62297-47-6Relevant academic research and scientific papers
A simple pyridine-based colorimetric chemosensor for highly sensitive and selective mercury(II) detection with the naked eye
Pan, Jian-Ting,Zhu, Fei,Kong, Lin,Yang, Long-Mei,Tao, Xu-Tang,Tian, Yu-Peng,Lu, Hong-Bo,Yang, Jia-Xiang
, p. 527 - 535 (2015/04/14)
Two easily-prepared pyridine-based derivatives of (Z)-2-(4-amino-phenyl)-3-(pyridine-4-yl)acrylonitrile (I) and (Z)-2-phenyl-3-(pyridin-4-yl)acrylonitrile (II ) were designed, synthesised and characterised. Due to the formation of a complex with Hg2+
Replacement Substituent Constants for Simple Heterocycles
Robinson, Charles N.,Wiseman, Leonard J. Jr.,Slater, Carl D.
, p. 4103 - 4112 (2007/10/02)
13C nmr absorptions are reported for the β-vinylic carbon atoms in 15 series of ethylenes bearing heterocyclic substituents.The data are used to establish the best single-parameter substituent constants, ?13, for the various heterocycles as replacements for para-substituted benzenes.Also reported are replacement dual substituent constants, including ?I and the various ?R scales needed in the Taft DSP treatment and those for F and R used in the Swain-Lupton treatment.Values of ?13, F, R, ?I, and ?Ro, respectively, for the various heterocycles as replacements for para-substituted benzenes are as follows: 2-furyl, -1.01 , 0.99, -2.51, 0.65, -0.60; 2-pyrryl, -2.53, 0.52, -5.09, -0.16, -0.62; 2-thienyl, -0.79, 2.49, -3.60, 1.82, -1.08; 3-thienyl, -0.40, 1.04, -1.57, 0.59, -0.39; 2-pyridyl, 0.88, 2.09, -0.24, 1.65, -0.45; 3-pyridyl, 0.60, 0.57, 0.63, 0.35, 0.04; and 4-pyridyl, 1.18, 1.22, 1.09, 0.92, -0.01.The DSP-NLR method of analysis is explored using electron demand parameters, ε, as determined for the vinylic side chains in para-substituted styrenes.
Side-chain Nucleophilic Reactivity of Five-membered Heterocyclic Rings: Base-catalysed Reactions of Aldehydes with Phenylacetonitrile
Alberghina, Gaetano,Amato, M. Emanuela,Fisichella, Salvatore,Pisano, Danila
, p. 295 - 298 (2007/10/02)
The rates of the sodium methoxide-catalysed condensations of heteroaromatic aldehydes (Ar=C6H5, C6H4CH3-p, C6H4OCH3-p, C6H4Cl-p, 2-thienyl, 2-furyl, pyrrol-2-yl, N-methylpyrrol-2-yl, 1-naphthyl, 3-pyridyl, 4-pyridyl) with phenylacetonitrile are measured i
