Results 41 to 50 of about 51,592 (230)
One-pot Microwave-Assisted Synthesis of 1H-Phenanthro[9,10- d][1,2,3]triazole
Molbank, 2008 In this study, a fast and good yield one-pot microwave-assisted synthesis (45 seconds) of 1H-phenanthro[9,10-d][1,2,3]triazole by a 1,3-dipolar cycloaddition reaction of sodium azide and 9-bromophenanthrene in the presence of potassium tert-butoxide in ...
Mehrak Faraji, Avat Arman Taherpour
doaj +1 more source
Asymmetric 1,3-dipolar cycloadditions of acrylamides [PDF]
, 2009 This critical review, which is relevant to researchers in synthetic organic chemistry, focuses on asymmetric 1,3-dipolar cycloadditions with acrylamides.
Kissane, Marie, Maguire, Anita R.
core +1 more source
Color Routing and Beam Steering of Single‐Molecule Emission with a Spherical Silicon Nanoantenna
Advanced Functional Materials, EarlyView.We experimentally demonstrate broadband directional emission from single molecules using a single spherical silicon nanoparticle assembled via DNA origami. By varying nanoparticle (NP) size and emitter position, we achieve unidirectional emission, beam steering, and color routing at the nanoscale, revealing modal interference as the underlying ...
María Sanz‐Paz +9 more
wiley +1 more source
Molecules, 2014 Diastereoselective reactions between 4-formylpyrazoles, N-substituted maleimides and glycine derivates led to new series of pyrazolyldipyrrolo [3,4-a:3',4'-f]pyrrolizines and pyrazolylpyrrolo[3,4-c]pyrroles in good yields.
Jairo Quiroga +6 more
doaj +1 more source
Synthesis of novel phosphorylated chrysin derivatives by 1, 3-dipolar cycloaddition reaction
Phosphorus, Sulfur, and Silicon and the Related Elements, 2016 Through 1,3-dipolar cycloaddition reaction, 1,4,5-trisubstituted-1,2,3-triazole and phosphate-containing chrysin derivatives were synthesized with high yields. The target compounds were characterized by 1H, 31P, 13C NMR spectroscopy and HRMS.
Shaohua Zhu +5 more
openaire +1 more source
Hydrazones as Singular Reagents in Asymmetric Organocatalysis [PDF]
, 2016 This Minireview summarizes strategies and developments regarding the use of hydrazones as reagents in asymmetric organocatalysis, their distinct roles in nucleophile–electrophile, cycloaddition, and cyclization reactions.
Fernández Fernández, Rosario Fátima +4 more
core +1 more source
, 2003 Reactions of 3-lithiopropiolate 10 with isocyanates or diisocyanates gave monocarbamoylpropiolates 11a,b and bis-carbamoylpropiolates 12a−d, in 40−76% yields.
A. Katritzky +3 more
semanticscholar +1 more source
Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials
Advanced Materials, EarlyView.A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella +3 more
wiley +1 more source
CHIMIA, 1992 Adducts obtained by 1,3-dipolar cycloadditions to 2,3-dihydroisothiazol-3-one 1,1-dioxides are inclined to undergo a cheletropic process, by which the newly formed heterocyclic part undergoes aromatization, while SO2 is extruded and an ...
Kaspar F. Burri
doaj +2 more sources
Advanced Science, EarlyView.We have developed a Pd‐catalyzed oxidative cyclopropanation of 1,n‐enynes employing cyclic diacyl peroxides as bifunctional reagents that serve as both tether‐tunable oxidants and spatially controlled dicarboxylate anions. ABSTRACT Bicyclo[n.1.0]alkanes are highly valuable scaffolds in drug discovery and synthetic chemistry.
Ting Yuan, Lei Shi
wiley +1 more source