24036-52-0
6-Bromo-2H-1,4-benzoxazin-3(4H)-one
CAS: 24036-52-0
Molecular Formula: C8H6BrNO2
24036-52-0 - Names and Identifiers
24036-52-0 - Physico-chemical Properties
| Molecular Formula | C8H6BrNO2 |
| Molar Mass | 228.04 |
| Density | 1.676 |
| Melting Point | 220-225 °C |
| Boling Point | 376.8±42.0 °C(Predicted) |
| Solubility | DMSO, Methanol |
| Appearance | Crystalline powder |
| Color | Light Brown |
| pKa | 11.89±0.20(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| MDL | MFCD00461173 |
| Use | It is used to construct the structural unit of pyrimidine-substituted benzoxazinone and small molecule rennet inhibitor. |
24036-52-0 - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. |
| WGK Germany | 2 |
24036-52-0 - Reference Information
| Overview | 6-bromo-2H-1, 4-benzoxazine -3(4H)-one is an organic intermediate that can be used to prepare a class of PPAR agonistic drugs. |
| preparation | 6-bromo -2H-1, 4-benzoxazine -3(4H)-ketone can be prepared by the following steps: 2-amino -4-bromophenol (2.5g,13mmol) is weighed into a three-mouth bottle, tetrahydrofuran 80mL is added into the system, triethylamine (2.4mL,17mmol) added. The reaction system was cooled to 0 ℃, and chloroacetyl chloride (1.12mL, 14mmol) was added dropwise to the reaction system. After adding, it was stirred at 0 ℃ for 10 minutes, and then stirred to room temperature for 2 hours. Then the system was reduced to 0 ℃, sodium hydride (1.05g,26mmol) was added in batches, and the reaction system was reduced to 0 ℃ for 20 minutes and then raised to room temperature for 2 hours. Concentrate the reaction system, add 100mL of water to quench the reaction, filter the precipitate, wash with water, and dry the filter cake. Get 2.5g of red solid. |
| Use | Used to construct the structural unit of pyrimidine-substituted benzoxazinone and small molecule rennet inhibitor. |
Last Update：2024-04-09 02:00:01
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