Results 121 to 130 of about 9,657 (231)
Rhodium Catalyzed Arylation of Diazo Compounds with Aryl Boronic Acids
, 2016 A general and efficient synthesis of diarylacetate, a diarylmethine derivative, was accomplished through rhodium catalyzed direct arylation of diazo compounds with arylboronic acids.
Jayanta Ghorai (1626721) +1 more
core +1 more source
Azide‐to‐Diazo Transformation Facilitated by Michael Addition via Phosphazide Formation
Angewandte Chemie, Volume 138, Issue 23, 1 June 2026.A new type of Michael addition based on azide‐to‐diazo conversion is disclosed. This unusual transformation proceeds via 1,4‐addition accompanied by N─N bond cleavage of phosphazide intermediates under practical conditions. The high versatility of the resulting Michael adducts enables the synthesis of a wide variety of organonitrogen compounds ...
Tomoki Mano +3 more
wiley +2 more sources
Protocol for aqueous synthesis of bioactive quaternary ammonium betaine derivatives under blue LED
STAR ProtocolsSummary: Quaternary ammonium compounds exhibit diverse applications as antibiotics, as surfactants, in paper industries, in sewage treatment, and in aquaculture.
Suchismita Rath, Subhabrata Sen
doaj +1 more source
Sulfur‐Directed Construction of Vinyl Cyclopropanes from 1,3‐Dienes
Angewandte Chemie International Edition, Volume 65, Issue 25, 15 June 2026.Sulfur takes control. A pending thioether acts as a molecular compass, directing carbene addition to the 1,3‐diene scaffold with exceptional regio‑ and diastereocontrol to forge sulfur‐substituted vinyl cyclopropanes (S‐VCPs) — molecular architectures inaccessible via conventional cyclopropanation strategies.
Anna Keimer +6 more
wiley +1 more source
Diazo Transfer Reactions to 1,3-Dicarbonyl Compounds with Tosyl azide
, 2011 International audienceA practical protocol for the large-scale preparation of 2-diazo-1,3-dicarbonyl compounds is described by diazo-transfer reactions with tosyl azide followed by efficient chromatographic purifications on silica gel and/or ...
Marc Presset +7 more
core +1 more source
Angewandte Chemie International Edition, Volume 65, Issue 25, 15 June 2026.Geminal difunctionalization of readily available building blocks provides rapid access to molecular complexity. This work introduces a strategy for installing two distinct functional groups on a carbonyl carbon by transforming it into a donor–donor diazo compound, enabling both batch and flow applications with broad solvent compatibility.
Vincent George +13 more
wiley +1 more source
Photocatalytic Alkylation of Pyrroles and Indoles with α-Diazo Esters
, 2019 This article describes direct photoalkylation of electron-rich aromatic compounds with diazo compoiunds. C-2 alkylated indoles and pyrroles are obtained with good yields even though the photocatalyst (Ru(bpy)3Cl2) loading is as low as 0.075 mol %.
Jakub, Durka +2 more
core +1 more source
Bent CNN bond of diazo compounds, RR’(C=N+ =N?)
, 2012 The reaction of ninhydrin with benzophenone hydrazone afforded 2-diazo-3-diphenylmethylenehydrazono-1-indanone 1 and 2-diazo-1,3-bis(diphenylmethylenehydrazono)indan 2.
小林, 啓二 +4 more
core +1 more source
Bioconjugation Strategies for Revealing the Roles of Glycerophospholipids in Cells
ChemBioChem, Volume 27, Issue 11, 15 June 2026.Glycerophospholipids are the main class of phospholipids, essential for membrane structure, compartmentalization, and cellular signaling. To study their roles, innovative probes and advanced bioconjugation strategies have been developed, including by de novo lipid synthesis and bioorthogonal conjugation chemistry.
Brice Beauvais +5 more
wiley +1 more source
MoleculesIn a search for dyes photoactivatable with visible light, fluorenes with substituents at positions 2 and 7 were prepared, and their absorption and emission spectra were studied.
Andrei I. Savchenko +3 more
doaj +1 more source