Results 21 to 30 of about 2,922 (181)

10-(Prop-2-yn-1-yl)-2,7-diazaphenothiazineAzinyl sulfides. Part CXXVII.

open access: yesActa Crystallographica Section E, 2012
In the title molecule [systematic name: 10-(prop-2-yn-1-yl)dipyrido[3,4-b:3′,4′-e][1,4]thiazine], C13H9N3S, the dihedral angle between the two pyridine rings is 146.33 (7)° and the angle between two halves of the ...
Beata Morak-Młodawska   +3 more
doaj   +1 more source

DESIGN, SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF SOME NEW 2,4-DIAMINO PYRIMIDOTHIAZINE DERIVATIVES [PDF]

open access: yesAl-Azhar Journal of Pharmaceutical Sciences, 2015
The thermal condensation of 2,4-diamino 5-bromo-6-hydroxypyrimidine with 2-amino-3-mercaptopropylaniline derivatives (6)    and 2-amino-3-mercaptopropymethyllaniline derivatives (9) resulted in 2,4-diamino-6-substituted anilinomethlyl 6,7-dihydro-8H ...
Helmy Sakr
doaj   +1 more source

Crystal structures of rac-2,3-diphenyl-2,3,5,6-tetrahydro-4H-1,3-thiazine-1,1,4-trione and N-[(2S,5R)-1,1,4-trioxo-2,3-diphenyl-1,3-thiazinan-5-yl]acetamide

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2023
The syntheses and crystal structures of two thiazinone compounds, namely, rac-2,3-diphenyl-2,3,5,6-tetrahydro-4H-1,3-thiazine-1,1,4-trione, C16H15NO3S, in its racemic form, and N-[(2S,5R)-1,1,4-trioxo-2,3-diphenyl-1,3-thiazinan-5-yl]acetamide ...
Hemant P. Yennawar   +4 more
doaj   +1 more source

Z‐Scheme BiOCl‐Based Photocatalysts: Recent Advances in Designing, Structural Engineering, Formation Mechanisms, and High Performance Photocatalytic Environmental Remediation

open access: yesEcoEnergy, EarlyView.
This review deals with the recent advancements in design and engineering of BiOCl‐based Z‐scheme photocatalysts with emphasis on tailoring of structural, optoelectronic properties and heterojunction assembly for environmental applications including photodegradation of industrial organic waste, pharmaceuticals, pesticides, herbicides, toxic heavy metals,
Sakshi Sharma   +7 more
wiley   +1 more source

Color‐Pure Organic Luminophores: Characteristics, Definitions, Physical Basis and Fundamental Design Principles

open access: yesAngewandte Chemie, Volume 138, Issue 30, 20 July 2026.
Color‐pure all‐organic emitters, i.e., with narrow spectral characteristics, are intensively studied for high‐definition organic LEDs and multi‐color bioimaging. In order to guide targeted materials design, this educative review discusses spectral characteristics, proper definitions and units, and the physical basis of spectral broadening, to distill ...
Johannes Gierschner   +6 more
wiley   +2 more sources

Stereoselective Construction of Benzo‐Fused Tetrahydropyrrole Thiazines From Saccharin

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Saccharin was used as a template to construct a series of 10a‐substituted, benzo‐fused, pyrrolo thiazinone dioxides. Thereafter, diastereo‐divergent 10‐keto reduction gave either diastereomeric alcohol in a process that did not rely on the substituent at 10a's identity.
Seanán Doyle   +8 more
wiley   +1 more source

6-Bromo-4-(2-cyclohexylidenehydrazin-1-ylidene)-1-methyl-2,2-dioxo-3,4-dihydro-1H-2λ6,1-benzothiazine

open access: yesActa Crystallographica Section E, 2012
The asymmetric unit of the title compound, C15H18BrN3O2S, contains two independent molecules in both of which the (thiazine)C=N—N double bond exhibits an E conformation.
Muhammad Shafiq   +5 more
doaj   +1 more source

Retro‐Hetero‐Michael Addition Strategies in Organic Synthesis

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
In this review, synthetic approaches to carbo‐ and heterocyclic compounds, including natural products, published in the last 15 years (2011–2025) which have either relied upon or included a retro‐hetero‐Michael addition step at any stage are discussed.
Dina Scarpi, Ernesto G. Occhiato
wiley   +1 more source

Synthesis and crystal structures of two racemic 2-heteroaryl-3-phenyl-2,3-dihydro-4H-pyrido[3,2-e][1,3]thiazin-4-ones

open access: yesActa Crystallographica Section E: Crystallographic Communications
3-Phenyl-2-(thiophen-3-yl)-2,3-dihydro-4H-pyrido[3,2-e][1,3]thiazin-4-one (C17H12N2OS2, 1) and 2-(1H-indol-3-yl)-3-phenyl-2,3-dihydro-4H-pyrido[3,2-e][1,3]thiazin-4-one 0.438-hydrate (C21H15N3OS·0.438H2O, 2) crystallize in space groups P21/n and C2/c ...
Hemant P. Yennawar   +6 more
doaj   +1 more source

Methyl 4-hydroxy-2-isopropyl-1,1-dioxo-2H-1,2-benzothiazine-3-carboxylate

open access: yesActa Crystallographica Section E, 2011
In the crystal structure of the title molecule, C13H15NO5S, the S and N atoms of the thiazine ring exihibit the maximum deviations from the least-squares plane of 0.3008 (6) and 0.3280 (7) Å, respectively.
Muhammad Nadeem Arshad   +4 more
doaj   +1 more source

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