GB1272134A - Process for the manufacture of aryloxazoles - Google Patents
Process for the manufacture of aryloxazolesInfo
- Publication number
- GB1272134A GB1272134A GB48596/69A GB4859669A GB1272134A GB 1272134 A GB1272134 A GB 1272134A GB 48596/69 A GB48596/69 A GB 48596/69A GB 4859669 A GB4859669 A GB 4859669A GB 1272134 A GB1272134 A GB 1272134A
- Authority
- GB
- United Kingdom
- Prior art keywords
- benzoxazolyl
- aryloxazoles
- compound
- thiophene
- oct
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/52—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems
- C07D263/54—Benzoxazoles; Hydrogenated benzoxazoles
- C07D263/56—Benzoxazoles; Hydrogenated benzoxazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
- C07D263/57—Aryl or substituted aryl radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/52—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems
- C07D263/62—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems having two or more ring systems containing condensed 1,3-oxazole rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/52—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems
- C07D263/62—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems having two or more ring systems containing condensed 1,3-oxazole rings
- C07D263/64—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems having two or more ring systems containing condensed 1,3-oxazole rings linked in positions 2 and 2' by chains containing six-membered aromatic rings or ring systems containing such rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Abstract
1,272,134. Aryloxazoles. CIBA-GEIGY A.G. 2 Oct., 1969 [7 Oct., 1968], No. 48596/69. Addition to 1,218,198. Heading C2C. Aryloxazoles are prepared by reacting in an inert solvent (a) an o-hydroxy-aminoaryl compound with (b) an aliphatic dicarboxylic acid containing at least 4 carbon atoms or a mono- or di-carboxylic acid containing 1 or 2 five- or six-membered carbocyclic or heterocyclic rings in the presence of (c) a small amount of boric acid, and (d) less than a stoichiometric amount of a nitrogen base which is a secondary or tertiary, cyclic, non-aromatic nitrogen base; a primary or secondary aminobenzene; a primary or secondary, aliphatic or cycloaliphatic amine; or a basic nitrogen compound containing at least one group of formula by first heating the reaction mixture to a temperature of 150-200 C., and then gradually increasing the temperature to at least 200 C. Lists of starting materials are given and detailed examples describe the preparation of (a) 2,5-di- [benzoxazolyl - (2<SP>1</SP>)] thiophene; (b) 2,5 - di- [5<SP>1</SP> - tert. - butylbenzoxazolyl - (2<SP>1</SP>)] - thiophene; (c) 2 - (41 - methylphenyl) - 5 - tert. - butylbenzoxazole; (d) 4-benzoxazolyl-(2)-diphenyl- (1,11); (e) 2,5-di-[benzoxazolyl-(2<SP>1</SP>)]-furane; (f) 1,2 - di - [benzoxazolyl - (2<SP>1</SP>)]- ethane; (g) 1,4- di - [benzoxazolyl-(21)]-benzene; (h) 1,4-di- [benzoxazolyl-(21)]-naphthalene; and (j) the compound of formula
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1493268A CH514616A (en) | 1968-10-07 | 1968-10-07 | Process for the preparation of arylene oxazoles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1272134A true GB1272134A (en) | 1972-04-26 |
Family
ID=4404963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB48596/69A Expired GB1272134A (en) | 1968-10-07 | 1969-10-02 | Process for the manufacture of aryloxazoles |
Country Status (8)
Country | Link |
---|---|
US (1) | US3678042A (en) |
BE (1) | BE739878A (en) |
CH (1) | CH514616A (en) |
DE (1) | DE1949334A1 (en) |
FR (1) | FR2020034A1 (en) |
GB (1) | GB1272134A (en) |
NL (1) | NL6915094A (en) |
SE (1) | SE362431B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114591316A (en) * | 2022-03-14 | 2022-06-07 | 黄石市利福达医药化工有限公司 | Preparation method of 2, 5-bis (benzoxazole-2-) furan |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL37633A (en) * | 1970-09-10 | 1975-08-31 | Merck & Co Inc | 2-(4-(2-benzoxazolyl)phenyl)alkanoic acid derivatives |
FR2521994A1 (en) * | 1982-02-23 | 1983-08-26 | Ugine Kuhlmann | PROCESS FOR THE PREPARATION OF BENZOXAZOLONE-2 AND DERIVATIVES FROM ORTHONITROPHENOLS AND CARBON MONOXIDE |
US4921964A (en) * | 1989-03-01 | 1990-05-01 | Eastman Kodak Company | Process for the preparation of stilbene derivatives |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL268089A (en) * | 1960-08-11 | |||
BE612775A (en) * | 1961-01-19 | |||
NL285932A (en) * | 1961-11-27 | |||
DE1419330A1 (en) * | 1962-06-09 | 1970-02-19 | Hoechst Ag | Optical brighteners |
CH426721A (en) * | 1964-06-19 | 1967-06-30 | Ciba Geigy | Use of oxazole compounds as optical brightening agents for textile materials made of polyesters |
-
1968
- 1968-10-07 CH CH1493268A patent/CH514616A/en not_active IP Right Cessation
-
1969
- 1969-09-19 SE SE12915/69A patent/SE362431B/xx unknown
- 1969-09-30 DE DE19691949334 patent/DE1949334A1/en not_active Withdrawn
- 1969-09-30 US US862442A patent/US3678042A/en not_active Expired - Lifetime
- 1969-10-02 GB GB48596/69A patent/GB1272134A/en not_active Expired
- 1969-10-03 FR FR6933922A patent/FR2020034A1/fr not_active Withdrawn
- 1969-10-06 BE BE739878D patent/BE739878A/xx unknown
- 1969-10-06 NL NL6915094A patent/NL6915094A/xx not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114591316A (en) * | 2022-03-14 | 2022-06-07 | 黄石市利福达医药化工有限公司 | Preparation method of 2, 5-bis (benzoxazole-2-) furan |
Also Published As
Publication number | Publication date |
---|---|
NL6915094A (en) | 1970-04-09 |
US3678042A (en) | 1972-07-18 |
FR2020034A1 (en) | 1970-07-10 |
CH514616A (en) | 1971-10-31 |
DE1949334A1 (en) | 1970-04-16 |
SE362431B (en) | 1973-12-10 |
BE739878A (en) | 1970-04-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |