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公开(公告)号：JPS56159378A
公开(公告)日：1981-12-08
申请号：JP6279680
申请日：1980-05-14
Applicant: MITSUI TOATSU CHEMICALS
Inventor： KAWAKAMI MICHIO , KUNINOBU HIROMASA , TANOUE TOSHIROU
IPC: D06P5/12
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公开(公告)号：JPS5527144A
公开(公告)日：1980-02-27
申请号：JP9953178
申请日：1978-08-17
Applicant: MITSUI TOATSU CHEMICALS
Inventor： MORI HIDETOSHI , KAWAKAMI MICHIO , YOSHIURA KOUICHI , FUJII SHIROU , NAKAMURA KATSUJI
IPC: C09B1/22 , C07C225/34
Abstract: PURPOSE:To obtain the title compound useful as dye intermediates readily and safely in high quality and purity, by partially oxidizing 1-nitroanthraquinone containing dinitro derivatives hydrogenated under specific conditions. CONSTITUTION:1-Nitroanthraquinone containing dinitro anthraquinones or 1- amino-anthraquinone containing diaminoanthraquinones is hydrogenated in the presence of a catalyst, e.g. Pd supported on a carrier, and a base in water or its mixture with an organic solvent at 10-80 deg.C to give 1-amino-and diaminoanthrahydroquinone. After removing the catalyst, 1-amino-anthraquinone is added to the reaction mixture to oxidize soluble diaminoanthrahydroquinones partially into insoluble diaminoanthraquinones, which are eliminated. The reaction mixture is oxidized with an oxidizing agent to give the title compound.
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公开(公告)号：JPS5442480A
公开(公告)日：1979-04-04
申请号：JP10590777
申请日：1977-09-05
Applicant: MITSUI TOATSU CHEMICALS
Inventor： AIGA HIROSHI , KAWAKAMI MICHIO , TSUKAHARA RIYOUICHI , UCHIDA RIYUUJI , KAMICHI NOBUO
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公开(公告)号：JPS5438333A
公开(公告)日：1979-03-22
申请号：JP10416177
申请日：1977-09-01
Applicant: MITSUI TOATSU CHEMICALS
Inventor： AIGA HIROSHI , KAWAKAMI MICHIO , TSUKAHARA RIYOUICHI , UCHIDA RIYUUJI , SONODA KOUICHI
Abstract: PURPOSE:An azo compound of formula I [D is an aromatic or heterocyclic group of an acid group which makes the compound water-soluble; Y is H, alkyl, alkoxy, Cl, Br, aryloxy, cyclohexyloxy; Z is H, alkyl, alkoxy, Cl, Br, acylamino; R1 is H8 (substituted) alkyl, aryl, group II(R2 is (substituted) alkyl, aryl; n is 2, 3)].
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Patent Agency Ranking35.发明专利
公开(公告)号：JPS5422440A
公开(公告)日：1979-02-20
申请号：JP8729677
申请日：1977-07-22
Applicant: MITSUI TOATSU CHEMICALS
Inventor： AIGA HIROSHI , KAWAKAMI MICHIO , TSUKAHARA RIYOUICHI , UCHIDA RIYUUJI , SONODA KOUICHI
IPC: C09B31/062 , C09B31/06 , C09B31/08 , C09B43/28 , D06P1/18
Abstract: PURPOSE:Disazo compounds of formula I [benzene nuclei A and B may have no substituent or be substituted with nitro, cyano, lower alkyl or so and nucleus B may be naphthalene nucleus; R1 is lower alkyl, lower alkoxyphenyl; R2 is cyanoethyl, lower alkyl].
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公开(公告)号：JPS5419958A
公开(公告)日：1979-02-15
申请号：JP8355077
申请日：1977-07-14
Applicant: MITSUI TOATSU CHEMICALS
Inventor： SAKAI TSUNEHIRO , KAWAKAMI MICHIO , YOSHIURA KOUICHI , FUJII SHIROU , NAKAMURA KATSUJI
IPC: C07C205/47 , C07C67/00 , C07C201/00
Abstract: PURPOSE:The nitration of anthraquinone in sulfuric acid is conducted in the presence of 0.01 - 0.05 volume part, per 1 weight part of anthraquinone, of a halogenated hydrocarbon at 0 - 60 deg.C to produce high-purity title compound in high yield.
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公开(公告)号：JPS53144559A
公开(公告)日：1978-12-15
申请号：JP5884077
申请日：1977-05-23
Applicant: MITSUI TOATSU CHEMICALS
Inventor： MORINAKA RIYOUICHI , KAWAKAMI MICHIO , IWAMURA AKIO , YOSHIURA KOUICHI
Abstract: PURPOSE:To prepare beta-naphthol having stability to coloring and low content of alpha-naphtol by dissolving beta-naphthol in water contg. an org. acid or inotg acid at >=90 deg.C, followed by crystallization on cooling, or by treatment of fine particle of the beta-naphthol with the acidic water at room temp.
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公开(公告)号：JPS5386884A
公开(公告)日：1978-07-31
申请号：JP153178
申请日：1978-01-12
Applicant: MITSUI TOATSU CHEMICALS
Inventor： AIGA HIROSHI , KAWAKAMI MICHIO , SAKAI KATSUYA , UCHIDA RIYUUJI , KAMICHI NOBUO
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公开(公告)号：JPS532681A
公开(公告)日：1978-01-11
申请号：JP7606876
申请日：1976-06-29
Applicant: MITSUI TOATSU CHEMICALS
Inventor： AIGA HIROSHI , KAWAKAMI MICHIO
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