An Efficient, Overall [4+1] Cycloadditon of 1,3-Dienes and Nitrene Precursors
作者:Qiong Wu、Jian Hu、Xinfeng Ren、Jianrong Steve Zhou
DOI:10.1002/chem.201101630
日期:2011.10.4
Intermolecular cycloadditions of conjugated dienes and nitreneprecursors usually produce aziridines. A generally useful method was lacking to directly provide the [4+1] cycloadducts, 3‐pyrrolines. We have realized this transformation by using an uniquely active catalyst, copper(II) 1,1,1,5,5,5‐hexafluoroacetylacetonate ([Cu(hfacac)2]). The method is applicable to a wide array of dienes with good yields