193623-15-3

Upstream product

• 2929-93-3 p-tolylmethylenediacetate 
• 105-45-3 acetoacetic acid methyl ester 
• 57-13-6 urea 
• 123-11-5 4-methoxy-benzaldehyde 
• 589-18-4 4-Methylbenzyl alcohol 
• 104-87-0 4-methyl-benzaldehyde 

Relevant academic research and scientific papers

Ceria/vinylpyridine polymer nanocomposite: An ecofriendly catalyst for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones

The three-component condensation of aldehydes, β-ketoesters and urea has been carried out in water using ceria (cerium oxide, CeO2) nanoparticles supported on poly(4vp-co-dvb) as a catalyst for the preparation of 3,4-dihydropyrimidin-2(1H)-ones

MCM-41 supported perchloric acid for efficient synthesis of 3,4-dihydropyrimidin-2-(1H)-ones via Biginelli reaction

Mesoporous silica (MCM-41) supported perchloric acid has been synthesized efficiently via wet impregnation method. The new catalyst is characterized well with small angle X-ray scattering, FT-IR, BET, TGA, EDX, SEM analyses, and chemical mapping technique

One-pot three component synthesis of substituted dihydropyrimidinones using fruit juices as biocatalyst and their biological studies

New and facile one-pot three component approach for the synthesis of substituted dihydropyrimidinones derivatives (4a-4h) from reaction of equimolar substituted aldehydes (1a-1h), methyl acetoacetate (2a) and urea (3a) in presence of nature derived cataly

Chitosan-silica sulfate nano hybrid: An efficient biopolymer based-heterogeneous nano catalyst for solvent-free synthesis of 3,4-dihydropyrimidine-2(1H)-one/thiones

A green and highly efficient approach for the synthesis of 3,4-dihydropyrimidine-2(1H)-one/thione derivatives is described. In this approach, the three-component Biginelli reaction between (thio)urea, methyl acetoacetate and aldehydes under solvent-free c

Sulfonic Acid and Ionic Liquid Functionalized Covalent Organic Framework for Efficient Catalysis of the Biginelli Reaction

A quinoline-linked and ionic liquid-decorated covalent organic framework was prepared by incorporation of a multicomponent Povarov reaction and postsynthetic modification. The imidazolium and sulfonic acid-decorated COF-IM-SO3H can be a highly efficient B

Fabrication of porous ultrathin carbon nitride nanosheet catalysts with enhanced photocatalytic activity for N- And O-heterocyclic compound synthesis

A simple and efficient photocatalytic method for the synthesis of dihydropyrimidinones (DHPMs) and their derivatives via porous ultrathin carbon nitride nanosheets (p-CNNs) without solvents was demonstrated. The yields of 3,4-dihydropyrimidin-2(1H)-ones/t

The new life of traditional water treatment flocculant polyaluminum chloride (PAC): A green and efficient micro-nano reactor catalyst in alcohol solvents

Polyaluminum chloride (PAC) is an inorganic polymer material that has the advantages of a simple preparation process and special electronic structure. It is considered to be the most efficient and widely used flocculation material for water treatment. In

ZnO Nanoparticles Embedded on a Reduced Graphene Oxide Nanosheet (ZnO?NPs@r-GO) as a Proficient Heterogeneous Catalyst for a One-Pot A3-Coupling Reaction

This study reports a simple and facile route for the synthesis of ZnO nanoparticles (ZnO?NPs) decorated on reduced graphene oxide nanosheet (ZnO?NPs@r-GO) as a heterogeneous catalyst and tested over multicomponent one-pot A3-coupling reaction.

Synthesis and characterization of the immobilized polythiophene on magnetic carbon nanotube as a prominent catalyst for the synthesis of dihydropyrimidinone and octahydroquinazolinone derivatives

Abstract: In this work, the immobilized polythiophene on magnetic carbon nanotube (CNT–Fe3O4–PTh) was synthesized and introduced as a novel and recoverable catalytic system. The prepared magnetic heterogeneous nanocatalyst was characterized by FT-IR, TGA, EDX, VSM, XRD, TEM, and FE-SEM. Next, the catalytic efficiency of CNT–Fe3O4–PTh was evaluated through the green synthesis of a variety of dihydropyrimidinone and octahydroquinazolinone through Biginelli reaction between aromatic aldehydes, urea/thiourea, and β-dicarbonyl compounds under solvent-free conditions. The catalyst was magnetically recovered and recycled for five cycles without a discernible loss in its catalytic activity. Simple workup, affordability, short reaction times, mild reaction conditions, and the high yield of products are the interesting features of this project. Graphic abstract: An environmentally benign nanocomposite was prepared using carbon nanotube as an inexpensive, nontoxic, and stable support in the preparation of CNT–Fe3O4–PTh, which was efficiently used as catalyst for the green synthesis of dihydropyrimidinone and octahydroquinazolinone derivatives through Biginelli reaction under solvent-free conditions.[Figure not available: see fulltext.].

Recyclable triphenylbismuth (V) bisperfluorooctanesulfonate catalyzed synthesis of dihydropyrimidinones

– Triphenylbismuth(V) bisperfluorooctanesulfonate Ph3Bi(OSO2C8F17)2 was successfully synthesized by treatment of Ph3BiCl2 with C8Fl7SO2OAg, and was found to have the nature of air-stability, water tolerance, high thermal stability and strong Lewis acidity