IN333576: An improved process for the synthesis of 2H-Chromenes

Disclosed herein the cost effective process for the synthesis of 2H-chromene compounds with good yields. Particularly the invention relates to transition-metal free synthesis of 2H-chromene compounds characterized by coupling 2-trimethylsilylaryl triflates and a, 8-unsaturated aldehyde under ambient reaction condition to ameliorate the yield of the desired 2H-chromenes.