(2-Fluoro-3-nitrophenyl)methanol

(2-Fluoro-3-nitrophenyl)methanol Property

Boiling point:

328.7±27.0 °C(Predicted)

Density 

1.434±0.06 g/cm3(Predicted)

storage temp. 

Sealed in dry,Room Temperature

pka

13.34±0.10(Predicted)

form 

crystalline powder

color 

Sandy, light brown, granular

Safety

HS Code 

2906290090

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H332Harmful if inhaled

H335May cause respiratory irritation

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P310Immediately call a POISON CENTER or doctor/physician.

(2-Fluoro-3-nitrophenyl)methanol Chemical Properties,Usage,Production

Uses

2-Fluoro-3-nitrobenzyl Alcohol is used to prepare 2-oxo-2H-benzopyran derivatives as P27 protein inducers to treat diseases accompanying cell proliferation such as cancer, rheumatism and inflammations.

Synthesis

General procedure for the synthesis of 2-fluoro-3-nitrobenzyl alcohol from methyl 2-fluoro-3-nitrobenzoate: 1. DIBAL (115.7 mL, 1.0 M toluene solution) was slowly added to a toluene solution (92 mL) of methyl 2-fluoro-3-nitrobenzoate (9.22 g, 46.3 mmol) at -78 °C. 2. The reaction mixture was stirred at -78 °C for 30 min, then warmed to 0 °C and continued stirring for 30 min. 3. The reaction solution was cooled again to -78 °C and methanol, saturated Rochelle brine and ethyl acetate were added sequentially. 4. The mixture was transferred to room temperature, stirred for 1 hour and then extracted three times with ethyl acetate. 5. The organic layers were combined, washed with saturated brine and dried over anhydrous magnesium sulfate. 6. The organic phase was concentrated under pressure to give 2-fluoro-3-nitrobenzyl alcohol as a brown oil (7.52 g, 95% yield). 7. The product was analyzed by 1H NMR. 7. The product was confirmed by 1H NMR (CDCl3): δ 7.95 (m, 1H), 7.84 (t, 1H), 7.31 (t, 1H), 4.87 (s, 2H). 8. HPLC analysis: Rt = 7.52 min (conditions were the same as in the preparative embodiment of compound 3a-1).

References

[1] Patent: EP1982982, 2008, A1. Location in patent: Page/Page column 198
[2] Patent: EP2172198, 2010, A1
[3] Patent: KR101511396, 2015, B1. Location in patent: Paragraph 2895-2899