2-Chloro-3-methylbenzoic acid Chemical Properties

Melting point:

142-144°C

Boiling point:

288.7±20.0 °C(Predicted)

Density 

1.310±0.06 g/cm3(Predicted)

storage temp. 

Sealed in dry,Room Temperature

solubility 

soluble in Methanol

form 

powder to crystal

pka

3.08±0.25(Predicted)

color 

White to Light yellow to Light orange

CAS DataBase Reference

15068-35-6(CAS DataBase Reference)

Safety Information

Hazard Codes 

Xi,Xn

Risk Statements 

36/37/38-41-22

Safety Statements 

26-36/37/39-39

WGK Germany 

3

HazardClass 

IRRITANT

HS Code 

2916399090

2-Chloro-3-methylbenzoic acid Usage And Synthesis

Chemical Properties

Off-white powder

Uses

2-Chloro-3-methylbenzoic acid can be used in organic synthesis and experimental research.

Chemical Reactivity

2-Chloro-3-methylbenzoic acid is stable under proper conditions, it reacts with oxidizing agents.

Synthesis

General procedure for the synthesis of 2-chloroisophthalic acid and 2-chloro-3-methylbenzoic acid from 2,6-dimethylchlorobenzene: In a reaction system, 140 g of 2,6-dimethylchlorobenzene, 0.14 g of Co(OAc)2, 0.14 g of NaBr, and 14 g of acetic acid were added, and the system was heated to 95 °C with stirring until the catalyst was completely dissolved. 64 g of atmospheric pressure was introduced into the system and maintained for 6.7 hours. Sample tests were performed during the reaction and showed that 20% of the feedstock 2,6-dimethylchlorobenzene remained, 40% of the product 2-chloro-3-methylbenzoic acid, 30% of 2,6-dicarboxychloride, 5% of 2-chloro-3-carboxybenzaldehyde, and 5% of 2-chloro-3-methylbenzaldehyde. After completion of the reaction, the reaction solution was cooled to room temperature. After post-treatment, the solid product 2-chloro-3-methylbenzoic acid was obtained in 30% yield.

References

[1] Patent: CN108530297, 2018, A. Location in patent: Paragraph 0103; 0104

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