehashi

Masahiro Fukushima

Tatsuya Fujii

Erina Ohno

The present invention provides a process for preparing a diester compound of the following general formula (1), having a dimethylcyclobutane ring, wherein Rand Rrepresent, independently of each other, a monovalent hydrocarbon group having 1 to 10 carbon atoms, the process comprising reacting a dimethylcyclobutanone compound of the following general formula (2), wherein Ris as defined above, with a phosphonic ester compound of the following general formula (3), wherein Rand Rrepresent, independently of each other, a monovalent hydrocarbon group having 1 to 10 carbon atoms, to produce the diester compound (1), having a dimethylcyclobutane ring.

Diester compound having a dimethylcyclobutane ring, a process for preparing the same, and a process for preparing dimethylcyclobutane compound derived from the diester compound

A positive resist composition comprises a base polymer comprising repeat units (a) derived from a triple bond-containing maleimide compound and repeat units (b) adapted to increase solubility in an alkaline developer under the action of acid. A pattern of good profile with a high resolution, reduced edge roughness, and reduced size variations is formed therefrom.

Positive resist composition and pattern forming process

A composition for forming an aerosol, an aerosol sprayer for insect pest mating disruption, and a method for insect pest mating disruption, thereby reducing disadvantageous effects caused by falling to a ground surface and oxidative decomposition of the sprayed particles. More specifically, the composition including an aerosol stock solution containing an aliphatic linear aldehyde having 10 to 20 carbon atoms and a non-alcoholic diluent, and a propellant, wherein a weight ratio of the aerosol stock solution to the propellant is from 45:55 to 65:35; the sprayer including the composition and a pressure resistant container for enclosing the composition therein, wherein sprayed particles at a spray travel distance of 15 cm have a median particle size (Dv50) at 25° C. of from 35 to 65 μm by a volume-based cumulative particle size distribution and; the method using the aerosol sprayer; and the like.

Aerosol sprayer for insect pest mating disruption

The present invention provides a process for preparing a dimethylcyclobutane compound of the following general formula (1A), the process comprising reacting a dimethylcyclobutanone compound of the following general formula (2) with a phosphonic ester compound of the following general formula (3) to produce an unsaturated ester compound of the following general formula (4), having a dimethylcyclobutane ring, and subjecting the unsaturated ester compound (4), having a dimethylcyclobutane ring, to a reduction reaction to produce the dimethylcyclobutane compound (1A).

Dimethylcyclobutanone compounds, dimethylcyclobutane compounds, and processes for preparing the same

A positive resist material contains a base polymer containing: a repeating unit having two carboxyl groups whose hydrogen atoms are substituted with two tertiary carbon atoms each bonded to a double bond or triple bond; and a repeating unit having an acid generator shown by any of the following formulae (b1) to (b3). Thus, the present invention provides: a positive resist material having higher sensitivity than conventional positive resist materials, and smaller dimensional variation; and a patterning process using this inventive positive resist material.

Positive resist material and patterning process

The present invention relates to a process for preparing a 3-isopropenyl-6-heptenal compound of the following formula (2): wherein Rrepresents a hydrogen atom or a methyl group, the process comprising: subjecting a 3-isopropenyl-6-heptenoate ester compound of the following formula (1): wherein Ris as defined above, and Rrepresents a monovalent hydrocarbon group having 1 to 10 carbon atoms, to a reduction reaction with a reducing agent to form the 3-isopropenyl-6-heptenal compound (2).

Processes for preparing a 3-isopropenyl-6-heptenal compound and a 6- isopropenyl-3-methyl-3,9-decadienyl carboxylate compound, and an intermediate therefor

The present invention provides a process for preparing a dimethylcyclobutane compound of the following general formula (1A), the process comprising reacting a dimethylcyclobutanone compound of the following general formula (2) with a phosphonic ester compound of the following general formula (3) to produce an unsaturated ester compound of the following general formula (4), having a dimethylcyclobutane ring, and subjecting the unsaturated ester compound (4), having a dimethylcyclobutane ring, to a reduction reaction to produce the dimethylcyclobutane compound (1A). 

The present invention provides a process for preparing a diester compound of the following general formula (1), having a dimethylcyclobutane ring, wherein Rand Rrepresent, independently of each other, a monovalent hydrocarbon group having 1 to 10 carbon atoms, the process comprising reacting a dimethylcyclobutanone compound of the following general formula (2), wherein Ris as defined above, with a phosphonic ester compound of the following general formula (3), wherein Rand Rrepresent, independently of each other, a monovalent hydrocarbon group having 1 to 10 carbon atoms, to produce the diester compound (1), having a dimethylcyclobutane ring. 

