5-fluoro-4(1h)-pyrimidinon

5-fluoro-4(1h)-pyrimidinon - Names and Identifiers

Name	5-Fluoro-4-Hydroxypyrimidine
Synonyms	fluoxidine fluoxydine Fluoxydine 5-Fluor-4-pyrimidinol 5-fluoro-4(1h)-pyrimidinon 4-hydroxy-5-fluorpyrimidin 5-fluoro-3h-pyrimidin-4-one 4-Hydroxy-5-Fluorpyrimidine 5-Fluoro-4(1H)-pyrimidinone 5-fluoropyrimidin-4(3H)-one 5-FLUORO-4-HYDROXYPYRIMIDINE 5-Fluoro-4-Hydroxypyrimidine 1,2,4,5-tetrafluoro-3,6-bis(2,2,2-trifluoroethoxy)benzene
CAS	671-35-2
InChI	InChI=1/C10H4F10O2/c11-3-5(13)8(22-2-10(18,19)20)6(14)4(12)7(3)21-1-9(15,16)17/h1-2H2

5-fluoro-4(1h)-pyrimidinon - Physico-chemical Properties

Molecular Formula	C4H3FN2O
Molar Mass	114.08
Density	1.3658 (estimate)
Melting Point	204-205 °C(Solv: water (7732-18-5))
Boling Point	200.5°C at 760 mmHg
Flash Point	81.6°C
Vapor Presure	0.458mmHg at 25°C
pKa	7.13±0.40(Predicted)
Storage Condition	Inert atmosphere,Room Temperature
Refractive Index	1.369
Physical and Chemical Properties	White scaly Crystal, melting point 203-204 ℃. Soluble in water, alkaline solution, soluble in acetic acid, hot ethanol, insoluble in ethanol, acetone, chloroform, ether.

5-fluoro-4(1h)-pyrimidinon - Risk and Safety

Hazard Symbols	Xi - Irritant
Risk Codes	36/37/38 - 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.
HS Code	29335990

5-fluoro-4(1h)-pyrimidinon - Reference Information

purpose

This product is an antitumor drug.

production method

is obtained by condensation of ethyl fluoroacetate. Sodium methoxide was added to a dry reaction Pan and ethyl formate was added to remove the free base from the sodium methoxide. Methanol was distilled off under normal pressure with stirring, and then distilled under reduced pressure until sodium methoxide became a white powder, the temperature was lowered to 50 ° C., and toluene was added. Then, ethyl formate was added dropwise at 10 °c. After the addition, ethyl fluoroacetate was added dropwise and kept below 10 ℃. After the addition was completed, the reaction was carried out at 20-25 ℃ for 7h, and then decreased to below 10 ℃, left standing overnight. Hydrochloric acid was added and the cured was slowly heated to dissolve. The filtrate was filtered, and part of the liquid was distilled off under normal pressure. The crystals were cooled and filtered to obtain a crude product. With anhydrous ethanol recrystallization, activated carbon decolorization, 5-fluoro-4-hydroxy pyrimidine.

Last Update：2024-04-09 02:00:10