Phenol → endo-Dicyclopentadiene

Participants

Reaction Conditions

Reaction Steps

To a reactor equipped as in Example 1-A were added 2823 gms (30 moles) of phenol and 16.1 gms of BF3 etherate in 20 gms of carbon tetrachloride. The mass was heated to 55° C. and 1201.2 gms (9.09 moles) of a 99.9% reactive C10 hydrocarbon stream consisting mainly of dicyclopentadiene and cyclopentadiene isoprene codimers was added over a 4 hour (14400 s) period. The temperature of the reaction mass was 80° C. after the hydrocarbon addition period. The reactor was heated to 150° C. over a 7 hour (25200 s) period and a vacuum distillation begun. The reaction was finished at 245° C. and 1 mm Hg. The resin had an equivalent weight of 187, a melt point of 115° C. and an average functionality of 2.95.

Provenance & Evidence