Name | 3,5-DINITRO-4-HYDROXYBENZALDEHYDE |
Synonyms | Einecs 257-684-0 4-HYDROXY-3,5-DINITROBENZALDEHYDE 3,5-DINITRO-4-HYDROXYBENZALDEHYDE Benzaldehyde, 4-hydroxy-3,5-dinitro- |
CAS | 52132-61-3 |
EINECS | 257-684-0 |
Molecular Formula | C7H4N2O6 |
Molar Mass | 212.12 |
Physical and Chemical Properties | Light yellow needle crystal. Melting point 102 ℃. Insoluble in water, soluble in ethanol and acetone. |
Use | organic synthesis intermediates. |
production method | under stirring, 24g of 4-hydroxy-3-nitrobenzaldehyde is added in portions to 70ml of fuming nitric acid cooled at a temperature not exceeding 5 °c. After addition, the mixture was incubated and stirred at 12 °c for 2H. The reaction solution was poured into 200g of ice to precipitate a yellow solid. Filtration, ice water washing, drying, recrystallization with acetone, 12g of finished product, yield 39%. |