Results 91 to 100 of about 5,480 (191)
European Journal of Organic Chemistry, Volume 29, Issue 24, 23 June 2026.The intramolecular nitrile oxide olefin [3 + 2]‐cycloaddition offers a reliable entry toward 2‐aza‐bicyclo[4.3.0]‐nonanes, a substructure found in several bioactive piperidine alkaloids. The required oxime precursors were prepared in non‐racemic form by Ir‐catalyzed asymmetric allylation and ring‐closing metathesis.
Alicia Köcher +5 more
wiley +1 more source
From [NHC─H]• to Persistent σ‐Complex Radicals: Photoinduced Radical Chemistry of Imidazolium Salts
Angewandte Chemie, Volume 138, Issue 24, 8 June 2026.Visible‐light excitation of electron donor–acceptor (EDA) complexes between imidazolium salts and triarylamines enables controlled single‐electron transfer (SET) and reveals a family of carbene‐centered σ‐complex radical cations. Cryogenic electron paramagnetic resonance (EPR) captures the elusive [NHC─H]• intermediate and its thermal evolution into ...
Filipp M. Kolomeychuk +4 more
wiley +2 more sources
1,1‐and 1,2‐Diborylalkenes: Preparation and Synthetic Applications
Advanced Synthesis &Catalysis, Volume 368, Issue 12, 17 June 2026.In this review, we highlight recent advances in the synthesis and reactivity of 1,1‐diborylalkenes and 1,2‐diborylalkenes, along with various transformations leading to C‐C, C‐heteroatom, and multicomponent products. By providing a comprehensive and practical resource, this review aims to assist researchers in exploring the synthetic utility of 1,1 and
Jayaram Vankudoth +2 more
wiley +1 more source
Chemistry – A European Journal, Volume 32, Issue 23, 16 June 2026.A readily accessible, air‐ and moisture‐stable palladium precatalyst, [Pd(1‐MeNAP)(tBuBrettPhos)]OTf, enables the direct N‐arylation of NH‐sulfoximines with (hetero)aryl chlorides under exceptionally mild conditions ideal for late‐stage diversification of drug‐like scaffolds.
Sourav Manna +5 more
wiley +1 more source
(S,Z)-1,4-Bis(benzyloxy)hexa-3,5-dien-2-ol
MolbankNaturally occurring carbohydrates serve as useful building blocks, and various derivatives have been employed in natural product syntheses. For instance, some aldoses can be converted to 1,3-dienes via the Wittig reaction at the anomeric carbon ...
Akihiro Iyoshi +3 more
doaj +1 more source
Formation of Bifunctional Octasilsesquioxanes via Silylative Coupling and Cross-Metathesis Reaction. [PDF]
Materials (Basel), 2020 Bołt M +4 more
europepmc +1 more source
European Journal of Organic Chemistry, Volume 29, Issue 22, 9 June 2026.A cationic gallium(III) catalyst enables rapid construction of substituted cyclopentenes via tandem carbonyl‐ene metathesis/Friedel–Crafts coupling. Electronic tuning of alcohol electrophiles allows access to diverse, densely functionalized rings in a single operation.
Arnaud Espied +6 more
wiley +1 more source
Preparation of Functionalized α,β-Unsaturated Sulfonamides via Olefin Cross-Metathesis. [PDF]
Org Lett, 2020 Woźniak Ł +4 more
europepmc +1 more source
Preparation of Key Intermediates for the Syntheses of Coenzyme Q10 and Derivatives by Cross-Metathesis Reactions. [PDF]
Molecules, 2020 Nguyen T, Mac H, Pham P.
europepmc +1 more source
Cross metathesis of allyl alcohols
, 2013 Under standard conditions the cross metathesis of allyl alcohols and methyl acrylate is accompanied by the formation of ketones, resulting from uncontrolled and undesired double bond isomerization. By conducting the CM in the presence of phenol, the catalyst loading and the reaction time required for quantiative conversion can be reduced, and ...
Schmidt, Bernd (Prof. Dr.) +1 more
openaire +1 more source