DE3337675C2 - - Google Patents

Info

Publication number
DE3337675C2
DE3337675C2 DE19833337675 DE3337675A DE3337675C2 DE 3337675 C2 DE3337675 C2 DE 3337675C2 DE 19833337675 DE19833337675 DE 19833337675 DE 3337675 A DE3337675 A DE 3337675A DE 3337675 C2 DE3337675 C2 DE 3337675C2
Authority
DE
Germany
Prior art keywords
aqueous
reduction
formaldehyde
catalyst
mononitroviolanthrone
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 - Lifetime
Application number
DE19833337675
Other languages
German (de)
English (en)
Other versions
DE3337675A1 (de
Inventor
Paul Muenchenstein Ch Schmutz
Hans-Joerg Dr. Reinach Ch Angliker
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.)
Novartis AG
Original Assignee
Ciba Geigy 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 Ciba Geigy AG filed Critical Ciba Geigy AG
Publication of DE3337675A1 publication Critical patent/DE3337675A1/de
Application granted granted Critical
Publication of DE3337675C2 publication Critical patent/DE3337675C2/de
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B3/00Dyes with an anthracene nucleus condensed with one or more carbocyclic rings
    • C09B3/22Dibenzanthrones; Isodibenzanthrones
    • C09B3/30Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE19833337675 1982-10-19 1983-10-17 Verfahren zur herstellung von monoaminoviolanthron Granted DE3337675A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH608482A CH653987A5 (de) 1982-10-19 1982-10-19 Verfahren zur herstellung von monoaminoviolanthron.

Publications (2)

Publication Number Publication Date
DE3337675A1 DE3337675A1 (de) 1984-04-26
DE3337675C2 true DE3337675C2 (en, 2012) 1992-01-02

Family

ID=4304005

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833337675 Granted DE3337675A1 (de) 1982-10-19 1983-10-17 Verfahren zur herstellung von monoaminoviolanthron

Country Status (2)

Country Link
CH (1) CH653987A5 (en, 2012)
DE (1) DE3337675A1 (en, 2012)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102660130B (zh) * 2012-04-19 2014-05-07 徐州开达精细化工有限公司 生产还原直接黑bcn原染料的方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073849A (en) * 1959-11-25 1963-01-15 Allied Chem Process for producing direct black vat dyestuffs

Also Published As

Publication number Publication date
DE3337675A1 (de) 1984-04-26
CH653987A5 (de) 1986-01-31

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: C09B 3/22

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee