Montmorillonite K-10 appeared to be an excellent catalyst for the condensation and successive lactonization reactions. Reaction of phthalaldehydic acid (2-carboxybenzaldehyde) with methylaryl and cyclic ketones was initiated by microwave irradiation and occurred in one step. The reactions were complete in 10–30 minutes providing excellent yields (90–98%).
描述了一种新的,固体酸催化的微波辅助的环境友好的
异苯并呋喃-1(3 H)-one的合成方法。
蒙脱石K-10似乎是缩合和后续内酯化反应的极佳催化剂。邻苯二酸(2-羧基
苯甲醛)与甲基芳基和环酮的反应是通过微波辐射引发的,并且一步进行。反应在10–30分钟内完成,可提供出色的收率(90–98%)。