DIPHENYLDIFLUOROSILANE
- CAS NO.:312-40-3
- Empirical Formula: C12H10F2Si
- Molecular Weight: 220.29
- MDL number: MFCD00017898
- EINECS: 206-226-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-04-23 13:52:06
What is DIPHENYLDIFLUOROSILANE?
Physical properties
bp 246–247 °C, bp 156°C50 mmHg, bp 66–70°C0.5 mmHg; d 1.155 g cm?1.
The Uses of DIPHENYLDIFLUOROSILANE
A moisture insensitive equivalent of diphenyldichlorosilane that is
more reactive toward nucleophiles. Source of phenyl group in the
Hiyama coupling reaction. More stable to electrophilic aromatic
substitution than diphenyldichlorosilane.
Eaborn reported that fluorosilanes are more reactive toward organometallic reagents than the
corresponding chlorosilanes, and therefore more suited for preparation of sterically hindered organosilanes.
Preparation
commercially available. Readily prepared by oxidation of diphenylsilane with CuF2, or by treatment of diphenyldichlorosilane with HF, ZnF2, NaBF4, or (NH4)2SiF6. Rate enhancements of the chlorine–fluorine exchange have been achieved with ultrasound and addition of water. Diethoxydiphenylsilane and related structures are converted to diphenyldifluorosilane with 48% HF(aq).
Properties of DIPHENYLDIFLUOROSILANE
Boiling point: | 159°C 50mm |
Density | 1.145 |
refractive index | 1.522 |
Flash point: | 87°C |
storage temp. | under inert gas (nitrogen or Argon) at 2-8°C |
solubility | soluble in ether. |
Specific Gravity | 1.145 |
Hydrolytic Sensitivity | 8: reacts rapidly with moisture, water, protic solvents |
CAS DataBase Reference | 312-40-3(CAS DataBase Reference) |
EPA Substance Registry System | Silane, difluorodiphenyl- (312-40-3) |
Safety information for DIPHENYLDIFLUOROSILANE
Signal word | Danger |
Pictogram(s) |
Flame Flammables GHS02 Corrosion Corrosives GHS05 |
GHS Hazard Statements |
H314:Skin corrosion/irritation |
Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
Computed Descriptors for DIPHENYLDIFLUOROSILANE
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