Phosphine-Catalyzed Rauhut-Currier Domino Reaction: A Facile Strategy for the Construction of Carbocyclic Spirooxindoles Skeletons
作者:Chongchong Hu、Qinglong Zhang、You Huang
DOI:10.1002/asia.201300650
日期:2013.9
Push‐over: A novel dominoreaction of activated conjugated dienes and methyleneindolinones incorporates a phosphine‐catalyzed intermolecular Rauhut–Currier to form two CC bonds and a quaternary carbon center. This method can be used to synthesize spirocyclopenteneoxindoles skeletons, which are potential building blocks for biologically active compounds.
New strategy: A novel phosphine‐catalyzed domino reaction of activated conjugated dienes and electron‐deficient olefins was developed. In this reaction, intermolecular Rauhut–Currier reaction was successfully incorporated in a domino process, and a variety of highlyfunctionalized cyclopentenes were obtained in good yields and diastereoselectivities. Two new CC bonds were formed together with a quaternary