Irreversible<i>endo</i>-Selective Diels-Alder Reactions of Substituted Alkoxyfurans: A General Synthesis of<i>endo</i>-Cantharimides
作者:Robert W. Foster、Laure Benhamou、Michael J. Porter、Dejan-Krešimir Bučar、Helen C. Hailes、Christopher J. Tame、Tom D. Sheppard
DOI:10.1002/chem.201406286
日期:2015.4.13
The [4+2] cycloaddition of 3‐alkoxyfurans with N‐substituted maleimides provides the first general route for preparing endo‐cantharimides. Unlike the corresponding reaction with 3H furans, the reaction can tolerate a broad range of 2‐substitued furans including alkyl, aromatic, and heteroaromatic groups. The cycloaddition products were converted into a range of cantharimide products with promising