Results 1 to 10 of about 1,953 (199)

Stepping Further from Coupling Tools: Development of Functional Polymers via the Biginelli Reaction [PDF]

open access: yesMolecules, 2022
Multicomponent reactions (MCRs) have been used to prepare polymers with appealing functions. The Biginelli reaction, one of the oldest and most famous MCRs, has sparked new scientific discoveries in polymer chemistry since 2013.
Zeyu Ma, Bo Wang, Lei Tao
doaj   +6 more sources

Diverse Methods with Stereoselective Induction in the Asymmetric Biginelli Reaction [PDF]

open access: yesMolecules
The relevance of the asymmetric Biginelli reaction (ABR) has been increased in this century, due to the pharmacological application of its products. This review focuses predominantly on articles published in the period from 2015 to 2024 on asymmetric ...
Marcos Díaz-Fernández   +5 more
doaj   +8 more sources

Biginelli reaction catalyzed by copper nanoparticles. [PDF]

open access: yesPLoS ONE, 2012
We recently reported a novel synthesis of copper nanoparticles from copper sulphate utilizing the charge-compensatory effect of ionic liquid [bmim]BF(4) and ethylene glycol. The nanoparticles were characterized and found to be stable for one year.
Manika Dewan   +4 more
doaj   +5 more sources

Current progress in asymmetric Biginelli reaction: an update [PDF]

open access: yesMolecular Diversity, 2018
The Biginelli reaction, involving a three-component reaction of an aromatic aldehyde, urea and ethyl acetoacetate, has emerged as an extremely useful synthetic tool to organic chemists for the synthesis of 3,4-dihydropyrimidine-2-(1H)-ones and related heterocyclic compounds. In the past decades, the asymmetric variants of this reaction have been at the
Majid M Heravi   +2 more
exaly   +6 more sources

Efficient One-Pot Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones via a Three-Component Biginelli Reaction [PDF]

open access: yesMolecules, 2021
Multicomponent reactions are considered to be of increasing importance as time progresses due to the economic and environmental advantages such strategies entail.
Giovanna Bosica   +3 more
doaj   +2 more sources

Synthesis of diverse dihydropyrimidine-related scaffolds by fluorous benzaldehyde-based Biginelli reaction and post-condensation modifications [PDF]

open access: yesBeilstein Journal of Organic Chemistry, 2011
Dihydropyrimidinones and dihydropyrimidinethiones generated from the Biginelli reactions of perfluorooctanesulfonyl-attached benzaldehydes are used as common intermediates for post-condensation modifications such as cycloaddition, Liebeskind–Srogl ...
Bruno Piqani, Wei Zhang
doaj   +3 more sources

Anticancer Polymers via the Biginelli Reaction [PDF]

open access: yesACS Macro Letters, 2020
We developed a polymer-drug strategy to explore anticancer polymers. A series of monomers containing groups with potential anticancer activity have been facilely prepared through the Biginelli reaction. These monomers were used to produce water-soluble polymers through convenient radical copolymerization.
Yongsan Li   +6 more
openaire   +5 more sources

A Five-Component Biginelli-Diels-Alder Cascade Reaction [PDF]

open access: yesFrontiers in Chemistry, 2018
A new multi-component condensation was discovered during the reaction of a urea, β-keto ester, and formaldehyde. In the presence of catalytic indium bromide, a Biginelli dihydropyrimidinone intermediate was further converted to a five-component ...
Taber S. Maskrey   +3 more
doaj   +3 more sources

Modification of Starch via the Biginelli Multicomponent Reaction [PDF]

open access: yesMacromolecular Rapid Communications, 2019
AbstractAn efficient and straightforward modification of starch using renewable and commercially available aromatic aldehydes (benzaldehyde, vanillin, and p‐anisaldehyde) and urea via the Biginelli multicomponent reaction is reported in this work. First, starch acetoacetate (SAA) with a degree of substitution ranging from 1.4 to 2.5, depending on the ...
Eren Esen, Michael A. R. Meier
openaire   +7 more sources

Microwave-Assisted Biginelli Reaction: An Old Reaction, a New Perspective [PDF]

open access: yesCurrent Organic Synthesis, 2016
In this review, we tried to highlight the recent advances in the Biginelli reaction, leading to the synthesis of 3,4-dihydropyrimidin-2(1H)-ones, albeit only those conducted under microwave irradiation. The merits and drawbacks of these reactions are compared and discussed with those performed under conventional heating.
Mommahed Heravi, Majid   +2 more
core   +5 more sources

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