Results 11 to 20 of about 2,054 (167)

Nickel/biimidazole-catalyzed electrochemical enantioselective reductive cross-coupling of aryl aziridines with aryl iodides

open access: yesNature Communications, 2023
Here, we report an asymmetric electrochemical organonickel-catalyzed reductive cross-coupling of aryl aziridines with aryl iodides in an undivided cell, affording β-phenethylamines in good to excellent enantioselectivity with broad functional group ...
Yun-Zhao Wang   +7 more
doaj   +1 more source

A Mild and Efficient Method for the Syntheses and Regioselective Ring-Opening of Aziridines

open access: yesSynOpen, 2017
We have developed a new synthetic method for the synthesis of aziridines using Chloramine-T as an effective reagent in the presence of NH2OH·HCl and NaIO4.
Nirnita Chakraborty Ghosal   +5 more
doaj   +1 more source

Novel MCM-41 Supported Dicationic Imidazolium Ionic Liquids Catalyzed Greener and Efficient Regioselective Synthesis of 2-Oxazolidinones from Aziridines and Carbon Dioxide

open access: yesMolecules, 2022
A type of MCM-41 supported dicationic imidazolium ionic liquid nanocatalyst has been synthesized and found to be competent for the synthesis of 2-oxazolidinones through the sustainable chemical conversion of CO2 with aziridines.
Yulin Hu, Lili Yang, Xiaobing Liu
doaj   +1 more source

Preface to “Aziridine Chemistry” [PDF]

open access: yesMolecules, 2021
Aziridine is a nitrogen-containing three-membered ring with similar ring strain energy as other three-membered ring compounds, including cyclopropane and oxirane [...]
openaire   +3 more sources

Asymmetric synthesis of CF2-functionalized aziridines by combined strong Brønsted acid catalysis

open access: yesBeilstein Journal of Organic Chemistry, 2020
A diastereo- and enantioselective approach to access chiral CF2-functionalized aziridines from difluorodiazoethyl phenyl sulfone (PhSO2CF2CHN2) and in situ-formed aldimines is described.
Xing-Fa Tan, Fa-Guang Zhang, Jun-An Ma
doaj   +1 more source

Pd-Catalyzed Cycloaddition of Bicyclic Aziridine with Isocyanates

open access: yesMedical Sciences Forum, 2022
Nitrogen-containing heterocycles can have several applications in the pharmaceutical industry since they contain a wide spectrum of biological activities. Imidazolidinones have shown activity against leukemia, lung cancer, and metabolic disorders.
Mariana Crespo Monteiro   +2 more
doaj   +1 more source

Preparation and ring-opening reactions of N-diphenylphosphinyl vinyl aziridines

open access: yesBeilstein Journal of Organic Chemistry, 2013
Predominantly (E)-N-diphenylphosphinyl vinyl aziridines are prepared by a reaction of N-diphenylphosphinyl imines with α-bromoallyllithium in the presence of freshly fused ZnCl2.
Ashley N. Jarvis   +3 more
doaj   +1 more source

A sustainable strategy for the straightforward preparation of 2H-azirines and highly functionalized NH-aziridines from vinyl azides using a single solvent flow-batch approach

open access: yesBeilstein Journal of Organic Chemistry, 2021
The reported flow-batch approach enables the easy preparation of 2H-azirines and their stereoselective transformation into highly functionalized NH-aziridines, starting from vinyl azides and organolithium compounds.
Michael Andresini   +2 more
doaj   +1 more source

Organocatalyzed enantioselective desymmetrization of aziridines and epoxides

open access: yesBeilstein Journal of Organic Chemistry, 2013
Enantioselective desymmetrization of meso-aziridines and meso-epoxides with various nucleophiles by organocatalysis has emerged as a cutting-edge approach in recent years.
Ping-An Wang
doaj   +1 more source

Recentes avanços na preparação de aziridinas. Aplicações sintéticas e implicações mecanísticas Recent advances in the preparation of aziridines and their application in organic synthesis

open access: yesQuímica Nova, 2007
This article surveys a selection of the most recent advances in aziridine synthesis. Novel synthetic methods and new insights into existing methodologies for the selective construction of the title compounds reported in the past decade are discussed in ...
Tula Beck Bisol, Marcus Mandolesi Sá
doaj   +1 more source

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