H3PW12O40 catalyzed synthesis of benzoxazine and quinazoline in aqueous media

Designing a new method for growing metal–organic framework (MOF) on MOF: synthesis, characterization and catalytic applications

“…By comparing with the previous reports in the literature, 83–85 a proposed mechanism for the condensation reaction of anthranilamide with aldehydes in the presence of Fe 3 O 4 -MAA@Co-MOF@Cu-MOF NPs is described in Scheme 3. Due to the coexistence of copper ( II ) and cobalt ( II ) sites in the structure of the nanocatalyst and also owing to the Lewis acid effect of these metals, they can easily catalyze the synthesis of 4(3 H )-quinazolinone derivatives with satisfactory yields (according to the experimental results).…”

Silica Chloride Catalyzed Efficient Synthesis of 2,3-Dihydroquinazoline-4(1h)-Ones Derivatives In Water

“…Such wide spectrum of quinazoline strongly demands possible derivatisation to test out for further pharmaceutical possibilities. Various methods have been proposed to obtained quinazoline analogues using catalysts like ammonium bromide [14], Zirconyl chloride [15] Heteropoly acids [16], Gallium (III) triflate [17], Titanium oxide nano-particles [18], Starch solution [19], cyanuric chloride [20] and Cyclodextrin sulphonic acid [21].Most of these methodologies are suffers from long reaction time, high temperature, use of expensive catalyst and tedious work procedures. 'On water' reports [22] of quinazoline synthesis by using expensive catalyst increase cost of reaction.…”