A straightforward and solventless synthesis of pyrroles was developed by using mechanochemical activation and a biosourced organic acid as the catalyst. Relative to traditional Paal–Knorr methodologies, various N-substituted pyrroles were obtained in very short reaction times. By reaction with unreactive diketones, desymmetrized aliphatic and aromatic compounds were also synthesized.
通过使用机械化学活化和生物来源的有机酸作为催化剂,开发了一种简单且无溶剂的吡咯合成方法。相对于传统的 Paal-Knorr 方法,可以在很短的反应时间内获得各种 N 取代的吡咯。通过与不活泼的二酮反应,还合成了去对称的脂肪族和芳香族化合物。