The Royal Society of Chemistry eBooks, Год журнала: 2023, Номер unknown, С. 147 - 167
Опубликована: Фев. 15, 2023
Heterocycles containing chalcogens as heteroatoms or embedded in several different functional groups founded interesting applications medicinal chemistry, coordination and materials. Recent development on their preparation is reported here.
Язык: Английский
The Journal of Organic Chemistry, Год журнала: 2022, Номер 87(6), С. 4273 - 4283
Опубликована: Март 4, 2022
We report herein an alternative method for the synthesis of seleno-dibenzocycloheptenones and seleno-spiro[5.5]trienones through radical cyclization biaryl ynones in presence diorganyl diselenides, using Oxone as a green oxidizing agent. The reactions were conducted acetonitrile solvent sealed tube at 100 °C. protocol is operationally simple scalable, exhibits high regioselectivity, allows 24 dibenzocycloheptenones/spiro[5.5]trienones yields up to 99%, 17 which are unpublished compounds. Additionally, synthetic transformations prepared compounds, such oxidation reduction reactions, demonstrated.
Язык: Английский
Процитировано
27
ChemistrySelect, Год журнала: 2022, Номер 7(23)
Опубликована: Июнь 17, 2022
Abstract Presently, the major cornerstone of research community is to develop green as well sustainable protocols involving inexpensive catalysts and/or reagents without usage hazardous solvents under globally friendlier conditions in order shelter both mankind and environment. Therefore, needless say, there always a supreme need surrogate older, costlier unsafe strategies with novel economically environmental benign ones. To this context, recent past, oxone® (triple salt), very cheap oxidizing agent having chemical formula 2KHSO 5 ⋅ KHSO 4 K 2 SO enwrapped unique characteristics like easy handling, non‐toxic, safe, eco‐friendly, non‐polluting, stable, nicely soluble water, addition its utility for large‐scale synthesis etc. Bearing importance versatile reagent mind, we envisioned update advances made direction. Consequently, particular review article, developments arena oxone chemistry covering from 2013 2020 have been revealed no report appeared literature after wonderful Chem. Rev. published by group Hussain 2013. Herein, comprehensive detail variety oxidative transformations along complete plausible mechanistic steps exposed. For sure, present would be helpful tool scientific not only working area organic but also researchers other branches science technologies well.
Язык: Английский
Процитировано
26
Chemistry - An Asian Journal, Год журнала: 2023, Номер 18(5)
Опубликована: Янв. 17, 2023
The versatility of isocoumarin frameworks offers the privilege to access many pharmacological targets. This unique heterocycle core present in natural products and complex organic molecules contribute medicinal chemistry as anti-cancer, anti-inflammatory immunomodulatory agents. attractive properties exhibited by its analogues urged scientists explore their synthetic analogues. In regard myriads methodologies, we have compiled a review update covering all articles that been published towards synthesis 3-substituted 3,4-disubstituted isocoumarins. Additionally, also highlighted systematic survey catalytic methods for along with scope diverse functionalizations plausible mechanistic aspects.
Язык: Английский
Процитировано
13
Tetrahedron, Год журнала: 2023, Номер 150, С. 133740 - 133740
Опубликована: Ноя. 12, 2023
Язык: Английский
Процитировано
9
The Journal of Organic Chemistry, Год журнала: 2025, Номер unknown
Опубликована: Апрель 8, 2025
A novel green methodology for the Oxone-mediated oxidative addition of alkenes via intramolecular acyl migration has been developed. This transformation utilizes N-acyl-N-sulfonyl allylamines and diselenides as starting materials, with Oxone serving oxidant water a partial oxygen source. The protocol enables synthesis series β-acyloxy-γ-selenyl sulfonamides high to excellent yields demonstrates broad substrate scope. Notably, yield was maintained in gram-scale experiments, highlighting scalability this method. Through comprehensive control we have elucidated reaction mechanism, which involves rapid radical generation, predominant cationic pathway, migration. study presents an efficient environmentally benign approach valuable sulfonamides.
Язык: Английский
Процитировано
0
Journal of Organometallic Chemistry, Год журнала: 2025, Номер unknown, С. 123684 - 123684
Опубликована: Апрель 1, 2025
Язык: Английский
Процитировано
0
The Journal of Organic Chemistry, Год журнала: 2022, Номер 87(22), С. 15050 - 15060
Опубликована: Окт. 27, 2022
We describe here for the first time synthesis of 2-(chalcogenyl)-3H-benzo[f]chromenes and new 3-(phenylselanyl)-2H-chromenes by radical or electrophilic cyclization propargylic aryl ethers in presence diorganyl diselenides ditellurides using Oxone as a green oxidant acetonitrile solvent sealed tube at 100 °C. In this study, thirty-one chalcogenylchromenes with broad substrate scope were prepared moderate to excellent yields (50-98%), including compounds derived from natural products.
Язык: Английский
Процитировано
13
New Journal of Chemistry, Год журнала: 2023, Номер 47(13), С. 6066 - 6072
Опубликована: Янв. 1, 2023
A total of thirty-four 3-selanylimidazopyridines were easily prepared in 50–94% yields using bench stable arylseleninic acids as a selenium source.
Язык: Английский
Процитировано
7
Catalysts, Год журнала: 2023, Номер 13(10), С. 1369 - 1369
Опубликована: Окт. 15, 2023
The last decade has witnessed significant progress in the development of novel synthetic methods for preparation a variety new functionalized and condensed compounds via reactions organic dichalcogenides with acetylenic derivatives. present review highlights recent developments synthesis organoselenium based on diselenides acetylenes over past few years. discussion mainly focuses literature data 5 It is worth noting that lion’s share this material devoted to catalytic electrophile-mediated aromatic compounds, containing triple bond nucleophilic functional groups.
Язык: Английский
Процитировано
6
Ultrasonics Sonochemistry, Год журнала: 2021, Номер 80, С. 105834 - 105834
Опубликована: Ноя. 16, 2021
In organic and inorganic synthesis in analytical methods, an external conventional heat source is usually applied to carry out a chemical reaction at high temperature, or extraction procedure. the last decades, use of ultrasound as alternative energy has become interesting field research these topics South Cone region (Argentina, Chile, Uruguay, Southern Brazil Paraguay). For this reason, present review, covering period 2009 mid-2021, compilation ultrasound-assisted synthetic methodologies.
Язык: Английский
Процитировано
14