In a two‐step approach, using a Pictet–Spengler cyclization followed by a thermally induced ring‐closing reaction, a variety of planar oxygen‐containing 2D polyaromatics with distinct photophysical properties are accessible.

中文翻译：

---

苯并吡喃酮稠合的N-杂环聚芳烃

采用两步法，先进行Pictet-Spengler环化反应，然后进行热诱导的闭环反应，即可获得具有不同光物理性质的各种平面含氧2D聚芳族化合物。