A process for preparing 4-penten-2-ynal of the following formula (2):CH&#x2550;CHC&#x2261;CCHO&#x2003;&#x2003;(2)the process comprising a step of 

Process for preparing 4-penten-2-ynal

There is provided a method of controlling filbertworm capable of reducing the number of release positions without changing a dosage amount per unit area. More specifically, there is provided a method of controlling filbertworm comprising the step of: providing E,E-8,10-dodecadienyl acetate or a composition comprising 80% by weight or more of E,E-8,10-dodecadienyl acetate at 1 to 100 release positions/ha to release the E,E-8,10-dodecadienyl acetate at a release rate of from 0.01 to 5 g/day/ha for mating disruption.

Method of controlling filbertworm

Provided are an insect pest-targeting gel composition causing neither leakage nor reaction of a volatile substance and capable of releasing the volatile substance at a constant rate; and a sustained release preparation including the insect pest-targeting gel composition. More specifically, provided is an insect pest-targeting gel composition including one or more volatile substances and an oil gelling agent, wherein the volatile substance is included in an amount of from 70.0 to 99.0% by weight by the insect pest-targeting gel composition.

Insect pest-targeting gel composition and sustained release preparation comprising that

Methods of producing a 2,4-dienal acetal compound and a 2,4-dienal compound useful as synthesis intermediates of a sex pheromone compound having a conjugated diene structure or a conjugated triene structure. More specifically, a method produces a 2,4-dienal acetal compound of Formula (2): RCH&#x2550;CH&#x2014;CH&#x2550;CH&#x2014;CH(OR)(OR), including a step of subjecting a 2-enal acetal compound having a leaving group X at position C5 and being expressed by Formula (1): RCHX&#x2014;CH&#x2014;CH&#x2550;CH&#x2014;CH(OR)(OR) to an elimination reaction in the presence of a base to obtain the 2,4-dienal acetal compound (2); and a method for producing a 2,4-dienal compound of Formula (3): RCH&#x2550;CH&#x2014;CH&#x2550;CH&#x2014;CHO, further including a step of deprotecting the 2,4-dienal acetal compound (2) to obtain the 2,4-dienal compound (3).

Method for producing 2,4-dienal acetal compound and 2,4-dienal compound

A sustained release pheromone formulation is provided in which once it is secured to a branch or other support, the likelihood of falling off is significantly reduced, and which is capable of being quickly attached to a small or large branch. The sustained release pheromone formulation includes a first and second sheet parts which are provided by bending a single polymer sheet so that they are arranged in a face-to-face manner, the sheet parts each having an engaging hole therethrough; a bend part located between the sheet parts; at least one sex pheromone substance carried on at least a part of the sheet parts; and slits each extending from the bend part to the engaging hole in each one of the sheet parts. This formulation can be secured to the rod-shaped support by guiding the rod-shaped support to the engaging holes via the slits and engaging with the holes.

Sustained release pheromone formulation

A method for the preparation of a sex pheromone of Obscure Mealy bug (OMB), (&#xb1;)(2,3,4,4-tetramethycyclopentyl) methyl acetate includes a step of subjecting alpha-halotetramethylcyclohexanone to a Favorskii rearrangement to obtain a 2,3,4,4-tetramethylcyclopentane compound (2), a step of subjecting the compound (2) to reduction to obtain (2,3,4,4-tetramethylcyclopentyl)methanol compound (3) and a step of subjection the compound (3) to acylation to obtain a (2,3,4,4-tetramethylcyclopentyl)methyl carboxylate compound (4).

Alpha-halotetramethycyclohexanone, a method for the preparation thereof, and a method for the preparation of a (2,3,4,4-tetramethylcyclopentyl)methy carboxylate compound

Provided are a method for efficiently producing an asymmetric conjugated diyne from an inexpensive and safe alternative compound to hydroxylamine hydrochloride and a method for producing a Z,Z-conjugated diene compound from the asymmetric conjugated diyne compound thus obtained. More specifically, provided is a method for producing an asymmetric conjugated diyne compound comprising a step of subjecting a terminal alkyne compound (1): HC&#x2261;C&#x2014;Z&#x2014;Yto a coupling reaction with an alkynyl halide (2): Y&#x2014;Z&#x2014;C&#x2261;C&#x2014;X by using sodium borohydride in water and an organic solvent in the presence of a copper catalyst and a base to obtain the asymmetric conjugated diyne compound (3): Y&#x2014;Z&#x2014;C&#x2261;C&#x2014;C&#x2261;C&#x2014;Z&#x2014;Y. In addition, provided is a method for producing a Z,Z-conjugated diene compound by reducing the resulting asymmetric conjugated diyne compound, or the like.

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Joetsu, Japan

Naoki Ishibashi