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公开(公告)号：JPH0585963A
公开(公告)日：1993-04-06
申请号：JP31758291
申请日：1991-09-24
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , KANEDA MITSUHIRO , OOMATSUZAWA TAKESHI , TAKAHATA KAZUNORI
Abstract: PURPOSE:To produce 2,6-diethylnaphthalene on an industrial scale at a low cost in high yield by using mordenite as a catalyst and carrying out trans- ethylation using ethylnaphthalene as an ethylation agent as it is. CONSTITUTION:2,6-Diethylnaphthalene is produced by the transethylation of ethylnaphthalene (preferably 1- or 2-ethylnaphthalene) (preferably in liquid phase) using mordenite as a catalyst. The amount of mordenite is 0.001-500wt.% (preferably 0.05-200wt.%) based on ethylnaphthalene and the reaction temperature is 100-450 deg.C (preferably 130-300 deg.C).
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公开(公告)号：JPH0585962A
公开(公告)日：1993-04-06
申请号：JP31758191
申请日：1991-09-24
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , OOMATSUZAWA TAKESHI , KANEDA MITSUHIRO , TAKAHATA KAZUNORI
Abstract: PURPOSE:To obtain the subject compound useful as a raw material for polymer and production raw material for pharmaceuticals and agricultural chemicals in high yield by using a specific faujasite-type zeolite as a catalyst and isomerizing a mixed dialkylnaphthalene in high efficiency. CONSTITUTION:A 2,6-dialkylnaphthalene is produced by isomerizing a dialkylnaphthalene of formula (Naph is naphthalene ring; R is methyl or ethyl; R is ethyl or isopropyl) by using a catalyst consisting of a proton-containing faujasite-type zeolite or a faujasite-type zeolite produced by substituting a part of the proton with alkali metal ion or alkaline-earth metal ion (especially preferably Y-type faujasite-type zeolite, particularly super-stable Y-type faujasite-type zeolite). The catalyst is e.g. protonic super-stable Y-type zeolite or proton- barium-type super-stable Y-type zeolite).
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公开(公告)号：JPH0561149A
公开(公告)日：1993-03-12
申请号：JP25656991
申请日：1991-10-03
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KAWAI KOJI , TANAKA MICHIO , FUJITA TERUNORI , KISHIKAWA YOSHIKI , NITAHARA MASATOSHI , TARUMOTO HIROMASA , KAWAMURA MASATO , MIKI HISAYA
Abstract: PURPOSE:To obtain the color developing recording material capable of developing practicable sufficiently intense color immediately after making color developing operation and enabling readout of information through instruments using lights of all the wavelengths by incorporating a specified diamine derivative and an oxidant, and an organic acid material solid at normal temperature. CONSTITUTION:The recording material contains the oxidant, the organic acidic material solid at normal temperature, and the diamine derivative represented by formula I in which each of A and B is, independently, aryl; X is arylene, and each of R and R is, independently, H, lower alkyl, aryl, or aralkyl. It is preferred that the oxidant is a quinoid type electron receptor, thus permitting practicable sufficiently intense color to be developed and the color developing part to have strong absorption in the wide region from visible to near infra wavelengths, and therefore, readout of information to be made by instruments using all the wavelengths.
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公开(公告)号：JPH04266833A
公开(公告)日：1992-09-22
申请号：JP2719891
申请日：1991-02-21
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , TAKAHATA KAZUNORI , ONO HIROYASU
Abstract: PURPOSE:To produce an ethylated naphthalene in high yield while suppressing tar formation of naphthalenes by ethylation of a naphthalene with ethylene as an ethylating agent in the presence of extremely stable Y zeolite. CONSTITUTION:In production of an ethylated naphthalene shown by the formula (Et)n-Naph-(R)m (in the formula, Naph shows naphthalene ring, R shows hydrogen, methyl group or isopropyl group, Et shows ethyl group, m shows 0-7 integer and n shows 1-8 integer with proviso that 1
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公开(公告)号：JPH0443699B2
公开(公告)日：1992-07-17
申请号：JP18321583
申请日：1983-10-03
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , ISHIGURO MASAHARU , TAKAHATA KAZUNORI , TANIGUCHI KATSUO
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Patent Agency Ranking
公开(公告)号：JPH04120029A
公开(公告)日：1992-04-21
申请号：JP24184090
申请日：1990-09-11
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KANEDA MITSUHIRO , FUJITA TERUNORI , ONO HIROYASU , TAKAHATA KAZUNORI
IPC: B01J27/125 , C07B61/00 , C07C6/12 , C07C15/24
Abstract: PURPOSE:To obtain the subject compound in high selectivity by subjecting naphthalene or 2-methylnaphthalene to methylation by using aluminum chloride (or bromide) as a catalyst and polymethylbenzene as a methylation agent in the presence of an aromatic nitro compound. CONSTITUTION:Naphthalene or 2-methylnaphthalene is subjected to methylation with using aluminum chloride or aluminum bromide as a catalyst and polymethylbenzene, especially hexamethylbenzene as a methylation agent in the presence of an aromatic nitro compound, preferably nitrobenzene or nitronaphthalene containable of alkyl group, especially nitrobenzene, 2.6- dimethylnitrobenzene or nitromesitylene to afford 2,6-dimethylnaphthalene as a precursor of 2,6-naphthalene dicarboxylic acid useful as, e.g. a raw material of polyester from a reaction mixture in high selectivity as possible as separating by crystallization.
