Results 111 to 120 of about 1,229 (176)

Decarboxylative 1,3-dipolar cycloadditions of l-proline. [PDF]

RSC Adv
Doraghi F, Serajian A, Karimian S, Ghanbarlou M, Moradkhani F, Larijani B, Mahdavi M.   +6 more
europepmc   +1 more source

Recent Progress in the Synthesis, Functionalization, and Biological Outlook of Pyrimidines. [PDF]

ACS Omega
Martis GJ, Mugali PS, Gaonkar SL.
europepmc   +1 more source

Divergent photochemical ring-replacement of isoxazoles. [PDF]

Nat Commun
Xu Y, Poletti L, Arpa EM, Roure B, Ruffoni A, Leonori D.   +5 more
europepmc   +1 more source

Recent trends for chemoselectivity modulation in one-pot organic transformations. [PDF]

RSC Adv
Chaudhary HR, Patel DM.
europepmc   +1 more source

Isochalcogenourea-catalyzed asymmetric (4 + 2)-heterocycloadditions of allenoates. [PDF]

Chem Lett
Waser M.
europepmc   +1 more source

<i>One-pot</i> dearomatizative telescoped addition of <i>C</i>-nucleophiles to fluorinated 1,2,4-oxadiazoles followed by regioselective <i>N</i>-functionalization.

Org Chem Front
Castiglione D, Amata S, Lauria F, Maranzana A, Baldino S, Prado-Roller A, Castoldi L, Palumbo Piccionello A, Pace V, Comas Iwasita EI.   +9 more
europepmc   +1 more source

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2H-Azirines in medicinal chemistry

Chemistry of Heterocyclic Compounds, 2021
The review presents an analysis of studies published in the period 1971–2020 devoted to examination of the biological activity of natural and synthetic 2H-azirine derivatives, their use for bioconjugation, as well as search for some new synthetic methods of structural modification of azirines with the aim of improving their biological activity.
Mikhail Novikov, Nikolai Rostovskii
exaly   +2 more sources

Strained Small Nitrogen Heterocycles‐Azabicyclobutanes and Azirines

ChemistrySelect, 2023
Small ring nitrogen heterocycles, azabicyclobutanes and azirines, were investigated by computational methods in order to address the discrepancy between their regioisomers 1- and 2-azabicyclobutane and 1H- and 2H-azirines.
Joel F Liebman, Anita Rágyanszki, Bela Fiser   +2 more
exaly   +2 more sources

Carbamoyl Anion Addition to Azirines

Organic Letters, 2021
The addition of carbamoyl anions to azirines affords synthetically useful 2-aziridinyl amide building blocks. The reaction scope was explored with respect to both formamide and azirine, and the addition was found to be highly diastereoselective. A one-pot conversion of a ketoxime to an aziridinyl amide was demonstrated.
Michael J. Kerner, Christian A. Kuttruff, Maxim Chevliakov, Frederic G. Buono, Donghong A. Gao, Mariusz Krawiec, Carl A. Busacca, Chris H. Senanayake, Peter Wipf, Jonathan T. Reeves   +9 more
openaire   +2 more sources

Synthesis of 2-halo-2H-azirines [PDF]

Tetrahedron, 2001
[alpha]-Oxophosphonium ylides react with N-chlorosuccinimide, N-bromosuccinimide and N-iodosuccinimide in the presence of azidotrimethylsilane giving the corresponding haloazidoalkenes which were completely converted to the 2-halo-2H-azirines on heating ...
Ana Lopes
exaly   +1 more source