An Efficient One‐Pot Synthesis of 1,2,3‐Triazole‐Fused Chromenes/Quinolines via Oxidative [3+2] Cycloaddition followed by Reductive Cyclization

A convenient and efficient one‐pot synthesis of 1,2,3‐triazole‐fused chromenes/ quinolines is developed. The methodology is based on oxidative azide‐olefin [3+2] cycloaddition followed by intramolecular reductive cyclization. This methodology affords fast and simple access to 1,2,3‐triazole‐fused heterocycles in good to excellent yields without necessitating chromatographic purification.