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公开(公告)号：JPH08311023A
公开(公告)日：1996-11-26
申请号：JP3356196
申请日：1996-02-21
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , MATSUI NARIKAZU , TAKAI TOSHIHIRO , MATSUOKA HIDETO , KAGAYAMA AKISHI , KURODA HIROSHI , ISHIBASHI MASAYASU , IWASAKI HIROSHI
IPC: C07D487/22 , B01J31/22 , C07B61/00 , C07C407/00 , C07C409/10 , C07D255/02 , C07D257/02 , C07D259/00 , C07D471/08
Abstract: PURPOSE: To obtain the subject compound at a high reaction rate, high conversion and high selectivity and in high concentration with suppressing decomposition of the product without by-product such as formic acid or acetic acid by using a specific catalyst and oxidizing an aryl alkyl hydrocarbon with an oxygen-containing gas. CONSTITUTION: (A) A compound of formula II (P and Q are each H or an alkyl; (x) is 1-3; Ar is an (x)-valued aromatic hydrocarbon group) is oxidized by (B) an oxygen-containing gas in the presence of (C) a transition metal complex catalyst containing a cyclic multifunctional amine compound having at least three N in a molecular chain generating a ring as a ligand e.g. a complex of formula I [A is a 1-6C alkylene, phenylene, naphthylene or pyridinediyl; R is H, an alkyl, (alkyl)aryl, etc.; M is a (+a) valued transition metal ion as a central metal ion; X is a (-b)-valued pair ion stable to oxidation; a and n are each 1-4; b>0; n=a/b; m is 0 or 1]}.
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公开(公告)号：JPH05331117A
公开(公告)日：1993-12-14
申请号：JP27628992
申请日：1992-10-14
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , KAWAI KOJI , NITAHARA MASATOSHI , KISO YOSHIHISA
IPC: C09B57/00 , C07C217/92 , C09K3/00
Abstract: PURPOSE:To obtain a new dialkoxyphenylenediamine derivative, capable of providing color development of a practically sufficient intensity just after color developing operation and a color developed part having strong absorption within a wide range of a visible to a near infrared regions, and having high stability. CONSTITUTION:The dialkoxyphenylenediamine derivative of formula I (R to.R are l-4C alkyl; R is H or l-4C alkyl). This compound can readily be synthesized by subjecting a dihydric phenol of formula II and p-phenylenediamine or alkoxyanilines of formula IV (R is alkyl) and hydroquinone to dehydrating condensation and then alkylating the resultant compound of formula III or IV. Furthermore, since this compound has the effects and stability such as light and moisture resistance, it is useful for reading information with apparatuses at all the wavelengths such as bar code readers capable of carrying out the reading in a near infrared region and utilizing semiconductor laser or apparatuses performing the reading in a visible region.
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公开(公告)号：JPH0564957A
公开(公告)日：1993-03-19
申请号：JP25421991
申请日：1991-09-06
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KISHIKAWA YOSHIKI , NITAHARA MASATOSHI , KAWAI KOJI , FUJITA TERUNORI , MIKI HISAYA
Abstract: PURPOSE:To provide a color-forming recording material which causes color formation having practically sufficient strength immediately after a coloring process and wherein a coloring area has strong absorption over a wide range from visible region to near infrared region by including therein a compound represented by a specific formula, oxidizing agent, and acidic substance. CONSTITUTION:Dyestuff having very strong absorption power and solidness in the range from visible ray region to near-infrared ray region can be prepared by including therein a compound represented by a formula I (A: monovalent aromatic group; B and X: bivalent aromatic groups, independent of each other; Y: -O-, -NH-, or -N lower arkyl-; R and R : hydrogen atoms, lower alkyl groups, aryl groups or aralkyl groups, independent of each other; R : alkyl groups, aryl groups or aralkyl groups), quinoid type electron accepting compound, and aromatic carboxylic acid, and by bringing these materials into contact with one another. Consequently, a color-forming recording material which can be read out by semiconductor laser can be obtained.
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公开(公告)号：JPH04266831A
公开(公告)日：1992-09-22
申请号：JP2626891
申请日：1991-02-20
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , TAKAHATA KAZUNORI , ONO HIROYASU
Abstract: PURPOSE:To produce diethylnaphthalene in high yield by transalkylation reaction while suppressing tar formation of raw material naphthalenes. CONSTITUTION:A naphthalene shown by the formula NapH-(Et)m (in the formula, Naph shows naphthalene ring, Et shows ethyl group and m shows O or 1 integer) is reacted with a naphthalene shown by the formula Naph-(Et)n (in the formula, Naph and Et are shown as above and n is 1-8 integer) in the presence of extremely stable Y zeolite.
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公开(公告)号：JPH04139134A
公开(公告)日：1992-05-13
申请号：JP25992090
申请日：1990-09-27
Applicant: MITSUI PETROCHEMICAL IND
Inventor： KANEDA MITSUHIRO , FUJITA TERUNORI , KISO YOSHIHISA , TAKAHATA KAZUNORI
IPC: B01J21/12 , B01J21/16 , B01J27/125 , B01J29/08 , C07B61/00 , C07C2/68 , C07C2/70 , C07C15/02 , C07C15/06 , C07C15/073 , C07C15/08 , C07C15/24 , C07C41/30 , C07C43/205 , C07C43/263 , C07C45/68 , C07C49/317
Abstract: PURPOSE:To readily obtain an alkyl aromatic compound which is difficult to provide by conventional alkylation by reacting an (alkyl-substituted) aromatic compound with a dialkyl carbonate in the presence of an acid catalyst and then alkylating the aforementioned compound at a high conversion rate. CONSTITUTION:An unsubstituted or alkyl-substituted aromatic compound is allowed to react with a dialkyl carbonate, preferably dimethyl, diethyl or dipropyl carbonate in the presence of an acid catalyst, e.g. a solid acid such as an aluminum halide, various zeolites or silica alumina to afford an alkyl aromatic compound. According to the aforementioned method, the alkylated position is different from that in conventional methods. For example, 1,2- dimethylnaphthalene accounts for most of the products by alkylating 2- methylnaphthalene with an alkyl halide, whereas the amount of the 2,7-isomer is increased according to the abovementioned method.
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Patent Agency Ranking
公开(公告)号：JPH04103543A
公开(公告)日：1992-04-06
申请号：JP22162590
申请日：1990-08-23
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , TAKAHATA KAZUNORI
Abstract: PURPOSE:To obtain the subject substances by methylating a 1-lower alkylnaphthalene using a layer compound in which activated clay or exchangeable cations are exchanged with protons, ions such as Al or polynuclear hydroxide ions such as Al or Zr as a catalyst. CONSTITUTION:A 1-lower alkylnaphthalene (e.g. 1-methylnaphthalene or 1- ethylnaphthalene) is reacted with a methylating agent composed of hexamethylbenzene or pentamethylbenzene using activated clay or an ion exchange type layer compound as a catalyst to produce the subject substances. A layer compound (e.g. montmorillonite or saponite) exchanged with protons, ions such as Al, Fe, Ga or Ti or polynuclear hydroxide ions such as Al, Zr, Fe or Cr is used as the ion exchange type layer compound. The amount of the catalyst used is 0.01-60 pts. wt. based on 100 pts.wt. raw material and the reaction temperature is 80-280 deg.C.
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公开(公告)号：JPH04103542A
公开(公告)日：1992-04-06
申请号：JP21952790
申请日：1990-08-20
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , TAKAHATA KAZUNORI
Abstract: PURPOSE:To produce the title substance in good yield by isomerizing a mixed alkylnaphthalene, enhancing the concentration of a 1,5-dialkyl(R )-3,7-dralkyl(R ) naphthalene and dealkylating the groups (R ) of the resultant compound. CONSTITUTION:A compound expressed by the formula (R is methyl or ethyl; R is isopropyl, sec.-butyl or tert.-butyl) is isomerized and the alkyl groups (R ) are then subjected to dealkylation to produce the title substance. The reaction temperature is 50-300 deg.C in the case of the liquid phase and 200-400 deg.C in the case of the vapor phase. The compound expressed by the formula is produced by reacting dimethylnaphthalene, diethylnaphthalene or methylethylnahthalene with an alkylating agent such as isopropanol, propylene or isobutene in the presence of a compound oxide such as silica alumina, a solid superstrong acid containing sulfuric acid radicals on iron oxide, a liquid superstrong acid such as HF/BF3, a metallic ion exchanger of zeolites, activated clay, etc., as a catalyst. The above-mentioned catalyst is also used for isomerization/alkylation.
