Results 161 to 170 of about 173,680 (267)

XXIV.—The formation of heterocyclic compounds

, 1900
Siegfried Ruhemann, H. E. Stapleton
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Hydrogen Isotope Exchange in Pyridine Catalyzed by an Iron(II) Imido Complex: Counterion‐Directed Regioselectivity

Angewandte Chemie International Edition, EarlyView.
Anionic high‐spin iron(II) imido complexes are catalysts for the hydrogen isotope exchange (HIE) reaction with pyridine as the substrate. The alkali metal counter‐cation plays critical roles in activating the substrate and facilitating deuteration. These complexes catalyze site‐selective α‐, α,β,γ‐, and β,γ‐deuteration of pyridine, where the counter ...
Bin Feng, Guorong Li, Yafei Gao, Nobuyuki Yamamoto, Maren Pink, Qian Peng, Jeremy M. Smith   +6 more
wiley   +1 more source

Organocatalytic Synthesis of Spiro-Bridged Heterocyclic Compounds via a Chemoselective Vinylogous Michael/Cyclization/Rearrangement Sequence. [PDF]

J Org Chem
Chen IT, Lin H, Han JL.
europepmc   +1 more source

PREPARATION AND APPLICATIONS OF HETEROCYCLIC COMPOUNDS IN ORGANIC CHEMISTRY

Ahmed Sharaf
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Reactions of phenyl(trichloromethyl)carbinol with substituted thioureas, thiobenzhydrazide, and amino thiols to form heterocyclic compounds¹ [PDF]

, 1979
Wilkins Reeve, W. Robert Coley
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From [NHC─H]• to Persistent σ‐Complex Radicals: Photoinduced Radical Chemistry of Imidazolium Salts

Angewandte Chemie International Edition, EarlyView.
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, Lars J. C. van der Zee, Simon Mathew, Bas de Bruin, J. Chris Slootweg   +4 more
wiley   +1 more source

Simultaneous Determination of 20 Nitrogen-Containing Heterocyclic Compounds in Soil by Supercritical Fluid Chromatography-Tandem Mass Spectrometry. [PDF]

Molecules
Vakhrameev SA, Ovchinnikov DV, Ul'yanovskii NV, Kosyakov DS.   +3 more
europepmc   +1 more source

Novel Heterocyclic Compounds for Treating Huntington's Disease. [PDF]

ACS Med Chem Lett
Sabnis RW, Sabnis AR.
europepmc   +1 more source

1-Indol-1-yl-propan-2-ones and related heterocyclic compounds as dual inhibitors of cytosolic phospholipase A2α and fatty acid amide hydrolase

, 2009
Laura Forster, Joachim Ludwig, Martina Kaptur, Stefanie Bovens, Alwine Schulze Elfringhoff, Angela Holtfrerich, Matthias Lehr   +6 more
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Studying characterization, synthesis, and properties of heterocyclic compounds produced from (triazole) derivatives: biological activity and toxicity [PDF]

Hussein Adnan Alawadi
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