Results 221 to 230 of about 5,057,148 (287)

Microbial oxidation of kynurenic, xanthurenic and picolinic acids

Biochimica et Biophysica Acta, 1963
Abstract 1. 1. Resulta of a study of the degradation of kynurenic acid by an Aerococcus are in agreement with a reaction sequence proposed for Pseudomonas by other workers. This sequence includes Compounds I and II below. 2. 2. Partial inhibition of oxidation of kynurenic acid by cell suspensions caused an accumulation of pyruvate with ...
S. Dagley, Patricia A. Johnson
openaire   +3 more sources

A Picolinic Acid Derivative: A Plant Growth Regulator

Science, 1963
4-Amino-3,5,6-trichloropicolinic acid is more toxic to many broad-leaved plants than 2,4-dichlorophenoxyacetic acid and 2,4,5-trichlorophenoxyacetic acid. It is comparable in absorption by foliage, in translocation, and in soil-leaching characteristics; in soil, however, it retains its activity for a longer time.
Carl T. Redemann, John W. Hamaker, Howard Johnston, Robert T Martin   +3 more
openaire   +2 more sources

Speciation studies of binary and ternary complexes formed with oxidovanadium(IV) ion picolinic acid and some amino acids

Physics and chemistry of liquids (Print), 2020
In the present work the chemical speciation of ternary complexes systems formed by VO2+ ion with picolinic acid and the amino acids = α-alanine (HαAla), glycine (HGly), serine (HSer), threonine (HThr), aspartic acid (H2Asp), glutamic acid (H2Glu ...
Joel De Abreu, Edgar Del Carpio, Waleska Madden, G. Lubes, M. L. Araujo, V. Lubes, Lino Hernández   +6 more
semanticscholar   +1 more source

A cocrystal of L-ascorbic acid with picolinic acid: the role of O-H...O, N-H...O and C-H...O hydrogen bonds and L-ascorbic acid conformation in structure stabilization.

Acta Crystallographica. Section B: Structural Science, Crystal Engineering and Materials, 2020
A new 1:1 cocrystal (L-Asc-Pic) of L-ascorbic acid (vitamin C) with picolinic acid was prepared as a powder and as single crystals. The crystal structure was solved and refined from single-crystal X-ray diffraction (SCXRD) data collected at 293 (2) and ...
D. N. Evtushenko, S. Arkhipov, A. Fateev, T. Izaak, L. Egorova, N. Skorik, O. Vodyankina, E. Boldyreva   +7 more
semanticscholar   +1 more source

New Derivatives of Picolinic Acid and Nicotinic Acid with Anticonvulsant Activity

Protein & Peptide Letters, 2005
Previously obtained Pic-BZA is a potent anticonvulsant with low neurotoxicity, but its half-time of action is only about 15 min. In search for equally effective anticonvulsants but with a longer time of action fourteen Pic-BZA analogs were obtained.
Ryszard Paruszewski, Grazyna Rostafinska-Suchar, Marzanna Strupinska, James P. Stables   +3 more
openaire   +3 more sources

Investigation into the Synthesis, Bioactivity, and Mechanism of Action of the Novel 6-Pyrazolyl-2-picolinic Acid as a Herbicide.

Journal of Agricultural and Food Chemistry
A series of new 4-amino-3,5-dicholo-6-(5-aryl-substituted-1H-pyrazol-1-yl)-2-picolinic acid compounds were designed and prepared to discover herbicidal molecules.
Qing Liu, Huiting Li, Rongchuan Shi, Wei Wei, Xiao Yuan, Yi-Ming Cao, Shangzhong Liu   +6 more
semanticscholar   +1 more source

Picolinic Acid in Acrodermatitis Enteropathica

Journal of Pediatric Gastroenterology and Nutrition, 1984
SummaryThree children with acrodermatitis enteropathica (AE) were treated with oral zinc dipicolinate (zinc‐PA). The daily dose of zinc required to prevent exacerbations, when administered as the dipicolinate complex, was one‐third the minimum amount of zinc required as the sulfate salt. The concentration of picolinic acid in the plasma of asymptomatic
Ingeborg Krieger, Gary W. Evans, Ralph Cash   +2 more
openaire   +3 more sources

Reductions of picolinic acid and dipicolinic acid at mercury cathodes

Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1975
Summary Picolinic acid and dipicolinic acid have been successfully reduced to the corresponding alcohols by controlled potential electrolysis at mercury cathodes in slightly acidic aqueous buffer solutions.
O.R. Brown, J.A. Harrison, K.S. Sastry
openaire   +2 more sources

Studies on the conditions of synthesis of picolinic acid by heterogeneous catalytic oxidation of 2-picoline

Catalysis Letters, 1998
Heterogeneous oxidation of 2-picoline over binary P–Ti, Sb–Ti, P–Sb, and V–Ti oxide catalysts was studied over the temperature range of 200–300°C. The vanadium–titanium catalysts based on titanium dioxide (anatase) were found to be the most selective for picolinic acid.
D. E. Babushkin, Galina A. Zenkovets, E. M. Al'kaeva, T. V. Andrushkevich   +3 more
openaire   +2 more sources

Binary and ternary nickel (II) complexes with picolinic acid and several amino acids

, 2020
In this work, we present the results from a chemical speciation study of binary and ternary complexes formed by Ni(II) ion with picolinic acid and the amino acids = Arginine (HArg), Tryptophan (HTrp), Asparagine (HAsn), Glutamine (HGln), Lysine (HLys ...
A. Paz, I. Caceres, Y. Fakhri, Y. Henríquez, M. L. Araujo, V. Lubes, Lino Hernández   +6 more
semanticscholar   +1 more source