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公开(公告)号：JP2001058978A
公开(公告)日：2001-03-06
申请号：JP2000125220
申请日：2000-04-26
Applicant: MITSUI CHEMICALS INC
Inventor： NISHIMURA TAKESHI , FURUYA MASAYUKI , TANAKA JUNYA , WADA MASARU
IPC: C07C303/38 , C07C311/21
Abstract: PROBLEM TO BE SOLVED: To industrially advantageously produce a sulfonamide compound at a short time in high yield while suppressing the generation of by-product by regulating the pH of a reaction liquid in the reaction of an aminohydroxy compound with a sulfonyl halide. SOLUTION: When reacting a compound of formula I (X1 is H, a halogen or the like; Z1 is H, an alkyl or the like), (e.g. 4-aminophenol) with a compound of formula II (Y1 is a halogen; R1 to R5 are each H, a halogen, an alkyl or the like), (e.g. benzenesulfonyl chloride) in a solvent (e.g. water), the pH of the reaction liquid is regulated so as to be 2-9 to provide the objective compound of formula III (X2 is the same as X1; Z2 is the same as Z1; R11 to R15 are the same as R1 to R5 respectively), [e.g. N-(4-hydroxyphenyl) benzenesulfonamide]. The regulation of the pH of the reaction liquid is preferably carried out by using a basic compound (e.g. sodium hydroxide.
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42.发明专利
公开(公告)号：JP2000109473A
公开(公告)日：2000-04-18
申请号：JP28306698
申请日：1998-10-05
Applicant: MITSUI CHEMICALS INC
Inventor： NAGATOMO AKINORI , WADA MASARU
IPC: C07D311/60 , A61K8/00 , A61K8/33 , A61K8/49 , A61Q17/04 , A61Q19/00 , A61Q19/02 , C07C43/23 , A61K7/00 , A61K7/42 , A61K7/48
Abstract: PROBLEM TO BE SOLVED: To obtain a new flavan derivative having excellent pigmentation- inhibiting effect, excellent beautifully whitening effect, high skin safety and storage stability and useful as an active ingredient for cosmetics. SOLUTION: A compound of formula I (R1 to R3 are each H, a 1-20C alkyl, an alkenyl or the like), preferably 2-(2,4-dihydroxyphenyl)-7-hydroxychroman. The compound of formula I is obtained by catalytically hydrogenating a hydrochalcone derivative of formula II (R4 to R7 are each H, a 1-20C alkyl, an alkenyl or the like) [for example, 1,3-bis(2,4-dibenzyloxyphenyl)-3-hydroxy-1- propene] in a solvent such as methanol usually at 0-100 deg.C under the atmospheric pressure to 1 MPa.G, for example, by a method for bringing the compound of formula II into contact with hydrogen in the presence of a catalyst such as Pd/C, and subsequently removing protecting groups.
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公开(公告)号：JP2000103768A
公开(公告)日：2000-04-11
申请号：JP27880198
申请日：1998-09-30
Applicant: MITSUI CHEMICALS INC
Inventor： NISHIMURA TAKESHI , TAKEDA FUMINORI , WADA MASARU , KANEMURA YOSHINOBU
IPC: C07C221/00 , C07C223/06
Abstract: PROBLEM TO BE SOLVED: To obtain a p-N-substituted aminobenzaldehyde in a high yield by reacting a Vilsmeier complex with an N-substituted aniline in an organic solvent, hydrolyzing the reaction product and subsequently extracting off an o-substituted isomer with an acidic aqueous solution. SOLUTION: This method for producing a p-N-substituted aminobenzaldehyde comprises reacting (B) a Vilsmeier complex [a complex obtained by reacting (i) a secondary acid amide (for example, dimethylformamide) with (ii) a halogenating reagent (for example, phosgene)] with (C) an N-substituted aniline (for example, N,N-dimethylaniline) in (A) an organic solvent (for example, 1,2-dichloroethane) preferably at 0-100 deg.C, hydrolyzing the reaction product, and subsequently extracting off an o-position isomer with an acidic aqueous solution (for example, hydrochloric acid, sulfuric acid or methane sulfonic acid) from the hydrolysate. In the component B, the component(ii)is preferably used in an amount equivalent to the component (i) or in a larger amount than that of the component (i). The component C is preferably used in an amount of 2 to 10 fold moles that of the component (i). The component D is also preferably used in an amount of 0.1-3.0 fold weight that of the component A.
