Intramolecular Parallel [4+3] Cycloadditions of Cyclopropane 1,1-Diesters with [3]Dendralenes: Efficient Construction of [5.3.0]Decane and Corresponding Polycyclic Skeletons
作者:Chi Zhang、Jun Tian、Jun Ren、Zhongwen Wang
DOI:10.1002/chem.201605190
日期:2017.1.26
developed [4+3]IMPC (intramolecular parallel cycloaddition) of cyclopropane 1,1‐diesters with [3]dendralenes. With a combination of the [4+3]IMPC and subsequent [4+n] cycloadditions, trans‐[5.3.0]decane skeleton and its corresponding structurally complex and diverse polycyclic variants could be constructed efficiently. This novel [4+3] cycloadditionreaction mode of donor–acceptorcyclopropanes proceeds
Synthesis of Chiral Aza‐[n.2.1] Skeletons by Separable Epimers of Intramolecular [3+2] Cross Cycloaddition of Cyclopropane 1,1‐Diesters with Chiral Sulfinylimines
作者:Miao‐Miao Xia、Feng‐Xing Li、You‐Ping Ma、Le‐Le Song、Yan‐Ni Hou、Zi‐Fa Shi、Xiao‐Ping Cao
DOI:10.1002/adsc.201901543
日期:2020.3.4
Reported herein is the construction of chiral aza‐[n.2.1] skeletons by separable epimers of intramolecular [3+2] cross cycloaddition of cyclopropane 1,1‐diesters with chiral sulfinylimines. The epimer products can be separated by silica gel column chromatography.