Results 121 to 130 of about 1,925 (186)

Multicomponent Synthesis of Dihydropyrimidines and Thiazines

Chemistry – A European Journal, 2006
AbstractA broad range of differently substituted dihydropyrimidines and thiazines can be efficiently prepared by using a four‐component reaction between phosphonates, nitriles, aldehydes, and iso(thio)cyanates. The scope and limitations of this multicomponent reaction are fully described. Variation of all four components has been investigated.
Vugts, D.J., Koningstein, M.M., Schmitz, R.F., de Kanter, F.J.J., Groen, M.B., Orru, R.V.A.   +5 more
openaire   +4 more sources

Some of the next articles are maybe not open access.

Related searches:

Luminescence of Leuco-Thiazine Dyes

Journal of Fluorescence, 2003
Details of the novel luminescence of the leuco forms of the thiazine dyes, methylene blue and thionine, are reported, including their emission maxima, quantum yields and lifetimes of the luminescence. Other work shows that this luminescence is independent of reducing agent type and solution pH and is a common feature of most thiazine dyes.
Andrew Mills, Soo-Keun Lee
exaly   +4 more sources

Synthesis of 1,3-Thiazines by a Three-Component Reaction and Their Transformations Into β-Lactam-Condensed 1,3-Thiazine and 1,4-Thiazepine Derivatives

Phosphorus, Sulfur and Silicon and the Related Elements, 2016
Variously substituted 1,3-thiazines have been prepared by a three-component reaction involving a thioamide, an aldehyde, and an alkene. Two diastereomeric thiazines were transformed by stereoselective Staudinger reaction into the corresponding chloro-β ...
Jean-François Lohier, Vincent Reboul, Mihaela Gulea   +2 more
exaly   +2 more sources

Thiazine, Antibiotic, Bilirubin Adducts

Xenobiotica, 1989
1. Electron charge transfer interactions of some phenothiazine derivatives with aminoglycoside antibiotics, beta-lactams and penicillin-related antibiotics and bilirubin were investigated with alternating current titrations. 2. Neither the beta-lactams nor penicillin-related drugs interacted. 3.
G M, Eckert, F, Gutmann, H, Keyzer
openaire   +2 more sources

1,3-Thiazines

1990
Publisher Summary This chapter discusses the monocyclic thiazines and their functionalized derivatives. The sp 3 -hybridized saturated carbon bearing the extra hydrogen was indicated by a number placed after those for the heteroatoms. Hence, 2H-1,3-thiazine was named 1,3,2-thiazine. The chapter discusses the synthesis of 1,3-thiazines.
Hervé Quiniou, Odette Guilloton
openaire   +1 more source

Synthesis of 4H-thiazines

Chemistry of Heterocyclic Compounds, 2016
Thiazines represent an important class of heterocyclic compounds due to their valuable biological properties. For example, some derivatives of thiazine are cannabinoid receptor agonists, also they can act as an antihypotensive, antitubercular, and antibacterial agents.
Aurelija Urbanaitė, Inga Čikotienė
openaire   +1 more source

Photo-Sensitivity of Thiazine Leucobases

Nature, 1961
DURING the course of experiments designed to investigate the staining of nucleic acid in histological sections, I happened to gather together on one bench a number of solutions of basic dyes reduced to their colourless sulphite leucobase. These included methyl green, basic fuchsin and a series of thiazines, namely, thionin, azure A, B and C, and ...
openaire   +2 more sources

The binding of thiazines by proteins and nucleic acid

Archives of Biochemistry and Biophysics, 1952
Abstract Binding of the red thiazine dyes, phenothiazone and thionol, by plasma albumin, yeast nucleic acid, and thymus nucleoprotein has been observed spectrophotometrically. Binding constants have been evaluated by the equilibrium dialysis method. The results indicate that binding of these compounds is not extensive: relatively few binding sites ...
G M, ALLENBY, H B, COLLIER
openaire   +2 more sources