311773-89-4

Upstream product

• 623-27-8 terephthalaldehyde, 
• 57-13-6 urea 
• 123-54-6 acetylacetone 

Relevant academic research and scientific papers

Synthesis of some new bis-3,4-dihydropyrimidin-2(1H)-ones by using silica-supported tin chloride and titanium tetrachloride

Silica-supported tin chloride and titanium tetrachloride were prepared by the reaction of tin chloride and titanium tetrachloride with activated silica gel in refluxing toluene. These solid acids have been employed as the catalysts for the synthesis of bi

One pot synthesis of bis (dihydropyrimidinone) and tetrahydro-4H-chromenes derivatives using Ag2O/GO/TiO2 composite nanostructure

In this study, a simple and efficient synthesis reaction was used to prepare Bis (dihydropyrimidinone) derivatives through Biginelli condensation reaction of terephthalic aldehyde, 1,3-dicarbonyl compounds and (thio) urea or guanidine and tetrahydro-4H-ch

Preyssler heteropolyacid supported on silica coated NiFe2O4 nanoparticles for the catalytic synthesis of bis(dihydropyrimidinone)benzene and 3,4-dihydropyrimidin-2(1H)-ones

A novel magnetic acidic catalyst comprising Preyssler (H14[NaP5W30O110]) heteropoly acid supported on silica coated nickel ferrite nanoparticles (NiFe2O4@SiO2) was prepared. The

Unprecedented single-pot protocol for the synthesis of novel bis-3,4-dihydropyrimidin-2(1H)-ones using PEG-HClO4 as a biodegradable, highly robust and reusable solid acid green catalyst under solvent-free conditions

A solvent-free, environmentally benign, and simple one-pot multi-component protocol has been developed for the efficient synthesis of novel bis-3,4-dihydropyrimidin-2(1H)-one derivatives (4a-o) in excellent yields using perchloric acid-modified PEG-6000 (PEG-HClO4) as a biodegradable and reusable catalyst at ambient temperature. This novel and green protocol has the advantages of shorter reaction times, high conversions, use of an inexpensive catalyst and simple experimental procedure, as compared to the conventional methods. The PEG-HClO4 catalyst is characterized by using FTIR, powder XRD and SEM-EDX analyses. The catalyst can be reused several times without significant loss of its catalytic activity.

Microwave-assisted synthesis of Bis(dihydropyrimidinone)benzenes

Bis(dihydropyrimidinonoe)benzenes were synthesized in good to high yields by a pseudo four-component reaction of a dialdehyde such as terephthalic aldehyde or isophthalic aldehyde, (thio)urea and 1,3-dicarbonyl compounds using reusable nanosilica (average

Microwave-assisted solvent-free synthesis of bis(dihydropyrimidinone) benzenes and evaluation of their cytotoxic activity: Research article

An effective one-pot synthesis of bis(dihydropyrimidinonoe)benzenes using chlorotrimethylsilane (TMSCl) through Biginelli condensation reaction of terephthalic aldehyde, 1,3-dicarbonyl compounds and (thio)urea or guanidine under microwave irradiation cond