Results 1 to 10 of about 5,045,142 (209)

A Simple Method for Synthesis of Active Esters of Isonicotinic and Picolinic Acids [PDF]

open access: goldMolecules, 2001
A method for preparation of the p-nitrophenyl-, N-hydroxysuccinimidyl- and pentafluorophenyl esters of isonicotinic and picolinic acids from the corresponding acids is reported.
Jørn B. Christensen
doaj   +3 more sources

Picolinic and Isonicotinic Acids: A Fourier Transform Microwave Spectroscopy Study [PDF]

open access: yesThe Journal of Physical Chemistry A, 2014
Producción CientíficaThe rotational spectra of laser ablated picolinic and isonicotinic acids have been studied using broadband chirped pulse (CP-FTMW) and narrowband molecular beam (MB-FTMW) Fourier transform microwave spectroscopies.
Alonso Hernández, José Luis   +4 more
core   +7 more sources

The effects of solvents and structure on the electronic absorption spectra of the isomeric pyridine carboxylic acid N-oxides [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2013
The ultraviolet absorption spectra of the carboxyl group of three isomeric pyridine carboxylic acids N-oxides (picolinic acid N-oxide, nicotinic acid N-oxide and isonicotinic acid N-oxide) were determined in fourteen solvents in the wavelength range ...
Drmanić Saša Ž.   +4 more
doaj   +4 more sources

Crystal structure of picolinic acid hydrazide, C6H7N3O [PDF]

open access: goldZeitschrift für Kristallographie - New Crystal Structures, 2006
Abstract C6H7N3O, monoclinic, C12/c1 (no. 15), a = 19.222(2) Å, b = 3.8987(4) Å, c = 18.115(2) Å, β = 107.095(2)°, V = 1297.6 Å3, Z = 8, Rgt(F) = 0.038, wRref(F2) = 0.122, T = 293 K.
Muhammad Zareef   +5 more
openalex   +5 more sources

The Physiological Action of Picolinic Acid in the Human Brain [PDF]

open access: goldInternational Journal of Tryptophan Research, 2009
Picolinic Acid is an endogenous metabolite of L-tryptophan (TRP) that has been reported to possess a wide range of neuroprotective, immunological, and anti-proliferative affects within the body. However the salient physiological function of this molecule is yet to be established.
Ross Grant   +2 more
openalex   +4 more sources

Study on Design, Synthesis and Herbicidal Activity of Novel 4-Amino-6-(5-Aryl-Substituted-1-Pyrazolyl)-3-Chloro-5-Fluoro-2-Picolinic Acids

open access: goldMolecules
6-Aryl-2-picolinic acid herbicides are an important subclass of auxin herbicides, characterized by their good absorption and conductivity, broad weed control spectrum, and excellent herbicidal activity against some resistant weeds.
Huiting Li   +8 more
doaj   +2 more sources

Muscle relaxant activity of α-picolinic acid

open access: goldJapanese Journal of Pharmacology, 1989
Nobuyoshi Iwata   +2 more
openalex   +3 more sources

Investigations of the reactivity of pyridine carboxylic acids with diazodiphenylmethane in protic and aprotic solvents: Part II: Pyridine mono-carboxylic acid N-oxides [PDF]

open access: yesJournal of the Serbian Chemical Society, 2006
The rate constants for the reaction of three isomeric pyridine mono-carbocylic acid N-oxides with diazodiphenylmethane were determined at 30 ºC in thirty two protic and aprotic solvents by the well known UV spectrophotometric method.
Drmanić Saša Ž.   +3 more
doaj   +3 more sources

Solubility and Crystallization Studies of Picolinic Acid

open access: yesCrystals, 2023
Solubility and crystallization studies of a monocarboxylic derivative of pyridine, picolinic acid (2-pyridinecarboxylic acid), were undertaken as a need for new data in the literature was identified. Moreover, comparative studies of structurally related small molecules, such as these pyridinecarboxylic acid isomers (picolinic acid (PA), nicotinic acid (
Diogo S. Baptista   +2 more
openaire   +2 more sources

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