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| CAS No.: | 6007-85-8 |
|---|---|
| Name: | THIOPHENE-3,4-DICARBOXYLIC ACID |
| Article Data: | 37 |
| Cas Database | |
| Molecular Structure: | |
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| Formula: | C6H2O3S |
| Molecular Weight: | 154.146 |
| Synonyms: | 3,4-Thiophenedicarboxylicanhydride (6CI,7CI,8CI);3,4-Thiophenedicarboxylic acid anhydride;NSC 241105; |
| Density: | 1.674 g/cm3 |
| Melting Point: | 144.5-146.5℃ (toluene ) |
| Boiling Point: | 306.4 °C at 760 mmHg |
| Flash Point: | 139.1 °C |
| PSA: | 71.61000 |
| LogP: | 1.05870 |
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| Conditions | Yield |
|---|---|
| With acetic anhydride at 110℃; | 100% |
| With acetic anhydride at 140℃; for 12h; | 95% |
| With acetic anhydride | 93% |
| Conditions | Yield |
|---|---|
| at 220℃; |
- 6007-85-8
1H,3H-thieno[3,4-c]furan-1,3-dione
| Conditions | Yield |
|---|---|
| under 0.00375 Torr; Pyrolysis; |
- 6007-85-8
1H,3H-thieno[3,4-c]furan-1,3-dione
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: 370 °C / 0 Torr / Pyrolysis 2: 0 Torr / Pyrolysis View Scheme |
- 18853-32-2
3,4-dicyanothiophene
- 6007-85-8
1H,3H-thieno[3,4-c]furan-1,3-dione
| Conditions | Yield |
|---|---|
| Multi-step reaction with 2 steps 1: 74 percent / KOH / ethane-1,2-diol / Heating 2: 86 percent / Ac2O / 140 °C View Scheme | |
| Multi-step reaction with 2 steps 1.1: potassium hydroxide / ethylene glycol / 4 h 1.2: Cooling with ice 2.1: acetic anhydride / 3 h / Reflux View Scheme | |
| Multi-step reaction with 2 steps 1: potassium hydroxide / ethylene glycol / 4 h / Heating / reflux 2: acetic anhydride / 3 h / Heating / reflux View Scheme |
- 6007-85-8
1H,3H-thieno[3,4-c]furan-1,3-dione
- 33788-00-0
6-aminoundecane
- 1332524-83-0
4-[[1-pentylhexylamino]carbonyl]-3-thiophenecarboxylic acid
| Conditions | Yield |
|---|---|
| In toluene for 24h; Reflux; | 98% |
- 6007-85-8
1H,3H-thieno[3,4-c]furan-1,3-dione
- 124-22-1
n-Dodecylamine
- 847053-25-2
4-dodecylcarbamoylthiophene-3-carboxylic acid
| Conditions | Yield |
|---|---|
| In toluene | 97% |
| In toluene | 97% |
| In toluene for 24h; Heating; | 93% |
| In toluene Reflux; Inert atmosphere; | |
| In toluene at 110℃; for 12h; Inert atmosphere; |
- 104-75-6
2-Ethylhexylamine
- 6007-85-8
1H,3H-thieno[3,4-c]furan-1,3-dione
- 1231160-82-9
5-(2-ethylhexyl)-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione
| Conditions | Yield |
|---|---|
| Stage #1: 2-Ethylhexylamine; 1H,3H-thieno[3,4-c]furan-1,3-dione In toluene at 140℃; for 24h; Inert atmosphere; Stage #2: With thionyl chloride at 140℃; for 3h; Inert atmosphere; | 96% |
| In acetic acid Inert atmosphere; Reflux; Schlenk technique; | |
| Stage #1: 2-Ethylhexylamine; 1H,3H-thieno[3,4-c]furan-1,3-dione In toluene at 140℃; for 24h; Stage #2: With thionyl chloride for 3h; Reflux; | 6.20 g |
| Stage #1: 2-Ethylhexylamine; 1H,3H-thieno[3,4-c]furan-1,3-dione In toluene Reflux; Stage #2: With thionyl chloride for 4h; Reflux; |
| Conditions | Yield |
|---|---|
| In toluene for 24h; Reflux; | 95.3% |
| In toluene Reflux; Inert atmosphere; |
- 6007-85-8
1H,3H-thieno[3,4-c]furan-1,3-dione
- 22513-16-2
1-hexylheptylamine
- 1332524-74-9
4-[[1-hexylheptylamino]carbonyl]-3-thiophenecarboxylic acid
| Conditions | Yield |
|---|---|
| In toluene for 24h; Reflux; | 94% |
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Specification
The 1H,3H-Thieno[3,4-c]furan-1,3-dione has CAS registry number 6007-85-8. This chemical's molecular formula is C6H2O3S and molecular weight is 154.14. What's more, its IUPAC name is Thieno[3,4-c]furan-1,3-dione.
Physical properties of 1H,3H-Thieno[3,4-c]furan-1,3-dione are: (1)ACD/LogP: 1.28; (2)# of Rule of 5 Violations: 0; (3)#H bond acceptors: 3; (4)#H bond donors: 0; (5)#Freely Rotating Bonds: 0; (6)Polar Surface Area: 71.61 Å2; (7)Index of Refraction: 1.662; (8)Molar Refractivity: 34.06 cm3; (9)Molar Volume: 92 cm3; (10)Polarizability: 13.5×10-24cm3; (11)Surface Tension: 71.8 dyne/cm; (12)Density: 1.674 g/cm3; (13)Flash Point: 139.1 °C; (14)Enthalpy of Vaporization: 54.69 kJ/mol; (15)Boiling Point: 306.4 °C at 760 mmHg; (16)Vapour Pressure: 0.000772 mmHg at 25°C.
You can still convert the following datas into molecular structure:
(1)SMILES: O=C2OC(=O)c1cscc12
(2)Std. InChI: InChI=1S/C6H2O3S/c7-5-3-1-10-2-4(3)6(8)9-5/h1-2H
(3)Std. InChIKey: XQTUSPVIMZCNPC-UHFFFAOYSA-N