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公开(公告)号：JPH03215439A
公开(公告)日：1991-09-20
申请号：JP482890
申请日：1990-01-12
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , TAKAHATA KAZUNORI
IPC: B01J21/08 , B01J21/12 , B01J21/16 , B01J27/125 , B01J31/04 , B01J31/08 , C07B61/00 , C07C6/12 , C07C15/02
Abstract: PURPOSE:To prepare a mono secondary alkyl aromatic compound in high conversion and high selectivity by transalkylating an aromatic compound with a polyalkylbenzene having four or more substituents including one or more bulky secondary alkyl groups as an alkylating agent. CONSTITUTION:An aromatic compound (e.g. 2-methylnaphthalene) is transalkylated with a compound of the formula (R is 3-5C secondary alkyl; R is 1-5C primary alkyl; n+m>=4) (e.g. isopropylpentamethylbenzene) as an alkylating agent to provide a mono secondary alkyl aromatic compound (e.g. moniosopropyl-2-methylnaphthalene). The mole ratio of the aromatic compound/ alkylating agent is preferably 0.1-3 and the reaction is performed in the presence of a catalyst (protonic acid or Lewis acid) at -40 to 150 deg.C for 10min to 8 hours.
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公开(公告)号：JPH03169832A
公开(公告)日：1991-07-23
申请号：JP28533889
申请日：1989-10-31
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , TAKAHATA KAZUNORI
IPC: B01J21/16 , B01J27/08 , C07B61/00 , C07C37/14 , C07C37/16 , C07C39/06 , C07C39/08 , C07C39/14 , C07C39/17 , C07C41/30 , C07C43/205 , C07C43/225 , C07C43/263 , C07C43/29
Abstract: PURPOSE:To obtain the title substance in high selectivity and yield by reacting phenols or naphthols with an alcohol or olefin used as an alkylating agent. CONSTITUTION:A compound expressed by formula I or formula II (X is H, alkyl, phenyl, etc.; R is alkyl, phenyl or halogen; (m) is 1 or 2; when (m) is 1, (n) is 0-4 and when (m) is 2, (n) is 0-3) is made to react with an alcohol or olefin at 80-250 deg.C to provide the compound expressed by formula III or formula IV (R' is alkyl or cycloalkyl; (p) is 1 or 2; (q) is 0-4). An ion exchange type layered compound includes e.g. tetrasilicic mica or tenorite in which >=5mol% and
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公开(公告)号：JPH0363285A
公开(公告)日：1991-03-19
申请号：JP19981989
申请日：1989-08-01
Applicant: MITSUI PETROCHEMICAL IND
Inventor： FUJITA TERUNORI , TANIGUCHI KATSUO , YOKOYAMA KEIICHI
Abstract: PURPOSE:To obtain the subject compounds useful as an intermediate for medicines, agricultural chemicals, etc., in high yield under mild reactional conditions by reacting hydrosilanes with a hydroxyl-containing compound using an alkali metal compound as a catalyst. CONSTITUTION:Hydrosilanes expressed by formula I (R -R represent H, halogen, alkyl, alkoxy, alkenyl, alkynyl, aryl or organosilicon group) are reacted with a hydroxyl-containing compound by using an alkali metal compound expressed by formula II (M represents alkali metal; A represents boron or aluminum; R alkyl or aryl; (n) and (m) are 0-4, (n+m)=4) [example; LiBH4, LiAlH4 or LiBH3 (OCH3)] as a catalyst to afford the objective compounds.
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