[BIS(TRIMETHYLSILYL)]SELENIDE Property

Melting point:

-7°C

Boiling point:

58-9°C/11mmHg

Density 

0,9 g/cm³

refractive index 

1.481

Flash point:

59.6±18.7℃

solubility 

sol Et2O and THF.

form 

liquid

Specific Gravity

0.90

Hydrolytic Sensitivity

7: reacts slowly with moisture/water

Safety

TSCA 

No

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H226Flammable liquid and vapour

H373May cause damage to organs through prolonged or repeated exposure

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P273Avoid release to the environment.

P314Get medical advice/attention if you feel unwell.

P391Collect spillage. Hazardous to the aquatic environment

P501Dispose of contents/container to..…

[BIS(TRIMETHYLSILYL)]SELENIDE Chemical Properties,Usage,Production

Chemical Properties

CLEAR COLOURLESS TO YELLOW LIQUID

Physical properties

bp 45–46°C/5.3 mmHg.

Uses

Bis(trimethylsilyl) Selenide can be used as synthesis of unsymmetrical selenides; generation of selenoaldehydes; reduction of sulfoxides, selenoxides, and telluroxides).
Bis(trimethylsilyl) selenide reacts with equimolar amounts of n-butyllithium to generate Me3SiSeLi, alkylation of which then provides trimethylsilyl alkyl selenides. Similar treatment of Me3SiSeR with BuLi / R2X successfully leads to unsymmetrical selenides in good yields (eq 5).Use of acid chlorides in place of alkyl halides results in the formation of selenoesters.

Preparation

In the initial studies, bis(trimethylsilyl) selenide was synthesized by the following two methods: silylation of sodium selenide (or lithium selenide) with chlorotrimethylsilane (eq 1) or reaction of bromobenzene, magnesium, and selenium with chlorotrimethylsilane (eq 2).