331950-33-5

Upstream product

• 769-42-6 1,3-dimethylbarbituric acid 
• 3132-99-8 m-bromobenzoic aldehyde 
• 109-77-3 malononitrile 

Relevant academic research and scientific papers

The first urea-based ionic liquid-stabilized magnetic nanoparticles: An efficient catalyst for the synthesis of bis(indolyl)methanes and pyrano[2,3-d]pyrimidinone derivatives

Urea-based ionic liquid stabilized on silica-coated Fe3O4 magnetic nanoparticles, {Fe3O4atSiO2@(CH2)3-Urea-SO3H/HCl}, as an unexceptionable and smooth releasing urea f

Synthesis of pyrano[2,3‐d]pyrimidines and pyrido[2,3‐d]pyrimidines in the magnetized deionized water based on UV–visible study

Abstract: A green synthetic route to the facile one-pot multicomponent synthesis of pyrano[2,3‐d]pyrimidines and pyrido[2,3‐d]pyrimidines have been developed using magnetized deionized water (MDW) as a green solvent under catalyst-free conditions. All rea

Synthesis, characterization and application of ZnFe2O4 nanoparticles as a heterogeneous ditopic catalyst for the synthesis of pyrano[2,3-d] pyrimidines

In the present work, ZnFe2O4 nanopowder, as a highly efficient and heterogeneous catalyst, was prepared and fully characterized by IR, UV, XRD, EDX and SEM analysis. The nanocatalyst was employed as a highly stable and reusable catal

Solvent-free multicomponent assembling of aldehydes, N,N′-dialkyl barbiturates and malononitrile: Fast and efficient approach to pyrano[2,3-d]pyrimidines

Potassium fluoride-catalyzed solvent-free multicomponent reaction of aldehydes, N,N′-dialkyl barbiturates and malononitrile results in the fast (15 min) and efficient (yields 89-95%) formation of substituted pyrano[2,3-d]pyrimidines. The improved syntheti

Nickel nanoparticles as semiheterogeneous catalyst for one-pot, three-component synthesis of 2-amino-4H-pyrans and pyran annulated heterocyclic moieties

An efficient route for the synthesis of 2-amino-4H-pyrans and pyran annulated heterocyclic moieties has been reported via one-pot tandem Knoevenagel-cyclocondensation of aldehydes, malononitrile, and carbocyclic/heterocyclic 1,3-diones in the presence of

Ultrasonic-promoted one-pot synthesis of 4H-chromenes, pyrano[2,3-d] pyrimidines, and 4H-pyrano[2,3-c]pyrazoles

A facile and versatile procedure has been explored for the synthesis of 2-amino-5-oxo-5,6,7,8-tetrahydro-4H-chromenes, pyrano[2,3-d]pyrimidines and 1,4-dihydropyrano[2,3-c]pyrazole-5-yl cyanides. This protocol employs the one-pot three-component condensat

Electrocatalytic multicomponent assembling of aldehydes, N-alkyl barbiturates and malononitrile: An efficient approach to pyrano[2,3-d] pyrimidines

Electrochemically induced multicomponent reaction of aldehydes, N-alkyl barbiturates and malononitrile in alcohols in an undivided cell leads to substituted pyrano[2,3-d]pyrimidines in 70-80% substance yields and 700-800% current yields.