Results 171 to 180 of about 8,786 (262)

Rh(III)‐Catalyzed [4+2] Annulation of Imidazoles With α‐Diazocarbonyl Compounds: Direct Access to π‐Conjugated Imidazole‐Fused Isoquinolinone

European Journal of Organic Chemistry, Volume 29, Issue 23, 16 June 2026.
A Rh(III)‐catalyzed [4 + 2] annulation of 2‐aryl imidazoles/benzimidazoles with α‐diazocarbonyl compounds is developed for the synthesis of π‐conjugated imidazo/benzimidazo[2,1‐a]isoquinolinones systems. Mechanistic studies and control experiment reveal that the reaction proceeds via imidazole‐directed ortho C(sp2)–H activation, followed by carbene C–H
Ganesh P. Pawar, Duc Huy Le, Li Ching Shen, Sheng‐Cih Huang, Chung‐Ming Sun   +4 more
wiley   +1 more source

IPr**^(4-Bp)-Highly Hindered, Ring Extended N-Heterocyclic Carbenes. [PDF]

Organometallics
Sha Y, Chu W, Lalancette R, Szostak R, Szostak M.   +4 more
europepmc   +1 more source

Activation of Ge-H and Sn-H Bonds with N-Heterocyclic Carbenes and a Cyclic (Alkyl)(amino)carbene. [PDF]

Chemistry, 2023
Philipp MSM, Bertermann R, Radius U.
europepmc   +1 more source

Surface Characterization of N-Heterocyclic Carbenes on Gold and Silver: Exploring Distinct Crystalline Facets. [PDF]

Chemphyschem
Mahapatra S, Li L, Jiang N.
europepmc   +1 more source

Tricyanoborane-Functionalized Anionic N-Heterocyclic Carbenes: Adjustment of Charge and Stereo-Electronic Properties. [PDF]

Chemistry, 2022
Zapf L, Peters S, Bertermann R, Radius U, Finze M.   +4 more
europepmc   +1 more source

Free N-heterocyclic carbenes from Brønsted acidic ionic liquids: Direct detection by electrospray ionization mass spectrometry. [PDF]

Rapid Commun Mass Spectrom, 2022
Salvitti C, Pepi F, Managò M, Bortolami M, Michenzi C, Chiarotto I, Troiani A, de Petris G.   +7 more
europepmc   +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, Jonas Rettig, Tim‐Niclas Streit, Bob Barthel, Mélissa Calmels, Moritz Malischewski, Franz‐Lucas Haut   +6 more
wiley   +1 more source

IPr*^diNHC: Sterically Adaptable Dinuclear N-Heterocyclic Carbenes. [PDF]

Inorg Chem
Halikowska-Tarasek K, Ochędzan-Siodłak W, Dziuk B, Szostak R, Szostak M, Bisz E.   +5 more
europepmc   +1 more source

Catalytically Active Gold Nanomaterials Stabilized by N-heterocyclic Carbenes. [PDF]

Chem Asian J, 2021
Eisen C, Chin JM, Reithofer MR.
europepmc   +1 more source

Geminal Difunctionalization of Ketones via C─S Bond Insertion of Photogenerated Donor–Donor Diazo Compounds

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, Aryaman Pattanaik, Daniel Maddox, Lukas M. Sigmund, Giovanna Mejia, Sara Pahlén, Simon O. Angerer, Maria Schmoll, Lisa Marie Schneider, Nidhal Selmi, Mikhail Kabeshov, Giulia Bergonzini, Julia Rehbein, Burkhard König   +13 more
wiley   +1 more source