A formal intermolecular [4 + 2] cycloaddition reaction of 1,3-disubstituted indoles and alkylquinones†
Abstract
A formal [4 + 2] cycloaddition reaction of 1,3-disubstituted indoles and alkylquinones was realized to furnish polycyclic indolines in good yields. This protocol proceeded smoothly under basic conditions, with high atom-economy and broad substrate scope.