Bromoacetal dehyde diethyl acetal
Bromoacetaldehyde Diethylacetal
CAS: 2032-35-1
Molecular Formula: C6H13BrO2
Bromoacetal dehyde diethyl acetal - Names and Identifiers
| Name | Bromoacetaldehyde Diethylacetal |
| Synonyms | BADEA Bromoacetal BROMOACETAL BROMO ACETYL DIACETAL 2,2-DIETHOXYETHYL BROMIDE 1,1-DIETHOXY-2-BROMOETHANE 2-Bromo-1,1-diethoxyethane 2-BROMO-1,1-DIETHOXYETHANE 1-Bromo-2,2-diethoxyethane Bromoacetaldehydediethylacetal Bromoacetaldehyde Diethylacetal BROMOACETALDEHYDE DIETHYL ACETAL Bromoacetaldehyde diethyl acetal Bromoacetal dehyde diethyl acetal Bromo acetaldehyde diethyl acetal |
| CAS | 2032-35-1 |
| EINECS | 217-989-1 |
| InChI | InChI=1/C6H13BrO2/c1-3-8-6(5-7)9-4-2/h6H,3-5H2,1-2H3 |
| InChIKey | LILXDMFJXYAKMK-UHFFFAOYSA-N |
Bromoacetal dehyde diethyl acetal - Physico-chemical Properties
| Molecular Formula | C6H13BrO2 |
| Molar Mass | 197.07 |
| Density | 1.31g/mLat 25°C(lit.) |
| Boling Point | 66-67°C18mm Hg(lit.) |
| Flash Point | 125°F |
| Water Solubility | immiscible |
| Solubility | Chloroform (Slightly), Methanol (Slightly) |
| Vapor Presure | 0.599mmHg at 25°C |
| Appearance | Oil |
| Specific Gravity | 1.310 |
| Color | Clear Colourless |
| BRN | 635754 |
| Storage Condition | 2-8°C |
| Sensitive | Moisture Sensitive |
| Refractive Index | n20/D 1.439(lit.) |
| Physical and Chemical Properties | Liquid. Soluble in ethanol, ether. |
| Use | Mainly used in the synthesis of antibiotic drugs, such as dirithromycin and cephalosporin and other drugs |
Bromoacetal dehyde diethyl acetal - Risk and Safety
| Risk Codes | R10 - Flammable R36 - Irritating to the eyes R36/38 - Irritating to eyes and skin. R23 - Toxic by inhalation R22 - Harmful if swallowed |
| Safety Description | S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S38 - In case of insufficient ventilation, wear suitable respiratory equipment. S37/39 - Wear suitable gloves and eye/face protection S28A - S36/37 - Wear suitable protective clothing and gloves. |
| UN IDs | UN 1993 3/PG 3 |
| WGK Germany | 3 |
| FLUKA BRAND F CODES | 8-9-21 |
| TSCA | Yes |
| HS Code | 29110000 |
| Hazard Note | Toxic/Irritant |
| Hazard Class | 6.1 |
| Packing Group | III |
Bromoacetal dehyde diethyl acetal - Nature
Open Data Verified Data
liquid. Boiling point 180 C [170 C (relative density 1.280. Refractive index (4418). Soluble in ethanol, ether.
Last Update：2024-01-02 23:10:35
Bromoacetal dehyde diethyl acetal - Preparation Method
Open Data Verified Data
vinyl acetate is added with bromine and condensed with anhydrous ethanol to produce bromoacetaldehyde, which is added with ethanol under the action of dry hydrogen bromide to give crude bromoacetaldehyde diethanol acetal. Unreacted hydrogen bromide was neutralized by ammonia, and fractionated under reduced pressure to collect fractions at 71-76 ° C. (2.666kpa) to obtain a finished product.
Last Update：2022-01-01 10:16:53
Bromoacetal dehyde diethyl acetal - Use
Open Data Verified Data
an intermediate for the synthesis of chlorpheniramine.
Last Update：2022-01-01 10:16:53
Bromoacetal dehyde diethyl acetal - Safety
Open Data Verified Data
has a strong irritating odor, there is a tear. The production equipment should be closed, the operator should wear protective equipment, and the production site should be well ventilated. Should be sealed and stored.
Last Update：2022-01-01 10:16:54
Bromoacetal dehyde diethyl acetal - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| uses | is mainly used in the synthesis of antibiotic drugs, such as dirithromycin and cephalosporin and other drugs pharmaceutical intermediates. Used for hyperthyroidism drugs such as methimazole, hyperthyroidism and chlorpheniramine. used as a pharmaceutical intermediate to synthesize chlorpheniramine. precursor of bromoacetaldehyde, effective reagent for modification of adenine and cytidine derivatives |
| production method | obtained from vinyl acetate by Bromination and alcoholysis: vinyl acetate and anhydrous ethanol are mixed and cooled to -10 °c, bromine was slowly added dropwise with stirring, maintained at -5 °c, and the addition was complete. After gradually raising the temperature to 60 ℃ for 1H, cool to 10 ℃, add 1 times the amount of ice water, then neutralize to pH = 6 with ammonia, and let stand for stratification, the oil layer was washed once with twice the amount of ice water, and the oil layer was separated and fractionated under reduced pressure. The fractions were collected at 71-76 °c (2.67kPa) and were the final product. The content of industrial products is greater than or equal to 96.5%. Raw material consumption quota: vinyl acetate 769kg/t, anhydrous ethanol 2154kg/t, bromine 1338kg/t. |
Last Update：2024-04-09 21:01:54
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