Phenol → endo-Dicyclopentadiene

Participants

Reaction Conditions

Reaction Steps

To a reactor equipped with a stirrer, condenser, thermowell and heater add 1882 gms (20 moles) of phenol and 8 gms (0.4% based on total weight) of boron trifluoride etherate. Heat to 70° C. and add 132 gms (~1 mole) of a C10 diene stream containing mainly dicyclopentadiene and cyclopentadiene-isoprene codimers over a 20 minute (1200 s) period. Increase the temperature to 150° C. over a 3 hour (10,800 s) time period and hold for about 3 hours (10,800 s). Distill off unreacted phenol with a finishing temperature of 210° C. and less than 5 mm Hg. The recovered product is a dicyclopentadiene bisphenol with an average functionality of 2.07.

Provenance & Evidence