4-hydroxybenzaldehyde + formaldehyde => 4-vinylphenol + O2
4-hydroxybenzaldehyde + formaldehyde => 4-vinylphenol + o2
4-hydroxybenzaldehyde + formaldehyde => 4-vinylphenol + O2
4-hydroxybenzaldehyde + formaldehyde => 4-vinylphenol + o2