Results 101 to 110 of about 60,247 (222)

2-(hydroxymethyl)pyridinium dihydrogenphosphate

open access: yes, 2003
The title compound, C6H8NO+.H2PO4-, consists of 2-(hydroxymethyl)pyridinium and dihydrogenphosphate ions. The dihydrogenphosphate moieties are linked into chains by pairs of P-O-H...O-P hydrogen bonds.
Harrison, WTA   +2 more
core   +1 more source

FLP Mediated Conversion of Difluorobenzylalkynes to Fluoroallenyl Oniums via an SN1’ Pathway

open access: yesChemistry – A European Journal, EarlyView.
Frustrated Lewis pair (FLP) selective C‒F activation of difluorobenzylalkynes allows the formation of fluoroallenic oniums via an SN1’ substitution pathway. The fluoroallenic onium salts are synthetic precursors that allow subsequent functionalization at allenic and onium positions.
Max Coles   +6 more
wiley   +1 more source

Mitochondrially targeted ceramides preferentially promote autophagy, retard cell growth, and induce apoptosis

open access: yesJournal of Lipid Research, 2011
C6-pyridinium (d-erythro-2-N-[6′-(1′′-pyridinium)-hexanoyl]sphingosine bromide [LCL29]) is a cationic mitochondrion-targeting ceramide analog that promotes mitochondrial permeabilization and cancer cell death.
Qi Hou   +8 more
doaj   +1 more source

Recognition of Pyridinium Guests by [8]Cycloparaphenylene Host

open access: yes, 2017
CycloParaPhenylenes ([n]CPPs) are fully conjugated macrocycles constituted by n para-linked benzene units (Figure), which exhibit size-dependent optical and electronic proprieties [1,2].
TALOTTA, CARMEN   +6 more
core  

π‐Extended Salphen Scaffolds Enable CO2 Electroreduction and Singlet Oxygen Generation

open access: yesChemistry – A European Journal, EarlyView.
New family of π‐extended salen ligands bearing phenylene bridge and tunable phenyl‐based substituents, and their corresponding boron difluoride complexes. Thanks to the extended π‐delocalization over the molecule, the ligands themselves show promising results in electrochemical CO2 reduction to CO, while the complexes act as efficient photosensitizers ...
Vincenzo Langellotti   +10 more
wiley   +1 more source

Pyridinium tosylate

open access: yes
The title compound (systematic name: pyridinium 4-methylbenzenesulfonate), C5H6N+·C7H7O3S−, is the pyridinium salt of para-toluenesulfonic acid. In the crystal, classical N—H...O hydrogen bonds as well as C—H...O contacts connect the cationic and anionic
Richard Betz, Eric Cyriel Hosten
core   +1 more source

Hybrid Macrocyclic Peptides — Synthetic Strategies to Diversify and Cyclize Peptide Libraries in Phage Display Selections

open access: yesChemistry – A European Journal, EarlyView.
Hybrid macrocyclic peptides unite genetically encoded peptide libraries with the structural complexity of synthetic small molecules. This Review critically analyzes phage‐compatible cyclization and diversification chemistries, highlights emerging opportunities beyond traditional cysteine‐based approaches, and outlines how future advances may enable the
Titia Rixt Oppewal, Clemens Mayer
wiley   +1 more source

4-(3-Ethoxy-4-hydroxystyryl)-1-methylpyridinium tosylate monohydrate

open access: yesActa Crystallographica Section E, 2009
In the title compound, C16H18NO2+·C7H7O3S−·H2O, the dihedral angle between the pyridyl and benzene rings of the pyridinium cation is 0.2 (1)°. The benzene ring of the tosylate anion makes a dihedral angle of 4.8 (2)°
S. Murugavel   +3 more
doaj   +1 more source

Synthesis and characterizations of pyridinium salts including poly(pyridinium salt)s and their applications

open access: yes, 2012
Pyridinium salts, both molecular and polymeric, are an interesting class of multifunctional materials that exhibit liquid-crystalline and light-emitting properties.
Jo, Tae Soo
core   +1 more source

Expanding the Scope of Indium in Frustrated Lewis Pair Chemistry

open access: yesChemistry – A European Journal, EarlyView.
All good things come in threes: The pyridine‐“protected” FLP tBu2InCH2PtBu2·Py shows three different kinds of reactivity: Besides “typical” FLP activity, it prefers formation of the “soft” isomers for substrates with multiple sites for FLP attack, but reacts with SO2 as a “masked” In/C FLP by insertion into the In─C bond.
Daniel N. Heuer   +5 more
wiley   +1 more source

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