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公开(公告)号：JPH11181075A
公开(公告)日：1999-07-06
申请号：JP34975697
申请日：1997-12-18
Applicant: MITSUI CHEMICALS INC
Inventor： FURUYA MASAYUKI , SHIMIZU KOTARO , WADA MASARU
IPC: C08G63/90 , C08L101/16
Abstract: PROBLEM TO BE SOLVED: To provide a method for isolating a formed polyhydroxycarboxylic acid in a satisfactory form with respect to quality and productivity. SOLUTION: A hydroxycarboxylic acid and/or its oligomer is treated with a haloiminium salt to give a solution of a polyhydroxycarboxylic acid. A reaction solvent/a solvent different from the reaction solvent is removed under reduced pressure while dripping the solution into water/the solvent different from the reaction solvent to give a water slurry solution, which is filtered, washed and dried to isolate the objective polyhydroxycarboxylic acid.
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公开(公告)号：JPH11162649A
公开(公告)日：1999-06-18
申请号：JP32885297
申请日：1997-11-28
Applicant: MITSUI CHEMICALS INC
Inventor： SHIMAMURA TAKEHIKO , ITO NAOTO , NARUSE HIROSHI , WADA MASARU
Abstract: PROBLEM TO BE SOLVED: To provide an organic electroluminescent element which has excellent durability. SOLUTION: In an organic electroluminescent element composed of organic compound with one or more multi-layers between a pair of electrodes, at least one layer contains hole carrier substance expressed by the formula. In the formula, R1 indicates an alkyl radical or an aralkyl radical, R2 , R3 , R4 , R5 , R6 and R7 respectively and independently indicate a hydrogen atom, an alkyl radical, an alkoxy radical or halogen atom, and n indicates 0 or 1.
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Patent Agency Ranking">46.发明专利
公开(公告)号：JPH1149728A
公开(公告)日：1999-02-23
申请号：JP21309497
申请日：1997-08-07
Applicant: MITSUI CHEMICALS INC
Inventor： NARUSE HIROSHI , WADA MASARU , KANEMURA YOSHINOBU
IPC: B01J23/44 , C07B61/00 , C07C209/60 , C07C211/54
Abstract: PROBLEM TO BE SOLVED: To industrially and advantageously obtain the subject compound useful as a positive hole transporting material used for an organic EL element by reacting specific triphenylamines with a specific cyclohexanone in the presence of a hydrogen transfer catalyst. SOLUTION: (B) 4,4',4"-Tris(N-arylamino)triphenylamines of formula I (R is H or an alkyl) are reacted with (C) a cylohexanone (especially 3- methylhexanone) of formula II (R' is H or an alkyl) in an amount of >=3.0 mol which is a theoretical amount base on 1 mol component B in the presence of (A) 0.01-2.0 wt.% hydrogen transfer catalyst (preferably palladium supported on carbon, alumina, etc.), in an amount of 0.01-2.0 wt.% as metal amount based on the charged amount of the component B, and preferably, an acid (e.g. phthalic acid) as dehydrating catalyst at 130-300 deg.C to provide the objective compound of formula III.
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公开(公告)号：JPH1112262A
公开(公告)日：1999-01-19
申请号：JP16359497
申请日：1997-06-20
Applicant: YAMAMOTO CHEMICALS INC , MITSUI CHEMICALS INC
Inventor： NAKAO SATOSHI , MATSUMOTO MANSUKE , NISHIMURA TAKESHI , WADA MASARU , KANEMURA YOSHINOBU
Abstract: PROBLEM TO BE SOLVED: To produce a phthalide compound useful as a color former of a color developing recording material at a short time in high yield by oxidizing a triphenylmethane compound in an aqueous medium in the presence of a specific noble metal compound with an oxidant. SOLUTION: A triphenylmethane compound of formula I (R to R are each an alkyl, or R and R , R and R , and R and R form heterocycles by mutually binding each other with nitrogen atoms) (e.g. 2-[4,4'-bis(dimethylamino) benzhydryl]-5-dimethylaminobenzoic acid) is subjected to an oxidation reaction in an aqueous medium in the presence of a catalyst comprising a noble metal compound selected from nickel, palladium, platinum and silver with an oxidant (e.g. air, oxygen or a mixture thereof) at a temperature of 40-120 deg.C for 3-20 hr under a normal pressure or for 1-6 hr under a pressurized atmosphere to provide the objective phthalide compound of 3,3-bis(4-dimethylaminophenyl)-6- dimethylaminophthalide, etc., of formula II.
