Azulene, Reactivity, and Scientific Interest Inversely Proportional to Ring Size; Part 1: The Five-Membered Ring
AC Razus - Symmetry, 2023 - mdpi.com
The lack of azulene symmetry with respect to the axis perpendicular to a molecule creates
an asymmetry of the electronic system, increasing the charge density of the five-atom ring …
an asymmetry of the electronic system, increasing the charge density of the five-atom ring …
Electrochemistry of Rhodanine Derivatives as Model for New Colorimetric and Electrochemical Azulene Sensors for the Detection of Heavy Metal Ions
OT Matica, C Musina, AG Brotea, EM Ungureanu… - Symmetry, 2023 - mdpi.com
Rhodanine (R) is a heterocycle having complexing properties for heavy metal (HM) ions.
Considering the similar electron-donating character of diethylaminobenzene and azulene …
Considering the similar electron-donating character of diethylaminobenzene and azulene …
[HTML][HTML] Rapid and efficient uncatalyzed knoevenagel condensations from binary mixture of ethanol and water
JMGO Ferreira, J Resende Filho, PK Batista… - Journal of the Brazilian …, 2018 - SciELO Brasil
This paper presents a new green protocol for Knoevenagel condensations of aldehydes and
compounds with an active methylene group in a binary mixture of ethanol/water (3: 7, v/v) …
compounds with an active methylene group in a binary mixture of ethanol/water (3: 7, v/v) …
[HTML][HTML] Polyazulene-Based Materials for Heavy Metal Ion Detection. 2. (E)-5-(azulen-1-yldiazenyl)-1H-Tetrazole-Modified Electrodes for Heavy Metal Sensing
Azulene-based materials present very appealing properties for the preparation of advanced
materials. They can be irreversibly electrooxidated, leading to polymers, which can be …
materials. They can be irreversibly electrooxidated, leading to polymers, which can be …
[HTML][HTML] 1-vinylazulenes with oxazolonic ring-potential ligands for metal ion detectors; synthesis and products properties
M Cristea, L Bîrzan, F Dumitrascu, C Enache… - Symmetry, 2021 - mdpi.com
As a continuation of research on 1-vinylazulenes synthesis, on their physico–chemical
properties as well as on their use as colorimetric and electrochemical materials for the …
properties as well as on their use as colorimetric and electrochemical materials for the …
Electrochemical Comparison on New (Z)-5-(Azulen-1-Ylmethylene)-2-Thioxo-Thiazolidin-4-Ones
EM Ungureanu, M Popescu, GL Tatu, L Birzan… - Symmetry, 2021 - mdpi.com
Three (Z)-5-(azulen-1-ylmethylene)-2-thioxo-thiazolidin-4-ones are electrochemically
characterized by cyclic voltammetry, differential pulse voltammetry, and rotating disk …
characterized by cyclic voltammetry, differential pulse voltammetry, and rotating disk …
[HTML][HTML] Sulfated polyborate as Bronsted acid catalyst for Knoevenagel condensation
We have developed the use of Bronsted acid for Knoevenagel condensation. Sulfated
polyborate has been used for efficient Knoevenagel condensation of aromatic, heterocyclic …
polyborate has been used for efficient Knoevenagel condensation of aromatic, heterocyclic …
[PDF][PDF] New azulene modified electrodes for heavy metal ions recognition
GL Arnold, IG Lazar, GO Buica, EM Ungureanu… - Bulg. Chem …, 2017 - bcc.bas.bg
(E)-2-thioxo-5-((4, 6, 8-trimethylazulen-1-yl) methylene) thiazolidin-4-one (L) was
electrochemically characterized by cyclic voltammetry, differential pulse voltammetry and …
electrochemically characterized by cyclic voltammetry, differential pulse voltammetry and …
[PDF][PDF] New azulene modified electrodes for heavy metal sensing
MD Pop, V Anastasoaie, MA Popescu, A Oprisanu… - Rev. Chim, 2017 - academia.edu
The electrochemical characterization of 2, 6-bis ((E)-2-(furan-2-yl) vinyl)-4-(5-isopropyl-3, 8-
dimethylazulen-1-yl) pyridine has been performed by cyclic voltammetry, differential pulse …
dimethylazulen-1-yl) pyridine has been performed by cyclic voltammetry, differential pulse …
The synthesis and characterization of ylideneisoindolinones
BR Schrage, CA Farmer, VN Nemykin… - Journal of Porphyrins …, 2021 - World Scientific
1, 3-Diiminoisoindoline (DII) and the closely related molecule, iminoisoindolinone are
important precursors in the synthesis of macrocycles and chelates such as phthalocyanines …
important precursors in the synthesis of macrocycles and chelates such as phthalocyanines …