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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 9740Generated: October 23, 2026

Acetic Acid → P-Toluic Acid

https://huagongshe.com/en/reaction/9740

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantOxygenHCID 977—
ReactantP-Toluic AcidHCID 7470—
Reactant1,3,5-Trihydroxy-1,3,5-triazinane-2,4,6-trioneHCID 10419723—
CatalystCobalt diacetateHCID 6277—
CatalystManganous AcetateHCID 12525—
CatalystTitaniumHCID 23963—
SolventWaterHCID 962—
ProductP-Toluic AcidHCID 7470—
ProductTerephthalic AcidHCID 7489—

Reaction Conditions

Temperature150 °C

Reaction Steps

In a 500-ml titanium autoclave equipped with a stirrer and a pressure gauge, 15.36 g of p-toluic acid, 104.0 g of acetic acid, 0.066 g of hexahydro-1,3,5-trihydroxy-1,3,5-triazine-2,4,6-trione (1,3,5-trihydroxyisocyanuric acid) (0.33% by mole relative to p-toluic acid), 0.112 g of cobalt(II) acetate.4H2O and 0.277 g of manganese(II) acetate.4H2O were placed. The autoclave was charged with 2 MPa of oxygen gas and 2 MPa of nitrogen gas and placed in a heated oil bath. The mixture was stirred at 150° C. for 1 hour. After the completion of the reaction, the autoclave was placed on cold water to cool down the reaction mixture quickly. The resulting mixture was analyzed by high performance liquid chromatography and was found to yield terephthalic acid in 63% yield at 68% conversion of p-toluic acid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07091342B2
Source datasetuspto-grants-2006_08
ORD IDord-bd8297b3cf7f4124a97a04ca91aa86e8
Source noteuspto-grants-2006_08