公开(公告)号：JPS5493021A

公开(公告)日：1979-07-23

申请号：JP15568177

申请日：1977-12-26

Applicant: MITSUI TOATSU CHEMICALS

Inventor： TORISU YASUYOSHI ,  KAWAKAMI MICHIO ,  IWAMURA AKIO ,  MOMIJI SEISHICHIROU

IPC: C09B5/48

Abstract: PURPOSE:The reaction of aminoanthraquinone with an alkaline condensation agent is conducted in the presence of a specific amount of dimethylsolfoxide to produce high-quality title compound in high yield. CONSTITUTION:The reaction between 1-aminoanthraquinone and an alkaline condensation agent as potassium hydroxide is conducted in the presence of dimethylsulfoxide in an amount of 0.1-2.5 times the quantity of the aminoanthraquinone and an oxidizing agent, when necessary, an inert solvent at 80-140 C. EFFECT:Troublesome recovery process can be eliminated since the amount of dimethylsulfoxide employed is little and further the amount of caustic alkali used can be largely reduced.

公开(公告)号：JPS5429336A

公开(公告)日：1979-03-05

申请号：JP9410977

申请日：1977-08-08

Applicant: MITSUI TOATSU CHEMICALS

Inventor： AIGA HIROSHI ,  KAWAKAMI MICHIO ,  TSUKAHARA RIYOUICHI ,  UCHIDA RIYUUJI ,  KAMICHI NOBUO

IPC: C09B1/14 ,  C09B1/32 ,  C09B1/503 ,  C09B1/514 ,  C09B1/54 ,  C09B1/56 ,  C09B1/58

Abstract: PURPOSE:An anthraquinone compound of formula I.F is anthraquinonyl; X is O, S, NH; m is 0, 1; R is H, lower alkyl, lower alkoxyalkyl; n is 1, 2; benzene ring B may be substituted by halogen atom, lower alkyl, alkoxygroup.).

公开(公告)号：JPS53144558A

公开(公告)日：1978-12-15

申请号：JP5883977

申请日：1977-05-23

Applicant: MITSUI TOATSU CHEMICALS

Inventor： MORINAKA RIYOUICHI ,  KAWAKAMI MICHIO ,  IWAMURA AKIO ,  YOSHIURA KOUICHI

IPC: C07C37/88 ,  C07C27/00 ,  C07C39/14 ,  C07C67/00

Abstract: PURPOSE:To protect coloring of beta-naphthol by addition org. phosphorous acids (>=0.001 %, pref. 0.005-0.1%) such as tris(monylphenyl)phosphite.

公开(公告)号：JPS532680A

公开(公告)日：1978-01-11

申请号：JP7311176

申请日：1976-06-23

Applicant: MITSUI TOATSU CHEMICALS

Inventor： AIGA HIROSHI ,  KAWAKAMI MICHIO

IPC: C09B29/039 ,  C09B29/08 ,  C09B29/09 ,  D06P1/16 ,  D06P1/18

公开(公告)号：JPS52111550A

公开(公告)日：1977-09-19

申请号：JP2706376

申请日：1976-03-15

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YOSHIURA KOUICHI ,  KAWAKAMI MICHIO ,  IWAMURA AKIO ,  SAKAI TSUNEHIRO

IPC: C07C205/47 ,  C07C67/00 ,  C07C201/00

Abstract: PURPOSE:Dinitroanthraquinone is safely prepared without causing an evironmental pollution by the nitration of anthraquinone with a mixed acid as a nitrating agent in chlorodinitrobenzene as a solvent.

公开(公告)号：JPS5214732A

公开(公告)日：1977-02-03

申请号：JP9006375

申请日：1975-07-25

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YOSHIURA KOUICHI ,  KAWAKAMI MICHIO ,  IWAMURA AKIO ,  SAKAI TSUNEHIRO

IPC: C07C205/47 ,  C07C67/00 ,  C07C201/00 ,  C07C205/06

Abstract: PURPOSE:Nitration process to prepare industrially 1-nitroanthraquinone and dinitrotoluene.

公开(公告)号：JPS528032A

公开(公告)日：1977-01-21

申请号：JP8395475

申请日：1975-07-10

Applicant: MITSUI TOATSU CHEMICALS

Inventor： FUJII SHIROU ,  NAKAHARA MASATO ,  KAWAKAMI MICHIO

IPC: C09B1/24 ,  C07C67/00 ,  C07C301/00 ,  C07C303/04 ,  C07C309/53

Abstract: PURPOSE:To prepare 1,4-diaminoanthraquinone-2-sulfonic acid dyeing wool in violet in a high yield by reacting leuco-1, 4-diaminoanthraquinone with chlorosulfonic acid.

公开(公告)号：JPS6036516B2

公开(公告)日：1985-08-21

申请号：JP9398581

申请日：1981-06-19

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KUNIHIRO NAONOBU ,  KAWAKAMI MICHIO ,  IZUMI MICHIZO ,  TANOE TOSHIRO

IPC: D06P5/12 ,  D06P5/13

公开(公告)号：JPS6033381B2

公开(公告)日：1985-08-02

申请号：JP9953178

申请日：1978-08-17

Applicant: MITSUI TOATSU CHEMICALS

Inventor： MORI HIDETOSHI ,  KAWAKAMI MICHIO ,  YOSHIURA KOICHI ,  FUJII SHIRO ,  NAKAMURA KATSUJI

IPC: C09B1/22 ,  C07C225/34

公开(公告)号：JPS5859971A

公开(公告)日：1983-04-09

申请号：JP12968482

申请日：1982-07-27

Applicant: MITSUI TOATSU CHEMICALS

Inventor： AIGA HIROSHI ,  KAWAKAMI MICHIO

IPC: C07D215/04 ,  C07D215/20 ,  C09B25/00

Abstract: PURPOSE:To obtain titled compound in high purity and yield, by condensing 3- hydroxy-2-methylcinchonic acid with phthalic anhydride, etc. in tetramethylene sulfone as a solvent, and brominating the resultant compound without separation, etc. CONSTITUTION:3-Hydroxycinchonic acid is condensed with phthalic anhydride or trimellitic acid anhydride in tetramethylene sulfone solvent to give 3-hydroxyquinophthalone or a compound of formulaI. The former without separation is then brominated to give 4-bromo-3-hydroxyquinophthalone of formulaII. Alternatively, the compound of formulaI is subjected to the desalting or acid chloride forming reaction to esterify methyl cellosolve or ethyl cellosolve and afford the aimed 3-hydroxyquinophthalone compound of formula III (R is CH3 or C2H5). USE:A dyeing material for fibers and coloring material for resins.