PHENYLSELENYL BROMIDE Chemical Properties

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

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

InChI

InChI=1S/C6H5BrSe/c7-8-6-4-2-1-3-5-6/h1-5H

InChIKey

LCEFEIBEOBPPSJ-UHFFFAOYSA-N

SMILES

[Se](C1=CC=CC=C1)Br

CAS DataBase Reference

34837-55-3(CAS DataBase Reference)

Safety Information

Hazard Codes 

T,N

Risk Statements 

23/25-33-50/53

Safety Statements 

20/21-28-45-60-61

RIDADR 

UN 2928 6.1/PG 2

WGK Germany 

3

F 

10-21

HazardClass 

6.1

PackingGroup 

II

HS Code 

29319090

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials

Hazard Classifications

Acute Tox. 3 Inhalation
Acute Tox. 3 Oral
Aquatic Acute 1
Aquatic Chronic 1
Met. Corr. 1
STOT RE 2

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

PHENYLSELENYL BROMIDE Usage And Synthesis

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.

PHENYLSELENYL BROMIDE(34837-55-3)Related Product Information

• MOLYBDENUM(V) CHLORIDE
• Tetramethylammonium chloride
• Benzene
• Selenium