A pragmatic and swift method for the synthesis of Benzo[a]pyrano[2,3-c]phenazine derivatives via one pot, multicomponent strategy by employing β-cyclodextrin in EtOH:H2O (1:1) solvent at 70 °C has been documented here. Utilization of supramolecular catalyst β-cyclodextrin which is highly efficient, green, biodegradable and reusable catalyst augments the synthesis amazingly, is the key feature of the current pathway. The catalyst could be recovered for four successive cycles without significant loss in catalytic activity.

中文翻译：

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一种通过超分子催化制备苯并[a]吡喃并[2,3-c]吩嗪的便捷绿色合成方法

通过在 70 °C 的 EtOH:H2O (1:1) 溶剂中使用 β-环糊精，通过一锅多组分策略合成苯并 [a] 吡喃并 [2,3-c] 吩嗪衍生物的一种实用且快速的方法记录在这里。使用高效、绿色、可生物降解和可重复使用的超分子催化剂β-环糊精极大地促进了合成，是当前途径的关键特征。催化剂可以在四个连续循环中回收而催化活性没有显着损失。