An efficient L-proline catalyzed one-pot synthesis of 3-amino-alkylated indoles has been developed via a three-component Mannich-type reaction viz.secondary amines, aldehyde and indoles under solvent-free conditions at room temperature. Several amino acids (acidic, basic and neutral) have been screened for the reaction but the best results were obtained with L-proline.
                                    已开发出一种高效的
L-脯氨酸催化的一锅法合成3-
氨基烷基
吲哚,通过三组分Mannich反应,即在室温下无溶剂条件下的二级胺、醛和
吲哚。对多种
氨基酸(酸性、碱性和中性)进行了筛选,但最佳结果是使用
L-脯氨酸。