An improved synthetic pathway to the nanobelt‐like 1,1,9,9‐tetramethyl[9](2,11)teropyrenophane has been developed, and enables the synthesis of gram quantities of material. Key innovations are the development of a sequential chlorination/Friedel–Crafts alkylation reaction, a sequential iodination/Wurtz coupling reaction, and a room‐temperature teropyrene‐forming reaction. The teropyrenophane was found to form a very stable radical cation and undergo a completely regioselective fourfold bromination reaction.

中文翻译：

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1,1,9,9-四甲基[9]（2,11）邻苯二甲醛的革兰氏合成和高区域选择性溴化

已经开发出了一种改进的合成途径，可以合成纳米带状的1,1,9,9-四甲基[9]（2,11）萜品脱氧烷，并且可以合成克量的材料。关键的创新是依次进行氯化/ Friedel-Crafts烷基化反应，连续进行碘化/ Wurtz偶联反应和室温形成萜烯的反应。发现对苯二酚能够形成非常稳定的自由基阳离子，并进行完全区域选择性的四重溴化反应。