Results 41 to 50 of about 1,143 (191)

Synthesis and Antimicrobial Activity of 1,2-Benzothiazine Derivatives

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   +1 more source

Synthesis of Sulfur Heterocycles by Palladium‐Catalyzed Cyclization

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 14, 15 April 2026.
In spite of the well‐known palladium thiophilicity, sulfur‐containing acyclic substrates may efficiently undergo several different kinds of palladium‐catalyzed cyclization processes leading to highly important sulfur heterocycles in one synthetic step. Advances in this challenging and stimulating field of research are presented in this review.
Bartolo Gabriele
wiley   +1 more source

Catalyst-Free Chemoselective Synthesis of 3,4-Dihydroquinazoline-2-thiones and 2‑Imino[1,3]benzothiazines

open access: yes, 2016
A solvent-controlled catalyst-free chemoselective reaction was developed. Both 3,4-dihydroquinazoline-2-thiones and 2-imino­[1,3]­benzothiazines could be efficiently constructed by the reaction of 2-amino chalcones with isothiocyanates via two different ...
Xiu-Qin Hu (1566076)   +4 more
core   +3 more sources

New Insight into the SAR of Pyrimido [4,5-b][1,4] Benzothiazines as 15-lipoxygenase Inhibitors [PDF]

open access: yesIranian Journal of Basic Medical Sciences, 2013
Objective(s): Recently we reported that the soybean 15-lipoxygenase (SLO) inhibitory activity of pyrimido[4,5-b][l,4]benzothiazines largely depends on the orientation of sulfur atom of thiazine core towards FeIII-OH in the active site pocket of the ...
Nona Pooryaghoobi   +4 more
doaj  

Methyl 2-methyl-4-(oxiran-2-ylmethoxy)-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide

open access: yesActa Crystallographica Section E, 2010
In the title compound, C14H15NO6S, the thiazine ring adopts a distorted half-chair conformation. The structure displays several cooperative weak intermolecular C—H...O hydrogen-bonding interactions, giving rise to a two-dimensional sheet ...
Matloob Ahmad   +4 more
doaj   +1 more source

Photo‐Rewritable Ambipolar Organic Electrochemical Synapses with Bidirectional Optical Plasticity for Adaptive Vision in Aqueous Environments

open access: yesAdvanced Materials, Volume 38, Issue 24, 27 April 2026.
Photo‐rewritable ambipolar organic synapses operating in aqueous environments at low voltage (≤0.4 V) demonstrate bidirectional optical plasticity through photon‐modulated electrochemical doping. The bulk heterojunction device enables both excitatory and inhibitory responses with extended retention time (>130 min).
Xiaoqian Su   +14 more
wiley   +1 more source

Stereoselective One-Pot Synthesis of Substituted (4Z)-2-Alkyl-4-benzylidene- 4H-1,3-benzothiazines†

open access: yes, 2016
Substituted (4Z)-4-benzylidene-2-methyl-4H-1,3-benzothiazines (1) and (4Z)-2-ethyl-4-benzylidene-4H-1,3-benzothiazines (2) were synthesized by direct stereoselective reactions of S-phenyl ethanethioate or S-phenyl propanethioate with substituted benzyl ...
Rosario Torres (481609)   +4 more
core   +1 more source

Synthesis of 2,2-Disubstituted Dihydro-1,4-benzothiazines from Morita–Baylis–Hillman Ketones by an Oxidative Cyclization

open access: yes, 2022
An oxidative cyclization ensued upon interaction of Morita–Baylis–Hillman (MBH) ketones with 2-aminothiophenol in the presence of Cs2CO3, resulting in the formation of new 2,2-disubstituted dihydro-1,4-benzothiazines. The reaction features an aza-Michael
Rajkiran Kumari (7471355)   +5 more
core   +1 more source

Ionic–Bionic Interfaces: Advancing Iontronic Strategies for Bioelectronic Sensing and Therapy

open access: yesAdvanced Science, Volume 13, Issue 16, 18 March 2026.
Ionic–bionic interfaces for bioelectronics leverage ions as multifunctional mediators that combine mechanical compliance, ionic and electronic functionalities, and therapeutic effects. These systems offer real‐time biosignal transduction, effective wound dressing, responsive drug delivery, and seamless interaction between soft tissues and electronic ...
Yun Goo Ro   +6 more
wiley   +1 more source

New Synthesis of Benzothiazines and Benzoisothiazoles Containing a Sulfoximine Functional Group

open access: yes, 2016
The reaction of S-2-bromophenyl-S-methylsulfoximine with terminal alkynes in the presence of a palladium catalyst resulted in the formation of both 1,2-benzothiazines and 1,2-benzoisothiazoles.
Dong Reyoul Lee (2684962)   +10 more
core   +2 more sources

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