4-Bromoiodobenzene
4-Bromoiodobenzene
CAS: 589-87-7
Molecular Formula: C6H4BrI
4-Bromoiodobenzene - Names and Identifiers
| Name | 4-Bromoiodobenzene |
| Synonyms | 4-BroMoiodoben p-Bromoiodobenzene 4-Bromoiodobenzene 4-IODOBROMOBENZENE 1-Brom-4-iodobenzene 1-Bromo-4-iodobenzene 4-Bromo-1-iodobenzene 1-bromo-4-oiodobenzene benzene,1-broMo-4-iodo- The broMine iodobenzene 4-Bromoiodobenzenep-Bromoiodobenzene |
| CAS | 589-87-7 |
| EINECS | 209-662-7 |
| InChI | InChI=1/C6H4BrI/c7-5-1-3-6(8)4-2-5/h1-4H |
| InChIKey | UCCUXODGPMAHRL-UHFFFAOYSA-N |
4-Bromoiodobenzene - Physico-chemical Properties
| Molecular Formula | C6H4BrI |
| Molar Mass | 282.9 |
| Density | 2.2236 (rough estimate) |
| Melting Point | 89-91°C(lit.) |
| Boling Point | 120-122°C14mm Hg(lit.) |
| Flash Point | 120-122°C/14mm |
| Water Solubility | Insoluble in water. |
| Solubility | 0.008g/l |
| Vapor Presure | 0.0464mmHg at 25°C |
| Appearance | Crystalline powder |
| Color | White to brown |
| BRN | 1904545 |
| Storage Condition | Store below +30°C. |
| Sensitive | Light Sensitive |
| Refractive Index | 1.6618 (estimate) |
| MDL | MFCD00001051 |
| Use | For Organic synthesis |
4-Bromoiodobenzene - 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. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
| TSCA | T |
| HS Code | 29036990 |
| Hazard Note | Harmful/Light Sensitive |
| Hazard Class | IRRITANT, LIGHT SENS |
4-Bromoiodobenzene - 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) |
| synthesis method | p-bromoiodobenzene was synthesized from industrial p-bromoaniline by diazotization and iodination. The optimum synthesis conditions are as follows: first, 0.02mol of p-bromoaniline is dissolved in sulfuric acid medium with mass fraction of 20%, and 0.021mol nano2 is reacted at -10 ℃ to generate p-bromophenyl diazonium sulfate, then, chloroform and 0.021mol of Ki were added to the solution for iodination reaction, and the crude product of p-bromoiodobenzene (in which the purity of p-bromoiodobenzene was 98.4% by HPLC) was obtained by simple post-treatment. After purification, the total yield was 80%, compared with before improvement, it increased by 15%. The product was characterized by IR and 1HNMR. The improved method greatly improves the purity of the crude product, avoids the trouble caused by the column, the operation is simple and safe, the process is easy to control, the cost is low, and it is more suitable for the preparation of p-bromoiodobenzene. unit: College of Chemistry, Chemical Engineering and Materials, Heilongjiang University Author: Guo Jingbai Xuefeng LV Hongfei |
| Use | p-bromoiodobenzene is used in organic synthesis. used as substrate for copper-free Sonogashira coupling reaction in aqueous acetone; Used for synthesis of β,β-dibromostyrene substrate for copper-free Sonogashira coupling reaction in aqueous acetone. It can also be used in the synthesis of β,β-dibromostyrene. |
Last Update：2024-04-09 21:01:54
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