نتایج جستجو برای: propargylamine

تعداد نتایج: 73  

Journal: :RSC advances 2015
Hairong Li Joseph J Whittenberg Haiying Zhou David Ranganathan Amit V Desai Jan Koziol Dexing Zeng Paul J A Kenis David E Reichert

We have developed a microfluidic "click chip" incorporating an immobilized Cu(I) catalyst for click reactions. The microfluidic device was fabricated from polydimethylsiloxane (PDMS) bonded to glass and featured ~14,400 posts on the surface to improve catalyst immobilization. This design increased the immobilization efficiency and reduces the reagents' diffusion time to active catalyst site. Th...

Journal: :iranian journal of science and technology (sciences) 2012
h. sharghi

highly active cu (ii) complex with 1,4-dihydroxy anthraquinone as a cheap and accessable ligand could be used as a catalyst for the preparation of structurally different propargylamines from a one-pot, three-component reaction of terminal alkynes, aldehydes, and secondary amines with high yields under solvent-free conditions. the 1,4-dihydroxy anthraquinone is a very efficient cu(ii) scavenger ...

2013
Moussa B.H. Youdim

Present anti-PD and -AD drugs have limited symptomatic activity and devoid of neuroprotective and neurorestorative property that is needed for disease modifying action. The complex pathology of PD and AD led us to develop several multi-target neuroprotective and neurorestorative drugs with several CNS targets with the ability for possible disease modifying activity. Employing the pharmacophore ...

Ali Keivanloo, Amir Hossein Amin Mohammad Bakherad, Ommolbanin Hoseini Raheleh Doosti

In this report, the synthesis, characterization, and application of the eggshell-supported-Cu(II) salophen complex, as a novel and heterogeneous catalyst, is described. The catalyst is characterized by the UV, XRD, FT-IR, and SEM techniques. The eggshell-supported-Cu(II) salophen complex is a versatile, green, inexpensive, and simple catalyst used for the multi-component reactions (MCRs) of ter...

Ali Keivanloo, Amir Hossein Amin Mohammad Bakherad, Ommolbanin Hoseini Raheleh Doosti

In this report, the synthesis, characterization, and application of the eggshell-supported-Cu(II) salophen complex, as a novel and heterogeneous catalyst, is described. The catalyst is characterized by the UV, XRD, FT-IR, and SEM techniques. The eggshell-supported-Cu(II) salophen complex is a versatile, green, inexpensive, and simple catalyst used for the multi-component reactions (MCRs) of ter...

Journal: :Dalton transactions 2015
Zsolt Baranyai Dominik Reich Adrienn Vágner Martina Weineisen Imre Tóth Hans-Jürgen Wester Johannes Notni

Due to its 3 carbonic acid groups being available for bioconjugation, the TRAP chelator (1,4,7-triazacyclononane-1,4,7-tris(methylene(2-carboxyethylphosphinic acid))) is chosen for the synthesis of trimeric bioconjugates for radiolabelling. We optimized a protocol for bio-orthogonal TRAP conjugation via Cu(I)-catalyzed Huisgen-cycloaddition of terminal azides and alkynes (CuAAC), including a de...

Hamid Saeidian, Masomeh Faghfori, Morteza Abdoli

A one pot green three‐component coupling reaction of aldehyde, phenylacetylene, and amine derivatives in the presence of copper (II)–thioamide combination as a novel and efficient heterogeneous catalyst under solvent–free conditions is reported. The catalyst displayed high activity and afforded the corresponding propargylamines in good to high yields. The key to this procedure was the generatio...

2015
Margarita Alvira Ramon Eritja

--------------------------------------------------------------------------------------------------------There is considerable interest in coupling oligonucleotides to molecules and surfaces. Although aminoand thiol-containing oligonucleotides are being successfully used for this purpose, cycloaddition reactions may offer greater advantages due to their higher chemoselectivity and speed. In this...

Journal: :Macromolecular Rapid Communications 2021

The rapid development of science and technology has brought urgent demand for diversity in polymer structures functionalities, the pursuit new polymerizations is constant goal chemistry. Multicomponent reactions (MCRs)—reactions three or more starting materials able to generate a single product one-pot manner—feature series advantages such as simple reactants, easy operation, mild conditions, h...

200520062007200820092010201120122013201420152016201720182019202020212022202302.557.510

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید