Diethyl 1,1-cyclobutanedicarboxylate
- CAS NO.：3779-29-1
- Empirical Formula: C10H16O4
- Molecular Weight: 200.23
- MDL number: MFCD00019261
- EINECS: 223-239-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:18:24
What is Diethyl 1,1-cyclobutanedicarboxylate ?
Chemical properties
Colourless Oil
The Uses of Diethyl 1,1-cyclobutanedicarboxylate
Diethyl 1,1-cyclobutanedicarboxylate is used as a pharmaceutical intermediate. Used as intermediate in the production of Carboplatin.
The Uses of Diethyl 1,1-cyclobutanedicarboxylate
Diethyl cyclobutane-1,1-dicarboxylate may be used in chemical synthesis studies.
Preparation
The preparation of diethyl 1,1-cyclobutanedicarboxylate is as follows:The major product is tetraethy1 1,1,5,5-pentanetetra-carboxylate II with diethyl malonate. To eliminate this side reaction, II was independently prepared by the addition of hydrogen bromide to diethyl allylmalonate (I) and then cyclized to II by treatment with sodium ethylate. The over-all yield from I is about 50%.
Properties of Diethyl 1,1-cyclobutanedicarboxylate
| Boiling point: | 104-105 °C12 mm Hg(lit.) |
| Density | 1.05 g/mL at 20 °C(lit.) |
| refractive index | 1.4360 |
| Flash point: | 89°C |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Chloroform, Dichloromethane, Methanol, |
| form | Oil |
| Specific Gravity | 1.05 |
| color | Colourless |
| Water Solubility | Insoluble in water. |
| BRN | 2050195 |
| CAS DataBase Reference | 3779-29-1(CAS DataBase Reference) |
| NIST Chemistry Reference | Diethyl 1,1-cyclobutanedicarboxylate(3779-29-1) |
| EPA Substance Registry System | 1,1-Cyclobutanedicarboxylic acid, diethyl ester (3779-29-1) |
Safety information for Diethyl 1,1-cyclobutanedicarboxylate
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H227:Flammable liquids |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280:Wear protective gloves/protective clothing/eye protection/face protection. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool. P501:Dispose of contents/container to..… |
Computed Descriptors for Diethyl 1,1-cyclobutanedicarboxylate
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