Synthesis, heterogenization and sensing properties of melamine-bridged bis-porphyrin dimers

2010 ◽  
Vol 14 (08) ◽  
pp. 701-707 ◽  
Author(s):  
Tommaso Carofiglio ◽  
Elisa Lubian ◽  
Alessandro Varotto
Keyword(s):  
Molecular Recognition ◽  
Nucleophilic Substitution ◽  
Cyanuric Chloride ◽  
One Pot ◽  
Molecular Tweezers ◽  
Sensing Properties ◽  
New Class ◽  
Porphyrin Dimers

A straightforward, "one-pot" approach to the construction of a new class of molecular tweezers and their heterogenization onto various aminated materials is reviewed here. It is based on nucleophilic substitution of the cyanuric chloride scaffold with tailored aminoporphyrin subunits. The molecular recognition properties of these porphyrinic materials for diamine sensing are also discussed.

Facile and Efficient Synthesis of New Class of Imidazole Derivatives via One-Pot Multicomponent Reactions in Water

2013 ◽  
Vol 16 (10) ◽  
pp. 788-790
Author(s):  
Zinatossadat Hossaini ◽  
Samereh Seyfi ◽  
Faramarz Rostami-Charati ◽  
Mehdi Ghambarian
Keyword(s):  
Multicomponent Reactions ◽  
Efficient Synthesis ◽  
One Pot ◽  
Imidazole Derivatives ◽  
New Class

scholarly journals Adventures in molecular recognition. The ins and outs of templating

2000 ◽  
Vol 72 (12) ◽  
pp. 2265-2274 ◽  
Author(s):  
Jeremy K. M. Sanders
Keyword(s):  
Molecular Recognition ◽  
Combinatorial Chemistry ◽  
Biological Systems ◽  
Design Approach ◽  
Supramolecular Systems ◽  
Disulfide Exchange ◽  
Dynamic Combinatorial Chemistry ◽  
Evolutionary Features ◽  
Selection Approach ◽  
Porphyrin Dimers

Two different approaches are described for the creation of supramolecular systems potentially capable of recognition and catalysis. Using the design approach, we have been able to accelerate and influence two different Diels­Alder reactions within the cavities of porphyrin dimers and trimers; this is templating from the outside inwards. The selection approach is a synthetic chemical attempt to capture some of the key evolutionary features of biological systems: dynamic combinatorial chemistry is used to create equilibrating mixtures of potential receptors, and then a template is used to select and amplify the desired system. Five potential reactions for such dynamic chemistry are discussed: base-catalyzed transesterification, hydrazone exchange, disulfide exchange, alkene metathesis, and Pd-catalyzed allyl exchange, and preliminary templating results (inside outwards) are presented.

scholarly journals Stereoselective synthesis of spirocyclic pyrrolidines/pyrrolizidines/pyrrolothiazolidines using l-proline functionalized manganese ferrite nanorods as a novel heterogeneous catalyst

RSC Advances ◽  
2021 ◽  
Vol 11 (24) ◽  
pp. 14755-14768
Author(s):  
Malihe Akhavan ◽  
Ahmadreza Bekhradnia
Keyword(s):  
Heterogeneous Catalyst ◽  
Stereoselective Synthesis ◽  
Manganese Ferrite ◽  
One Pot ◽  
New Class

An efficient, green, one-pot, and three-component protocol has been reported for the stereoselective synthesis of a new class of spiro thiazolidines.

One-Pot Hydrothermal Synthesis of Heterostructured ZnO/ZnS Nanorod Arrays with High Ethanol-Sensing Properties

2012 ◽  
Vol 18 (15) ◽  
pp. 4681-4686 ◽  
Author(s):  
Peng Gao ◽  
Longqiang Wang ◽  
Ying Wang ◽  
Yujin Chen ◽  
Xiaona Wang ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Nanorod Arrays ◽  
One Pot ◽  
Sensing Properties ◽  
Ethanol Sensing ◽  
High Ethanol

scholarly journals Desymmetrization of Pibrentasvir for Efficient Prodrug Synthesis

2021 ◽  
Author(s):  
Eric Voight ◽  
Stephen N Greszler ◽  
John Hartung ◽  
Jianguo Ji ◽  
Russell C Klix ◽  
...  
Keyword(s):  
One Pot ◽  
New Class

A novel and practical desymmetrization tactic is described to access a new class of pibrentasvir prodrugs. The homotopic benzimidazoles of pibrentasvir (PIB) are differentiated via a one-pot di-Boc/mono-de-Boc selective N-Boc...

Synthesis, characterization, and antiproliferative and apoptosis inducing effects of novels-triazine derivatives

2018 ◽  
Vol 42 (3) ◽  
pp. 1698-1714 ◽  
Author(s):  
Mani Shanmugam ◽  
Kuppusamy Narayanan ◽  
Kamatam Hari Prasad ◽  
Dhanapalan Karthikeyan ◽  
Loganathan Chandrasekaran ◽  
...  
Keyword(s):  
Schiff Base ◽  
Nucleophilic Substitution ◽  
Antitumor Agents ◽  
New Class ◽  
Schiff Base Derivatives ◽  
Triazine Derivatives

In an attempt to design and synthesize a new class of antitumor agents, a mild and eco-friendly protocol for nucleophilic substitution using ans-triazine scaffold,viaamine and Schiff base derivatives, has been developed.

scholarly journals One-pot three-component tandem annulation of 4-hydroxycoumarine with aldehyde and aromatic amines using graphene oxide as an efficient catalyst

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Rabindranath Singha ◽  
Aminul Islam ◽  
Pranab Ghosh
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Aromatic Amines ◽  
Significant Loss ◽  
Solvent Free ◽  
One Pot ◽  
Efficient Catalyst ◽  
New Class ◽  
Broad Scope ◽  
Plausible Mechanism

AbstractA convenient and efficient solvent-free, facile, one-pot three-component graphene oxide catalysed approach has been described for the synthesis of chromeno-[4,3-b]quinolin-6-one derivatives from 4-hydroxycoumarin with aldehydes and aromatic amines. Graphene oxide (GO) has proved to be a new class of heterogeneous carbocatalyst which could be easily recovered and reused up to 5th run without significant loss of its catalytic activity. A broad scope of substrate applicability is offered and a plausible mechanism is also suggested for this developed protocol.

‘One-pot’ synthesis and redox evaluations of chiral chalcogenocysteinol and β-bis-chalcogenoamine derivatives from l-serine methyl ester

2017 ◽  
Vol 41 (15) ◽  
pp. 7424-7431 ◽  
Author(s):  
Patrícia Foletto ◽  
Luciano Dornelles ◽  
Bernardo A. Iglesias ◽  
Andressa C. Bevilacqua ◽  
Paulo Piquini ◽  
...  
Keyword(s):  
Methyl Ester ◽  
One Pot ◽  
New Class ◽  
One Pot Synthesis

The synthesis of a new class of potential antioxidant chiral chalcogenocysteinols and bis-chalcogenoamines is described in this study.

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