scholarly journals Synthesis and anion binding properties of phthalimide-containing corona[6]arenes

2019 ◽  
Vol 15 ◽  
pp. 1976-1983 ◽  
Author(s):  
Meng-Di Gu ◽  
Yao Lu ◽  
Mei-Xiang Wang
Keyword(s):  
Solid State ◽  
Gas Phase ◽  
Noncovalent Interactions ◽  
Condensation Reaction ◽  
Anion Binding ◽  
The Novel ◽  
Binding Properties ◽  
One Pot ◽  
Mild Conditions ◽  
Complex Anions

Functionalized O6-corona[3]arene[3]tetrazines were synthesized efficiently and conveniently by means of a macrocyclic condensation reaction between N-functionalized 3,6-dihydroxyphthalimides and 3,6-dichlorotetrazine under mild conditions in a one-pot reaction manner. The novel macrocycles exist as a mixture of rapidly interconvertible conformers in solution while in the solid state they adopt the conformation in which three phthalimide units are cis,trans-orientated. Acting as electron-deficient macrocyclic hosts, the synthesized O6-corona[3]arene[3]tetrazines self-regulated conformational structures to complex anions in the gas phase and in the solid state owing to the anion–π noncovalent interactions between anions and the tetrazine rings.

scholarly journals Application of One-Pot Three-Component Condensation Reaction for the Synthesis of New Organophosphorus–Sulfur Macrocycles

Synlett ◽  
2018 ◽  
Vol 29 (11) ◽  
pp. 1496-1501 ◽  
Author(s):  
J. Woollins ◽  
Guoxiong Hua ◽  
David Cordes ◽  
Alexandra Slawin
Keyword(s):  
Multicomponent Reaction ◽  
Room Temperature ◽  
Condensation Reaction ◽  
Synthesis Method ◽  
Membered Ring ◽  
One Pot ◽  
X Ray ◽  
Efficient Approach ◽  
Mild Conditions ◽  
Sulfur Heterocycles

An efficient approach has been developed for the synthesis of new phosphorus–sulfur heterocycles by a one-pot three-component condensation reaction of a four-membered-ring thionation reagent [Lawesson’s reagent or its ferrocene analogue (2,4-diferrocenyl-1,3,2,4-diathiadiphosphetane 2,4-disulfide)], an alkane- or arenedithiol, and a dihaloalkane at room temperature in the presence of triethylamine. The simple synthesis method with mild conditions (room temperature and normal reactant concentrations) enhances further the application of the multicomponent reaction in the preparation of novel phosphorus–sulfur heterocycles. Six representative X-ray structures confirmed the formation of these macrocycles.

Recognition of nitrate by the ammonium derivative of a 20-membered dioxadiaza-calix[4]arene analog—solution and solid-state study of the anion binding properties

Tetrahedron ◽  
2015 ◽  
Vol 71 (8) ◽  
pp. 1232-1240 ◽  
Author(s):  
Ramón Moreno-Corral ◽  
Herbert Höpfl ◽  
Anatoly K. Yatsimirsky ◽  
Juan Carlos Gálvez-Ruiz ◽  
Karen O. Lara
Keyword(s):  
Solid State ◽  
Anion Binding ◽  
Binding Properties ◽  
Ammonium Derivative ◽  
State Study

One-pot preparation of β-amido ketones/esters in a three-component condensation reaction using magnesium hydrogensulfate as an effective and reusable catalyst

2008 ◽  
Vol 86 (5) ◽  
pp. 376-383 ◽  
Author(s):  
Hamid Reza Shaterian ◽  
Asghar Hosseinian ◽  
Majid Ghashang
Keyword(s):  
Room Temperature ◽  
Acetyl Chloride ◽  
Condensation Reaction ◽  
Reusable Catalyst ◽  
Reaction Conditions ◽  
One Pot ◽  
Green Catalyst ◽  
Mild Conditions ◽  
Aryl Aldehyde ◽  
Ketone Ester

A one-pot, three-component condensation of an aryl aldehyde, an enolizable ketone or β-keto ester, acetyl chloride, and acetonitrile or benzonitrile in the presence of magnesium hydrogensulfate as an active, recoverable, and reusable green catalyst is described for the synthesis of β-amido ketones/esters at room temperature. The key features of this methodology are simplicity, mild reaction conditions, and high to excellent yields.Key words: multi-component reaction, magnesium hydrogensulfate, heterogeneous catalyst, β-amido ketone/ester, mild conditions.

Synthesis, Solid-State Analyses, and Anion-Binding Properties ofmeso-Aryldipyrrin-5,5′-diylbis(phenol) and -bis(aniline) Ligands

2014 ◽  
Vol 2014 (22) ◽  
pp. 4759-4766 ◽  
Author(s):  
Laurent Copey ◽  
Ludivine Jean-Gérard ◽  
Eric Framery ◽  
Guillaume Pilet ◽  
Bruno Andrioletti
Keyword(s):  
Solid State ◽  
Anion Binding ◽  
Binding Properties

scholarly journals One-Pot Multicomponent Synthesis of Novel 2-Thioxo-Benzo[6,7]Chromeno[2,3d]Pyrimidin-4-one Derivatives using Cetylpyridinium Chloride

2014 ◽  
Vol 7 (1) ◽  
pp. 1280-1286
Author(s):  
Dini Ahanthem ◽  
Warjeet S. Laitonjam
Keyword(s):  
Condensation Reaction ◽  
Cetylpyridinium Chloride ◽  
Aromatic Aldehydes ◽  
Bath Temperature ◽  
The Novel ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Multicomponent Condensation ◽  
Water As Solvent ◽  
Elemental Analyses

The novel 2-thioxo-benzo[5,6]chromeno[2,3-d]pyrimidin-4-one derivatives were prepared by one pot multicomponent condensation reaction involving thiobarbituric acids, aromatic aldehydes and β-napthol in acetonitrile-water as solvent using surfactant, cetylpyridinium chloride (CPC) at water bath temperature in good yields. The structures of the compounds were confirmed by elemental analyses and spectral data.

Cellulose-Supported Sulfonated Magnetic Nanoparticles: Utilized for One-pot Synthesis of α-Iminonitrile Derivatives

2020 ◽  
Vol 17 (4) ◽  
pp. 288-294 ◽  
Author(s):  
Jamal Rahimi ◽  
Reza Taheri-Ledari ◽  
Ali Maleki
Keyword(s):  
Condensation Reaction ◽  
Coupling Reaction ◽  
Aerobic Condition ◽  
Primary Amines ◽  
Melting Points ◽  
Bioactive Substances ◽  
One Pot ◽  
Oxidative Coupling Reaction ◽  
Mild Conditions ◽  
Ft Ir

Introduction: An instrumental strategy for α-iminonitrile derivatives preparation by Fe3O4@cellulose-OSO3H (MCSA) as an eco-friendly nanocatalyst and oxidative agent in aerobic condition, is presented. Materials and Methods: Through this method, a one-pot three-component condensation reaction of various aldehydes, primary amines and trimethylsilylcyanide (TMSCN) were applied to synthesize the desired products. It was performed in absolute ethanol and under a mild condition by using the presented nanocatalyst. High reaction yields were obtained through using the presented magnetic agent, as well. Moreover, the threecomponent reactions were executed using accessible and economical precursors. The convenient separation and recyclability of the used nanocatalyst were also precisely investigated. Results and Discussion: In this research, we identified novel α-iminonitrile derivatives using 1H NMR, 13C NMR, CHN, and FT-IR analyses, as well. In order to determine the well-known derivatives, we used FT-IR method as well as comparing their melting points with those of reported. Conclusion: In summary, an extremely efficient method was used for the environmentally-friendly synthesis of α-iminonitrile derivatives that are important bioactive substances. The catalytic oxidative coupling reaction afforded the products via a one-pot three-component condensation reaction of various aldehydes, primary amines and TMSCN with great reaction yields, in ethanol under mild conditions.

NCImilano: an electron-density-based code for the study of noncovalent interactions

2013 ◽  
Vol 46 (5) ◽  
pp. 1513-1517 ◽  
Author(s):  
Gabriele Saleh ◽  
Leonardo Lo Presti ◽  
Carlo Gatti ◽  
Davide Ceresoli
Keyword(s):  
Solid State ◽  
Gas Phase ◽  
Noncovalent Interactions ◽  
Real Space ◽  
Quantum Mechanical ◽  
Solid State Electron ◽  
X Ray ◽  
Reduced Density Gradient ◽  
Reduced Density ◽  
First Time

NCImilano, a Fortran90 code for applying the reduced density gradient (RDG) descriptor to a real-space study of noncovalent interactions, is presented. This code has been specifically designed for the X-ray charge density community, as it can deal with both gas-phase and solid-state electron densities as evaluated by popular multipolar (XD2006) and Gaussian-based quantum mechanical (Gaussian03/09,CRYSTAL) computational platforms. Moreover, it implements for the first time the possibility of plotting energy densities over RDG isosurfaces.

scholarly journals Black Phosphorus: An Effective Feedstock for the Synthesis of Phosphorus-Based Chemicals

CCS Chemistry ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 166-172 ◽  
Author(s):  
Lie Wu ◽  
Shi Bian ◽  
Hao Huang ◽  
Jiahong Wang ◽  
Danni Liu ◽  
...  
Keyword(s):  
Organophosphorus Compounds ◽  
Black Phosphorus ◽  
White Phosphorus ◽  
The Novel ◽  
Phosphine Oxides ◽  
Elemental Phosphorus ◽  
One Pot ◽  
Mild Conditions ◽  
Novel Concept ◽  
Phosphine Sulfide

We propose and demonstrate the novel concept of synthesizing organophosphorus compounds directly from black phosphorus (BP) nanoparticles as the feedstock. Compounds such as alkyl phosphines, alkyl phosphine oxides, phosphine sulfide, and hexafluorophosphate anion are prepared with good isolation yields under mild conditions. Selective synthesis of primary, secondary, and tertiary organophosphorus compounds is also demonstrated utilizing this one-pot approach. Reaction mechanisms are proposed and discussed. Compared with traditional white phosphorus (P4)-based methods, the new synthetic concept and process utilizing elemental phosphorus are more efficient and environmentally friendly.

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