Phenol → Phenol--2,6,6-trimethylbicyclo(3.1.1)hept-2-ene (1/1)

Participants

Reaction Steps

Using the process of Example I, 60.1 parts of phenol in 269.2 parts of solvent, 1.5 parts diethyl ether complex of boron trifluoride and 189.9 parts of α-pinene (an α-pinene to phenol ratio of 2.2:1) were reacted to form an α-pinene-phenol resin in a 97% yield with a ring and ball softening point of 109° C. The resin had a color of 5+ on the Gardner scale.

Provenance & Evidence