372171-37-4Relevant articles and documents
Synthesis method of dihydropyrimidinone compound
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Paragraph 0034-0036; 0040-0041; 0044; 0054-0058; 0062, (2021/05/19)
The invention discloses a synthesis method of a dihydropyrimidone compound, which belongs to the technical field of organic synthesis, and comprises the following steps: by taking benzaldehyde or a derivative thereof, ethyl acetoacetate or acetylacetone a
Exploiting silver trifluoromethanesulfonate as efficient and reusable catalyst for the synthesis of dihydropyrimidine derivatives under different reaction environments
Roy, Dipak Kumar,Tamuli, Kashyap Jyoti,Bordoloi, Manobjyoti
, p. 3313 - 3323 (2019/11/03)
Different results were generated under different reaction conditions for the multicomponent reactions. Herein, an efficiently improved and mild protocol for the synthesis of dihydropyrimidine derivatives using cheap silver trifluoromethanesulfonate (CFsu
SnO2 nanoparticles: An efficient reusable heterogeneous catalyst for synthesis of 3,4-dihydropyrimidinones under solvent-free conditions
Priyadharsini,Chitra
, p. 243 - 248 (2018/09/14)
Some 3,4-dihydropyrimidine derivatives have been synthesized from the reaction of divergent aldehydes with acetylacetone and urea/thiourea using nano tin oxide nanoparticles under solvent-free condition. The nanoparticle catalyst used in this synthesis is
Polyaniline Supported FeCl3: An Effective Heterogeneous Catalyst for Biginelli Reaction
Patel, Heta A.,Sawant, Aishwarya M.,Rao, Vandana J.,Patel, Arun L.,Bedekar, Ashutosh V.
, p. 2306 - 2312 (2017/08/22)
Abstract: Polyaniline supported FeCl3 is prepared and tested as an efficient heterogeneous Lewis acidic catalyst for the Biginelli reaction. The catalyst PANI–FeCl3 shows excellent activity in the synthesis of dihydropyrimidinones fr
Sulfamic Acid Supported Magnetic Fe3O 4 Nanoparticles Catalyzed Synthesis of 3,4-Dihydropyrimidin-2(1 H)-ones/Thiones
Shaghayeghi Toosi, Foad,Maghsoodi, Ali,Toosi, Faranak Shaghayeghi
, p. 168 - 170 (2015/10/12)
Sulfamic acid supported on magnetic Fe3O4 nanoparticles catalyzed the condensation reaction of aldehydes, 1,3-dicarbonyl compounds, and urea or thiourea in the synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones under solvent-free c
Boehmite nanoparticle catalyst for the one-pot multicomponent synthesis of 3,4-dihydropyrimidin-2-(1H)-ones and thiones under solvent-free conditions
Keivanloo, Ali,Mirzaee, Mahdi,Bakherad, Mohammad,Soozani, Atena
, p. 362 - 367 (2014/04/03)
A simple, green, and efficient synthesis protocol for the synthesis of 3,4-dihydropyrimidin-2-(1H)-ones using boehmite nanoparticles as catalyst was developed. It did not use any toxic metal catalysts or corrosive acidic reagents. The method gave good to excellent yields and has short reaction time, operational simplicity, and a recyclable catalyst.
Boron trioxide-alumina as a heterogeneous catalyst in a facile solvent free one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones
Zhou, Xufeng,Cheng, Tianxing,Zheng, Xiangyong,Ke, Qiang,Wang, Xuebao
experimental part, p. 213 - 215 (2012/09/08)
B2O3/Al2O3 has been found to be a new and highly efficient heterogeneous catalyst for the one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones by the Biginelli reaction under solvent-free conditions. 3,4-Dihydropyrimidin-2(1H)-ones have important pharmacological and biological activities.
Synthesis of Biginelli compounds using cobalt hydrogen sulfate
Memarian, Hamid Reza,Ranjbar, Mahnaz
experimental part, p. 522 - 527 (2012/01/05)
Efficient synthesis of various 2-oxo(thioxo)-1,2,3,4-tetrahydropyrimidines containing acetyl, carboethoxy, carbomethoxy and carboxamide groups on 5-position of the M-substituted and ATL-unsubstituted heterocyclic ring was achieved using cobalt hydrogen su
Highly efficient solvent-free synthesis of dihydropyrimidinones catalyzed by zinc oxide
Bahrami, Kiumars,Mehdi Khodaei, Mohammad,Farrokhi, Azita
experimental part, p. 1801 - 1808 (2009/10/02)
A simple, efficient and practical procedure for the Biginelli reaction using zinc oxid (ZnO) as a novel and reusable catalyst is described under solvent-free conditions in high yields. The use of this agent is characterized by remarkable reactivity, moder