Temperature-Dependent Synthesis of Metal-Organic Frameworks Based on a Flexible Tetradentate Ligand with Bidirectional Coordination Donors
摘要:
Using a temperature-dependent synthetic approach, four distinct new silver(I) coordination polymers resulting from the different conformations adopted by the flexible ligand at different temperatures were obtained.
Synthesis and Anti‐influenza Virus Activity of Novel bis(4<i>H</i>‐chromene‐3‐carbonitrile) Derivatives
作者:Amna M. Abdella、Yassmin Moatasim、Mohamed A. Ali、Ahmed H. M. Elwahy、Ismail A. Abdelhamid
DOI:10.1002/jhet.2776
日期:2017.5
method for the synthesis of bis(4H‐chromene‐3‐carbonitrile) derivatives by one‐pot, multicomponent reaction of bis‐aldehydes, malononitrile, and dimedone in the presence of a catalytic amount of piperidine is reported. Bis(2‐benzylidene‐1H‐indene)‐1,3‐(2H)‐dione derivatives were obtained as the main products as a result of reaction of the bis(arylidenemalononitriles) with indandione. The anti‐influenza
Novel bis(dihydropyrano[3,2-<i>c</i>]chromenes): Synthesis, Antiproliferative Effect and Molecular Docking Simulation
作者:Amna M. Abdella、Magda F. Mohamed、Aly F. Mohamed、Ahmed H. M. Elwahy、Ismail A. Abdelhamid
DOI:10.1002/jhet.3072
日期:2018.2
An efficient and convenient route for the synthesis of novel bis dihydropyrano[3,2‐c]chromenes is reported. The synthetic pathway involves one‐pot, multicomponentreaction of bis‐aldehydes, malononitrile, and 4‐hydroxycoumarin in the presence of pyridine or acetic acid/sodium acetate. A stepwise approach for the synthesis of the target compounds was also investigated. The anticancer activity of the
报道了一种新颖的双二氢吡喃并[3,2- c ]二甲基苯酮合成的有效简便途径。合成途径涉及在吡啶或乙酸/乙酸钠存在下双醛,丙二腈和4-羟基香豆素的单锅多组分反应。还研究了合成目标化合物的逐步方法。评估了合成产物对MCF7,HEPG2和A549细胞系的抗癌活性。为了检测6g的分子作用,使用DHFR PDB:ID(1DLS)进行了对接模拟。研究表明,化合物6g通过六种结合牢固地适合于目标蛋白的活性位点,因此,它被认为是有希望的癌症增殖抑制剂。
Microwave Assisted Green Multicomponent Synthesis of Novel bis(2-Amino-tetrahydro-4<i>H</i>-chromene-3-carbonitrile) Derivatives Using Chitosan as Eco-friendly Basic Catalyst
作者:Soad K. Salama、Ahmed F. Darweesh、Ismail A. Abdelhamid、Ahmed H. M. Elwahy
DOI:10.1002/jhet.2584
日期:2017.1
efficient, and eco‐friendly procedure has been developed for the synthesis of bis(4H‐chromene‐3‐carbonitrile) derivatives using chitosan as catalyst under microwave‐assisted reaction conditions. For the sake of comparison, the reaction was also carried out under conventional heating in the presence of each of chitosan and piperidine as basic catalysts.
Bis(β-Difunctional) Compounds: Versatile Starting Materials for Novel Bis(Heterocycles)
作者:Ahmed H. M. Elwahy、Ashraf A. Abbas
DOI:10.1080/00397910008087441
日期:2000.8
Abstract New bis(β-difunctional) compounds could be prepared in good yields. Their utility as intermediates in the synthesis of novel bis(heterocycles) were also investigated.
3‐Amino‐5‐cyanomethylpyrazole‐4‐carbonitrile: Versatile Reagent for Novel Bis(pyrazolo[1,5‐<i>a</i>]pyridine) Derivatives<i>via</i>a Multicomponent Reaction
作者:Amr M. Abdelmoniem、Said A. S. Ghozlan、Doaa M. Abdelmoniem、Ahmed H. M. Elwahy、Ismail A. Abdelhamid
DOI:10.1002/jhet.3346
日期:2018.12
An efficient synthesis of novel bis(pyrazolo[1,5‐a]pyridine) derivatives through Michael addition reaction of 3‐amino‐5‐cyanomethylpyrazole‐4‐carbonitrile with bis‐arylidenemalononitrile is reported. All new compounds are characterized by different spectral tools.
据报道,通过3-氨基-5-氰基甲基吡唑-4-腈与双芳基丙二腈的迈克尔加成反应可以有效合成新型双(吡唑并[1,5- a ]吡啶)衍生物。所有新化合物都具有不同的光谱工具。