[C:1]1([OH:7])C=CC=CC=1.[C:8]1([CH:15]=[CH:14][CH:13]=[C:11](O)[CH:10]=1)[OH:9].C1(C=CC(O)=CC=1)O.OC1C=CC(CC2C=CC(O)=CC=2)=CC=1.OC1C=CC(C(C2C=CC(O)=CC=2)(C)C)=CC=1.BrC1C=C(C(C2C=C(Br)C(O)=C(Br)C=2)(C)C)C=C(Br)C=1O.C1C(O)=CC=C(S(C2C=CC(O)=CC=2)(=O)=O)C=1>>[CH2:1]=[O:7].[C:8]1([OH:9])[CH:15]=[CH:14][CH:13]=[CH:11][CH:10]=1The epoxide compounds may also derive from monocyclic phenols, for example from phenol, resorcinol or hydroquinone; or they are based on polycyclic phenols, for example bis(4-hydroxyphenyl)methane, 2,2-bis(4-hydroxyphenyl)propane, 2,2-bis(3,5-dibromo-4-hydroxyphenyl)propane, 4,4′-dihydroxydiphenyl sulphone, or condensation products, obtained under acidic conditions, of phenols with formaldehyde, such as phenol novolacs.
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