Values for Hammett pyridine 3-aza and 4-aza replacement constants were obtained by correlation of the amide proton chemical shifts (in DMSO) of some N-(3-pyridyl)-and N-(4-pyridyl)-dichloronicotinamides, benzamides and acetamides with those of their N-(substituted phenyl) amide analogs using standard Hammett a value
For an interdisciplinary approach on different topics of medicinal and analytical chemistry, we appl...
The acidities of 37 amino-substituted heterocyclic compounds have been determined using measurements...
The ^(15)N chemical shifts of ^(13)N -(arylmethylidene)alkanamines, seven N-(arylmethylidene)azanols...
Excellent linear correlations of amide proton chemical shifts (Snh) (in DMSO-d6 ) with Hammett subst...
Excellent correlations of Hammett substituent constants (sigmaR) of a series of N-(R-substituted ary...
A series of nine N-(4-substituted phenyl)-6-chloro-5- fluoronicotinamides exhibited excellent correl...
13 C chemical shifts of the azomethine carbon atom for N-(substituted phenyl)pyridine-4-aldimines, 4...
A series containing ten titled compounds have been synthesised and recorded the IR and NMR spectra. ...
This laboratory experiment, using proton NMR spectroscopy to determine the dissociation constant for...
Second-order rate constants (kN) have been measured spectrophotometrically for nucleophilic substitu...
Rate constants have been determined for the reactions of diazodiphenylmethane (DDM) with 3- and 4-py...
A series of representative diazines and pyridine N‐oxides were subjected to alkylation using several...
A series of representative diazines and pyridine N‐oxides were subjected to alkylation using several...
The ^(15)N chemical shifts of ^(13)N -(arylmethylidene)alkanamines, seven N-(arylmethylidene)azanols...
Behaviour of N-(1-azolecarbonyl)-L-phenylalanine (Azc-Phe-OH, 1a-d) and L-phenylalanine N-carboxy an...
For an interdisciplinary approach on different topics of medicinal and analytical chemistry, we appl...
The acidities of 37 amino-substituted heterocyclic compounds have been determined using measurements...
The ^(15)N chemical shifts of ^(13)N -(arylmethylidene)alkanamines, seven N-(arylmethylidene)azanols...
Excellent linear correlations of amide proton chemical shifts (Snh) (in DMSO-d6 ) with Hammett subst...
Excellent correlations of Hammett substituent constants (sigmaR) of a series of N-(R-substituted ary...
A series of nine N-(4-substituted phenyl)-6-chloro-5- fluoronicotinamides exhibited excellent correl...
13 C chemical shifts of the azomethine carbon atom for N-(substituted phenyl)pyridine-4-aldimines, 4...
A series containing ten titled compounds have been synthesised and recorded the IR and NMR spectra. ...
This laboratory experiment, using proton NMR spectroscopy to determine the dissociation constant for...
Second-order rate constants (kN) have been measured spectrophotometrically for nucleophilic substitu...
Rate constants have been determined for the reactions of diazodiphenylmethane (DDM) with 3- and 4-py...
A series of representative diazines and pyridine N‐oxides were subjected to alkylation using several...
A series of representative diazines and pyridine N‐oxides were subjected to alkylation using several...
The ^(15)N chemical shifts of ^(13)N -(arylmethylidene)alkanamines, seven N-(arylmethylidene)azanols...
Behaviour of N-(1-azolecarbonyl)-L-phenylalanine (Azc-Phe-OH, 1a-d) and L-phenylalanine N-carboxy an...
For an interdisciplinary approach on different topics of medicinal and analytical chemistry, we appl...
The acidities of 37 amino-substituted heterocyclic compounds have been determined using measurements...
The ^(15)N chemical shifts of ^(13)N -(arylmethylidene)alkanamines, seven N-(arylmethylidene)azanols...