A wide variety of 2-amino-4H-chromene derivatives with diverse substituents on the 4H-
chromene ring were efficiently prepared via one-pot, three-component reaction of an …

Considering highly important biological and medicinal properties of chromenes, synthesis of
these heterocycles has attracted the interest of medicinal and organic chemists. This review …

Naphthol or β-naphthol is an important starting material that has drawn great attention in
various organic transformations because of its attributes, such as low cost, easy to handle …

An improved one-pot three-component and environmentally benign approach for the
synthesis of a wide range of densely functionalized 2-amino-3-cyano-4H-pyran annulated …

The preparation of pharmaceutically active 2-amino-4H-chromene derivatives has been
achieved using a nano powder of natural clinoptilolite (CP) zeolite. A wide range of these …

The magnetic biocompatible rod‐like ZnS/CuFe2O4/agar organometallic hybrid catalyst was
designed and prepared based on a natural macromolecule (agar) through a green and …

An efficient and environmentally benign method has been developed for the synthesis of 2-
amino-4H-chromene derivatives via one-pot multi component condensation of resorcinol (1) …

This research developed a new nanocatalyst by incorporating nanocopper iodide onto the
surface of a layered double hydroxides modified. This new nanocatalyst enables the green …

Silica-bonded N-propylpiperazine sodium n-propionate (SBPPSP) was found to act as an
efficient solid base for the preparation of a series of 4H-benzo [b] pyran derivatives. SBPPSP …

A one-pot efficient, green, practical, and environmentally friendly multicomponent synthesis
of 5-oxo-4-aryl-5, 6, 7, 8-tetrahydro-4H-chromenes, ethyl-6-amino-4-aryl-5-cyano-2-methyl …