ChemicalBook CAS DataBase List Terephthaloyl chloride

Terephthaloyl chloride synthesis

14synthesis methods

Product Name:Terephthaloyl chloride
CAS Number:100-20-9
Molecular formula:C8H4Cl2O2
Molecular Weight:203.02

Synthesis of terephthaloyl chloride by thionyl chloride method: terephthalic acid is mixed with thionyl chloride, refluxed at 80℃ for 10-12h, then the thionyl chloride is evaporated, and the resulting crude product is distilled under reduced pressure to obtain the finished product.

100-21-0 Synthesis

100-21-0
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100-20-9
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Yield:100-20-9 100%

Reaction Conditions:

with thionyl chloride for 2 h;Reflux;

Steps:

1

The first step is the formation of terephthaloyl chloride. 10 ml of thionyl chloride was placed in a 50 mL single-necked flask, 3.3 g (20 mmol) of terephthalic acid was added, and heated to reflux for 2 h;Distill off excess thionyl chloride,4.0 g of phthaloyl chloride, the yield is 100%, and stored under dry conditions for use;

References:

CN109705086,2019,A Location in patent:Paragraph 0053-0055