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CAS RN: 152120-62-2 | Product Number: C2709
N-(Carbobenzoxy)-1H-pyrazole-1-carboxamidine
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Purity: >98.0%(T)(HPLC)
Synonyms:
- N-(Benzyloxycarbonyl)-1H-pyrazole-1-carboxamidine
- N-Cbz-1H-pyrazole-1-carboxamidine
- 1-[N-(Carbobenzoxy)amidino]pyrazole
- 1-(N-Cbz-amidino)pyrazole
Product Documents:
| Size | Unit Price | Belgium | Japan* | Quantity |
|---|---|---|---|---|
| 1G |
€23.00
|
1 | 3 |
|
| 5G |
€86.00
|
1 | 5 |
|
*Stock available in Belgium will be delivered in 1 to 3 days
*Stock available in Japan will be delivered in 1 to 2 weeks (excludes regulated items and dry ice shipments).
| Product Number | C2709 |
| Purity / Analysis Method | >98.0%(T)(HPLC) |
| Molecular Formula / Molecular Weight | C__1__2H__1__2N__4O__2 = 244.25 |
| Physical State (20 deg.C) | Solid |
| Storage Temperature | Room Temperature (Recommended in a cool and dark place, <15°C) |
| CAS RN | 152120-62-2 |
| Reaxys Registry Number | 6146986 |
| PubChem Substance ID | 172088938 |
| MDL Number | MFCD00274657 |
Specifications
| Appearance | White to Almost white powder to crystal |
| Purity(HPLC) | min. 98.0 area% |
| Purity(Nonaqueous Titration) | min. 98.0 % |
| Melting point | 109.0 to 113.0 °C |
| NMR | confirm to structure |
Properties (reference)
| Melting Point | 111 °C |
GHS
| 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:
Transport Information:
| HS Number | 2933199090 |
Application
A Guanidinylating Reagent
Experimental procedure1): to N-(carbobenzoxy)-1H-pyrazole-1-carboxamidine (4.2 mmol, 1.026 g, 1 eq.) is added allylamine (40 mmol, 2.289 g, 3.0 mL, 9.5 eq.). The solution is stirred under argon for 2.5 h at 35 °C. The solution is cooled to room temperature, and the solvent is removed under reduced pressure to give the crude product. Flash column chromatography on silica gel (75:25, nHept/EtOAc) affords the product (0.806 g, 82% yield) as a yellow solid.
References
- 1)Halocyclization of Unsaturated Guanidines Mediated by Koser’s Reagent and Lithium Halides
- 2)Preparation of N-alkyl-N’-carboalkoxy guanidines: unexpected effective trans-alkoxylation transforming the 2,2,2-trichloroethoxycarbonyl into various carbamates
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