Regulable selective synthesis of benzofurans and coumarins from aryl propargyl ethers via electrochemical tandem cyclization reaction

A divergent protocol for the selective synthesis of benzofuran-2-carboxaldehydes and 3-organoselenyl-2H-coumarins from propargylic aryl ethers in the presence of dialkyl(aryl) diselenides under electrochemical reaction conditions was established. By adjusting the...