Results 201 to 210 of about 5,057,050 (249)
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Immunobiology of Picolinic Acid
1996Exposure of various cell types to IFN results in increased enzymatic activities leading to the breakdown of tryptophan and evidence exists to suggest that the catabolism of tryptophan may be connected to the biological effects of interferon (Carlin et al., 1989.
G. Melillo +3 more
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A Picolinic Acid Derivative: A Plant Growth Regulator
Science, 19634-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 +3 more
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New Derivatives of Picolinic Acid and Nicotinic Acid with Anticonvulsant Activity
Protein & Peptide Letters, 2005Previously 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 +3 more
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Picolinic Acid in Acrodermatitis Enteropathica
Journal of Pediatric Gastroenterology and Nutrition, 1984SummaryThree 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 +2 more
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Reductions of picolinic acid and dipicolinic acid at mercury cathodes
Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 1975Summary 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
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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 +3 more
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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 +3 more
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Journal of Organometallic Chemistry, 1991
Two types of complexes of diorganotin picolinates (i) R2Sn(Pic)2 [2:1] and (ii) [R2SnPic]2O [1:1] and of diorganotinpicolinate N-oxides (i) R2Sn(PicO)2 [2:1] and (ii) [R2SnPicO]2O [1:1] (R = CH3, n-C4H9, n-C8H17, C6H5CH2) have been prepared by reacting picolinic acid and picolinic acid N-oxide with diorganotin oxide in 2:1 and 1:1 ligand:metal molar ...
N.S. Boparoy, G.K. Sandhu
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Two types of complexes of diorganotin picolinates (i) R2Sn(Pic)2 [2:1] and (ii) [R2SnPic]2O [1:1] and of diorganotinpicolinate N-oxides (i) R2Sn(PicO)2 [2:1] and (ii) [R2SnPicO]2O [1:1] (R = CH3, n-C4H9, n-C8H17, C6H5CH2) have been prepared by reacting picolinic acid and picolinic acid N-oxide with diorganotin oxide in 2:1 and 1:1 ligand:metal molar ...
N.S. Boparoy, G.K. Sandhu
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Mechanism of copper electrodeposition in the presence of picolinic acid
Electrochimica Acta, 2006Abstract The influence of picolinic acid (PA) on copper deposition from a slightly acidic sodium sulphate electrolyte has been studied over a wide range of concentration and pH by cyclic voltammetry. The mechanism by which the copper electrodeposition process in the presence of PA takes place, depends on the chemistry and electrochemistry ...
Manuel Lopez Teijelo +2 more
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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 +6 more
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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 +6 more
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α-Picolinic acid as a colorimetric reagent
Analytica Chimica Acta, 1953Abstract Aluminium, can easily be separated from solutions containing iron or chromium at an optimum pH of 5.8 to 6.85 for iron and at 6.25 to 7.05 for chromium, in the presence of an excess of α-picolinic acid, which acts as a masking agent for both.
Buddhadev Sen, Anil Kumar Majumdar
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