Results 131 to 140 of about 9,152 (195)

Versatile Pyridinium Trifluoroborate Platform for Facile Preparation of ¹⁸F‑Labeled PET Tracers in Water. [PDF]

ACS Cent Sci
Li W, Li Y, Lyu T, Chen Y, Ma J, Fang Y, Zhang L.   +6 more
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<i>Ortho</i>-Methylation of pyridine <i>via</i> intramolecular <i>N</i>-methyl migration. [PDF]

Chem Sci
Huang SY, Li S, Li MY, Lv C, Wang SX, Xue WC, Xu JQ, Zheng XL, Li RX, Chen H, Fu HY.   +10 more
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Radical/Ylide-Tunable Pyridinium Salt Enables Photo/Thermocatalytic Divergent [3 + 2] Cycloadditions. [PDF]

JACS Au
Sun F, Kuang Y, Wu X, Lin Z, Huang Z, Liu B, Li G, Zhang M, Hong L.   +8 more
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Heterogeneous photocatalytic C4 remote fluorosulfonamidation of pyridines. [PDF]

Chem Sci
Xiang P, Sun K, Chen X, Li K, Chen X, Zhang Y, Qu L, Yu B.   +7 more
europepmc   +1 more source

Cation-Cation Photosensitization for Protein Ligation and Intracellular Catalysis. [PDF]

J Am Chem Soc
Agarwal V, Pham H, Bartko SG, Taylor MT.
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HFIP-Induced Formation of <i>O</i>-Aryl Oxyallyl Cation and Nucleophilic Addition with Sodium Sulfinate Salt. [PDF]

J Org Chem
Aldás-Bedón J, Adebanji AO, Thombal RS, Armendariz-Gonzalez E, Mureka EW, Fronczek FR, Kartika R.   +6 more
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Phosphonium Ions as Activating Groups for the Selective Alkylation of Pyridines and Polyazines. [PDF]

J Am Chem Soc
Brunner DA, Thomas DC, Steenback KR, Rozema SD, McNally A.   +4 more
europepmc   +1 more source

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Syntheses Using Pyridinium Salts

Angewandte Chemie International Edition in English, 1963
AbstractThis review discusses syntheses leading to a new type of N‐vinylpyridinium salts, to novel anionocyanines, to aminophenazines and alloxazines, as well as to (aza‐) dehydroquinolizinium, acridizinium, and morphanthridizinium salts. In addition, Mannich reactions and aminoalkylations at active methylene groups of cycloimmonium salts, and their ...
exaly   +2 more sources

The synthetic potential of pyridinium salt photochemistry

Photochemical & Photobiological Sciences, 2008
The discovery in the 1970s by Kaplan, Wilzbach and Pavlik that pyridinium salts undergo a unique cyclization reaction to produce bicyclic-aziridines was virtually unrecognized for nearly three decades. It was only comparatively recently that the process was explored in more detail and its synthetic potential exploited.
Jiwen, Zou, Patrick S, Mariano
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Infrared spectra of pyridinium salts in solution—III. Associations of pyridinium salts with bases

Spectrochimica Acta Part A: Molecular Spectroscopy, 1983
Associations of pyridinium salts X-Py+HA− (A− = SbCl−6, ClO−4, BF−4, I−, Br− and Cl−) with a wide series of aprotic bases and with protic solvents (water and fluoroalcohols) have been studied by infrared spectroscopic methods. Constants of association Ka of the pyridinium salts with the bases at different temperatures have been measured and enthalpy ...
S.E. Odinokov, A.A. Mashkovsky, A.A. Nabiullin   +2 more
openaire   +1 more source