Succinic acid as a green and bio-based catalyst assisted solvent-free one-pot biginelli synthesis of biologically active 3,4-dihydropyrimidin-2-(1h)-ones/thiones derivatives
Succinic acid as a bio-based green and versatile catalyst has been
employed for one-pot facile three-component Biginelli synthesis of 3,4-
dihydropyrimidin-2-(1H)-ones/thiones derivatives under solvent-free conditions
with high to excellent yields and short reaction times. This sustainable
procedure has notable benefits such as easy-to-handle, green, low-cost and
non-toxic catalyst, materials available, simple work-up with no necessity of
chromatographic purification steps, one-pot and solvent-free conditions. The
products have been characterized by melting points and 1H NMR spectroscopy.