2,2-DIMETHYLGLUTARIC ANHYDRIDE
2,2-Dimethylglutaric anhydride
CAS: 2938-48-9
Molecular Formula: C7H10O3
2,2-DIMETHYLGLUTARIC ANHYDRIDE - Names and Identifiers
| Name | 2,2-Dimethylglutaric anhydride |
| Synonyms | 2,2-DIMETHYLGLUTARIC ANHYDRIDE 2,2-Dimethylglutaric anhydride ALPHA,ALPHA-DIMETHYLGLUTARIC ANHYDRIDE 3,3-dimethyltetrahydro-2H-pyran-2,6-dione 3,3-Dimethyldihydro-2H-pyran-2,6(3H)-dione dihydro-3,3-dimethyl-2H-pyran-2,6(3H)-dione 2H-Pyran-2,6(3H)-dione, dihydro-3,3-dimethyl- |
| CAS | 2938-48-9 |
| EINECS | 220-922-9 |
| InChI | InChI=1/C7H10O3/c1-7(2)4-3-5(8)10-6(7)9/h3-4H2,1-2H3 |
2,2-DIMETHYLGLUTARIC ANHYDRIDE - Physico-chemical Properties
| Molecular Formula | C7H10O3 |
| Molar Mass | 142.15 |
| Density | 1.1643 (rough estimate) |
| Melting Point | 34-38 °C (lit.) |
| Boling Point | 175-180 °C/60 mmHg (lit.) |
| Flash Point | >230°F |
| Vapor Presure | 0.0083mmHg at 25°C |
| Appearance | powder to lump |
| Color | White to Almost white |
| BRN | 117056 |
| Storage Condition | Room Temprature |
| Sensitive | Moisture Sensitive |
| Refractive Index | 1.4730 (estimate) |
| MDL | MFCD00006682 |
2,2-DIMETHYLGLUTARIC ANHYDRIDE - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| HS Code | 29171990 |
2,2-DIMETHYLGLUTARIC ANHYDRIDE - Reference Information
| use | 2,2-dimethylglutaric anhydride is an organic intermediate. it is reported in the literature that 2,2-dimethylglutaric anhydride can be used to prepare a high molecular weight aliphatic polyester. |
| Preparation | 2,2-dimethylglutaric anhydride can be obtained by reacting with a condensing agent from 2,2-dimethylglutaric acid as raw material. 2, 2-dimethylglutaric acid (3.00g,18.7 mmol) was added to a dichloromethane (360 mL) solution of EDCI(3.95g,20.6 mmol) and triethylamine (2.87 mL,20.6 mmol) and the reaction mixture was stirred for 18 h at room temperature. The solution was washed with saturated NaHCO3 aqueous solution (2 × 100mL) and water (1 × 100mL). The organic layer is dried by anhydrous magnesium sulfate, filtered and concentrated. The crude product was purified by rapid silica chromatography using ethyl acetate and hexane (30 ∶ 70) as eluents to give a white solid (1.88g,71%). |
Last Update：2024-04-10 22:29:15
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View History
2,2-DIMETHYLGLUTARIC ANHYDRIDE
二-偶氮
CHLOROMETHYLDICHLOROMETHYLSILANE
3-Chromanone
2-Oxazolinone
Titanous chloride
3-DIMETHYLAMINOANILINE
二-偶氮
CHLOROMETHYLDICHLOROMETHYLSILANE
3-Chromanone
2-Oxazolinone
Titanous chloride
3-DIMETHYLAMINOANILINE