Results 81 to 90 of about 8,430 (199)

Semi-synthesis of β-keto-1,2,3-triazole derivatives from ethinylestradiol and evaluation of the cytotoxic activity

open access: yesHeliyon, 2019
In this study, we report our contribution to the application of the copper-catalyzed azide-alkyne cycloaddition (CuAAC) reaction for the synthesis of β-keto-1,2,3-triazole derivatives 3a-f from ethinylestradiol and their application in the inhibition of ...
Thayane M. Queiroz   +6 more
doaj   +1 more source

The roles of side chains in Y6‐series non‐fullerene acceptors for high‐performance organic solar cells

open access: yesBulletin of the Korean Chemical Society, Volume 47, Issue 8, Page 900-922, August 2026.
The development of organic solar cells (OSCs) has been driven by structural modifications of Y6‐series non‐fullerene acceptors. In particular, side‐chain engineering regulates solubility, molecular packing, and energy levels, enabling efficiencies to increase from 15.7% to over 20%.
Peddaboodi Gopikrishna   +3 more
wiley   +1 more source

Synthesis and Structure Elucidation of N′-(4-Methoxybenzylidene)-5-methyl-1-phenyl-1H-1,2,3-triazole-4-carbohydrazide

open access: yesMolbank, 2018
N′-(4-Methoxybenzylidene)-5-methyl-1-phenyl-1H-1,2,3-triazole-4-carbohydrazide (3) was synthesized in a yield of 88% from an acid-catalyzed reaction of 5-methyl-1-phenyl-1H-1,2,3- triazole-4-carbohydrazide and 4-methoxybenzaldehyde in ethanol under
Mohammad Hayal Alotaibi   +5 more
doaj   +1 more source

Amino acid vectorization of salicylic acid enables efficient activation of NPR1‐dependent defense without phytotoxicity

open access: yesPest Management Science, Volume 82, Issue 8, Page 7321-7336, August 2026.
Amino acid‐vectorized salicylic acid activates PR1/NPR1‐dependent defenses without phytotoxicity, showing an efficient strategy for controlled delivery and enhanced plant immunity. Abstract BACKGROUND Addressing global food security under rapid population growth and climate change requires sustainable strategies to protect crops from pathogens while ...
Ruth Oussou   +6 more
wiley   +1 more source

A Comparative Study of Molybdenum Carbonyl and Oxomolybdenum Derivatives Bearing 1,2,3-Triazole or 1,2,4-Triazoles in Catalytic Olefin Epoxidation

open access: yesMolecules, 2018
The molybdenum(0)-carbonyl-triazole complexes [Mo(CO)3(L)3] [L = 1,2,3-triazole (1,2,3-trz) or 1,2,4-triazole (1,2,4-trz)] have been prepared and examined as precursors to molybdenum(VI) oxide catalysts for the epoxidation of cis-cyclooctene. Reaction of
Lucie S. Nogueira   +7 more
doaj   +1 more source

Electrochemical investigation of radical‐radical recognition in viologen‐based ditopic structures

open access: yesResponsive Materials, Volume 4, Issue 3, August 2026.
The so‐called “blue box” is one of the most studied macrocycles. Yet, functionalized macrocycles of this type are rarely investigated. This work describes the radical‐radical recognition properties of ditopic structures, including functionalized blue‐box macrocycles.
Ahmad Bachir   +6 more
wiley   +1 more source

Amido‐Triazole Complexes, “Normal” Triazole‐Based Imines and Metallo‐Mesoionic Imines

open access: yesChemistryEurope
Mesoionic compounds are hugely popular in fields such as organic chemistry, organometallic chemistry and homogeneous catalysis. A new sub‐class are the mesoionic imines (MIIs).
M. Sc. Richard Rudolf   +1 more
doaj   +1 more source

Azobenzene‐Cored Amphiphilic Dendrimers: Molecular Photoswitching Controls Dendriplex Topology and Gene Delivery

open access: yesSmall Science, Volume 6, Issue 8, August 2026.
Light switches gene delivery: Optomechanical actuation of multilamellar pDNA nanocomplexes formulated with single‐component azobenzene‐scaffolded ionizable Janus dendrimers (Azo‐IAJDs) enhances light‐regulated transfection in vitri and in vivo. The initial E or Z state programs cell selectivity and passive organ targeting without added ligands ...
María J. Puerto‐Madorrán   +10 more
wiley   +1 more source

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

open access: yesThe Chemical Record, Volume 26, Issue 8, August 2026.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros   +5 more
wiley   +1 more source

Funktionalisierung von Peptiden auf der festen Phase im späten Synthesestadium

open access: yesAngewandte Chemie, Volume 138, Issue 31, 27 July 2026.
Peptidmodifikationen sind für die Kontrolle der Eigenschaften von Peptidwirkstoffen von entscheidender Bedeutung. Daher sind Strategien, die einen effizienten und schnellen Einbau nicht‐kanonischer Modifikationen in Peptide in Parallelformaten ermöglichen, sehr gefragt.
Marius Werner   +2 more
wiley   +1 more source

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