Results 1 to 10 of about 27,886 (261)
Asymmetric 1,3-dipolar cycloadditions of acrylamides [PDF]
Chemical Society Reviews, 2010 This critical review, which is relevant to researchers in synthetic organic chemistry, focuses on asymmetric 1,3-dipolar cycloadditions with acrylamides.
Anita R Maguire
exaly +8 more sources
Dynamic Catalytic Highly Enantioselective 1,3-Dipolar Cycloadditions. [PDF]
Angew Chem Int Ed Engl, 2021 In dynamic covalent chemistry, reactions follow a thermodynamically controlled pathway through equilibria. Reversible covalent‐bond formation and breaking in a dynamic process enables the interconversion of products formed under kinetic control to ...
Yildirim O +5 more
europepmc +9 more sources
Green Protocols in Heterocycle Syntheses via 1,3-Dipolar Cycloadditions [PDF]
Frontiers in Chemistry, 2019 The aim of this review is to provide an overview of green protocols for the organic synthesis of heterocycles via 1,3-dipolar cycloaddition. Particular attention has been devoted to the use of green solvents; reactions performed in ionic liquids ...
Katia Martina +4 more
doaj +3 more sources
Mechanistic DFT Study of 1,3-Dipolar Cycloadditions of Azides with Guanidine [PDF]
Molecules, 2023 Density functional calculations SMD(chloroform)//B3LYP/6-311+G(2d,p) were employed in the computational study of 1,3-dipolar cycloadditions of azides with guanidine.
Ivana Antol +2 more
doaj +5 more sources
1,3-Dipolar cycloadditions of azomethine imines. [PDF]
ChemInform, 2015 Azomethine imines are considered 1,3-dipoles of the aza-allyl type which are transient intermediates and should be generated in situ but can also be stable and isolable compounds.
C. Nájera, J. Sansano, M. Yus
semanticscholar +9 more sources
Understanding the 1,3-Dipolar Cycloadditions of Allenes. [PDF]
Chemistry, 2020 AbstractWe have quantum chemically studied the reactivity, site‐, and regioselectivity of the 1,3‐dipolar cycloaddition between methyl azide and various allenes, including the archetypal allene propadiene, heteroallenes, and cyclic allenes, by using density functional theory (DFT).
Yu S +4 more
europepmc +7 more sources
An Overlooked Pathway in 1,3-Dipolar Cycloadditions of Diazoalkanes with Enamines. [PDF]
Angew Chem Int Ed Engl, 2022 AbstractMethyl diazoacetate reacts with 1‐(N‐pyrrolidino)cycloalkenes to give products of 1,3‐dipolar cycloadditions and azo couplings. The kinetics and mechanisms of these reactions were investigated by NMR spectroscopy and DFT calculations. Orthogonal π‐systems in the 1,3‐dipoles of the propargyl‐allenyl type allow for two separate reaction pathways ...
Li L +5 more
europepmc +5 more sources
1,3-Dipolar cycloadditions of acridine with nitrile oxides [PDF]
ARKIVOC, 2002 Siteand regio-isomeric mono-cycloadducts 9 are formed in the reactions of mesito1b and dichloromesitonitrile oxide 1c with acridine 6 in a 1:2 ratio, while the reaction of 1b and 6 in a 10:1 ratio afforded, besides the mono-cycloadduct 9b and traces of the corresponding oxime 10b, the bis-cycloadduct 12 with the opposite regiochemistry to that of the ...
Antonino Corsaro +5 more
doaj +9 more sources
Catalytic enantioselective 1,3-dipolar cycloadditions of azomethine ylides for biology-oriented synthesis. [PDF]
Acc Chem Res, 2014 Conspectus Cycloaddition reactions are among the most powerful methods for the synthesis of complex compounds. In particular, the development and application of the 1,3-dipolar cycloaddition, an important member of this reaction class, has grown ...
Narayan R +4 more
europepmc +2 more sources
1,3-Dipolar Cycloadditions of Diazo Compounds in the Presence of Azides. [PDF]
Org Lett, 2016 The diazo group has untapped utility in chemical biology. The tolerance of stabilized diazo groups to cellular metabolism is comparable to that of azido groups. However, chemoselectivity has been elusive, as both groups undergo 1,3-dipolar cycloadditions
Aronoff MR, Gold B, Raines RT.
europepmc +2 more sources