Aromaticity from the viewpoint of molecular geometry: application to planar systems

TM Krygowski, H Szatylowicz, OA Stasyuk… - Chemical …, 2014 - ACS Publications
Following the history of organic chemistry, studies on relations between chemical (and later
physicochemical) properties and the structure of chemical species in question are the heart …

Tautomeric equilibria in relation to pi-electron delocalization

ED Raczyńska, W Kosińska, B Ośmiałowski… - Chemical …, 2005 - ACS Publications
Tautomerism, a particular case of isomerism, plays an important role in modern organic
chemistry, biochemistry, medicinal chemistry, pharmacology, molecular biology, and life …

Tautomerism in hydroxynaphthaldehyde anils and azo analogues: a combined experimental and computational study

WMF Fabian, L Antonov, D Nedeltcheva… - The Journal of …, 2004 - ACS Publications
The enol imine⇄ enaminone tautomerization constants, KT, and thermodynamic parameters,
Δ HT and Δ ST, of 1-hydroxy-2-naphthaldehyde Schiff bases are determined by UV/vis …

Influence of substituent and benzoannulation on photophysical properties of 1-benzoylmethyleneisoquinoline difluoroborates

B Ośmiałowski, A Zakrzewska… - The Journal of …, 2015 - ACS Publications
A series of 1-benzoylmethyleneisoquinoline difluoroborates were synthesized, and their
photophysical properties were determined. The effect of the substituent and …

Solubility and stability enhancement of curcumin in Soluplus® polymeric micelles: a spectroscopic study

S Rani, S Mishra, M Sharma, A Nandy… - Journal of Dispersion …, 2020 - Taylor & Francis
Polymer micelles are considered to be efficient carriers for solubilizing and stabilizing
various hydrophobic drugs. In order to address the problem of poor bioavailability of …

Substituent effect in 2-benzoylmethylenequinoline difluoroborates exhibiting through-space couplings. Multinuclear magnetic resonance, X-ray diffraction, and …

A Zakrzewska, E Kolehmainen… - The Journal of …, 2013 - ACS Publications
The series of nine 2-benzoylmethylenequinoline difluoroborates have been synthesized and
characterized by multinuclear magnetic resonance, X-ray diffraction (XRD), and …

2-acylamino-6-pyridones: breaking of an intramolecular hydrogen bond by self-association and complexation with double and triple hydrogen bonding counterparts …

B Ośmiałowski, E Kolehmainen… - The Journal of Organic …, 2012 - ACS Publications
2-Acylamino-6-pyridones (acyl= RCO, where R= Me, Et, i-Pr, t-Bu, and 1-adamantyl) were
previously characterized by X-ray diffractometry and solid-state NMR techniques by us. One …

Effect of π‐Electron Delocalization on Tautomeric Equilibria–Benzoannulated 2‐Phenacylpyridines

R Gawinecki, E Kolehmainen, H Loghmani‐Khouzani… - 2006 - Wiley Online Library
Most benzoannulated 2‐methylpyridines react with phenyllithium and substituted alkyl
benzoates to give the corresponding 2‐phenacylpyridines. 3‐Methylisoquinoline is …

NMR crystallography of 2-acylamino-6-[1H]-pyridones: Solid-state NMR, GIPAW computational, and single crystal X-ray diffraction studies

B Ośmiałowski, E Kolehmainen, S Ikonen… - Journal of Molecular …, 2011 - Elsevier
2-Acylamino-6-[1H]-pyridones [acyl= RCO, where R= methyl (1), ethyl (2), iso-propyl (3), tert-
butyl (4), and 1-adamantyl (5)] have been synthesized and characterized by NMR …

Novel applications of dynamic NMR in organic chemistry

E Kolehmainen - Annual Reports on NMR Spectroscopy, 2003 - Elsevier
This review article is oriented on NMR applications in studying various dynamic processes
of organic molecules. The topic as a whole is too large to be covered exhaustively in one …