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CAS RN: 17887-80-8 | Product Number: B3563

1,3-Bis(trimethylsilyloxy)propane


Purity: >98.0%(GC)
Synonyms:
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Product Number B3563
Purity / Analysis Method >98.0%(GC)
Molecular Formula / Molecular Weight C__9H__2__4O__2Si__2 = 220.46  
Physical State (20 deg.C) Liquid
CAS RN 17887-80-8
Reaxys Registry Number 1748398
PubChem Substance ID 125307383
Specifications
Appearance Colorless to Almost colorless clear liquid
Purity(GC) min. 98.0 %
Properties (reference)
Boiling Point 77 °C/15 mmHg
Flash point 62 °C
Specific Gravity (20/20) 0.84
Refractive Index 1.41
GHS
Pictogram Pictogram
Signal Word Warning
Hazard Statements H315 : Causes skin irritation.
H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ eye protection/ face protection.
P302 + P352 : IF ON SKIN: Wash with plenty of water.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P362 + P364 : Take off contaminated clothing and wash it before reuse.
P332 + P313 : If skin irritation occurs: Get medical advice/ attention.
Related Laws: / Compliance with laws, Regulations
Transport Information:
HS Number 2931399090
Application
Acetalization of Carbonyl Compounds

Typical Procedure: To a solution of carbonyl compound (2 mmol), 1,3-bis(trimethylsilyloxy)propane (2.6–10 mmol) in anhydrous CH2Cl2 (10 mL), NBS (0.06–0.14 mmol) is added, and the resulting solution is stirred at room temperature. After completion of the reaction (TLC or GC), a cold aq. solution of NaOH (5%, 25 mL) is added and the mixture is extracted with CH2Cl2 (3 × 15 mL). The organic extracts are washed successively with NaOH (5%, 15 mL), water (4 × 15 mL) and dried over anhydrous Na2SO4. Evaporation of the solvent under reduced pressure gives almost pure products. Further purification is carried out by vacuum distillation, re-crystallization in appropriate solvent or flash chromatography using appropriate eluent to afford pure acetals.

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