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| | 4-Pyrazol-1-yl-benzaldehyde Basic information |
| | 4-Pyrazol-1-yl-benzaldehyde Chemical Properties |
| Melting point | 82-83°C | | Boiling point | 310.1±25.0 °C(Predicted) | | density | 1.15±0.1 g/cm3(Predicted) | | storage temp. | under inert gas (nitrogen or Argon) at 2-8°C | | form | powder | | pka | -0.34±0.10(Predicted) | | color | Yellow | | CAS DataBase Reference | 99662-34-7(CAS DataBase Reference) |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 24/25 | | HazardClass | IRRITANT | | HS Code | 2933199090 |
| | 4-Pyrazol-1-yl-benzaldehyde Usage And Synthesis |
| Synthesis | To a solution of 4-Fluorobenzaldehyde (10 g, 80.6 mmol) in dry DMF (100 mL) were added pyrazole (5.5 g, 80.6 mmol) and K2C03 (12.2 g, 88.7 mmol). The resulting solution was stirred at 100 °C for overnight. After cooling to RT, the residue was treated with water and extracted with EA. The organic extracts were washed with water and brine, dried over anhydrous Na2SO4, filtered and concentrated to give a crude oil. The crude product was purified by recrystallization to afford 4-Pyrazol-1-yl-benzaldehyde (4 g, 29 percent).1HNMR (CDC13, 300 MHz) ?: 6.5-6.6 (s, 1 H), 7.7-7.8 (s, 1 H), 7.9-8.0 (d, 2 H), 8.0-8.1 (d, 2 H), 8.1-8.2 (s, 1 H), 10.0-10.1 (s, 1 H).
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| | 4-Pyrazol-1-yl-benzaldehyde Preparation Products And Raw materials |
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