Phenol can have carbon atom single-bonded to benzene {R group}, which is single-bonded to hydroxyl {phenyl}, -R-CH2-O-H [2 is subscript].
Aromatic compounds {furan} can have four carbon atoms and one oxygen atom in ring. Tetrahydrofuran can dissolve in water.
Aromatic compounds {pyran} can have five carbon atoms and one oxygen atom in ring.
5-Chemistry-Organic-Chemical-Oxygen
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Date Modified: 2022.0225