HCID 11344952, compound → 1,3-Dioxooctahydroisobenzofuran-5-carboxylic acid

Participants

Reaction Conditions

Reaction Steps

Into a four-necked flask equipped with a thermometer, a stirrer, a condenser and a temperature controller, 100 parts by mass of cyclohexane-1,2,4-tricarboxylic acid was placed and melted by heating at 250° C. for 3 hours while formed water was removed to the outside of the system with a stream of nitrogen gas, and 1,2,4-cyclohexanetricarboxylic acid 1,2-anhydride was obtained. as a light yellow transparent liquid substance The yield of the anhydride was 95% based on the amount of cyclohexane-1,2,4-tricarboxylic acid used as the raw material. The obtained liquid 1,2,4-cyclohexanetricarboxylic acid had a viscosity of 14.6 Pa·s at 60° C.

Provenance & Evidence