ðə ɹɪˈækʃən ʌvðə dˈɑːpɐmˌiːn dᵻɹˈɪvətˌɪvz təwˈɔːɹd ˈɑːksɪdʒən ɪz kˈæɾɐlˌaɪzd baɪ daɪvˈɜːs ˈɛnzaɪmz sˈʌtʃ ɐz lˈækeɪs, wˌɪtʃ kənvˈɜːt ðə kˈæɾɪkˌɑːl ɡɹˈuːps tə kwˈɪnɑːnz.
The reaction of the dopamine derivatives toward oxygen is catalyzed by diverse enzymes such as laccase, which convert the catechol groups to quinones.