Bicycloporphyrin (CP) is important as a soluble precursor of tetrabenzoporphyrin (BP). 5-Substituted CPs were obtained via selective bromination of the meso position and coupling reactions using a Pd catalyst. 5,15-Disubsutituted BPs were obtained from 5-subsutituted CPs via bromination, a coupling reaction, and a retro-Diels-Alder reaction. We also synthesized an asymmetric 5,15-disubstituted BP with donor–acceptor functions.

中文翻译：

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不对称5,15-二取代的四苯并卟啉的合成

双环卟啉（CP）作为四苯并卟啉（BP）的可溶性前体非常重要。通过介孔位置的选择性溴化和使用Pd催化剂的偶联反应获得5位取代的CP 。通过溴化，偶联反应和逆-Diels-Alder反应，从5-取代的CP中获得5,15-取代的BP 。我们还合成了具有供体-受体功能的不对称5,15-二取代BP。