Results 21 to 30 of about 114,903 (176)
Frontiers in Chemistry, 2022 A chemodivergent photocatalytic approach to 1-pyrrolines and 1-tetralones from alkyl bromides and vinyl azides has been developed through chemoselectively controllable intermolecular [3 + 2] and [4 + 2] cyclization.
Shijing Tu +9 more
doaj +1 more source
Synthesis of α-tertiary primary amines and 1,2-amino alcohols from vinyl azides by light induced denitrogenative alkylarylation/dialkylation [PDF]
, 2023 Sterically congested α-tertiary primary amines are ubiquitous substructures in pharmaceutical and agrochemical agents yet are challenging to access.
Sifan, Li +3 more
core +1 more source
Ene-gamma-lactam synthesis via (3+2) vinyl azide-enolate cycloaddition: Enolate addition to vinyl triazolinone intermediates [PDF]
, 2022 Vinyl azides have undergone a recent renaissance as versatile synthetic reagents, however their reactivity as 1,3-dipoles in (3+2) cycloadditions remains underexplored.
Margaret, Brimble +7 more
core +2 more sources
Bortrifluorid-katalysierte Umsetzung von 2H-Azirinen und Vinylaziden mit Nitrilen
CHIMIA, 1975 The reaction of 2H-azirines or vinyl azides with nitriles in the presence of boron trifluoride etherate, to yield the corresponding imidazoles (see table), is described.
Heinz Bader, Hans-Jürgen Hansen
doaj +1 more source
Copper-Catalyzed Amination of Vinyl Azides to α-Ketoamides
SynOpen, 2019 An efficient approach for the amination of vinyl azides with N,N-dialkylacylamides has been developed. By using this protocol, structurally important α-ketoamides can be easily synthesized.
Yu Wang +6 more
doaj +1 more source
Continuous multistep synthesis of 2-(azidomethyl)oxazoles
Beilstein Journal of Organic Chemistry, 2018 An efficient three-step protocol was developed to produce 2-(azidomethyl)oxazoles from vinyl azides in a continuous-flow process. The general synthetic strategy involves a thermolysis of vinyl azides to generate azirines, which react with bromoacetyl ...
Thaís A. Rossa +4 more
doaj +1 more source
, 2011 Transition Metal-Catalyzed Intramolecular Nitrogen-Atom Transfer Reactions of Aryl- and Vinyl ...
Benjamin J. Stokes (2213683)
core +4 more sources
Mn(III)-Catalyzed Synthesis of Pyrroles from Vinyl Azides and 1,3-Dicarbonyl Compounds
, 2016 Polysubstituted N-H pyrroles with a wide variety of substituents were prepared from vinyl azides and 1,3-dicarbonyl compounds by using Mn(III) complexes as ...
Koichi Narasaka (2411140) +3 more
core +4 more sources
Expeditious diastereoselective synthesis of elaborated ketones via remote Csp3–H functionalization
Nature Communications, 2017 C-H activation is a powerful method to form functionalised molecules, but is particularly challenging for unactivated sp3sites. Here the authors report a directing-group-free radical cascade process for converting vinyl azides and carboxylic acids to ...
Wei Shu +3 more
doaj +1 more source
Conversions of sulfone-containing vinyl azides to vinyl triazoles and enamides
Tetrahedron, 2021 Abstract- Reported is the efficient conversion of four 3-sulfonyl prop-1-enyl azides into seven 3-sulfonyl prop-1-enyl triazoles. Results demonstrate that the stereochemical integrity of the alkene was maintained during this process. The conversion of (Z)-((3-azidoallyl)sulfonyl)benzene into the corresponding Z-enamides proved more challenging and ...
Niall Collins +2 more
openaire +1 more source