METHYL 2,3-DICHLOROBENZOATE Chemical Properties

Melting point:

33-38 °C

Boiling point:

294.45°C (rough estimate)

Density 

1.36

refractive index 

1.5537

Flash point:

110 °C

storage temp. 

Sealed in dry,Room Temperature

solubility 

Chloroform (Slightly), Methanol (Slightly)

form 

Solid

color 

White to Off-White

EPA Substance Registry System

Benzoic acid, 2,3-dichloro-, methyl ester (2905-54-6)

Safety Information

Hazard Codes 

Xi

Risk Statements 

36/37/38

Safety Statements 

37/39-26

HS Code 

29163900

MSDS

• Language:English Provider:ACROS

METHYL 2,3-DICHLOROBENZOATE Usage And Synthesis

Chemical Properties

white crystals

Synthesis

a) 2,3-Dichlorobenzoic acid (100 g, 0.526 mol) was dissolved in methanol (1 L) and concentrated sulfuric acid (20 mL) was added slowly. The reaction mixture was stirred under reflux conditions for 12 hours. After completion of the reaction, it was cooled to room temperature and concentrated under reduced pressure to remove most of the solvent. The residue was diluted with ethyl acetate (1 L) and water (100 mL) and the organic layer was separated. The organic phase was washed sequentially with saturated sodium bicarbonate solution and brine and dried over anhydrous sodium sulfate. After filtration, the filtrate was concentrated under reduced pressure to afford methyl 2,3-dichlorobenzoate (99 g, 92% yield) as a white solid.1H NMR (300 MHz, CDCl3) δ ppm: 3.95 (s, 3H), 7.27 (t, J = 7.8 Hz, 1H), 7.60 (dd, J = 1.8, 7.8 Hz, 1H), 7.66 (dd, J = 1.8, 7.8 Hz, 1H).

References

[1] Patent: WO2013/28263, 2013, A1. Location in patent: Page/Page column 78
[2] Patent: US9096605, 2015, B2
[3] Patent: EP459830, 1991, A1

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