Results 31 to 40 of about 2,873,864 (246)

Towards the Synthesis of Nitrogen Containing Heterocycles

, 2022
The research undertaken in this thesis aimed at the synthesis of nitrogen containing heterocycles which are a class of molecules highly sought after by chemical industry and academia.
Liam Michael Joyce (20165961)
core   +1 more source

Various Synthesis of Imidazo[1,2-a]pyridines Derivatives and Therapeutic Significance: A Review [PDF]

BIO Web of Conferences
The synthesis of bicyclic heterocycles, notably nitrogen-containing imidazopyridines, holds immense appeal due to their structural diversity and pivotal role in biological systems. These compounds are ubiquitously found in nature and are prized for their
Hamdi Abdeljalil, El Hammoudani Yahya, Ahari M’hamed, Amhamdi Hassan, Salhi Amin, El Youssfi Abdellah, El Houssien Akichouh, El Aatiaoui Abdelmalik   +7 more
doaj   +1 more source

Divergent access to 5,6,7-perifused cycles

Nature Communications, 2023
Nitrogen-containing heterocycles are the key components in many pharmaceuticals and functional materials. In this study, we report a transition metal-catalyzed high-order reaction sequence for synthesizing a structurally unique N-center 5,6,7-perifused ...
Jingpeng Han, Yongjian Yang, Yingjian Gong, Xuan Tang, Yi Tian, Baosheng Li   +5 more
doaj   +1 more source

Domino Knoevenagel-cyclization reactions for the preparation of pyridine-containing condensed heterocycles

, 2022
In this thesis work, the goal was to synthesize chiral condensed O,N-heterocycles by the domino Knoevenagel-hetero Diels-Alder reaction from a 2-H-chromene derivative containing a pyridine-3-carbaldehyde moiety as a starting material. Eight new condensed
Kurtán, Tibor, Anjou, Tarek
core  

1,1’-(3-Methyl-4-phenylthieno[2,3-b]thiophene-2,5-diyl)diethanone as a Building Block in Heterocyclic Synthesis. Novel Synthesis of Some Pyrazole and Pyrimidine Derivatives

Molecules, 2011
A series of new bis(heterocycles) featuring thieno[2,3-b]thiophene rings was synthesized in a combinatorial manner. Intramolecular cyclization of enaminone derivatives with appropriate N-nucleophiles afforded the target compounds.
Saeed Alshahrani, Assem Barakat, Yamin Siddiqui, Yahia Nasser Mabkhot, Abdullah Mohammed Al-Majid   +4 more
doaj   +1 more source

Benzotriazole-Mediated Synthesis of Nitrogen-Containing Heterocycles

, 2015
Application of benzotriazole methodology for the preparation of nitrogen-containing heterocyclic compounds is summarized in this review. The characteristic advantages of benzotriazole are first briefly considered followed by an overview of its use in the
Judit K. Beagle, Beagle, Judit K.
core   +1 more source

Synthesis of Oxadiazole Derivatives from Terephthalic Acid

Chemistry Proceedings
Oxadiazoles, nitrogen-containing heterocycles, are attracting interest due to their promising biological activities. This study focuses on the synthesis of oxadiazole derivatives from functionalized intermediates derived from terephthalic acid, a ...
Fekih Yasmine, Datoussaid Yazid, Choukchou-Braham Noureddine   +2 more
doaj   +1 more source

Tetracyclic π‐Extended Multi‐Resonant TADF Emitters for Green PSF‐OLEDs With 37.7% EQE and BT.2020‐Compatible Top‐Emitting Devices

Advanced Functional Materials, EarlyView.
Ultra‐narrow green multi‐resonance thermally activated delayed fluorescence emitters have been developed by linear π‐extension strategy using tetracyclic naphtho[2,3‐b]benzofuran unit. The resulting phosphorescence‐sensitized OLEDs achieve a maximum external quantum efficiency of 37.7% in the bottom‐emitting architecture, while the complementary top ...
Eo Jin Jeon, Truong Thi Thuy, Nikita Abitkar, Paramasivam Palanisamy, Jiheon Kim, Myungsun Sim, Athithan Maheshwaran, Jang Hyuk Kwon   +7 more
wiley   +1 more source

A Holistic Platform Approach for Developing Robust Pulmonary mRNA Delivery: Integrating Novel Phenolic Acid‐Derived Ionizable Lipids and Device Engineering

Advanced Functional Materials, EarlyView.
An integrated pulmonary mRNA delivery platform combining novel biodegradable syringic acid‐derived ionizable lipids, design‐of‐experiments formulation optimization, and vibrating‐mesh nebulizer engineering enabled stable aerosolization and efficient lung delivery.
Neha Kaushal, Younan Ma, Asad Khanmohammed, Dipen Parande, Hanming Zhang, Saket Dolare, Juliet Chen, Apiwat Wangweerawong, Saswata Karmakar, Hongfeng Deng, Frank Koppenhagen, Shraddha Sharma, Eric Reyes, Sherry He, Lianne Boeglin, Caroline Woo, Azadeh Paksa, Ayed Allawzi, Anusha Dias, Gregory Troiano, Shrirang Karve, Frank DeRosa   +21 more
wiley   +1 more source

Extending the utility of [Pd(NHC)(cinnamyl)Cl] precatalysts: Direct arylation of heterocycles

Beilstein Journal of Organic Chemistry, 2012
The use of [Pd(NHC)(cinnamyl)Cl] precatalysts in the direct arylation of heterocycles has been investigated. Among four different precatalysts, [Pd(SIPr)(cinnamyl)Cl] proved to be the most efficient promoter of the reaction.
Anthony R. Martin, Anthony Chartoire, Alexandra M. Z. Slawin, Steven P. Nolan   +3 more
doaj   +1 more source