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Formation of oxazine dye by photochemical reaction of N-acyl oxazine derivatives
Journal of Photochemistry and Photobiology A: Chemistry, 2007The synthesis and photochemical reaction mechanism of N-benzoyl oxazine derivatives have been investigated. The synthesized materials were found to be photosensitive and capable of generating oxazine dye upon light irradiation. The initial reactions were found to include homolytic bond cleavage between the oxazine nitrogen and benzoyl carbon atoms ...
Masaharu Akiba +2 more
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Photochromic Oxazines with Extended Conjugation
European Journal of Organic Chemistry, 2009AbstractWe synthesized four compounds with indole and benzooxazine fragments fused in their molecular skeleton and differing in the substituent in the para position, relative to the oxygen atom, of their phenoxy chromophore. This particular substituent extends the conjugation of the phenoxy chromophore and shifts its absorption bathochromically by up ...
Petersen MA +4 more
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Tetrahedron, 1974
Abstract The conformational equilibria of methyl groups on the four carbon atoms of the tetrahydro-1,2-oxazine ring are investigated. Correlation of these equilibria with the 1,3-transannular distances in this system shows that oxygen is a “softer” atom than nitrogen.
F. G. Riddell, D.A.R. Williams
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Abstract The conformational equilibria of methyl groups on the four carbon atoms of the tetrahydro-1,2-oxazine ring are investigated. Correlation of these equilibria with the 1,3-transannular distances in this system shows that oxygen is a “softer” atom than nitrogen.
F. G. Riddell, D.A.R. Williams
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Identification of Neutrophils with an Oxazine Dye
American Journal of Clinical Pathology, 1987Used in an alkaline-buffered solution on fixed smears of bone marrow or peripheral blood, the oxazine dye CI basic blue 141 preferentially stained neutrophil granules a bright crimson red. In neutrophils, these granules were numerous, whereas in bands, only a few granules were seen.
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Australian Journal of Chemistry, 2017
A series of functionalized sesamol–oxazine and quinoline–oxazine hybrids have been synthesized via one-pot reaction of sesamol/6-hydroxyquinoline, aromatic amines, and methanal. The structures of all the novel compounds were confirmed by spectral data. The structures of the synthesized hybrids were also confirmed by X-ray crystallographic studies. Mild
Pooja Saluja +2 more
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A series of functionalized sesamol–oxazine and quinoline–oxazine hybrids have been synthesized via one-pot reaction of sesamol/6-hydroxyquinoline, aromatic amines, and methanal. The structures of all the novel compounds were confirmed by spectral data. The structures of the synthesized hybrids were also confirmed by X-ray crystallographic studies. Mild
Pooja Saluja +2 more
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New photochromic 2H-1.4-oxazines and spiro-2H-1.4-oxazines
Tetrahedron Letters, 1981Abstract The synthesis and the photochemical behaviour of 4 new 2H-1.4-oxazines and 3 new spiro-2H-1.4-oxazines is described.
Roland Paetzold +2 more
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Amplification of the Coloration Efficiency of Photochromic Oxazines
Advanced Materials, 2007In fact, their photoinduced transformations can beexploited to switch the color of liquid solutions, rigid polymermatrices or even crystals with optical inputs. Furthermore,these photoinduced processes are generally accompanied bysignificant structural modifications at the molecular level,which can translate into pronounced changes in the ...
Tomasulo M, SORTINO, Salvatore, Raymo FM
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A NEW SYNTHESIS OF AZOLO-OXAZINES
Synthetic Communications, 1982(1982). A NEW SYNTHESIS OF AZOLO-OXAZINES. Synthetic Communications: Vol. 12, No. 5, pp. 381-393.
B. Lupo, G. Tarrago
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Tuning the Activation Wavelength of Photochromic Oxazines
ChemPhysChem, 2016AbstractThe activation wavelength of a photochromic oxazine can be shifted bathochromically with the introduction of a methoxy substituent on the chromophore responsible for initiating the photochemical transformation. This structural modification permits switching under mild illumination conditions, enhances the photoisomerization quantum yield and ...
Santi Nonell +6 more
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ChemInform Abstract: Basic Oxazinic Dyes.
ChemInform, 1991AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
I. Sebe, I. Alexandrescu
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