The Kulinkovich Reaction on Lactones. A Convenient Approach to Functionalized Cyclopropanols
作者:Annamaria Esposito、Maurizio Taddei
DOI:10.1021/jo0011944
日期:2000.12.1
Asymmetric Organocatalysis Enables Rapid Assembly of Portimine Precursor Chains
作者:Liubo Li、Anton El Khoury、Brennan O’Neil Clement、Carolyn Wu、Patrick G. Harran
DOI:10.1021/acs.orglett.2c00556
日期:2022.4.15
Sequential organocatalytic additions of 2-furanone and dihydroxyacetone derivatives to a crotonaldehyde lynchpin provide polyhydroxylated chains reminiscent of lactonized deoxo Kdn type sugars. Further homologation via Kulinkovich ringopening of the butyrolactone and acylation of the zinc homoenolate derived from the incipient cyclopropanol allows assembly of functionalized chain precursors to portimine