GB835897A - Process for the manufacture of ª:ª-di-[aryloxazolyl-(2)]-ethylene compounds - Google Patents
Process for the manufacture of ª:ª-di-[aryloxazolyl-(2)]-ethylene compoundsInfo
- Publication number
- GB835897A GB835897A GB18686/56A GB1868656A GB835897A GB 835897 A GB835897 A GB 835897A GB 18686/56 A GB18686/56 A GB 18686/56A GB 1868656 A GB1868656 A GB 1868656A GB 835897 A GB835897 A GB 835897A
- Authority
- GB
- United Kingdom
- Prior art keywords
- formula
- aryl
- aryloxazolyl
- splitting
- starting materials
- 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
- C07D263/02—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings
- C07D263/30—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D263/32—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
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)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
a :b - Di - [aryloxazolyl - (2)] - ethylene compounds of the formula <FORM:0835897/IV (b)/1> in which R1 and R2 each represent an aryl residue are manufactured by heating an azole compound of formula <FORM:0835897/IV (b)/2> with an agent capable of splitting off water. The starting materials may contain further substituents such as alkyl and alkoxy groups containing up to 4 carbon atoms, halogen atoms and nitro groups. Suitable agents for splitting off water are, for example, zinc chloride, aryl-sulphonic acids, boric acid and sulphur trioxide. The process is preferably carried out at a temperature between 100 DEG and 200 DEG C. The starting materials may be obtained by condensing two molecular proportions of an orthohydroxy-aminoaryl compound with one molecular proportion of thiomalic acid or an alkyl mono- or di-ester thereof, preferably in an inert organic solvent in accordance with the process described and claimed in Specification 835,896. In the examples the following compounds are prepared:- <FORM:0835897/IV (b)/3> <FORM:0835897/IV (b)/4> and (c) <FORM:0835897/IV (b)/5> The method of preparing the starting materials is given in each case. Specification 835,898 also is referred to.ALSO:a .b - di - (aryloxazolyl - (2)] - ethylene compounds of formula <FORM:0835897/IV(c)/1> in which R1 and R2 are aryl residues, which may contain further substituents such as alkyl and alkoxy groups containing up to 4 carbon atoms, halogen atoms and nitro groups, are produced by heating compounds of formula <FORM:0835897/IV(c)/2> with an agent capable of splitting off water, e.g. zinc chloride, aryl sulphonic acids, boric acid and sulphur trioxide. Specification 835,896 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB18686/56A GB835897A (en) | 1956-06-15 | 1956-06-15 | Process for the manufacture of ª:ª-di-[aryloxazolyl-(2)]-ethylene compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB18686/56A GB835897A (en) | 1956-06-15 | 1956-06-15 | Process for the manufacture of ª:ª-di-[aryloxazolyl-(2)]-ethylene compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB835897A true GB835897A (en) | 1960-05-25 |
Family
ID=10116672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18686/56A Expired GB835897A (en) | 1956-06-15 | 1956-06-15 | Process for the manufacture of ª:ª-di-[aryloxazolyl-(2)]-ethylene compounds |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB835897A (en) |
-
1956
- 1956-06-15 GB GB18686/56A patent/GB835897A/en not_active Expired
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