Results 71 to 80 of about 46,668 (286)

Regioselective synthesis of heterocyclic N-sulfonyl amidines from heteroaromatic thioamides and sulfonyl azides

Beilstein Journal of Organic Chemistry, 2020
N-Sulfonyl amidines bearing 1,2,3-triazole, isoxazole, thiazole and pyridine substituents were successfully prepared for the first time by reactions of primary, secondary and tertiary heterocyclic thioamides with alkyl- and arylsulfonyl azides.
Vladimir Ilkin, Vera Berseneva, Tetyana Beryozkina, Tatiana Glukhareva, Lidia Dianova, Wim Dehaen, Eugenia Seliverstova, Vasiliy Bakulev   +7 more
doaj   +1 more source

Electrocatalytic Dehydrogenative Lactonization of Benzylic Alcohols: A Sustainable Access to Phthalides via N‐hydroxyphthalimide Mediation

Advanced Synthesis &Catalysis, EarlyView.
A mild, scalable electrocatalytic method for direct lactonization of benzylic alcohols to phthalides using N‐hydroxyphthalimide as a redox mediator is reported. This metal‐free process proceeds via a phthalimide‐N‐oxyl‐mediated hydrogen atom transfer mechanism, shows broad scope with good to excellent yields, and enables late‐stage functionalizations ...
Pietro Ronco, Antonia Simi, Enrico Lunghi, Emanuele Casali, Giovanni Lenardon, Alessio Porta, Giuseppe Zanoni   +6 more
wiley   +1 more source

Synthesis and physical-chemical properties of 6-(5-(1Н-tetrazole-1-ylmethyl)-4-R-1,2,4-triazole-3-ylthio)pyridin-3-amines and 6-((5-(1Н-tetrazole-1-yl)methil-4-R-1,2,4-triazole-3-ylthio)pyridin-3-yl)-(alk,ar,heter)ylmethanimines

Zaporožskij Medicinskij Žurnal, 2017
Over the past decade the number of publications, that contain different aspects of chemistry and use of triazoles and tetrazoles have been doubled and continues to grow. Puplications of recent years show that heterocycles with 1,2,3,4-teterazoles and 1,2,
Yu. S. Hulina, A. G. Kaplaushenko
doaj   +1 more source

Cu(I)‐Catalyzed Interrupted Cycloaddition Between Azides, Ag(I)‐Acetylides, and Diorganoyl Dichalcogenides

Advanced Synthesis &Catalysis, EarlyView.
Unleashing the power of Ag(I)‐acetylides with LiCl/dimethyl sulfoxide (DMSO). The LiCl/DMSO mixture have an unexplored ability to dramatically increase the solubility of Ag(I)‐acetylides regardless of their molecular structure, which is explored to achieve high chemoselectivity in the Cu(I)‐catalyzed interrupted cycloaddition between organic azides, Ag(
Diego Seckler, Eduardo Q. da Luz, Gabriel L. Silvério, Francielli Sousa Santana, Gul Badshah, Wystan K. Teixeira, Caroline R. Montes D’Oca, Ricardo S. Schwab, Daniel S. Rampon   +8 more
wiley   +1 more source

3D QSAR study on substituted 1, 2, 4 triazole derivatives as anticancer agents by kNN MFA approach. [PDF]

Saudi Pharm J, 2023
Desai SP, Mohite SK, Alobid S, Saralaya MG, Patil AS, Das K, Almadani ME, Arif Hussain S, Hussain Alamer B, Abdulrahman Jibreel E, Ibrahim Almoteer A, Mohammed Basheeruddin Asdaq S.   +11 more
europepmc   +1 more source

A Polyoxometalate—Carbon Nanotube Enhanced Electrochemical Sensor for Aptamer‐Based Diagnostics

Advanced Sensor Research, EarlyView.
The high electroactive surface area of multi‐walled carbon nanotubes decorated with aptamer‐functionalized polyoxovanadate units enables a ≈1000‐fold increase in peak current response for a model diclofenac detection in aqueous solution compared to unmodified platinum microelectrodes.
Eric Vogelsberg, Andriy Lotnyk, Kirill Monakhov   +2 more
wiley   +1 more source

Cupin‐Type Dimethylsulfoniopropionate Lyase from Pelagibacter ubique (DddKPu) Catalyzes Aza‐Michael Addition of Primary and Secondary Amines to Acrylic Acid

Angewandte Chemie, EarlyView.
A dimethylsulfoniopropionate lyase (DddK) was identified as an efficient aza‐Michaelase for the addition of amines to acrylate. Screening 74 amines with wild‐type DddK and its W26G variant yielded N‐substituted and N,N‐disubstituted β‐amino acids in 30%–93% isolated yield.
Diletta Arceri, Angela Mourelle, Teodor Parella, Jordi Bujons, Carlos J. Moreno, Pere Clapés   +5 more
wiley   +2 more sources

Vaporisation Thermodynamics: Are Triazolium Ionic Liquids a Real Alternative to Popular Imidazolium-Based Ionic Liquids?

Liquids
New experimental vapour pressures and vaporisation enthalpies of the ionic liquids [2,4-dimethyl-1,2,4-triazolium][NTf2], [2-methyl-4-ethyl-1,2,4-triazolium][NTf2], and [2-ethyl-4-methyl-1,2,4-triazolium][NTf2] were measured using the Langmuir method in ...
Sergey P. Verevkin, Dzmitry H. Zaitsau
doaj   +1 more source

The synthesis and highly effective antibacterial properties of Cu-3, 5-dimethy l-1, 2, 4-triazole metal organic frameworks. [PDF]

Front Chem, 2023
Xu X, Ding M, Liu K, Lv F, Miao Y, Liu Y, Gong Y, Huo Y, Li H.   +8 more
europepmc   +1 more source

Arabidopsis TRB Proteins Form Two Closely Related Complexes to Mediate H3K4me3 Demethylation and Transcriptional Repression

Advanced Science, EarlyView.
This study reveals that Arabidopsis telomere repeat binding proteins (TRBs) form two closely related complexes. These complexes mediate H3K4me3 demethylation and transcriptional repression through a positive feedback loop and cooperate with PEAT and PRC2 complexes to regulate multiple histone modifications and gene expression across the genome ...
Qi Wang, Dan‐Yang Yuan, Yu‐Jia Lu, Xin Wang, Hao Zheng, Lin Li, She Chen, Xin‐Jian He   +7 more
wiley   +1 more source