Gold(<scp>i</scp>)-catalyzed diastereo- and enantioselective [4 + 3] cycloadditions: construction of functionalized furano-benzoxepins

Abstract

Highly diastereo- and enantioselective [4 + 3] cycloadditions of 2-(1-alkynyl)-2-alken-1-ones with o -QMs have been realized via a simple chiral gold catalysis, providing facile access to various functionalized furano-benzoxepins.