| Company Name: |
goldenchemical Gold |
| Tel: |
18651817751 |
| Email: |
xisiyu@goldenchemical.com |
- Oxazole-2-amine
-
- $780.00
-
2024-02-23
- CAS:4570-45-0
- Min. Order: 1g
- Purity: 97
- Supply Ability: 500 Kg
- Oxazole-2-amine
-
- $15.00
-
2021-07-13
- CAS:4570-45-0
- Min. Order: 1KG
- Purity: 99%+ HPLC
- Oxazole-2-amine
-
- $15.00
-
2021-07-10
- CAS:4570-45-0
- Min. Order: 1KG
- Purity: 99%+ HPLC
|
| | Oxazole-2-amine Basic information |
| | Oxazole-2-amine Chemical Properties |
| Melting point | 93-95℃ | | Boiling point | 186.7±23.0 °C(Predicted) | | density | 1.241±0.06 g/cm3(Predicted) | | storage temp. | 2-8°C | | solubility | DMSO (Soluble), Ethyl Acetate (Slightly) | | form | Solid | | pka | 5.45±0.10(Predicted) | | color | Off-White to Pale Yellow | | λmax | 219nm(MeOH)(lit.) | | InChI | InChI=1S/C3H4N2O/c4-3-5-1-2-6-3/h1-2H,(H2,4,5) | | InChIKey | ACTKAGSPIFDCMF-UHFFFAOYSA-N | | SMILES | O1C=CN=C1N | | CAS DataBase Reference | 4570-45-0(CAS DataBase Reference) |
| Hazard Codes | Xi | | Risk Statements | 34-36/37/38 | | Safety Statements | 26-36/37/39-45-24/25 | | RIDADR | 2735 | | WGK Germany | 3 | | HazardClass | IRRITANT | | HS Code | 29349990 | | Storage Class | 11 - Combustible Solids | | Hazard Classifications | Eye Irrit. 2
Skin Irrit. 2
STOT SE 3 |
| | Oxazole-2-amine Usage And Synthesis |
| Uses | 2-Aminooxazole is a chemical reagent used in the synthesis of novel inhibitors of the kinetoplastid Trypanosoma brucei. | | Synthesis | Example 2: Preparation of 2-aminooxazole. To a tetrahydrofuran (THF, 60 mL) solution of cyanamide (19.8 mL, 50% w/w aqueous solution, 0.25 mol) was added a 24 mL aqueous solution of 2-hydroxyacetaldehyde (15 g, 0.25 mol). The reaction mixture was treated with 2 M aqueous sodium hydroxide (25.2 mL, 0.05 mol) at 0 °C. The mixture was slowly warmed to room temperature and stirred continuously for 24 hours. Upon completion of the reaction, the volatile solvent (THF) was removed by distillation under reduced pressure. The remaining aqueous solution was extracted with ethyl acetate (4 × 200 mL). The organic phases were combined, dried with anhydrous sodium sulfate, and subsequently concentrated under reduced pressure to give 14.968 g (71.3% yield) of white solid product. The product was characterized by 400 MHz 1H NMR (CDCl3): δ 7.13 (s, 1H), 6.74 (s, 1H), 5.26 (br.s, 2H). Elemental analysis calculated values (C3H4N2O): C 42.86%, H 4.80%, N 33.32%; measured values: C 43.01%, H 4.87%, N 33.11%. | | References | [1] Patent: WO2007/123892, 2007, A2. Location in patent: Page/Page column 50
[2] Patent: WO2004/110990, 2004, A2. Location in patent: Page 37
[3] Patent: WO2006/44869, 2006, A1. Location in patent: Page/Page column 132
[4] Chemistry - A European Journal, 2013, vol. 19, # 14, p. 4586 - 4595
[5] Synthesis, 1976, p. 591 - 593 |
| | Oxazole-2-amine Preparation Products And Raw materials |
|