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公开(公告)号：DE3888473T2
公开(公告)日：1994-07-07
申请号：DE3888473
申请日：1988-12-06
Applicant: TOSOH CORP
Inventor： MATSUBA TAKAO , KUBO MASASHIGE , KAGAWA TAKUMI , OYAMA KIYOTAKA , KAWABATA KOJI
IPC: C07D209/48 , C08K5/41 , C08K5/34
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公开(公告)号：DE3874496T2
公开(公告)日：1993-02-18
申请号：DE3874496
申请日：1988-12-06
Applicant: TOSOH CORP
Inventor： OKISAKI FUMIO , KUBO MASASHIGE , FUJII SATOSHI , OYAMA KIYOTAKA
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公开(公告)号：DE3781774T2
公开(公告)日：1993-01-28
申请号：DE3781774
申请日：1987-11-09
Applicant: TOSOH CORP
Inventor： SHUYAMA HIDEO , OGAWA TSUKASA , TAKAHASHI MITSURU , HAMADA MICHIYUKI , YOSHIMITSU MITSUAKI , OYAMA KIYOTAKA
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公开(公告)号：DE3870754D1
公开(公告)日：1992-06-11
申请号：DE3870754
申请日：1988-08-03
Applicant: TOSOH CORP
Inventor： KURAUCHI YASUHIRO , AKAZAWA MICHIHIRO , HARADA TSUNEO , OYAMA KIYOTAKA , TOKUDA AKIRA
IPC: C07K5/037 , B01D61/00 , B01D61/44 , B01D61/54 , C07K1/00 , C07K1/14 , C07K1/24 , C07K5/06 , C07K5/072 , C07K5/075 , C08J5/22 , C09K5/06 , C25B3/00
Abstract: A method for purifying a dipeptide ester by electrolysis in an electrolytic cell comprising an anode compartment, a cathode compartment and a central compartment partitioned by anion exchange membranes, which comprises supplying an aqueous dipeptide ester solution containing an inorganic acid to the central compartment defined by said anion exchange membranes, an aqueous solution containing a basic substance or an aqueous electrolyte solution containing a basic substance to the cathode compartment and an aqueous electrolyte solution to the anode compartment, supplying hydroxyl ions from the cathode compartment to the central compartment through the anion exchange membrane to neutralize the aqueous dipeptide ester solution containing the inorganic acid and removing anions of the inorganic acid in the aqueous dipeptide ester solution from the central compartment to the anode compartment through the anion exchange membrane.
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公开(公告)号：DE3473441D1
公开(公告)日：1988-09-22
申请号：DE3473441
申请日：1984-10-09
Applicant: TOSOH CORP
Inventor： OYAMA KIYOTAKA , HARADA TUNEO
IPC: C07C69/65 , B01J23/00 , B01J23/72 , B01J27/00 , B01J27/122 , C07B37/02 , C07B61/00 , C07C51/00 , C07C51/347 , C07C51/353 , C07C51/363 , C07C57/58 , C07C67/00 , C07C67/347 , C07C69/612 , C07C231/00 , C07C231/12 , C07C233/11 , C07C233/13 , C07C253/00 , C07C253/30 , C07C255/32 , C07C255/35 , C07C121/66 , C07C57/30 , C07C103/12
Abstract: A process for producing a halogen-containing ethylbenzene derivative represented by the general formula: (I) where X is a halogen atom, and W is a nitrile group, a carboxyl group, a lower alkoxycarbonyl group or an amidocarbonyl group, which comprises diazotizing aniline with a nitrite in a solution mixture comprising a hydrophilic organic solvent, an aqueous mineral acid solution and a vinyl compound represented by the general formula: CH2=CH-W (II) where W is as defined above, to form a benzenediazonium salt, and reacting the benzenediazonium salt, without isolating it from the reaction system, with said vinyl compound in the presence of halogen ions and a copper compound as a catalyst.
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Patent Agency Ranking
公开(公告)号：CA1331361C
公开(公告)日：1994-08-09
申请号：CA581240
申请日：1988-10-25
Applicant: TOSOH CORP
Inventor： HARADA TSUNEO , FUKUDA KEN-ICHI , SHIMIZU HIROSHI , TOKUDA AKIRA , OYAMA KIYOTAKA
Abstract: A method for purifying a dipeptide ester by electrolysis in an electrolytic cell comprising an anode compartment, a cathode compartment and a central compartment partitioned by ion exchange membranes, which comprises supplying an aqueous dipeptide ester solution containing organic acids to the central compartment defined by anion and cation exchange membranes or by anion exchange membranes and an aqueous electrolyte solution to the cathode and anode compartments, and electrically removing the organic acids from the central compartment to the anode compartment through the anion exchange membrane.
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公开(公告)号：DE3874496D1
公开(公告)日：1992-10-15
申请号：DE3874496
申请日：1988-12-06
Applicant: TOSOH CORP
Inventor： OKISAKI FUMIO , KUBO MASASHIGE , FUJII SATOSHI , OYAMA KIYOTAKA
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公开(公告)号：AU598565B2
公开(公告)日：1990-06-28
申请号：AU7614787
申请日：1987-07-27
Applicant: TOSOH CORP
Inventor： WAKAMATSU HIDETOSHI , IRINO SHIGEAKI , HARADA TSUNEO , TOKUDA AKIRA , OYAMA KIYOTAKA
Abstract: A process for producing dry alpha -L-aspartyl-L-phenylalanine methyl ester having an improved solubility from wet crystals of alpha -L-aspartyl-L-phenylalanine methyl ester having a water content of at least 20% by weight, which comprises drying the wet crystals at a temperature of higher than 50 DEG C to obtain moist crystals having a water content of less than 20 and more than l5% by weight, then drying the moist crystals at a temperature of not higher than 50 DEG C to obtain semi-dry crystals having a water content of less than 5% by weight, and further drying the semi-dry crystals at a temperature of higher than 50 DEG C to obtain dry crystals of alpha -L-aspartyl-L-phenylalanine methyl ester.
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公开(公告)号：DE3888473D1
公开(公告)日：1994-04-21
申请号：DE3888473
申请日：1988-12-06
Applicant: TOSOH CORP
Inventor： MATSUBA TAKAO , KUBO MASASHIGE , KAGAWA TAKUMI , OYAMA KIYOTAKA , KAWABATA KOJI
IPC: C07D209/48 , C08K5/41 , C08K5/34
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公开(公告)号：DE3768460D1
公开(公告)日：1991-04-11
申请号：DE3768460
申请日：1987-12-24
Applicant: TOSOH CORP
Inventor： NAKANO MASAO , SEKIZAWA KAZUHIRO , HIRONAKA TOSHIO , OYAMA KIYOTAKA , ASANO SEIICHI
IPC: B01J29/06 , B01J29/08 , B01J29/50 , B01J29/60 , C07B39/00 , C07B61/00 , C07C17/00 , C07C17/12 , C07C25/02 , C07C67/00 , C10G35/10 , B01J35/10
Abstract: Disclosed in a shaped zeolite catalyst used for liquid phase organic reactions. The shaped zeolite catalyst is composed of substantially spherical particles having a particle diameter substantially in the range of from 70 to 300 mu m, and which has fine pores having a pore volume of 0.4 to 1 cm per gram of the shaped catalyst and a median pore diameter based on the pore volume of 100 to 550nm (1,000 to 5.500 ANGSTROM ).
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