FR2355795B1 - - Google Patents
Info
- Publication number
- FR2355795B1 FR2355795B1 FR7714012A FR7714012A FR2355795B1 FR 2355795 B1 FR2355795 B1 FR 2355795B1 FR 7714012 A FR7714012 A FR 7714012A FR 7714012 A FR7714012 A FR 7714012A FR 2355795 B1 FR2355795 B1 FR 2355795B1
- 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/56—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds from heterocyclic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/698,614 US4104308A (en) | 1976-06-21 | 1976-06-21 | Synthesis of squaric acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2355795A1 FR2355795A1 (fr) | 1978-01-20 |
| FR2355795B1 true FR2355795B1 (show.php) | 1980-03-28 |
Family
ID=24805971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7714012A Granted FR2355795A1 (fr) | 1976-06-21 | 1977-05-03 | Procede de synthese de l'acide squarique |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4104308A (show.php) |
| JP (1) | JPS52156836A (show.php) |
| CA (1) | CA1071237A (show.php) |
| FR (1) | FR2355795A1 (show.php) |
| GB (1) | GB1515488A (show.php) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3314431A1 (de) * | 1983-04-21 | 1984-10-25 | Chemische Werke Hüls AG, 4370 Marl | Verfahren zur herstellung von quadratsaeure |
| US4585884A (en) * | 1984-05-23 | 1986-04-29 | Xerox Corporation | Silylated compositions, and deuterated hydroxyl squaraine compositions and processes |
| IE64516B1 (en) * | 1990-02-12 | 1995-08-09 | Lonza Ag | A process for the preparation of quadratic acid |
| IE65907B1 (en) * | 1990-02-26 | 1995-11-29 | Lonza Ag | New 3-hydroxy-2-cyclobuten-1-one salts their preparation and use |
| JPH0868935A (ja) * | 1994-06-24 | 1996-03-12 | Konica Corp | トリプレットレンズを有するカメラ |
| EP1257812B1 (en) * | 1999-11-30 | 2009-04-01 | Electric Power Research Institute | Method for the photometric detection of ions using capillary electrophoresis probes, method for the manufacturing and usage of said probes |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3059030A (en) * | 1959-06-15 | 1962-10-16 | Minnesota Mining & Mfg | Diketocyclobutenediol and alkali metal salts thereof |
| DE1568291A1 (de) * | 1966-06-03 | 1970-03-05 | Huels Chemische Werke Ag | Verfahren zur Herstellung von 1,2-Dihydroxy-cyclobutendion |
| BE786650A (fr) * | 1971-07-24 | 1973-01-24 | Ercoli Raffaele | Procede de preparation de l'acide squarique |
-
1976
- 1976-06-21 US US05/698,614 patent/US4104308A/en not_active Expired - Lifetime
-
1977
- 1977-04-25 GB GB17021/77A patent/GB1515488A/en not_active Expired
- 1977-05-03 FR FR7714012A patent/FR2355795A1/fr active Granted
- 1977-05-18 JP JP5649577A patent/JPS52156836A/ja active Pending
- 1977-05-20 CA CA278,889A patent/CA1071237A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US4104308A (en) | 1978-08-01 |
| CA1071237A (en) | 1980-02-05 |
| GB1515488A (en) | 1978-06-28 |
| FR2355795A1 (fr) | 1978-01-20 |
| JPS52156836A (en) | 1977-12-27 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |