FR2080900B1 - - Google Patents
Info
- Publication number
- FR2080900B1 FR2080900B1 FR7100329A FR7100329A FR2080900B1 FR 2080900 B1 FR2080900 B1 FR 2080900B1 FR 7100329 A FR7100329 A FR 7100329A FR 7100329 A FR7100329 A FR 7100329A FR 2080900 B1 FR2080900 B1 FR 2080900B1
- Authority
- FR
- France
- 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
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
- C07D493/10—Spiro-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
- C07C63/33—Polycyclic acids
- C07C63/331—Polycyclic acids with all carboxyl groups bound to non-condensed rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/87—Benzo [c] furans; Hydrogenated benzo [c] furans
- C07D307/89—Benzo [c] furans; Hydrogenated benzo [c] furans with two oxygen atoms directly attached in positions 1 and 3
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1386182A SU326862A1 (ru) | 1970-01-07 | 1970-01-07 | Способ получения ы,ы'-?яс- |
| SU1386186A SU292476A1 (ru) | 1970-01-07 | СПОСОБ ПОЛУЧЕНИЯ БИС-(о:-ФУРИЛ)АРИЛЕНОВ | |
| SU1386177A SU336981A1 (ru) | 1970-01-07 | Способ получения диангидридов арилзамещенных | |
| SU1386179A SU303871A1 (ru) | 1970-01-07 | СПОСОБ ПОЛУЧЕНИЯ а-АРИЛФУРИЛ-ПРОИЗВОДНЫХ, СОДЕРЖАЩИХ СПИРАНОВЫЕ ГРУППИРОВКИ | |
| SU1386176A SU338092A1 (ru) | 1970-01-07 | Способ получения диангидридов ароматических тетракарбоновых кислот |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2080900A1 FR2080900A1 (en) | 1971-11-26 |
| FR2080900B1 true FR2080900B1 (enrdf_load_stackoverflow) | 1973-06-08 |
Family
ID=27532809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7100329A Granted FR2080900A1 (en) | 1970-01-07 | 1971-01-07 | Aromatic tetracarboxylic acid dianhydrides |
Country Status (3)
| Country | Link |
|---|---|
| CS (1) | CS160986B1 (enrdf_load_stackoverflow) |
| DE (1) | DE2100391C3 (enrdf_load_stackoverflow) |
| FR (1) | FR2080900A1 (enrdf_load_stackoverflow) |
-
1971
- 1971-01-07 DE DE19712100391 patent/DE2100391C3/de not_active Expired
- 1971-01-07 FR FR7100329A patent/FR2080900A1/fr active Granted
- 1971-01-07 CS CS9671A patent/CS160986B1/cs unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2080900A1 (en) | 1971-11-26 |
| DE2100391A1 (enrdf_load_stackoverflow) | 1971-09-16 |
| CS160986B1 (enrdf_load_stackoverflow) | 1975-05-04 |
| DE2100391B2 (enrdf_load_stackoverflow) | 1974-05-02 |
| DE2100391C3 (de) | 1974-12-05 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |