Recent advances in sulfonylation reactions using potassium/sodium metabisulfite

Chemical Communications, Год журнала: 2020, Номер 56(30), С. 4145 - 4155

Опубликована: Янв. 1, 2020

Recently, sulfonylation reactions using potassium/sodium metabisulfite as the sulfur dioxide surrogate have been developed rapidly. In most cases, transformations go through radical processes with insertion of under mild conditions. Additionally, transition metal catalysis is applied in for synthesis sulfonyl-containing compounds. Among approaches, photoinduced conversions visible light or ultraviolet irradiation are also involved. this updated report, from potassium sodium summarized.

Язык: Английский

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Recent Advances in the Catalytic Synthesis of Arylsulfonyl Compounds

ACS Catalysis, Год журнала: 2021, Номер 11(7), С. 4169 - 4204

Опубликована: Март 19, 2021

Arylsulfonyl compounds are among the most important in pharmaceutical and medicinal chemistry. Hence, a wide variety of sulfonylation methods have been reported recently. This review summarizes arylsulfonylation methodologies developed last 5 years includes two major categories. The first entails direct second multicomponent arylsulfonylation. In arylsulfonylation, arylsulfonyl reagents react with C–H activated compounds, alkynes, alkenes through coupling or addition reactions. reactions, arylation various substrates sulfur dioxide surrogates, such as DABSO, Na2S2O5, K2S2O5. hydrazides, aryl boronic acids, silanes, halides widely employed that surrogates to generate an source, ensuing reactions proceed via pathways analogous those

Язык: Английский

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A metal-free route to alkynyl sulfones under photoinduced conditions with the insertion of sulfur dioxide

Green Chemistry, Год журнала: 2020, Номер 22(6), С. 1906 - 1910

Опубликована: Янв. 1, 2020

A metal-free route to alkynyl sulfones under photoinduced conditions is accomplished, starting from 4-alkyl Hantzsch esters, sulfur dioxide, and bromides visible light irradiation at room temperature.

Язык: Английский

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Advances in photochemical and electrochemical incorporation of sulfur dioxide for the synthesis of value-added compounds

Chemical Communications, Год журнала: 2021, Номер 57(67), С. 8236 - 8249

Опубликована: Янв. 1, 2021

Photosynthesis and electrosynthesis enable the “green” upcycling of SO 2 to value-added products.

Язык: Английский

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DABSO – A Reagent to Revolutionize Organosulfur Chemistry

Synthesis, Год журнала: 2022, Номер 54(07), С. 1695 - 1707

Опубликована: Янв. 20, 2022

Abstract The introduction of easy-to-handle SO2 surrogates has transformed the field sulfur chemistry, enabling methodologies utilizing to be carried out without specialized apparatus, and paving way for development new procedures. This review highlights some varied significant developments associated with one most prominent surrogates: DABSO. 1 Introduction 2 DABSO 3 Reactions Nucleophilic Reagents 4 Metal-Catalyzed 4.1 Palladium-Catalyzed 4.2 Other Transition-Metal Catalysis 5 Radical 5.1 Aryldiazonium Salts 5.2 Aryl Precursors 5.3 Alkyl 6 Conclusion

Язык: Английский

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Generation and Application of Aryl Radicals Under Photoinduced Conditions

Chemistry - A European Journal, Год журнала: 2024, Номер 30(31)

Опубликована: Март 28, 2024

Abstract Photoinduced aryl radical generation is a powerful strategy in organic synthesis that facilitates the formation of diverse carbon‐carbon and carbon‐heteroatom bonds. The synthetic applications photoinduced complex compounds, including natural products, physiologically significant molecules, functional materials, have received immense attention. An overview current developments production methods their uses given this article. A generalized idea how to choose reagents approach for radicals described, along with techniques associated mechanistic insights. Overall, article offers critical assessment results as well selection reaction parameters specific context cascades, cross‐coupling reactions, functionalization, selective C−H functionalization substrates.

Язык: Английский

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A copper-catalyzed insertion of sulfur dioxide via radical coupling

Chemical Communications, Год журнала: 2020, Номер 56(21), С. 3225 - 3228

Опубликована: Янв. 1, 2020

A copper-catalyzed reaction of O-acyl oximes, DABCO·(SO₂)₂, and 2H-azirines is developed under mild conditions, leading to diverse tetrasubstituted β-sulfonyl N-unprotected enamines with excellent stereoselectivity regioselectivity.

Язык: Английский

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Copper-catalyzed synthesis of sulfonamides from nitroarenes via the insertion of sulfur dioxide

Chemical Communications, Год журнала: 2020, Номер 56(23), С. 3437 - 3440

Опубликована: Янв. 1, 2020

A three-component reaction of arylboronic acids, nitroarenes, and potassium metabisulfite under copper catalysis proceeds smoothly, giving rise to a range sulfonamides in good excellent yields with broad substrate scope.

Язык: Английский

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Sulfonylation from sodium dithionite or thiourea dioxide

Chinese Chemical Letters, Год журнала: 2020, Номер 32(1), С. 461 - 464

Опубликована: Май 12, 2020

Язык: Английский

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Photocatalytic Decarboxylative [2 + 2 + m] Cyclization of 1,7-Enynes Mediated by Tricyclohexylphosphine and Potassium Iodide

Organic Letters, Год журнала: 2020, Номер 22(22), С. 8819 - 8823

Опубликована: Ноя. 2, 2020

A novel photocatalytic decarboxylative [2 + 2 m] cyclization of 1,7-enynes with alkyl N-hydroxyphthalimide (NHP) esters, using tricyclohexylphosphine and potassium iodide as redox catalysts, is reported for the construction functional polycyclic compounds. This protocol tolerates primary, secondary, tertiary NHP esters through a single reaction via decarbonylation, radical addition, C-H functionalization, under mild conditions.

Язык: Английский

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