Results 131 to 140 of about 11,521 (228)

The Chemistry of Subphthalocyanines: Synthetic Strategies for their Axial, Peripheral, and Remote Postfunctionalization

open access: yesChemistryEurope, EarlyView.
From axial and peripheral reactivity to remote derivatization, the chemical versatility of subphthalocyanines (SubPcs) renders them ideal scaffolds for the design of advanced functional materials. This review assembles the synthetic toolbox, key reaction conditions, and future challenges in SubPc functionalization, guiding the development of next ...
Marta Gómez‐Gómez   +4 more
wiley   +1 more source

Synthesis of Novel Glycerol-Derived 1,2,3-Triazoles and Evaluation of Their Fungicide, Phytotoxic and Cytotoxic Activities

open access: yesMolecules, 2017
The synthesis of a series of 1,2,3-triazoles using glycerol as starting material is described. The key step in the preparation of these triazolic derivatives is the copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC), also known as click reaction ...
Adilson Vidal Costa   +10 more
doaj   +1 more source

Síntesis de hidrotalcitas calcinadas Cu/Al y su evaluación catalítica en la obtención de Triazol- Dihidropirimidinonas (T-DHPM) [PDF]

open access: yes, 2017
85 páginas. Maestría en Ciencias e Ingeniería de Materiales.Se sintetizaron materiales tipo hidrotalcita de cobre y aluminio con relaciones molares Cu:Al 1:1 y 3:1, las hidrotalcitas fueron sometidas a tratamiento térmico para obtener la hidrotalcita ...
LOPEZ ALVAREZ, ITZEL GUADALUPE
core  

Chalcones as versatile synthons for the synthesis of 5- and 6-membered nitrogen heterocylces [PDF]

open access: yes, 2014
Chalcones belong to the flavonoid family which constitutes one of the major classes of naturally occurring oxygen heterocyclic compounds. The alpha,beta-unsaturated carbonyl system of chalcones possesses two electrophilic reactive centers allowing them ...
Albuquerque, Hélio   +3 more
core   +1 more source

An Overview of Synthetic Approaches towards 1,2,3-Triazoles

open access: yesSynOpen
AbstractIn this Spotlight article, the authors highlight synthetic methods of 1,2,3-triazoles from 2002 to the present.
Manoj K. Gupta   +3 more
openaire   +2 more sources

Unlocking Biomolecule Modification with Light‐Promoted Photocatalyst‐Free Approaches: Current Tools, Challenges, and Perspectives

open access: yesChemistryEurope, EarlyView.
This Perspective focuses on photocatalyst‐free, photoinduced modifications of biomolecules, emphasizing transformations mediated by electron donor–acceptor complexes. Mechanistic aspects, current limitations, and future opportunities are discussed, providing insight into the field of bioconjugation.
Milene Hornink   +3 more
wiley   +1 more source

Green ultrasound-assisted three-component click synthesis of novel 1H-1,2,3-triazole carrying benzothiazoles and fluorinated-1,2,4-triazole conjugates and their antimicrobial evaluation

open access: yesActa Pharmaceutica, 2017
The present study describes an efficient and ecofriendly, ultrasound, one-pot click cycloaddition approach for the construction of a novel series of 1,4-disubstituted-1,2,3-triazoles tethered with fluorinated 1,2,4-triazole-benzothiazole molecular ...
Rezki Nadjet, Aouad Mohamed Reda
doaj   +1 more source

A Novel 1,2,3-Triazole Ligand with Antioxidant Activity

open access: yesBiointerface Research in Applied Chemistry
The 1,2,3-triazole heterocycle serves as an important pharmacophore in large numbers of drug molecules with disparate pharmacological activities – antiviral, antibacterial, antifungal, anticancer, anticoagulant, CNS-active, to name a few. Its chemical stability, dipole moment, and ability to participate in hydrogen bonding make it an important building
Todorov, L.   +3 more
openaire   +2 more sources

Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview

open access: yesChemistry – A European Journal, EarlyView.
The graphical abstract summarizes the review “Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview”, highlighting representative Pd(II)‐catalyzed methods for the β‐arylation of α‐amino acids. Key mechanistic features, substrate diversity, and synthetic relevance of these transformations are showcased. Abstract Metal‐catalyzed C─
Davide Illuminati   +4 more
wiley   +1 more source

Coordination‐Driven Orthogonal Ligand Pairings through Dual Hydrogen‐Bonding/π‐π Interaction Complementarity

open access: yesChemistry – A European Journal, EarlyView.
A series of bidentate ligands for square‐planar Pd(II) complexes were developed, each with hydrogen‐bonding and π‐π‐stacking domains that are complementary to only one other ligand. The bis‐bidentate complexes form orthogonally to one another with high fidelity, but only when both interaction types are exploited in tandem.
Jordan N. Smith   +4 more
wiley   +1 more source

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