Construction of Naphtho-Fused Oxindoles <i>via</i> the Aryne Diels–Alder Reaction with Methyleneindolinones

Abstract

Unprecedented aryne Diels–Alder reactions by using methyleneindolinones as dienes have been disclosed, thus providing a quick access to unusual naphtho-fused oxindoles. A wide range of methyleneindolinones proceed readily with arynes to afford the functionalized oxindoles in good yields