Sodium 6,7-dihydroxynaphthalene-2-sulfonate (DHNS) is obtained by extending the π-conjugated system of catechol by a benzene ring and adding a substituent sodium sulfonate (−SO₃⁻Na⁺). Cooperative photocatalysis of DHNS−TiO₂ nanotubes with 4-amino-TEMPO shows the best activity towards the blue light-induced selective aerobic oxidation of benzylamine to N-benzylidenebenzylamine.

中文翻译：

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4-氨基-TEMPO协同光催化在TiO2纳米管上选择性好氧氧化胺

6,7-二羟基萘-2-磺酸钠（DHNS）是通过苯环扩展邻苯二酚的π-共轭体系并添加取代基磺酸钠（-SO ₃ ^- Na ⁺）而获得的。DHNS-TiO ₂纳米管与4-氨基-TEMPO 的协同光催化对蓝光诱导的苄胺选择性有氧氧化为N-亚苄基苄胺显示出最佳活性。