A green and convenient method for the synthesis of 2-amino-3-phenylsulphonyl-4H-chromenes by a one-pot three-component condensation of 1-naphthol, phenylsulphonylacetonitrile and aromatic aldehydes under solvent-free conditions using potassium phosphate tribasic trihydrate as an efficient catalyst is described. The reaction of 1-naphthol with phenylsulphonylacetonitrile and various aromatic...

One of the important Multi-component reaction (MCRs) is the synthesis of dihydropyrano chromene derivatives by one-pot reaction. In this research, an inexpensive and effective one pot three component procedure with good yields for the synthesis of dihydro pyrano chromenes is reported. In this method, the synthesis of pyrano chromene derivatives was followed by using 4-hydroxycoumarin, malononit...

In this work, we report for the first time a new methodology eco-synthesis of 2-amino-4H-chromenes 1, from salycilaldehydes and cyano compounds, under solvent-free mild conditions, using amino-grafted MOFs as catalysts. The selected − commercial CuBTC MIL-100(Sc) previously synthetized in our laboratories can be easily functionalyzed with amines different nature showing notable differences thei...