Pyridine’s ring normal modes as footprints for its derivatives: The impact of perfluorination
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Fluorine Chemistry"
DOI: 10.1016/j.jfluchem.2020.109716
Abstract: Abstract The effects of full fluorination of pyridine, quinoline, 1,8-naphthyridine and 1,10-phenathroline were investigated through quantum mechanical calculations using pyridine as a reference. Among their vibrational normal modes, 6 out of 7 ring related normal… read more here.
Keywords: pyridine ring; modes footprints; ring normal; perfluorination ... See more keywords
Cyclic acyl amidines as unexpected C4-donors for fully substituted pyridine ring formation in the base mediated reaction with malononitrile
Sign Up to like & getrecommendations! Published in 2019 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2019.06.038
Abstract: Abstract A new one-step, pseudo four-component approach for the synthesis of fully substituted pyridines via ring-opening of the cyclic acyl amidine of 3-amino-1 H -isoindol-1-one and its aza-analogues during the reaction with malononitrile in the… read more here.
Keywords: pyridine ring; cyclic acyl; reaction; reaction malononitrile ... See more keywords
Mechanistic Insights into Pyridine Ring Degradation Catalyzed by 2,5-Dihydroxypyridine Dioxygenase NicX.
Sign Up to like & getrecommendations! Published in 2022 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.1c03370
Abstract: 2,5-Dihydroxypyridine dioxygenase (NicX) from Pseudomonas putida KT2440 is a mononuclear non-heme iron oxygenase that can catalyze the oxidative pyridine ring cleavage. Recently, the reported crystal structure of NicX has lent support to an apical dioxygen… read more here.
Keywords: pyridine ring; ring degradation; dioxygenase nicx; dihydroxypyridine dioxygenase ... See more keywords
Tuning Photophysical Properties via Positional Isomerization of the Pyridine Ring in Donor–Acceptor-Structured Aggregation-Induced Emission Luminogens Based on Phenylmethylene Pyridineacetonitrile Derivatives
Sign Up to like & getrecommendations! Published in 2023 at "Molecules"
DOI: 10.3390/molecules28073282
Abstract: A series of aggregation-induced emission (AIE)-featured phenylmethylene pyridineacetonitrile derivatives named o-DBCNPy ((Z)-3-(4-(di-p-tolylamino)phenyl)-2-(pyridin-2-yl)acrylonitrile), m-DBCNPy ((Z)-3-(4-(di-p-tolylamino)phenyl)-2-(pyridin-3-yl)acrylonitrile), and p-DBCNPy ((Z)-3-(4-(di-p-tolylamino)phenyl)-2-(pyridin-4-yl)acrylonitrile) have been synthesized by tuning the substitution position of the pyridine ring. The linkage manner of the pyridine… read more here.
Keywords: photophysical properties; induced emission; emission; aggregation induced ... See more keywords