Results 221 to 230 of about 49,489 (310)

Double Click for Chirality: Chiral Dibenzo‐cycloocta‐bis‐triazoles via Strain‐Promoted Alkyne‐Azide Cycloaddition

open access: yesChemPhotoChem, EarlyView.
Strain‐promoted, double alkyne‐azide 1,3‐dipolar cycloadditions make dibenzo‐cycloocta‐bis‐triazoles which display a form of chirality that to date has been overlooked. The enantiomers can be resolved, with their remarkably high configurational stability being exemplified through a chiral fluorescent example.
Sebastian Pim   +7 more
wiley   +1 more source

Sustainable Synthesis of 1,2,3‐Triazoles using Cyrene as a Biodegradable Solvent in Click Chemistry

open access: yesChemSusChem, EarlyView.
Green triazoles: The first successful synthesis of 1,2,3‐triazoles using Cyrene as a biodegradable and non‐toxic solvent in click chemistry has been developed. This sustainable approach allows product isolation by simple precipitation in water, eliminating the need for organic solvent extractions and chromatographic purifications, thus minimizing waste
Andrea Citarella   +4 more
wiley   +1 more source

Pyrazolyl‐Pyridine Ruthenium (II) Catalysts for Selective Hydrogen Generation Through Formic Acid Dehydrogenation

open access: yesEuropean Journal of Inorganic Chemistry, Accepted Article.
A series of pyridine‐pyrazolyl Ru(II) p‐cymene complexes of the type [RuCl(p‐cymene)L]X (C1‐C7, X = Cl, BPh4 or PF6), bearing different electronic and steric properties, were prepared by the reaction of 3,5‐disubstituted pyrazolyl‐pyridine ligands (L1‐L3) with [Ru(p‐cymene)Cl2]2 followed by salt metathesis with NaBPh4 or AgPF6.
Rotondwa Mphephu   +2 more
wiley   +1 more source

Multiple Fungicide-Driven Alterations in Azole-Resistant Aspergillus fumigatus, Colombia, 2015

open access: yesEmerging Infectious Diseases, 2016
Patrice Le Pape   +3 more
doaj   +1 more source

Recent Advances in the α‐Hydrazination (α‐Amination) of Carbonyl Compounds

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
In recent years, notable progress has been achieved in the α‐hydrazination (α‐amination) of carbonyl compounds, especially in the direct asymmetric electrophilic α‐hydrazination with dialkyl azodicarboxylates. This review summarizes all the methods that appeared over the past decade, categorized based on the type of the reactive chiral intermediate ...
Dina Scarpi   +2 more
wiley   +1 more source

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