Results 11 to 20 of about 1,407 (189)

Synthesis and Antimicrobial Activity of 1,2-Benzothiazine Derivatives [PDF]

open access: yesMolecules, 2016
A number of 1,2-benzothiazines have been synthesized in a three-step process. Nine chalcones 1–9 bearing methyl, fluoro, chloro and bromo substituents were chlorosulfonated with chlorosulfonic acid to generate the chalcone sulfonyl chlorides 10–18. These
Chandani Patel   +6 more
doaj   +9 more sources

Efficient synthesis of benzothiazine and acrylamide compounds [PDF]

open access: yesQuímica Nova, 2010
This article describes the synthesis of the new (2Z)-2-(4-methoxybenzylidene)-6-nitro-4H -benzo[1,4]thiazin-3-one, (2Z)-2-(4-methoxybenzylidene)-4-methyl-6-nitro-4H-benzo[1,4]thiazin-3-one, (2Z)-6-amino-2-(4-methoxybenzylidene)-4H -benzo[1,4]thiazin-3 ...
Ana Maria Alves Souza   +8 more
doaj   +4 more sources

Evaluation of 1,2-Benzothiazine 1,1-Dioxide Derivatives In Vitro Activity towards Clinical-Relevant Microorganisms and Fibroblasts [PDF]

open access: yesMolecules, 2020
The global concern related with growing number of bacterial pathogens, resistant to numerous antibiotics, prone scientific environment to search for new antimicrobials.
Ruth K. Dudek-Wicher   +5 more
doaj   +2 more sources

Potential anti-amoebic effects of synthetic 1,4-benzothiazine derivatives against Acanthamoeba castellanii [PDF]

open access: yesHeliyon
A rare but lethal central nervous system disease known as granulomatous amoebic encephalitis (GAE) and potentially blinding Acanthamoeba keratitis are diseases caused by free-living Acanthamoeba.
Alishba   +7 more
doaj   +2 more sources

Methyl 4-ethoxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide [PDF]

open access: yesActa Crystallographica Section E, 2008
In the crystal structure of the title compound, C13H15NO5S, the molecules exhibit weak S=O...H—C and C=O...H—C intermolecular interactions and arrange themselves into centrosymmetric dimers by means of π–π interactions (ring ...
Muhammad Zia-ur-Rehman   +4 more
doaj   +3 more sources

N-(3,4-Dimethylphenyl)-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide [PDF]

open access: yesActa Crystallographica Section E, 2009
1,2-Benzothiazines similar to the title compound, C18H18N2O4S, are well known in the literature for their biological activities and are used as medicines in the treatment of inflammation and rheumatoid arthritis. The thiazine ring adopts a distorted half-
Waseeq Ahmad Siddiqui   +4 more
doaj   +2 more sources

Enantioselective reduction of sulfur-containing cyclic imines through biocatalysis. [PDF]

open access: yesNat Commun, 2018
Zumbrägel N, Merten C, Huber SM, Gröger H. Enantioselective reduction of sulfur-containing cyclic imines through biocatalysis. Nature Communications.
Zumbrägel N   +3 more
europepmc   +3 more sources

Heterocyclic Electrochemistry: Renewable Electricity in the Construction of Heterocycles. [PDF]

open access: yesACS Omega, 2023
Numerous applications in the realm of biological exploration and drug synthesis can be found in heterocyclic chemistry, which is a vast subject. Many efforts have been developed to further improve the reaction conditions to access this interesting family
Aslam S   +5 more
europepmc   +4 more sources

Synthesis of Anthraquinone Mono- and Diboron Complexes with Near-Infrared Panchromatic Absorption. [PDF]

open access: yesChemistry
Anthraquinone boron complexes bearing β‐iminoenolate ligand(s) exhibit strongly substituent‐dependent absorption properties. Unsubstituted monoboron and diboron complexes show sharp UV–Vis–NIR absorption spectra resulting from increased molecular rigidity induced by boron coordination.
Kubota Y   +4 more
europepmc   +2 more sources

Gold-Catalyzed 1,3-Thiazine Formation and Uncommon Tautomer Isolation. [PDF]

open access: yesJ Org Chem, 2022
This work represents the first example of a gold-catalyzed formation of 1, 3-thiazine/1, 3-thiazinane by means of a catalytic approach and further uncommon isolation of the two tautomers.
Canudo-Barreras G   +3 more
europepmc   +3 more sources

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