METHYL 2,6-DIFLUOROBENZOATE Chemical Properties

Boiling point:

203-204 °C (lit.)

Density 

1.281 g/mL at 25 °C (lit.)

refractive index 

n20/D 1.476(lit.)

Flash point:

203 °F

storage temp. 

Sealed in dry,Room Temperature

form 

fused solid

color 

White to off white

BRN 

1948618

CAS DataBase Reference

13671-00-6(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/38

Safety Statements 

26-36-26/37

WGK Germany 

3

HazardClass 

IRRITANT

HS Code 

29163990

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

METHYL 2,6-DIFLUOROBENZOATE Usage And Synthesis

Uses

Methyl 2,6-difluorobenzoate may be used in the synthesis of 9-hydroxy-13-(2,6-difluorophenyl)-3H-dibenzo[b,i]xanthen-3-one and 2,6-difluorobenzohydroxamic acid.

General Description

Methyl 2,6-difluorobenzoate is a fluorinated aromatic ester. It can be synthesized from 2,6-difluorobenzoic acid via esterification with methanol.

Synthesis

GENERAL METHOD: A catalytic amount of concentrated H2SO4 (0.1 mmol) was added to a methanol (50 mL) solution of 2,6-difluorobenzoic acid (1.0 mmol) and the mixture was heated to reflux for 6 hours. Upon completion of the reaction, the reaction mixture was cooled to room temperature. Subsequently, saturated NaHCO3 solution (50 mL) was added to the reaction mixture to neutralize the acidic conditions, and then the product was extracted with ethyl acetate (2 x 50 mL). The organic phases were combined, dried with anhydrous Na2SO4, filtered and concentrated under reduced pressure to give pure methyl 2,6-difluorobenzoate.

References

[1] Organic Process Research and Development, 2016, vol. 20, # 2, p. 233 - 241
[2] Medicinal Chemistry Research, 2016, vol. 25, # 4, p. 627 - 643
[3] Patent: WO2011/59610, 2011, A1. Location in patent: Page/Page column 101-102
[4] Patent: WO2013/71865, 2013, A1. Location in patent: Page/Page column 25
[5] Patent: CN103102349, 2017, B. Location in patent: Paragraph 0147-0149

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