中文摘要：

有 dienones 的 benzofuranone 的两倍迈克尔反应由基于辛可宁的主要的胺催化的 enantioselective 被开发。很多光学地活跃的 spirocyclic benzofuranones 在多达 89% 产量和 91% ee 被获得。

英文摘要：

The enantioselective double Michael reaction of benzofuranone with dienones catalyzed by Cinchona-based primary amines was developed. A number of optically active spirocyclic benzofuranones were obtained in up to 89% yield and 91% ee.