Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
Molecules. 2012 Oct 26;17(11):12704-17. doi: 10.3390/molecules171112704.
A series of novel dispirooxindoles have been synthesized through three-component 1,3-dipolar cycloaddition of azomethine ylides generated in situ by the decarboxylative condensation of isatin and an α-amino acid with the dipolarophile 5-benzylidene-1,3-dimethylpyrimidine-2,4,6-trione. This method has the advantages of mild reaction conditions, high atom economy, excellent yields, and high regio- and stereo-selectivity.
通过靛红与α-氨基酸经脱羧缩合原位生成的亚胺叶立德与 5-亚苄基-1,3-二甲基嘧啶-2,4,6-三酮的 1,3-偶极环加成反应,合成了一系列新型的双螺环氧化吲哚。该方法具有反应条件温和、原子经济性高、产率高、区域和立体选择性好等优点。