[4+2] Annulation of Vinyl Ketones Initiated by a Phosphine-Catalyzed Aza-Rauhut-Currier Reaction: A Practical Access to Densely Functionalized Tetrahydropyridines
作者:Zugui Shi、Qinjie Tong、Wendy Wen Yi Leong、Guofu Zhong
DOI:10.1002/chem.201201318
日期:2012.8.6
The first example of phosphine catalyzed aza‐Rauhut–Currier reaction initiated [4+2] annulation of vinyl ketones with N‐sulfonyl‐1‐aza‐1,3‐dienes has been disclosed. Under the ambient conditions, this protocol provides a practical access to valuable densely functionalized tetrahydropyridines in good to excellent yields and high diastereoselectivities (see scheme).