12-Phosphomolybdic acid H3[PMo12O40] over natural bentonite as a heterogeneous catalyst for the synthesis of 3,4-dihydropyrimidin-2-(1H)-ones

Autor: Lakha V. Chopda, Pragnesh N. Dave
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Results in Chemistry, Vol 3, Iss , Pp 100169- (2021)
Druh dokumentu: article
ISSN: 2211-7156
DOI: 10.1016/j.rechem.2021.100169
Popis: 12-Phosphomolybdic acid H3[PMo12O40] (PMA) supported over natural bentonite. Various techniques such as XRD, FT-IR, FeSEM and EDS were used to characterize catalysts. The catalytic activity of three catalysts 10%, 20% and 30% PMA/bent studied for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones. The catalyst 30% PMA/bent displayed high activity towards the synthesis of a variety of dihydropyrimidones (DHPMs). The high yield of dihydropyrimidone (DHPM) was obtained in model reaction in ethanol, acetonitrile and solvent-free condition. The reusability test indicated that 4% of yield of product decreased after 5th cycle.
Databáze: Directory of Open Access Journals