Pyridine → HCID 9500233, compound

Participants

Reaction Steps

1,2,4-trimellitic anhydride acid chloride (120 mmole) was dissolved in 60 mL of anhydrous THF. Fluorene-9-bisphenol (60 mmole) and pyridine (14.5 mL) were dissolved in another 100 mL of anhydrous THF, and then slowly and dropwise added into the 1,2,4-trimellitic anhydride acid chloride solution under nitrogen, and then completely reacted at 40° C. for 12 hours. The reaction result was filtered to remove the salt thereof, and the solvent of the filtrate was removed by a rotary evaporator to obtain a solid. The solid was washed with n-hexane and re-crystallized from acetic anhydride two times to obtain a white solid (yield=75%). The 1H NMR spectrum of the white solid is listed below: 1H NMR (CDCl3, 400 MHz, ppm): 8.77 (s, 2H), 8.69 (d, 2H), 8.14 (d, 2H), 7.82 (d, 2H), 7.43 (m, 4H). The above-mentioned reaction is represented as:

Provenance & Evidence