Propanedioyl dichloride, 2,2-dimethyl-
Dimethylmalonyl Chloride
CAS: 5659-93-8
Molecular Formula: C5H6Cl2O2
Propanedioyl dichloride, 2,2-dimethyl- - Names and Identifiers
| Name | Dimethylmalonyl Chloride |
| Synonyms | Dimethylmalonyl Chloride 2,2-diMethylMalonyl dichloride Propanedioyl dichloride, 2,2-dimethyl- |
| CAS | 5659-93-8 |
| InChIKey | CJXQAYQWVNXIQE-UHFFFAOYSA-N |
Propanedioyl dichloride, 2,2-dimethyl- - Physico-chemical Properties
| Molecular Formula | C5H6Cl2O2 |
| Molar Mass | 169.01 |
| Density | 1.278 g/mL at 25 °C(lit.) |
| Boling Point | 60 °C10 mm Hg(lit.) |
| Flash Point | 125 °F |
| BRN | 774374 |
| Storage Condition | Inert atmosphere,Room Temperature |
| Refractive Index | n20/D 1.451(lit.) |
| MDL | MFCD00192081 |
| Use | The application of dimethyl malonyl dichloride can be used as an intermediate in organic synthesis, and can be prepared from dimethyl malonic acid as a reaction raw material and oxalyl chloride. |
Propanedioyl dichloride, 2,2-dimethyl- - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R10 - Flammable R34 - Causes burns |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
| UN IDs | UN 2920 8/PG 2 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 10-21 |
| Hazard Class | 3.2 |
| Packing Group | III |
Propanedioyl dichloride, 2,2-dimethyl- - Upstream Downstream Industry
| Downstream Products | (S)-4,5-DIHYDRO-2-(2-((S)-4,5-DIHYDRO-4-ISOPROPYLOXAZOL-2-YL)PROPAN-2-YL)-4-ISOPROPYLOXAZOLE (S,S)-(-)-2,2'-ISOPROPYLIDENEBIS(4-TERT-BUTYL-2-OXAZOLINE) |
Propanedioyl dichloride, 2,2-dimethyl- - Preparation
dimethylmalonic acid (0.75g,5.68mmol) was dissolved in anhydrous dichloromethane (10ml) under inert gas, and a small amount of DMF(0.74mmol,0.13eq) was added as catalyst, ice water bath cooling to 0°C, the distillation and purification of oxalyl chloride (17mmol,3.0eq) dissolved in 5ml of anhydrous dichloromethane in constant pressure dropping funnel, very slowly Dropwise add the dichloromethane solution of oxalyl chloride, after the dropwise addition was completed, the reaction solution was slightly yellowish, and naturally warmed up and reacted at room temperature for 18h. After completion of the reaction, the solvent was evaporated to dryness, and distilled under reduced pressure (52 ° C. Fraction was collected) to obtain dimethyl malonyl dichloride as a colorless liquid, yield: 0.82g(86%).
Last Update：2024-04-10 22:29:15
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Downstream Products for Propanedioyl dichloride, 2,2-dimethyl-
(S)-4,5-DIHYDRO-2-(2-((S)-4,5-DIHYDRO-4-ISOPROPYLOXAZOL-2-YL)PROPAN-2-YL)-4-ISOPROPYLOXAZOLE
(S,S)-(-)-2,2'-ISOPROPYLIDENEBIS(4-TERT-BUTYL-2-OXAZOLINE)
(S,S)-(-)-2,2'-ISOPROPYLIDENEBIS(4-TERT-BUTYL-2-OXAZOLINE)