| Identification | More | [Name]
PHENYLSELENYL BROMIDE | [CAS]
34837-55-3 | [Synonyms]
BENZENESELENENYL BROMIDE
BENZENESELENYL BROMIDE
PHENYLSELENENYL BROMIDE
PHENYLSELENYL BROMIDE
Phenylselenium bromide
bromoselenobenzene
Phenylselenenylbromide,98%
Benzeneselenenyl bromide, Benzeneselenyl bromide
Benzeneselenenic acid bromide
Phenylbromo selenide
Phenylbromoselenium
Phenylseleno bromide | [EINECS(EC#)]
252-238-1 | [Molecular Formula]
C6H5BrSe | [MDL Number]
MFCD00000047 | [Molecular Weight]
235.97 | [MOL File]
34837-55-3.mol |
| Chemical Properties | Back Directory | [Appearance]
dark brownish to black crystals | [Melting point ]
58-62 °C (lit.) | [Boiling point ]
107-108 °C/15 mmHg (lit.) | [Fp ]
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 | [Odor]
unpleasant smell. | [Sensitive ]
Moisture Sensitive | [BRN ]
2039772 | [Exposure limits]
ACGIH: TWA 0.2 mg/m3
NIOSH: IDLH 1 mg/m3; TWA 0.2 mg/m3 | [InChIKey]
LCEFEIBEOBPPSJ-UHFFFAOYSA-N | [CAS DataBase Reference]
34837-55-3(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
T,N | [Risk Statements ]
R23/25:Toxic by inhalation and if swallowed .
R33:Danger of cumulative effects.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S20/21:When using, do not eat, drink or smoke .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
UN 2928 6.1/PG 2
| [WGK Germany ]
3
| [F ]
10-21 | [HazardClass ]
6.1 | [PackingGroup ]
II | [HS Code ]
29319090 |
| Hazard Information | Back Directory | [Chemical Properties]
dark brownish to black crystals | [Uses]
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. | [Synthesis]
Phenylselenyl Bromide can be quantitatively prepared in situ by treatment of Diphenyl Diselenide with an equimolar amount of Bromine. | [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. |
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