Results 91 to 100 of about 16,669 (224)
Recent Approaches for the Synthesis of Pyridine and Quinoline Cores Present in Natural Products
Advanced Synthesis &Catalysis, Volume 368, Issue 10, 19 May 2026.An anthology of the most recent methods used to synthesize pyridines and quinolines found in natural products over the last decade. Pyridines, quinolines, and their derivatives represent a class of significant heterocyclic compounds that are prevalent in a multitude of natural products, including alkaloids found in plants, fungi, insects, marine ...
Carl Bowman +2 more
wiley +1 more source
, 2016 In this study we prepared a series of polyesters containing electron deficient internal alkyne units derived from acetylene dicarboxylic acid in the main backbone.
Hizal, Gurkan +6 more
core +1 more source
Molecules, 2017 For the first time, arylmethylidene cyclohexanones that are non-symmetrical due to the presence of peripheral substituents were studied in 1,3-dipolar cycloaddition reactions.
Alexander Anis’kov +3 more
doaj +1 more source
Estudo das reações do acido de meldrum a bases de Schiff aromaticas [PDF]
, 1997 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciencias Fisicas e MatematicasOs compostos imínicos possuem reatividade semelhante a dos compostos carbonílicos, ambos apresentam ligações heteropolares insaturadas.
Rosa, Flavia Aparecida Fernandes da
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Beilstein Journal of Organic Chemistry, 2011 An efficient synthesis of 1,3-diaryl-4-halo-1H-pyrazoles was achieved. The synthesis involves the [3 + 2] dipolar cycloaddition of 3-arylsydnones and 2-aryl-1,1-dihalo-1-alkenes. The process proceeds smoothly in moderate to excellent yields. 1,3-Diaryl-4-
Yiwen Yang +4 more
doaj +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
1,3-dipolar cycloaddition reactions of C-60 with 3-phenyl-phthalazinium-1-olate. A theoretical study
, 2002 1,3-Dipolar cycloaddition products of the reaction between C-60 and 1-phenyl-phthalazinium-1-olate were studied within the framework of AM1(RHF) level. The reactions involving the double bond between two hexagons and a hexagon and a pentagon, as well as ...
Türker, Burhan Lemi
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The Reactivity of Addends in the 1,3-Dipolar Cycloaddition Reaction [PDF]
, 1984 The influence of donor-acceptor interactions and localisation energies on the reactivity of addends in the 1,3-dipolar cycloaddition reaction is examined.
Samuilov Y., Konovalov A.
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Peptide Macrocyclization via Cu-catalyzed 1,3-Dipolar Cycloaddition of Azomethine Ylides
Cyclic peptides are highly valued synthetic targets in organic and medicinal chemistry. The development of new synthetic methodologies for peptide macrocyclization, different from classical lactamization, is essential for the progress of the field ...
Francisco Javier, Adrio +4 more
core +1 more source
Intramolecular 1,3-dipolar cycloaddition of cyclo-1,3-diene-tethered nitrile oxides
, 2020 -Intramolecular 1,3-dipolar cycloaddition of cyclo-1,3-diene-and -1,3,5-triene-tethered nitrile oxides gave tricyclic isoxazolines as a single stereoisomer in most cases.
Kumar Reddy +5 more
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