GB1586366A - Process for the preparation of 4,9-dihydronaphtho(2,3-b)thiophene-4,9-diones - Google Patents

Process for the preparation of 4,9-dihydronaphtho(2,3-b)thiophene-4,9-diones Download PDF

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Publication number
GB1586366A
GB1586366A GB11354/77A GB1135477A GB1586366A GB 1586366 A GB1586366 A GB 1586366A GB 11354/77 A GB11354/77 A GB 11354/77A GB 1135477 A GB1135477 A GB 1135477A GB 1586366 A GB1586366 A GB 1586366A
Authority
GB
United Kingdom
Prior art keywords
thiophene
dihydronaphtho
mixture
ring
formylmethylthio
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
GB11354/77A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB11354/77A priority Critical patent/GB1586366A/en
Priority to DE19782808321 priority patent/DE2808321A1/de
Priority to JP2196678A priority patent/JPS53119864A/ja
Priority to IT21250/78A priority patent/IT1158664B/it
Priority to FR7807635A priority patent/FR2383940A1/fr
Publication of GB1586366A publication Critical patent/GB1586366A/en
Expired 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
    • C09B57/00Other synthetic dyes of known constitution
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/14Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D333/00Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/50Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
    • C07D333/74Naphthothiophenes
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2602/00Systems containing two condensed rings
    • C07C2602/02Systems containing two condensed rings the rings having only two atoms in common
    • C07C2602/04One of the condensed rings being a six-membered aromatic ring
    • C07C2602/10One of the condensed rings being a six-membered aromatic ring the other ring being six-membered, e.g. tetraline

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
GB11354/77A 1977-03-17 1977-03-17 Process for the preparation of 4,9-dihydronaphtho(2,3-b)thiophene-4,9-diones Expired GB1586366A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB11354/77A GB1586366A (en) 1977-03-17 1977-03-17 Process for the preparation of 4,9-dihydronaphtho(2,3-b)thiophene-4,9-diones
DE19782808321 DE2808321A1 (de) 1977-03-17 1978-02-27 Verfahren zur herstellung von 4,9- dihydronaphtho eckige klammer auf ,3-b eckige klammer zu -thiophen-4,9-dionen
JP2196678A JPS53119864A (en) 1977-03-17 1978-02-27 Process for preparing 4*99dihydronaphto*2*33b*thiophenee 4*99dion
IT21250/78A IT1158664B (it) 1977-03-17 1978-03-15 Procedimento per la preparazione di certi 4,9-diidro-nafto (2,3-b) tiofen-4,9-dioni,noti anche come tiofantrachinoni
FR7807635A FR2383940A1 (fr) 1977-03-17 1978-03-16 Procede de production de 4,9-dihydronaphto-(2,3-b)- thiophene-4,9-diones, produits obtenus et leurs applications tinctoriales

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11354/77A GB1586366A (en) 1977-03-17 1977-03-17 Process for the preparation of 4,9-dihydronaphtho(2,3-b)thiophene-4,9-diones

Publications (1)

Publication Number Publication Date
GB1586366A true GB1586366A (en) 1981-03-18

Family

ID=9984717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11354/77A Expired GB1586366A (en) 1977-03-17 1977-03-17 Process for the preparation of 4,9-dihydronaphtho(2,3-b)thiophene-4,9-diones

Country Status (5)

Country Link
JP (1) JPS53119864A (it)
DE (1) DE2808321A1 (it)
FR (1) FR2383940A1 (it)
GB (1) GB1586366A (it)
IT (1) IT1158664B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW252136B (it) * 1992-10-08 1995-07-21 Ciba Geigy

Also Published As

Publication number Publication date
DE2808321A1 (de) 1978-09-21
JPS53119864A (en) 1978-10-19
IT1158664B (it) 1987-02-25
FR2383940A1 (fr) 1978-10-13
IT7821250A0 (it) 1978-03-15

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed