13337-64-9Relevant articles and documents
Synthesis of polyhydroquinoline derivatives through unsymmetric Hantzsch reaction using organocatalysts
Kumar, Atul,Maurya, Ram Awatar
, p. 1946 - 1952 (2007)
A novel and green approach for efficient and rapid synthesis of polyhydroquinoline derivatives via unsymmetric Hantzsch reaction using organocatalysts at room temperature was reported. The process is a simple, environmentally friendly, rapid, and high yie
Montmorillonite K10 clay: An effective solid catalyst for one-pot synthesis of polyhydroquinoline derivatives
Song, Guoyong,Wang, Bo,Wu, Xiaoyin,Kang, Yuru,Yang, Liming
, p. 2875 - 2880 (2005)
An efficient one-pot four-component coupling process for the synthesis of polyhydroquinoline derivatives catalyzed by montmorillonite K10 clay is described. This procedure has such advantages as short reaction time, high yields, and simple workup. The cat
Synthesis, characterization and application of ionic liquid 1,3-disulfonic acid imidazolium hydrogen sulfate as an efficient catalyst for the preparation of hexahydroquinolines
Zare, Abdolkarim,Abi, Fereshteh,Moosavi-Zare, Ahmad Reza,Beyzavi, Mohammad Hassan,Zolfigol, Mohammad Ali
, p. 113 - 121 (2013)
In this work, novel Br?nsted acidic ionic liquid 1,3-disulfonic acid imidazolium hydrogen sulfate {[Dsim]HSO4} is synthesized, and characterized by studying its FT-IR, 1H NMR, 13C NMR, mass, TG, DTG and XRD spectra. This ionic liquid, with three acidic functional groups, is utilized as a highly efficient, homogeneous and reusable catalyst for the preparation of hexahydroquinolines via one-pot multi-component condensation of arylaldehydes, dimedone (5,5-dimethylcyclohexane-1,3-dione), β-ketoesters and ammonium acetate under solvent-free conditions. The catalyst can form dual hydrogen-bond using its SO3H groups which this subject can direct to its assembly and efficiency.
Molecular iodine-catalyzed one-pot synthesis of 4-substituted-1,4- dihydropyridine derivatives via Hantzsch reaction
Ko, Shengkai,Sastry,Lin, Chunchi,Yao, Ching-Fa
, p. 5771 - 5774 (2005)
A simple, inexpensive and efficient one-pot synthesis of 1,4-dihydropyridine derivatives at room temperature using catalytic amount of iodine were reported with excellent product yields. An easy access to various substituted 1,4-dihydropyridine derivative
Bakers' yeast catalyzed synthesis of polyhydroquinoline derivatives via an unsymmetrical Hantzsch reaction
Kumar, Atul,Maurya, Ram Awatar
, p. 3887 - 3890 (2007)
Bakers' yeast efficiently catalyzes the unsymmetrical Hantzsch reaction through a four-component coupling of aldehydes, β-ketoesters, dimedone and ammonium acetate to form polyhydroquinoline derivatives in good to excellent yields.
Glycine-catalyzed easy and efficient one-pot synthesis of polyhydroquinolines through hantzsch multicomponent condensation under controlled microwave
Singh, Satish Kumar,Singh, Krishna Nand
, p. 194 - 198 (2010)
(Chemical Equation Presented) Glycine, a novel heterogeneous organocatalyst, is found to be highly effective for the synthesis of polyhydroquinoline derivatives in a one-pot multicomponent reaction via Hantzsch condensation under controlled microwave (MW)
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Stankevich et al.
, (1975)
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PPA-SiO2 catalyzed efficient synthesis of polyhydroquinoline derivatives through Hantzsch multicomponent condensation under solvent-free conditions
Khojastehnezhad, Amir,Moeinpour, Farid,Davoodnia, Abolghasem
, p. 807 - 810 (2011)
Silica gel-supported polyphosphoric acid (PPA-SiO2) was found to be an efficient catalyst for the one-pot four-component Hantzsch condensation reaction of aryl aldehydes, dimedone, ethyl acetoacetate and ammonium acetate to afford the correspon
Efficient synthesis of decahydroacridine-1,8-diones and polyhydroquinolines using the step-wise method
Hosseininasab, Fatemeh Sadat,Memarian, Hamid Reza
, p. 1515 - 1540 (2022/01/11)
Various symmetrical and unsymmetrical decahydroacridine-1,8-dione and polyhydroquinoline derivatives were synthesized via two-step cyclocondensation reactions. The advantages of this step-wise addition of reactants in comparison with other one-pot reactions are avoiding the formation of 2 or 3 undesired by-products, therefore allowing cleaner work up of reaction. The important factor of this effective cyclocondensation method is that the prepared β-enaminone component was added dropwise to the solution, in which the Knoevenagel condensation product is slowly being formed by reaction of aldehyde molecule and 1,3-dicarbonyl compounds. The results of the proposed step-wise method are compared and discussed with those obtained in the one-pot reactions.
Sulfonamide-functionalized covalent organic framework (COF-SO3H): an efficient heterogeneous acidic catalyst for the one-pot preparation of polyhydroquinoline and 1,4-dihydropyridine derivatives
Farsi, Razieh,Mohammadi, Mohammad Kazem,Saghanezhad, Seyyed Jafar
, p. 1161 - 1179 (2020/11/18)
Herein, we report the sulfonamide-functionalized covalent organic framework (COF-SO3H) prepared from melamine and terephthalaldehyde and subsequent sulfonation, as an acidic porous catalyst for the one-pot preparation of polyhydroquinoline and
Magnetic Fe3O4@SiO2 Core–Shell Nanoparticles Functionalized with Sulfamic Acid Polyamidoamine (PAMAM) Dendrimer for the Multicomponent Synthesis of Polyhydroquinolines and Dihydro-1H-Indeno[1,2-b] Pyridines
Karbasaki, Soheila Sargazi,Bagherzade, Ghodsieh,Maleki, Behrooz,Ghani, Milad
, p. 498 - 508 (2021/08/09)
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