GB1374341A - Process for the production of 1-nitroanthraquinone substantially free from dinitroanthraquinone - Google Patents

Process for the production of 1-nitroanthraquinone substantially free from dinitroanthraquinone

Info

Publication number
GB1374341A
GB1374341A GB647872A GB647872A GB1374341A GB 1374341 A GB1374341 A GB 1374341A GB 647872 A GB647872 A GB 647872A GB 647872 A GB647872 A GB 647872A GB 1374341 A GB1374341 A GB 1374341A
Authority
GB
United Kingdom
Prior art keywords
dinitroanthraquinone
nitroanthraquinone
production
substantially free
free
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB647872A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sandoz AG
Original Assignee
Sandoz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sandoz AG filed Critical Sandoz AG
Publication of GB1374341A publication Critical patent/GB1374341A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB647872A 1971-02-16 1972-02-11 Process for the production of 1-nitroanthraquinone substantially free from dinitroanthraquinone Expired GB1374341A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH225171A CH554308A (de) 1971-02-16 1971-02-16 Verfahren zur herstellung von dinitroanthrachinon-freiem 1-nitroanthrachinon.

Publications (1)

Publication Number Publication Date
GB1374341A true GB1374341A (en) 1974-11-20

Family

ID=4229395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB647872A Expired GB1374341A (en) 1971-02-16 1972-02-11 Process for the production of 1-nitroanthraquinone substantially free from dinitroanthraquinone

Country Status (7)

Country Link
US (1) US3798244A (enExample)
JP (1) JPS5432010B1 (enExample)
CH (1) CH554308A (enExample)
DE (1) DE2206960B2 (enExample)
FR (1) FR2125887A5 (enExample)
GB (1) GB1374341A (enExample)
IT (1) IT948535B (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE794823A (fr) * 1972-02-01 1973-07-31 Sandoz Sa Procede de purification de la 1-nitroanthraquinone
DE2248990A1 (de) * 1972-10-06 1974-04-11 Bayer Ag Verfahren zur herstellung von l-nitroanthrachinon
DE2256644C2 (de) * 1972-11-18 1983-10-20 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von reinem 1-Nitro-anthrachinon
DE2259074C3 (de) * 1972-12-02 1982-04-22 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von praktisch 1,5-Dinitro-anthrachinon-freiem 1-Nitro-anthrachinon
DE2552560A1 (de) * 1974-12-05 1976-06-10 Sandoz Ag Verfahren zum reinigen von l-nitroanthrachinon
CN102746692B (zh) * 2012-06-18 2014-04-23 绍兴奇彩化工有限公司 一种分散蓝2bln的制备方法
CN102746691A (zh) * 2012-06-18 2012-10-24 绍兴奇彩化工有限公司 分散蓝2bln母液分离技术

Also Published As

Publication number Publication date
DE2206960A1 (de) 1972-08-31
DE2206960B2 (de) 1976-05-06
IT948535B (it) 1973-06-11
US3798244A (en) 1974-03-19
JPS5432010B1 (enExample) 1979-10-11
FR2125887A5 (enExample) 1972-09-29
CH554308A (de) 1974-09-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee