Results 11 to 20 of about 1,134 (75)

The Photochemical Mediated Ring Contraction of 4H-1,2,6-Thiadiazines To Afford 1,2,5-Thiadiazol-3(2H)-one 1-Oxides

, 2023
1,2,6-Thiadiazines treated with visible light and 3O2 under ambient conditions are converted into difficult-to-access 1,2,5-thiadiazole 1-oxides (35 examples, yields of 39–100%).
Filipe Vilela (1266402), Stuart A. Macgregor (1350846), Lia Sotorríos (17752464), Christopher G. Thomson (16963710), Gareth Lloyd (17162290), Kenneth G. McKendrick (1271511), Janet E. Lovett (2045767), Brendan Gallagher (16404786), Andreas S. Kalogirou (10525348), Panayiotis A. Koutentis (1278807), Emmanouil Broumidis (16963707), Georgina M. Rosair (628281), Martin J. Paterson (1235301)   +12 more
core   +5 more sources

Novel Mono-Substituted 4H-1,2,6-Thiadiazines with Antioxidant and Anti-Lipoxygenase Activities. [PDF]

Int J Mol Sci
Τhe synthesis of a novel series of mono-substituted 4H-1,2,6-thiadiazine derivatives was reported, aiming at enhancing antioxidant and lipoxygenase inhibitory activities via pharmacophore combination.
Charissopoulos E, Koutentis PA, Kalogirou AS, Pontiki E.   +3 more
europepmc   +2 more sources

Photochemical Ring Editing: Access to Privileged 1,2,5-Thiadiazole Scaffolds via Efficient Carbon Excision from Thiadiazines Under Ambient, Aerobic Conditions [PDF]

, 2022
Thiadiazoles are a privileged motif in medicinal chemistry, however selective mono-oxidation of the endocyclic sulfur, without over oxidation, is challenging.
Panayiotis A., Koutentis, Brendan, Gallagher, Georgina M., Rosair, Andreas S., Kalogirou, Christopher G., Thomson, Stuart A., Macgregor, Lia, Sotorríos, Gareth O., Lloyd, Kenneth G., McKendrick, Filipe, Vilela, Emmanouil, Broumidis, Janet E., Lovett, Martin J., Paterson   +12 more
core   +2 more sources

The Photochemical Mediated Ring Contraction of 4H‑1,2,6-Thiadiazines To Afford 1,2,5-Thiadiazol-3(2H)‑one 1‑Oxides

, 2023
1,2,6-Thiadiazines treated with visible light and 3O2 under ambient conditions are converted into difficult-to-access 1,2,5-thiadiazole 1-oxides (35 examples, yields of 39–100%).
Emmanouil Broumidis, Christopher G. Thomson, Christopher G. Thomson (16963710), Panayiotis A. Koutentis, Kenneth G. McKendrick (1271511), Janet E. Lovett (2045767), Georgina M. Rosair, Andreas S. Kalogirou (10525348), Janet E. Lovett, Kenneth G. McKendrick, Georgina M. Rosair (628281), Lia Sotorríos, Martin J. Paterson (1235301), Martin J. Paterson, Lia Sotorríos (8114585), Filipe Vilela (1266402), Brendan Gallagher, Stuart A. Macgregor, Stuart A. Macgregor (1350846), Gareth O. Lloyd, Brendan Gallagher (16404786), Panayiotis A. Koutentis (1278807), Emmanouil Broumidis (16963707), Filipe Vilela, Andreas S. Kalogirou, Gareth O. Lloyd (1235277)   +25 more
core   +1 more source

Reactions of 4H-1,2,6-Thiadiazine Sulfides

, 2022
3,5-Dichloro-4H-1,2,6-thiadiazin-4-one reacts with benzo[d]thiazole-2-thiol (1 equiv) and triethylamine (1 equiv) to give 3-(benzo[d]thiazol-2-ylthio)-5-chloro-4H-1,2,6-thiadiazin-4-one in 71% yield.
Panayiotis A. Koutentis, Andreas S. Kalogirou   +1 more
core   +1 more source

Inverse Electron-Demand Aza-DielsAlder Reaction of ,-Unsaturated Thioesters with In Situ-Generated 1,2-Diaza-1,3-dienes for the Synthesis of 1,3,4-Thiadiazines

, 2022
A highly regioselective inverse electron-demand aza-Diels–Alder reaction of α,β-unsaturated thioesters with 1,2-diaza-1,3-dienes generated in situ from α-halogeno hydrazones was developed.
Yong You, Yan-Ping Zhang, Yong You (28100), Zhen-Hua Wang (435746), Li-Wen Shen, Wei-Cheng Yuan, Wei-Cheng Yuan (1457101), Jian-Qiang Zhao (706458), Jian-Qiang Zhao, Li-Wen Shen (8681013), Yan-Ping Zhang (432349), Zhen-Hua Wang   +11 more
core   +1 more source

Fused-Ring Thiadiazines:  Preparation and Crystallographic Characterization of 3-Phenyl Derivative of Benzo-, Pyridio[2,3-e]-, Pyrazino[2,3-e]-, and Tetrafluorobenzo-[1,2,4]thiadiazines

, 2016
Four bicyclic 4H-[1,2,4]thiadiazines 1a−d were prepared in 74−88% yields in two steps from the corresponding amidines 2. Three of them, 1a, 1b, and 1d, were obtained by thermal elimination of propene from the intermediate S-propylsulfilimines 12.
Victor G. Young (1405513), Józef Zienkiewicz (2494765), Piotr Kaszynski (1841020)   +2 more
core   +4 more sources

The Acid and/or Thermal Mediated Ring Contraction of 4H‑1,2,6-Thiadiazines To Afford 1,2,5-Thiadiazoles

, 2016
A near-quantitative acid and/or thermal mediated ring contraction of 3′,5′-diarylspiro­(benzo­[d]­[1,3]­dioxole-2,4′-[1,2,6]­thiadiazines) affords 3-aryl-4-(2-arylbenzo­[d]­[1,3]­dioxol-2-yl)-1,2,5-thiadiazoles.
Andreas Kourtellaris (1693780), Panayiotis A. Koutentis (1278807), Andreas S. Kalogirou (1546180)   +2 more
core   +1 more source

Identifying potential candidates for donor-acceptor copolymers on a series of 4H-1,2,6-thiadiazines: An electrochemical approach

, 2013
A series of synthesized small organic molecules based on the 4H-1,2,6-thiadiazine moiety are studied using electrochemistry, to probe their potential as comonomer building blocks for solar-absorbing polymers for organic solar cells.
Choulis, Stelios A., Ioannidou, Heraklidia A., Koutentis, Panayiotis A., Economopoulos, Solon P.   +3 more
core   +1 more source

Reductive conversion of 5-hydroxymethylfurfural to 1,2,6-hexanetriol in water solvent using supported Pt catalysts [PDF]

, 2020
One-pot conversion of biomass derived 5-hydroxymethylfurfural (HMF) to 1,2,6-hexanetriol (1,2,6-HT) in water solvent was performed using Pt catalysts supported on various acid-base metal oxides.
Kataoka, Hiroto, Ohyama, Junya, Ogura, Keiji, Kosuge, Daichi, Satsuma, Atsushi   +4 more
core   +1 more source