Results 91 to 100 of about 14,380 (267)

Exploring novel antitubercular agents: Innovative design of 2,3-diaryl-quinoxalines targeting DprE1 for effective tuberculosis treatment

Open Chemistry
The rising instances of drug resistance in Mycobacterium tuberculosis strains pose a significant global health challenge. Conventional tuberculosis (TB) treatments, which typically involve multiple antibiotics, face hurdles like drug resistance, reduced ...
Sharma Kirti, Sharma Atul, Sanduja Mohit, Jogpal Vikas, Mishra Asim Kumar, Kumar Girish, Virmani Tarun, Noman Omar M., Alhalmi Abdulsalam   +8 more
doaj   +1 more source

Iron(III) promoted oxidative annulation of benzylic C-H bonds in (α-amino)arylacetic acids for synthesis of 4-aryl pyrrolo[1,2-a]quinoxalines

Vietnam Journal of Science, Technology and Engineering, 2023
Using amino acids for synthesis of heterocycles is a synthetically promising field. However, developing the practical methods for transformations of amino acids into heterocycles is still challenging.
Tuan Hoang Ho, Tung Thanh Nguyen, Tran Hoang Bao Ngo, Nam Thanh Son Phan   +3 more
doaj  

Improved catalytic activity of ruthenium–arene complexes in the reduction of NAD+ [PDF]

, 2012
A series of neutral Ru-II half-sandwich complexes of the type [(eta(6)-arene)Ru(N,N')Cl] where the arene is para-cymene (p-cym), hexamethylbenzene (hmb), biphenyl (bip), or benzene (bn) and N,N' is N-(2-aminoethyl) -4-(trifluoromethyl)benzenesulfonamide (
Abraha Habtemariam, Canivet J., Carrión M. C., Chen Q., Clayden J., Creutz C., Dibenedetto A., Fish R. H., Grau M. M., Grimme S., Guy J. Clarkson, Habtemariam A., Haquette P., Held M., Hileman E. O., Joan J. Soldevila-Barreda, Khan J. A., Kim Y. H., Leiva C., Li X., Lo H. C., Maenaka Y., Martins J. E. D., Matharu D. S., Matthew C. K., Morris R. E., Neese F., Noyori R., Peacock A. F. A., Peter J. Sadler, Pieter C. A. Bruijnincx, Robert J. Deeth, Robertson A., Romain C., Ruppert R., Sandoval C. A., Schäfer A., Sheldrick G. M., Sinnecker S., Tan J., Thai T., Wang C., Wang F., Watanabe M., Weckbecker A., Weigend F., Wolfson A., Wu J., Wu X., Yan Y. K., Ying W., Zhou Z., Zhou Z.   +52 more
core   +2 more sources

Expanding Chemistry of Expanded Helicenes

Chemistry – A European Journal, EarlyView.
This review presents recent advances in the chemistry of expanded helicenes, defined as helicenes containing linearly fused benzene rings, as novel aromatic compounds. This review begins with a summary of their structural classification, followed by the synthesis, structures, properties, and chiroptical performance of expanded helicenes of various ...
Shinji Toyota
wiley   +1 more source

Continuous-flow catalytic asymmetric hydrogenations: Reaction optimization using FTIR inline analysis

Beilstein Journal of Organic Chemistry, 2012
The asymmetric organocatalytic hydrogenation of benzoxazines, quinolines, quinoxalines and 3H-indoles in continuous-flow microreactors has been developed.
Magnus Rueping, Teerawut Bootwicha, Erli Sugiono   +2 more
doaj   +1 more source

Radical Fluoroalkylation Reactions [PDF]

, 2018
Recent protocols and reactions for catalytic radical perfluoroalkylations will be described. The production of perfluoroalkyl radicals (RF = CnF2n+1, n ≥ 2), which effect both addition and substitution reactions on organic substrates, can be realized ...
Barata Vallejo, Sebastian, Cooke, María Victoria, Postigo, A.   +2 more
core   +1 more source

Hole‐Selective Self‐Assembled Monolayers Overlaid on NiOx or PEDOT:PSS for Tin‐Based Perovskite Solar Cells – An Overview of Recent Characterization Methods

Chemistry – A European Journal, EarlyView.
Successfully applying self‐assembled monolayers with hole‐selectivity for lead‐free tin perovskite solar cells requires judicious investigation with appropriately powerful characterization methods, in addition to efforts in the development of new materials and processing.
Donghoon Song, Seung Wook Shin, Hui‐Ping Wu, Eric Wei‐Guang Diau   +3 more
wiley   +1 more source

An Efficient and Recyclable Nanoparticle-Supported Cobalt Catalyst for Quinoxaline Synthesis

Molecules, 2015
The syntheses of quinoxalines derived from 1,2-diamine and 1,2-dicarbonyl compounds under mild reaction conditions was carried out using a nanoparticle-supported cobalt catalyst.
Fatemeh Rajabi, Diego Alves, Rafael Luque   +2 more
doaj   +1 more source

Multicomponent Synthesis of Fluorine‐Containing Bioactive Compounds and Drugs

European Journal of Organic Chemistry, EarlyView.
Multicomponent reactions are robust synthetic tools to assamble complex polyheterocycles and other interesting molecular architectures with potential application in medicinal chemistry, including their fluorine‐containing analogues. Fluorine atoms placed strategically into bioactive molecules often enhance essential pharmacokinetic parameters like ...
Ivette Morales‐Salazar, Perla Islas‐Jácome, Leonardo D. Herrera‐Zuñiga, Samuel Couve‐Bonnaire, Philippe Jubault, Eduardo González‐Zamora, Jean‐Philippe Bouillon, Alejandro Islas‐Jácome   +7 more
wiley   +1 more source

Toward Narrow‐Band, Stable Blue MR‐TADF Emission via Combined Heterocyclic Analogues Marching B.T.2020

Angewandte Chemie, Volume 137, Issue 40, September 26, 2025.
A robust molecular design strategy for MR‐TADF emitters via heterocyclic carbazole integration to strengthen weak C─N bonds was proposed. Blue MR‐TADF emitters m‐Cz‐DABNA and tBu‐Cz‐DABNA have achieved ultra‐narrow FWHMs (24/21 nm), high PLQYs (88%/95%), and record‐high EQEs (23%/26%).
Meghana Tirupati, Jung Ho Ham, Subramanian Muruganantham, Se Chann Cha, Young Hun Jung, Jang Hyuk Kwon   +5 more
wiley   +2 more sources