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公开(公告)号：JPH10338684A
公开(公告)日：1998-12-22
申请号：JP14962997
申请日：1997-06-06
Applicant: MITSUI CHEMICALS INC , YAMAMOTO CHEMICALS INC
Inventor： NISHIMURA TAKESHI , WADA MASARU , KANEMURA YOSHINOBU , NAWAMOTO SHINZO , HORIUCHI KENICHIRO , MATSUMOTO MANSUKE
Abstract: PROBLEM TO BE SOLVED: To obtain a phthalide compound useful as a coloring agent for coloring recording materials by subjecting triphenylmethane compound to oxidation reaction in the presence of urea. SOLUTION: A triphenylmethane compound of formula II is oxidized with an oxidizing agent in an aqueous solvent in the presence of urea and a metal compound to provide the objective phthalide compound of formula I (R to R are each an alkyl or R and R , R and R and R and R may mutually be connected to form a heterocyclic ring with N). Air, oxygen, hydrogen peroxide or the like is used as the oxidizing agent and copper sulfate or the like is used as the metal compound. Urea is used in an amount of 0.1-4.8 molar ratio based on the compound of formula II and the metal compound is used in an amount of 0.0001-1.0 molar ratio based on the compound of formula II and the reaction is carried out at 40-120 deg.C. The oxidizing agent is used in an equimolar amount or above in the case of oxygen or oxygen-containing gas or in an amount of 1-1.2 mol in the case of hydrogen peroxide based on 1 mol compound of formula II. Thereby, the compound of formula I is obtained in a short time at a low cost in high purity and yield by a simple operation.
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公开(公告)号：JPH10251366A
公开(公告)日：1998-09-22
申请号：JP6059497
申请日：1997-03-14
Applicant: MITSUI CHEMICALS INC
Inventor： FUKUMURA KOUKI , KOJIMA KOUYA , MIZUTA HIDEKI , WADA MASARU
Abstract: PROBLEM TO BE SOLVED: To produce a highly active trimerization catalyst in production of polyisocyanates, useful as a curing agent when producing a polyurethane resin, e.g. a polyurethane coating material or a casting material and having isocyanurate rings. SOLUTION: A combination of potassium fluoride together with one or more compounds selected from (1) a polyethylene oxide compound, (2) a quaternary ammonium salt and (3) a phosphonium compound is used as a catalyst when trimerizing a polyisocyanate partially urethanated with a monomeric polyisocyanate and/or a mono- to a trifunctional alcohol. Furthermore, an organic phosphorus triester or a phenolic hydroxy compound or both are used as a cocatalyst.
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公开(公告)号：JP2008174517A
公开(公告)日：2008-07-31
申请号：JP2007011308
申请日：2007-01-22
Applicant: Mitsui Chemicals Inc , 三井化学株式会社
Inventor： TAKAOKA MASAZUMI , WADA MASARU , MAEKAWA HIROKI
IPC: C07D319/12
Abstract: PROBLEM TO BE SOLVED: To provide a simple method of purification, obtaining a high purity cyclic ester used as a raw material of a high molecular weight polyester, at a high yield.
SOLUTION: This new method for purifying the cyclic ester expressed by formula (1) [wherein, R
1 to R
6 are each the same or different H, or a 1-4C linear or branched alkyl: and (n) is an integer of 1 to 3] is characterized by mixing the cyclic ester expressed by the formula (1) with an isocyanate compound, heating and then distilling.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 待解决的问题：提供简单的纯化方法，以高产率获得用作高分子量聚酯的原料的高纯度环酯。 解决方案：用于纯化由式（1）表示的环状酯的新方法[其中R 1和R 6各自相同或不同H，或 1-4烷基直链或支链烷基，（n）为1〜3的整数]的特征在于将由式（1）表示的环状酯与异氰酸酯化合物混合，加热然后蒸馏。 版权所有（C）2008，JPO＆INPIT
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