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Tris(trimethylsilyl)silane

Tris(trimethylsilyl)silane chemical structure
CAS Number1873-77-4
Formula[(CH3)3Si]3SiH
Mol. Weight248.66 g/mol

What is Tris(trimethylsilyl)silane?

Tris(trimethylsilyl)silane is a chemical compound with CAS number 1873-77-4 and molecular formula [(CH3)3Si]3SiH. It is used in various industrial and research applications.

Applications

Super Silyl Protecting Groups

Used in:
• Hydrosilylations1
• Radical reactions2
• Reductions of acid chlorides3
• Reductions of carbon-halogen bonds4
• Hydrosilations of carbonyls5

• Another common application involves the use of the tris(trimethylsilyl)silyl (TTMSS, or super silyl) group when complexed with transition metals and main group elements6,7

• More recently, the super silyl group is being utilized in carbon–carbon bond forming reactions8

Specifications

Linear Formula

[(CH3)3Si]3SiH

Molecular Weight

248.66 g/mol

Assay/Purity

97%

Boiling Point

73 °C/5 mmHg(lit.)

Density

0.806 g/mL at 25 °C(lit.)

Safety Information

GHS02GHS02
GHS07GHS07
Signal Word

Warning

Hazard Statements

H226-H315-H319-H335

Precautionary Statements

P305 + P351 + P338

Required PPE

Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter

WGK Germany

3

Frequently Asked Questions