6526-38-1Relevant academic research and scientific papers
Synthese von Betenamin und von Betalain-Modellsubstanzen
Parikh, Indu,Hilpert, Hans,Hermann, Kurt,Dreiding, Andre S.
, p. 1588 - 1596 (1986)
For comparisons of color, spectroscopic properties, pKa values, and stabilities, a number of model substances containing the 1,7-diazaheptamethinium chromophore 8 of the yellow and red betalaine plant pigments were prepared by the thermal or ph
Tuning of charge-transfer absorption and molecular quadratic non-linear optical properties in ruthenium(II) ammine complexes
Coe, Benjamin J.,Harris, James A.,Asselberghs, Inge,Persoons, Andre,Jeffery, John C.,Rees, Leigh H.,Gelbrich, Thomas,Hursthouse, Michael B.
, p. 3617 - 3625 (1999)
The ligands N-methyl-2,7-diazapyrenium (Medap+), N-(2-pyrimidyl)-4,4′-bipyridinium (PymQ+), N-methyl-4-[trans-2-(4-pyridyl)ethenyl]pyridinium (Mebpe+) and N-phenyl-4-[trans-2-(4-pyridyl)ethenyl]pyridinium (Phbpe+/sup
Synthesis and properties of merocyanine dyes derived from N-aryl-substituted pyridinium salts and cyanoacetic acids
Borisova,Zubarev,Rodinovskaya,Shestopalov
, p. 1868 - 1872 (2018)
A series of merocyanine dyes were synthesized by two-component condensation of N-aryl-4-picolinium salts and cyanoacetic acid derivatives. Physicochemical properties of the synthesized dyes were studied.
N-Aryl stilbazolium dyes as sensitizers for solar cells
Blackburn, Octavia A.,Coe, Benjamin J.,Hahn, Valentine,Helliwell, Madeleine,Raftery, James,Ta, Yien T.,Peter, Laurence M.,Wang, Hongxia,Anta, Juan A.,Guillén, Elena
experimental part, p. 766 - 777 (2012/02/05)
Eight new N-arylstilbazolium chromophores with electron donating -NR 2 (R = Me or Ph) substituents have been synthesized via Knoevenagel condensations and isolated as their PF6- salts. These compounds have been characteriz
Synthesis of δ-tributylstannyl-α,βγ, δ-unsaturated aldehydes from pyridines
Michels, Theo D.,Rhee, Jong Uk,Vanderwal, Christopher D.
supporting information; experimental part, p. 4787 - 4790 (2009/05/07)
(Equation Presented) Zincke aldehydes, which are readily available from the ring-opening reaction of pyridinium salts, are easily converted into δ-tributylstannyl-α,β,γ,δ-unsaturated aldehydes (stannyldienals) by the action of tributylstannyllithium. This reaction appears to proceed via 1,6-stannyllithium addition/elimination of lithium dialkylamide. Several stannyldienals of significant utility for the synthesis of polyene natural products have been made by this route, which proceeds in modest yields, but is successful on multigram scale using inexpensive reagents. Simple stannylenals and stannylenones are similarly available from the corresponding vinylogous amides.
The Zincke's reaction: A new alternative for the preparation of 1-[2- (3-indol)ethyl]-alkylpyridinium chloride derivatives
Gnecco, Dino,Juarez, Jorge,Galindo, Alberto,Marazano, Christian,Enriquez, Raul G.
, p. 281 - 287 (2007/10/03)
The Zincke's salts 3 (a-f) were prepared and used for the synthesis of 1-[(2-(3-indol)-ethyl]alkylpyridinium chloride derivatives 5 (a-f) in high yields.
N.c.a. 11C-labelling of benzenoid compounds in ring positions: Synthesis of 3-nitro-[3-11C]toluene and 4-nitro-[4-11C]toluene and their corresponding toluidines
Maeding,Steinbach
, p. 647 - 656 (2007/10/03)
The paper describes the syntheses of n.c.a. 3-nitro-[3-11C]toluene (3a) and 4-nitro-[4-11C]toluene (3b) by reaction of nitro-[11C]methane (1) with 5-dimethylamino-2(or 3)-methyl-penta-2,4-dienylidene- dimethylammonium tetr
Synthesis and pharmacological evaluation of some N- [pyridyl(phenyl)carbonylamino]methyl-1,2,3,6-tetrahydropyridines
Redda,Rao,Heiman,Melles
, p. 463 - 466 (2007/10/02)
Reaction of some plcolines 5 with 1-chloro-2,4-dinitrobenzene (6) in acetone furnished methyl-substituted 2,4-dinitrophenylpyridinium chlorides 7. Further reaction with phenyl(pyridyl)carbonyl hydrazides 8 at room temperature furnished isolable 2,4-dinitr
