3430-17-9Relevant articles and documents
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Boyer,Reinisch
, p. 2218 (1960)
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Preparation and characterization of methyl substituted 2,2′-dipyridyl diselenides and -ditellurides: X-ray structure of 6,6′-dimethyl-2,2′-dipyridyl diselenide
Bhasin,Venugopalan,Singh
, p. 2579 - 2587 (2002)
A convenient method for the preparation of various methyl substituted 2,2′-dipyridyl diselenides and -ditellurides by the aerial oxidation of lithium 2-pyridylselenolate/tellurolate, prepared from the lithium-halogen exchange between n-butyllithium and 2-bromo methyl substituted pyridines is reported. All the compounds prepared are new and have been characterized by elemental analysis, IR, 1H, 13C, 11Se NMR, and mass spectral studies. Crystal structure of 6,6′-dimethyl-2,2′-dipyridyl diselenide has been determined.
Photophysical behavior of a novel 4-aza-indole derivative in different solvents: reverse solvatochromism
Bozkurt, Ebru,Dogan, Sengul Dilem
, p. 863 - 872 (2019)
The photophysical properties of a new 4-aza-indole derivative [ethyl 1-((2-(2-ethoxy-2-oxoethyl)pyridin-3-yl)carbamoyl)-2-hydroxy-1H-pyrrolo-[3,2-b]pyridine-3-carboxylate, 12] were determined in different solvents. Compound 12 exhibited an absorbance peak at 340–360?nm with high fluorescence intensity in the wavelength range from 405 to 417?nm in all solvents except N,N-dimethylformamide (DMF). Compound 12 exhibited reverse solvatochromism behavior depending on the solvent polarity. Furthermore, compound 12 showed very high quantum yield in all solvents independent of their polarity. The results suggest that this novel dye could be used for many applications, e.g., as a labeling agent and in bio- or analytical sensors and/or optoelectronic devices.
Transition-metal-free decarboxylative halogenation of 2-picolinic acids with dihalomethane under oxygen conditions
Zhang, Xitao,Feng, Xiujuan,Zhang, Haixia,Yamamoto, Yoshinori,Bao, Ming
supporting information, p. 5565 - 5570 (2019/10/22)
A convenient and efficient method for the synthesis of 2-halogen-substituted pyridines is described. The decarboxylative halogenation of 2-picolinic acids with dihalomethane proceeded smoothly via N-chlorocarbene intermediates to afford 2-halogen-substituted pyridines in satisfactory to excellent yields under transition-metal-free conditions. This new type of decarboxylative halogenation is operationally simple and exhibits high functional-group tolerance.