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公开(公告)号：JPH0499734A
公开(公告)日：1992-03-31
申请号：JP21676390
申请日：1990-08-16
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , ONO HIROYASU , TAKAHATA KAZUNORI
Abstract: PURPOSE:To improve the selectivity and yield of the title substance by employing active china clay or a lamellar compound exchanged with prescribed ions, when an alpha-alkylnaphthalene not having substituent at at least one beta-posi tion is isomerized under a liquid phase condition to produce the subject sub stance. CONSTITUTION:When alpha-alkylnaphthalene not having substituent at at least one beta position and having CH3, C2H5, isopropyl or cyclohexyl group (e.g. 1,6- dimethylnaphthalene) at least one alpha-position is isomerized under a liquid phase condition to produce the subject substance (e.g. 2,6-dimethylnaphthalene), active china clay or a lamellar compound (e.g. montmorillonite or taeniolite) exchanged with exchangeable ions selected from protons, Al, Fe, etc., or multi-nuclear hydroxyl ions selected from Al, Zr, Fe and Cr is employed as the catalyst.
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公开(公告)号：JPH0390039A
公开(公告)日：1991-04-16
申请号：JP22701089
申请日：1989-08-31
Applicant: MITSUI PETROCHEMICAL IND
Inventor： ONO HIROYASU , FUJITA TERUNORI
IPC: B01J27/125 , C07B61/00 , C07C6/12 , C07C15/14
Abstract: PURPOSE:To obtain the subject substances in high selectivity under relatively mild conditions by reacting diphenyl and/or 4-methyldiphenyl with penta-an/or hexamethylbenzene in the presence of a catalyst and carrying out transmethylation. CONSTITUTION:One mol diphenyl and/or 4-methyldiphenyl and 1.5-20mol penta- and/or hexamethylbenzene are reacted in the presence of a catalyst, such as a Lewis acid, protonic acid or solid acid, at 50-150 deg.C to carry out transmethylation and provide the subject substances. The reaction is normally carried out in a solvent, such as 1,2-dichloroethane or nitrobenzene. AlCl3 is especially preferred as the catalyst without causing corrosion in apparatus. The 4,4'-dimethyldiphenyl is useful as a raw material for producing 4,4'- diphenyldicarboxylic acid which is a raw material for polyester resins.
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公开(公告)号：JPH0372435A
公开(公告)日：1991-03-27
申请号：JP20768589
申请日：1989-08-09
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , ONO HIROYASU
Abstract: PURPOSE:To readily obtain the title compound useful as a raw material for polymer in high selectivity and in high yield by reacting a naphthalene with an alkylating agent such as alcohol by the use of an ion exchange type lamellar compound having excellent heat resistance as a catalyst. CONSTITUTION:A naphthalene shown by formula I (R is alkyl, cycloalkyl or phenyl; (n) is 0 or 1) is reacted with an alcohol or olefin as alkylating agent preferably in a solvent in the presence of an ion exchange type lamellar compound catalyst to give the objective compound shown by formula II (R' is alkyl or cycloalkyl; (m) is 2 when (n) is 0; (m) is 1 when (m) is 2). The catalytic compound usually has a configuration of having a great number of accumulated lamellar clay and containing ion components between the layers of the lamellar clay and tetrasilicic mica, taeniolite, montmorilonite, etc., wherein ions are exchanged with aluminum ion, gallium ion, etc., are used.
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公开(公告)号：JPH02300141A
公开(公告)日：1990-12-12
申请号：JP11908089
申请日：1989-05-12
Applicant: MITSUI PETROCHEMICAL IND
Inventor： TANIGUCHI KATSUO , ONO HIROYASU , FUJITA TERUNORI
IPC: B01J27/125 , C07B61/00 , C07C6/12 , C07C15/24
Abstract: PURPOSE:To carry out reaction in the liquid phase using a monocyclic compound having a specific number or more of CH3 groups in the benzene ring as an alkylating agent in trans-methylating naphthalene and/or monomethylnaphthalene with the alkylating agent and providing the subject substance. CONSTITUTION:Naphthalene or monomethylnaphthalene or body are reacted with a monocyclic aromatic hydrocarbon (preferably penta- and hexamethylbenzenes) having >=5 CH3 groups introduced into the benzene ring as an alkylating agent in the liquid phase at
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