GB940770A - Process for the production of a thiophene derivative - Google Patents

Process for the production of a thiophene derivative

Info

Publication number
GB940770A
GB940770A GB1484662A GB1484662A GB940770A GB 940770 A GB940770 A GB 940770A GB 1484662 A GB1484662 A GB 1484662A GB 1484662 A GB1484662 A GB 1484662A GB 940770 A GB940770 A GB 940770A
Authority
GB
United Kingdom
Prior art keywords
benzoxazolyl
production
prepared
heating
carried out
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
GB1484662A
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.)
BASF Schweiz AG
Original Assignee
Ciba 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 AG filed Critical Ciba AG
Publication of GB940770A publication Critical patent/GB940770A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
    • C07D417/14—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing three or more hetero rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

2, 5 - Di - [benzoxazolyl - (21)] - thiophene of formula <FORM:0940770/C2/1> is prepared by heating a mixture of 1,4-di-[benzoxazolyl-(21)]-butane with sulphur. Preferably a substantial excess of sulphur over the theoretically required amount is used and the process is carried out at a temperature in the range 180-290 DEG C. The process may be carried out in the presence of an inert solvent. The 1,4-di-[benzoxazolyl-(21)]-butane used as starting material may be prepared by heating two molecular proportions of o -aminophenol with one molecular proportion of adipic acid, if desired in the presence of a catalyst such as boric acid.
GB1484662A 1961-05-09 1962-04-17 Process for the production of a thiophene derivative Expired GB940770A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH545261A CH405315A (en) 1961-05-09 1961-05-09 Process for the preparation of thiophene compounds

Publications (1)

Publication Number Publication Date
GB940770A true GB940770A (en) 1963-11-06

Family

ID=4293819

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1484662A Expired GB940770A (en) 1961-05-09 1962-04-17 Process for the production of a thiophene derivative

Country Status (7)

Country Link
AT (1) AT239214B (en)
CH (1) CH405315A (en)
DE (1) DE1226583B (en)
ES (1) ES277151A1 (en)
GB (1) GB940770A (en)
NL (1) NL278172A (en)
SE (1) SE300981B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2729986A1 (en) * 1976-07-05 1978-01-12 Ciba Geigy Ag PROCESS FOR PREPARING 2,5-BIS (BENZOXAZOLYL) THIOPHEN COMPOUNDS

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL277287A (en) * 1958-09-02

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4267343A (en) 1975-05-11 1981-05-12 Ciba-Geigy Corporation Process for the manufacture of 2,5-bis-(benzoxazolyl)-thiophene compounds
DE2729986A1 (en) * 1976-07-05 1978-01-12 Ciba Geigy Ag PROCESS FOR PREPARING 2,5-BIS (BENZOXAZOLYL) THIOPHEN COMPOUNDS

Also Published As

Publication number Publication date
CH405315A (en) 1966-01-15
NL278172A (en)
DE1226583B (en) 1966-10-13
SE300981B (en) 1968-05-20
AT239214B (en) 1965-03-25
ES277151A1 (en) 1963-11-16

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