PHENYLSELENYL BROMIDE
Synonym(s):Benzeneselenenyl bromide;Benzeneselenyl bromide
- CAS NO.：34837-55-3
- Empirical Formula: C6H5BrSe
- Molecular Weight: 235.97
- MDL number: MFCD00000047
- EINECS: 252-238-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-04-23 13:52:06
What is PHENYLSELENYL BROMIDE?
Chemical properties
dark brownish to black crystals
The Uses of PHENYLSELENYL BROMIDE
Employed in the synthesis of enones by selenenylation of α-cyano ketones with lithium naphthalenide. Phenylselenyl bromide was used in the preparation of exo-2-methyl-7-phenylselenyl-octahydro-8-oxa-2,7b-diaza-dicyclopenta[a,e]pentalene-1,3-dione and endo-2-methyl-7-phenylselanyl-octahydro-8-oxa-2,7b-diaza-dicyclopenta[a,e]pentalene-1,3-dione.
Purification Methods
Distil it in a vacuum, recrystallise it from pet ether, CHCl3 (EtOH free), or Et2O (cooling mixture) to give dark red or orange crystals. These sublime at 25o/0.001mm [Behaghel et al. Chem Ber 65 815 1932, Pitteloud & Petrzilka Helv Chim Acta 62 1319 1979]. [Beilstein 6 III 1111.] HIGHLY TOXIC.
Properties of PHENYLSELENYL BROMIDE
| Melting point: | 58-62 °C (lit.) |
| Boiling point: | 107-108 °C/15 mmHg (lit.) |
| Flash point: | 107-108°C/15mm |
| storage temp. | 2-8°C |
| solubility | Soluble in toluene, very faint turbidity. |
| form | solid |
| color | Orange to Brown to Dark purple |
| Sensitive | Moisture Sensitive |
| BRN | 2039772 |
| Exposure limits | ACGIH: TWA 0.2 mg/m3 NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3 |
| CAS DataBase Reference | 34837-55-3(CAS DataBase Reference) |
Safety information for PHENYLSELENYL BROMIDE
| Signal word | Danger |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H290:Corrosive to Metals H373:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P234:Keep only in original container. P260:Do not breathe dust/fume/gas/mist/vapours/spray. P273:Avoid release to the environment. P314:Get medical advice/attention if you feel unwell. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
Computed Descriptors for PHENYLSELENYL BROMIDE
| InChIKey | LCEFEIBEOBPPSJ-UHFFFAOYSA-N |
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