A green metal-free "one-pot" microwave assisted synthesis of 1,4-dihydrochromene triazoles

The synthesis of several 4-aryl-1,4-dihydrochromene-triazoles was achieved via a metal-free "one-pot" procedure using PEG400 as the sole solvent in an eco-friendly process. Using microwave irradiation, the triazole derivatives were obtained in good yields and short reaction times starting from readily accessible building blocks. A straightforward metal-free "one-pot" microwave procedure using PEG400 as the sole solvent in an eco-friendly process for the synthesis of 4-aryl-1,4-dihydrochromene-triazoles is described.