Results 61 to 70 of about 1,101 (192)
Journal of Physical Organic Chemistry, Volume 39, Issue 4, April 2026.New calculations have been applied to the pyrolysis of pyrrole under shock‐tube conditions and to the radical‐radical reaction between allyl and •CN at low temperature and pressure, using the same mechanistic scheme for both. ABSTRACT The pyrolysis of pyrrole has previously been studied in shock‐tube experiments and in jet‐stirred reactors. The results
Barry K. Carpenter
wiley +1 more source
Recent Contributions of Organic Synthesis to Forensic Science
ChemPlusChem, Volume 91, Issue 2, February 2026.Forensic science is a multidisciplinary field that plays a vital role in providing scientific evidence for criminal investigations. This review highlights advances and opportunities at the interface between organic synthesis and forensic science, with applications in drug identification, forensic toxicology, and latent fingerprint detection and ...
Gustavo dos Santos Martins +3 more
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2H-Pyrrole und Pyrrole aus 3-Phenyl-2H-azirinen
CHIMIA, 1976 Vinyl-phosphonium salts [2] and phenyl-vinyl-sulfone or divinylsulfone react with benzonitril-methylides a (which are photochemically generated from 3-phenyl-2H-azirines 1 and 2) to give, via the nonisolated intermediates of type b, 2H-pyrrole 4 and the
Ulrich Widmer +4 more
doaj +1 more source
Trapping an Aryl‐substituted Borete Intermediate in Catalyst‐free 1,5‐Diborocine Synthesis
European Journal of Inorganic Chemistry, Volume 29, Issue 4, February 1, 2026.A transient aryl‐substituted borete was trapped as its adduct with 4‐(dimethylamino)pyridine (dmap) and fully characterised. While the dmap adduct is highly kinetically stable, the free borete could not be observed in the absence of dmap. Density‐functional calculations support a rapid dimerisation of the borete via (4 + 4) cycloaddition, yielding a 1 ...
Douglas Turnbull, Marc‐André Légaré
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, 2016 A ruthenium-catalyzed intermolecular [3 + 2] cycloaddition of 2H-azirines and activated alkynes is reported, which provides polysubstituted pyrroles in moderate to good yields.
Hao Yan (134033) +4 more
core +2 more sources
Development of a Copper‐Free Click Reaction for Asymmetric Rh Diene Catalysis Under Confinement
Advanced Synthesis &Catalysis, Volume 368, Issue 1, January 2026.A copper‐free amino–yne click reaction enables the selective functionalization of chiral diene ligands with both soluble and immobilized amines. Substituent‐controlled stereoselectivity affords (E)‐ and (Z)‐enaminone ligands, which are converted into Rh complexes for asymmetric catalysis under homogeneous and heterogeneous conditions.
Manuel Kirchhof +10 more
wiley +1 more source
Synthetic Strategies to Access Fluorinated Azoles
European Journal of Organic Chemistry, Volume 28, Issue 47, December 15, 2025.This review highlights recent synthetic strategies for introducing fluorine groups (mono‐, di‐, and trifluoromethylation) into 11 major azole classes, identifying research gaps to inform future innovations in materials science, medicinal chemistry, and biomedical research.
Mohammed K. Abd El‐Gaber +4 more
wiley +1 more source
The chemistry of enaminones, diazocarbonyls and small rings: our contribution
Journal of the Brazilian Chemical Society, 2003 After thirty two years in Brazil and retired from Universidade Estadual de Campinas the author wishes to present this account, a summary of a large part of the research in synthetic methodology developed by the research groups of Albert J.
Kascheres Concetta Montanile
doaj
Angewandte Chemie, Volume 137, Issue 48, November 24, 2025.Der Einbau verschiedener Chalkogenatome (O, S, Se oder Te) in häufig verwendete Isochalkogenharnstoff‐Organokatalysatoren ermöglicht die Feinabstimmung ihrer Nucleophilie und Basizität. Kinetische und thermodynamische Deskriptoren für die molekularen Eigenschaften der Katalysatoren werden als Werkzeuge zur Vorhersage ihrer Effizienz eingeführt und in ...
Lotte Stockhammer +8 more
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Angewandte Chemie International Edition, Volume 64, Issue 48, November 24, 2025.Incorporation of different chalcogen atoms allows for the fine‐tuning of nucleophilicity and basicity of commonly used isochalcogenourea organocatalyst scaffolds. Kinetic and thermodynamic descriptors for the molecular properties of the catalysts are introduced as tools to predict their efficiency and tested in acyl transfer and allenoate activation ...
Lotte Stockhammer +8 more
wiley +1 more source