Molecular Formula | C7H10O3 |
Molar Mass | 142.15 |
Density | 1.145g/mLat 25°C(lit.) |
Melting Point | 123-125 °C |
Boling Point | 105°C19mm Hg(lit.) |
Flash Point | >230°F |
Solubility | Chloroform, Ethyl Acetate |
Vapor Presure | 0.2mmHg at 25°C |
Appearance | Liquid |
Specific Gravity | 1.12 |
Color | Clear colorless to slight yellow |
BRN | 971717 |
pKa | 12.00±0.20(Predicted) |
Storage Condition | 2-8°C |
Refractive Index | n20/D 1.456(lit.) |
Physical and Chemical Properties | Density 1.054 boiling point 102-104 ° C. (11 mmHg) refractive index 1.455-1.457 flash point 79 ° C. |
Hazard Symbols | Xi - Irritant |
Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R10 - Flammable |
Safety Description | S23 - Do not breathe vapour. S24/25 - Avoid contact with skin and eyes. S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
WGK Germany | 3 |
TSCA | Yes |
HS Code | 29183000 |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Introduction | 2-methoxycarbonyl cyclopentanone is an organic intermediate, it can be prepared from cyclopentanone and dimethyl carbonate by one-step reaction, or from dimethyl adipate by cyclization of sodium hydrogen or sodium methoxide. |
preparation | add 126g cyclopentanone, 567g of dimethyl carbonate and 12.6g of solid base catalyst KF/Al2O3, wherein the solid base catalyst loading was 10(w/w)%, and the reaction was refluxed for 3H. The catalyst was cooled, filtered off, and the filtrate was distilled off under reduced pressure and distilled. The fraction 167G was collected at a pressure of 11mmHg and a temperature of 102 ° C. To 104 ° C. To obtain a colorless transparent liquid 2-methoxycarbonylcyclopentanone. |