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CAS RN: 16695-22-0 | Product Number: B4136
N,N-Bis[2-(p-tolylsulfonyloxy)ethyl]-p-toluenesulfonamide
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![N,N-Bis[2-(p-tolylsulfonyloxy)ethyl]-p-toluenesulfonamide](/_ui/responsive/theme-tci/images/missing_product_zoom.jpg "N,N-Bis[2-(p-tolylsulfonyloxy)ethyl]-p-toluenesulfonamide")
Purity: >98.0%(HPLC)(N)
Synonyms:
- N,N-Bis[2-(tosyloxy)ethyl]-p-toluenesulfonamide
Product Documents:
| Size | Unit Price | Philadelphia, PA | Portland, OR | Japan* | Quantity |
|---|---|---|---|---|---|
| 5G |
$48.00
|
1 | Contact Us | 1 |
|
| 25G |
$169.00
|
1 | Contact Us | 19 |
|
* Items in stock locally ship in 1-2 business days. Items from Japan stock are able to ship from a US warehouse within 2 weeks. Please contact TCI for lead times on items not in stock. Excludes regulated items and items that ship on ice.
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| Product Number | B4136 |
| Purity / Analysis Method | >98.0%(HPLC)(N) |
| Molecular Formula / Molecular Weight | C__2__5H__2__9NO__8S__3 = 567.69 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature | Room Temperature (Recommended in a cool and dark place, <15°C) |
| CAS RN | 16695-22-0 |
| Reaxys Registry Number | 2406580 |
| PubChem Substance ID | 253660357 |
| MDL Number | MFCD00026000 |
Specifications
| Appearance | White to Almost white powder to crystal |
| Purity(HPLC) | min. 98.0 area% |
| Purity(with Total Nitrogen) | min. 98.0 % |
| Melting point | 93.0 to 97.0 °C |
| NMR | confirm to structure |
Properties (reference)
| Melting Point | 95 °C |
| Solubility (soluble in) | Methanol |
GHS
| Pictogram |
|
| Signal Word | Warning |
| Hazard Statements | H317 : May cause an allergic skin reaction. H413 : May cause long lasting harmful effects to aquatic life. |
| Precautionary Statements | P501 : Dispose of contents/ container to an approved waste disposal plant. P261 : Avoid breathing dust/ fume/ gas/ mist/ vapors/ spray. P273 : Avoid release to the environment. P280 : Wear protective gloves. P272 : Contaminated work clothing must not be allowed out of the workplace. P302 + P352 : IF ON SKIN: Wash with plenty of soap and water. P333 + P313 : If skin irritation or rash occurs: Get medical advice/ attention. P363 : Wash contaminated clothing before reuse. |
Related Laws:
Transport Information:
| HS Number | 2935.90.9500 |
Application
A Useful Reagent for the Synthesis of Piperazines
Synthesis of 1-Cyclohexyl-4-tosylpiperazine
N,N-Bis[2-(p-tolylsulfonyloxy)ethyl]-p-toluenesulfonamide (B4136, 5.83 g, 10.3 mmol), K2CO3 (P1748, 8.00 g, 58.0 mmol), cyclohexylamine (C0494, 0.99 g, 10.0 mmol), and anhydrous CH3CN (50 mL) are added to a round-bottom flask. The mixture is heated to reflux under an N2 atmosphere for 12 h. The mixture is cooled to r.t. and filtered. The filtrate is concentrated, and the residue is purified by flash chromatography (SiO2, CH2Cl2－CH3OH－Et3N as eluent) to give 1-cyclohexyl-4-tosylpiperazine as a white solid in 83% yield (2.67 g).
N,N-Bis[2-(p-tolylsulfonyloxy)ethyl]-p-toluenesulfonamide (B4136, 5.83 g, 10.3 mmol), K2CO3 (P1748, 8.00 g, 58.0 mmol), cyclohexylamine (C0494, 0.99 g, 10.0 mmol), and anhydrous CH3CN (50 mL) are added to a round-bottom flask. The mixture is heated to reflux under an N2 atmosphere for 12 h. The mixture is cooled to r.t. and filtered. The filtrate is concentrated, and the residue is purified by flash chromatography (SiO2, CH2Cl2－CH3OH－Et3N as eluent) to give 1-cyclohexyl-4-tosylpiperazine as a white solid in 83% yield (2.67 g).
References
- One-Step Cyclization: Synthesis of N-Heteroalkyl-N′-tosylpiperazines
PubMed Literature
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