235733

1,1,3,3-Tetramethyldisiloxane

97%

• Synonym(s): 1,3-dihydrotetramethyldisiloxane, sym-tetramethyldisiloxane, Bis(dimethylsilyl)ether, Bis(dimethylsilyl)oxide, Tetramethyldisiloxane
• Linear Formula: [(CH₃)₂SiH]₂O
• CAS Number: 3277-26-7
• Molecular Weight: 134.32
• Beilstein/REAXYS Number: 1733364
• EC Number: 221-906-4
• MDL number: MFCD00008256
• UNSPSC Code: 12352103
• PubChem Substance ID: 24853998
• NACRES: NA.22

Properties

• assay: 97%
• form: liquid
• refractive index: n20/D 1.370 (lit.)
• bp: 70-71 °C (lit.)
• density: 0.76 g/mL at 25 °C (lit.)
• SMILES string: C[SiH](C)O[SiH](C)C
• InChI: 1S/C4H14OSi2/c1-6(2)5-7(3)4/h6-7H,1-4H3
• InChI key: NVYQDQZEMGUESH-UHFFFAOYSA-N

Description

General description

1,1,3,3-Tetramethyldisiloxane is an inexpensive, nontoxic, and mild reducing agent. It is an attractive hydride source for hydrosilylation reactions, dehydrogenative silylations, and polymer production due to its electrophilic nature.

Application

1,1,3,3-Tetramethyldisiloxane can be used as:

• A reactant to synthesize mono-functionalized siloxane derivatives via hydrosilylation reaction.
• A reducing agent to synthesize alkyl halides from aldehydes.

Other Notes

A Practical Procedure for Reduction of Primary, Secondary and Tertiary Amides to Amines

Safety Information

• pictograms: GHS02
• signalword: Danger
• hcodes: H225
• pcodes: P210 - P233 - P240 - P241 - P242 - P243
• Hazard Classifications: Flam. Liq. 2
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 2
• flash_point_f: 14.0 °F - closed cup
• flash_point_c: -9.99 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter