Multisubstituted naphthalene synthesis from 4-hydroxy-2-pyrones through [4+2] cycloaddition with <i>o</i>-silylaryl triflates
作者:Koyo Numata、Shinya Tabata、Akihiro Kobayashi、Suguru Yoshida
DOI:10.1039/d3nj03831a
日期:——
for multisubstituted naphthalenesfrom 4-hydroxy-2-pyrones through cycloaddition with aryne intermediates is disclosed. Various highly functionalized 2-pyrones were synthesized through 4-hydroxy-2-pyrones in short steps. The resulting 2-pyrones reacted smoothly with a wide range of aryne intermediates generated from o-silylaryl triflates to provide multisubstituted naphthalenes by the Diels–Alder reaction