Results 81 to 90 of about 971 (170)

STARCH SULFURIC ACID: AN ALTERNATIVE, ECO-FRIENDLY CATALYST FOR BIGINELLI REACTION [PDF]

Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2013
The one-pot multicomponent synthesis of 3,4-dihydropyrimidinone derivatives using starch sulfuric acid as an environmentally friendly biopolymer-based solid acid catalyst from aldehydes, β-keto esters and urea/ thiourea without solvent is described ...
Ramin Rezaei, Sara Malek, Mohammad Reza Sheikhi, Mohammad Kazem Mohammadi   +3 more
doaj  

A microdroplet-accelerated Biginelli reaction: mechanisms and separation of isomers using IMS-MS. [PDF]

Chem Sci, 2019
Sahota N, AbuSalim DI, Wang ML, Brown CJ, Zhang Z, El-Baba TJ, Cook SP, Clemmer DE.   +7 more
europepmc   +1 more source

Efficient sodium selenate-catalyzed synthesis of 3,4-dihydro-2(1H)-pyrimidinones and –thiones under solvent-free conditions

Bulletin of the Chemical Society of Ethiopia, 2009
Sodium selenate efficiently catalyzes the three-component Biginelli reaction of an aldehyde, a,β-keto ester and urea or thiourea under solvent-free conditions to afford the corresponding 3,4-dihydropyrimidin-2(1H)-ones or –thiones in excellent yields.
Rahim Hekmatshoar, Maryam Heidari, Majid M. Heravi, Bita Baghernejad   +3 more
doaj  

A comparative study between Cu(INA)₂-MOF and [Cu(INA)₂(H₂O)₄] complex for a click reaction and the Biginelli reaction under solvent-free conditions. [PDF]

RSC Adv, 2020
Mansano Willig JC, Granetto G, Reginato D, Dutra FR, Poruczinski ÉF, de Oliveira IM, Stefani HA, de Campos SD, de Campos ÉA, Manarin F, Botteselle GV.   +10 more
europepmc   +1 more source

Piperazine-grafted magnetic graphene oxide as a sustainable heterogeneous catalyst for solvent-free Biginelli reaction. [PDF]

RSC Adv
Rezaei-Seresht E, Jalambadani F, Cheshak S, Mahdavi B, Tafazzoli Gazkoh F.   +4 more
europepmc   +1 more source

Tuning the Biginelli reaction mechanism by the ionic liquid effect: the combined role of supported heteropolyacid derivatives and acidic strength. [PDF]

RSC Adv, 2019
Freitas EF, Souza RY, Passos STA, Dias JA, Dias SCL, Neto BAD.   +5 more
europepmc   +1 more source

N-Donor ligand activation of titanocene for the Biginelli reaction via the imine mechanism. [PDF]

RSC Adv, 2018
Zheng S, Jian Y, Xu S, Wu Y, Sun H, Zhang G, Zhang W, Gao Z.   +7 more
europepmc   +1 more source

Biodegradable polyester copolymers: synthesis based on the Biginelli reaction, characterization, and evaluation of their application properties. [PDF]

RSC Adv
Lu K, Shen X, Shi Y, He Z, Zhang D, Zhou M.   +5 more
europepmc   +1 more source

Fabrication of magnetic carbohydrate-modified iron oxide nanoparticles (Fe₃O₄/pectin) decorated with bimetallic Co/Cu-MOF as an effective and recoverable catalyst for the Biginelli reaction. [PDF]

RSC Adv
Grami M, Rafiee Z.
europepmc   +1 more source

On the Biginelli Reaction under Homogeneous Catalysis [PDF]

Proceedings of the 15th Brazilian Meeting on Organic Synthesis Proceedings, 2013
Haline G. O. Alvim, Tatiani B. de Lima, Heibbe C. B. Oliveira, Fabio C. Gozzo, Julio L. Macedo, Patricia V. Abdelnur, Wender A. Silva, Brenno A. D. Neto   +7 more
openaire   +1 more source