1-(2,3-dihydro-5-benzofuranyl)-ethanone
5-Acetyl-2,3-dihydrobenzo[b]furan
CAS: 90843-31-5
Molecular Formula: C10H10O2
1-(2,3-dihydro-5-benzofuranyl)-ethanone - Names and Identifiers
1-(2,3-dihydro-5-benzofuranyl)-ethanone - Physico-chemical Properties
| Molecular Formula | C10H10O2 |
| Molar Mass | 162.19 |
| Density | 1.149±0.06 g/cm3(Predicted) |
| Melting Point | 56-59°C |
| Boling Point | 120-121°C 15mm |
| Flash Point | 120-121°C/15mm |
| Vapor Presure | 0.000674mmHg at 25°C |
| BRN | 131198 |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.557 |
| MDL | MFCD00068033 |
1-(2,3-dihydro-5-benzofuranyl)-ethanone - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed R51 - Toxic to aquatic organisms |
| Safety Description | 24/25 - Avoid contact with skin and eyes. |
| HS Code | 29349990 |
1-(2,3-dihydro-5-benzofuranyl)-ethanone - Reference Information
| Use | 5-acetyl-2, 3-dihydrobenzofuran is a white crystalline powder, is an organic intermediate for the synthesis of anti-inflammatory analgesics 2, 3-dihydrobenzofuran-2-carboxylic acids. |
| preparation | O-bromophenol as raw material, water as solvent, in the phase transfer catalyst benzyl tributyl ammonium chloride with 1, 2-dichloroethane, 2, 3-dihydrobenzofuran can be obtained by heating sodium hydroxide and sodium bisulfite under reflux for alkylation reaction, then reacting with 1, 2-dibromoethane and magnesium in anhydrous tetrahydrofuran solvent. This method has simple steps, short time, synthesis of the post-treatment process is simple, the yield is up to 76.6%, has a good application prospect. The reaction route is as follows: |
Last Update：2024-04-09 21:11:58
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View History
1-(2,3-dihydro-5-benzofuranyl)-ethanone
1H-吲唑-1,3-二羧酸,5-碘-,1-(1,1-二甲基乙基)3-甲酯
3-(ACETYLAMINO)BENZOIC ACID
2,7-Naphthyridin-1(2H)-one
1,4-butynedilol(liquid)
9,10-diphenylanthracen
氯二异丙基磷
胺二苯基酮
1H-吲唑-1,3-二羧酸,5-碘-,1-(1,1-二甲基乙基)3-甲酯
3-(ACETYLAMINO)BENZOIC ACID
2,7-Naphthyridin-1(2H)-one
1,4-butynedilol(liquid)
9,10-diphenylanthracen
氯二异丙基磷
胺二苯基酮