Preparation of Perhydroisoquinolines via the Intramolecular Diels−Alder Reaction of <i>N</i>-3,5-Hexadienoyl Ethyl Acrylimidates: A Formal Synthesis of (±)-Reserpine
作者:Steven M. Sparks、Arnold J. Gutierrez、Kenneth J. Shea
DOI:10.1021/jo0341362
日期:2003.6.1
The intramolecular Diels-Alderreaction of N-3,5-hexadienoyl ethyl acrylimidates provides an efficient method for the synthesis of cis-fused hexahydroisoquinolones. As a demonstration of the stereochemical control offered by this cycloaddition, two approaches to the construction of the DE rings of reserpine are reported. In the second entry, N-((4-(trimethylsilyl)ethoxymethoxy)methyl-6-benzyloxy-3Z