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CAS RN: 26412-87-3 | Product Number: P0998
Pyridine - Sulfur Trioxide Complex
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Purity: >95.0%(T)
Synonyms:
- Sulfur Trioxide - Pyridine Complex
Product Documents:
| Size | Unit Price | Belgium | Japan* | Quantity |
Shipping Information
|
|---|---|---|---|---|---|
| 25G |
€38.00
|
7 | 8 |
|
|
| 100G |
€115.00
|
4 | 25 |
|
|
| 500G |
€551.00
|
3 | 7 |
|
* Stock available in Belgium: Shipment on the same day
* Stock available in Japan: Please check the Shipping Simulation for estimated shipments. (excludes regulated items and dry ice shipments)
| Product Number | P0998 |
Purity / Analysis Method 
|
>95.0%(T) |
| Molecular Formula / Molecular Weight | C__5H__5N·SO__3 = 159.16 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature
|
Room Temperature (Recommended in a cool and dark place, <15°C) |
| Store Under Inert Gas | Store under inert gas |
| Condition to Avoid | Moisture Sensitive |
| CAS RN | 26412-87-3 |
| Reaxys Registry Number | 3704116 |
| PubChem Substance ID | 87575111 |
| MDL Number | MFCD00012437 |
Specifications
| Appearance | White to Light yellow powder to crystal |
| Purity(Ethanolysis Method) | min. 95.0 % |
| NMR | confirm to structure |
Properties (reference)
GHS
| Pictogram |
|
| Signal Word | Danger |
| Hazard Statements | H302 : Harmful if swallowed. H314 : Causes severe skin burns and eye damage. H290 : May be corrosive to metals. |
| Precautionary Statements | P260 : Do not breathe dust. P280 : Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection. P303 + P361 + P353 : IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water. P301 + P330 + P331 : IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P304 + P340 + P310 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor. P305 + P351 + P338 + P310 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER/doctor. |
Related Laws:
| EC Number | 247-683-3 |
Transport Information:
| UN Number | UN3261 |
| Class | 8 |
| Packing Group | III |
| HS Number | 2933310000 |
Application
TCI Practical Example: Synthesis of the Aldehyde Utilizing the Parikh-Doering Oxidation
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Used Chemicals
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Procedure
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To a solution of 3,5-dibenzyloxybenzyl alcohol (1.0 g, 3.1 mmol), N,N-diisopropylethylamine (2.7 mL, 15.6 mmol, 5.0 equiv), and DMSO (2.22 mL, 31 mmol, 10 equiv) in dichloromethane (10 mL) was added SO3·Py (1.49 g, 9.4 mmol, 3.0 equiv) at 0 °C. The reaction mixture was stirred at same temperature for 1 hour and quenched with Na2S2O3 aq. (20 mL) was added to the reaction mixture. The aqueous layer was extracted with dichloromethane (20 mL) and washed brine. The organic phase was concentrated under reduced pressure and the residue was purified by column chromatography (ethyl acetate:hexane = 0:1 - 1:1 on silica gel) to give 3,5-dibenzyloxybenzaldehyde as a white solid (850 mg，y. 85%).
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Experimenter’s Comments
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The reaction mixture was monitored by LC.
This reaction produces dimethyl sulfide, which gives off a bad smell. So that it is recommended to treat this reaction in a fume hood.
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Analytical Data
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3,5-dibenzyloxybenzaldehyde
1H NMR (270 MHz, CDCl3); δ 9.90 (s, 1H), 7.45-7.32 (m, 10H), 7.12 (d, J = 2.1 Hz, 2H), 6.87 (t, 1H, J = 2.1 Hz), 5.93 (s, 4H).
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Lead Reference
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- Bis(benzylamine) monomers: One-pot preparation and application in dendrimer scaffolds for removing pyrene from aqueous environments
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Other References
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- CO2-Catalyzed Oxidation of Benzylic and Allylic Alcohols with DMSO
Application
with DMSO or LiAlH4
References
- E. J. Corey, K. Achiwa, J. Org. Chem. 1969, 34, 3667.
- D. S. Watt, E. J. Corey, Tetrahedron Lett. 1972, 4651.
- J. R. Parikh, W. von E. Doering, J. Am. Chem. Soc. 1967, 89, 5505.
- Y. Hamada, T. Shioiri, Chem. Pharm. Bull. 1982, 30, 1921.
- D. A. Evans, J. Bartroli, Tetrahedron Lett. 1982, 23, 807.
PubMed Literature
Product Documents (Note: Some products will not have analytical charts available.)
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