Recent Advances in Electrochemical Utilization of NHPI Esters

Organic & Biomolecular Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

This review highlights recent progress in the electrochemical use of NHPI esters for sustainable C–C and C–X bond formation under both metal-catalyzed metal-free conditions.

Язык: Английский

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Thiocarboxylate and Acid Chloride Mediated Generation of Nitric Oxide from a Dinickel(II)-Bis(ONO) Complex Involving the Formation of Perthionitrite and O-Nitrosyl Carboxylate

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Апрель 22, 2025

A detailed study for the generation of nitric oxide (NO) upon reaction a binuclear Ni(II)-bis(ONO) complex with carboxylic acids (RCOOH, R = Me, Ph), thiols (RSH, Ph, p-F-C6H4), benzeneselenol (PhSeH), thiocarboxylates (RC(O)S-, thiocarboxylic (RC(O)SH, and acid chlorides (RC(O)Cl, Ph) has been presented. The reactions thiols/selenols give access to unusual dinickel(II)-nitrito-thiolato/selenolato complexes, while RC(O)S-, RC(O)SH, RC(O)Cl offer new mechanistic insights into perthionitrite (SSNO-) O-nitrosyl carboxylates (RC(O)ONO), well-known NO-carrying species in biology. Interestingly, RC(O)S- involved nucleophilic attack latter coordinated NO2- generate SSNO-, proceeds via hitherto unknown carbonyl carbon RC(O)ONO, which, turn, produces NO. present comparative thus demonstrates metal-coordinated investigations supported by molecular structure determinations spectroscopic studies establishes nitrite be highly efficient method NO excellent yield.

Язык: Английский

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Iron‐Catalyzed, Light‐Driven Decarboxylative Oxygenation

European Journal of Organic Chemistry, Год журнала: 2023, Номер 26(44)

Опубликована: Окт. 4, 2023

Abstract An iron‐catalyzed, visible light‐driven, dioxygen mediated decarboxylative oxygenation of carboxylic acids is disclosed. The catalytic system based on naturally existing Mohr salt and simple di(2‐picolyl)amine ligand readily available inexpensive. applicability the method was demonstrated through efficient selective synthesis a range ketones, aldehydes amides including drug derivatives. Based experimental investigations, hypothetical mechanism proposed.

Язык: Английский

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Oxidative Conversion of Polyethylene Towards Di‐Carboxylic Acids: A Multi‐Analytical Approach

ChemSusChem, Год журнала: 2023, Номер 17(7)

Опубликована: Ноя. 27, 2023

Abstract To reduce the pressure on environment created by increasing amount of plastic waste, need to develop suitable recycling methods has become more evident. However, chemical toolbox for polyethylene (PE), most abundant type remains underdeveloped. In this work, analytical were developed explore possibility oxidatively convert PE into di‐carboxylic acids as reaction products. A multi‐analytical approach including gas chromatography‐mass spectrometry, chromatography‐flame ionization detection, several (2D) nuclear magnetic resonance well in‐situ transmission infrared spectroscopy was used. This led a thorough qualitative and quantitative analysis product mixture, which extends clarifies existing literature. Without catalyst (thermally) already up 7 mol % can be formed. Furthermore, it found that majority oxidized functionalities are carboxylic acids, (methyl) ketones, γ‐lactones, γ‐ketones esters. An intra‐molecular hydrogen shift seemed key in cleavage step formation late‐stage side addition, crosslinking reactions due esterification seem limit acid yield. Therefore, these two handles taken account study design similar (catalytic) systems oxidative conversion waste.

Язык: Английский

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Recent advances in stereoselective synthesis of non-classical glycosides

Tetrahedron Chem, Год журнала: 2024, Номер 9, С. 100068 - 100068

Опубликована: Фев. 24, 2024

Язык: Английский

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