Photoinduced synthesis of allylic sulfones using potassium metabisulfite as the source of sulfur dioxide

2019 ◽  
Vol 6 (1) ◽  
pp. 36-40 ◽  
Author(s):  
Jun Zhang ◽  
Kaida Zhou ◽  
Guanyinsheng Qiu ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Ultraviolet Irradiation ◽  
Room Temperature ◽  
Alkyl Halides ◽  
Three Component Reaction ◽  
Photoinduced Synthesis

Synthesis of allylic sulfones through a photoinduced three-component reaction of aryl/alkyl halides, potassium metabisulfite, and allylic bromides under ultraviolet irradiation at room temperature is developed. Diverse allylic sulfones are generated in moderate to good yields.

Photoinduced synthesis of 2-sulfonylacetonitriles with the insertion of sulfur dioxide under ultraviolet irradiation

2020 ◽  
Vol 56 (17) ◽  
pp. 2554-2557 ◽  
Author(s):  
Kaida Zhou ◽  
Jin-Biao Liu ◽  
Wenlin Xie ◽  
Shengqing Ye ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Ultraviolet Irradiation ◽  
Room Temperature ◽  
Metal Free ◽  
Alkyl Iodides ◽  
Photoinduced Synthesis

Metal-free insertion of sulfur dioxide with aryl/alkyl iodides and 3-azido-2-methylbut-3-en-2-ol under ultraviolet irradiation at room temperature is achieved, giving rise to 2-sulfonylacetonitriles in moderate to good yields.

Generation of N-aminosulfonamides via a photo-induced fixation of sulfur dioxide into aryl/alkyl halides

2016 ◽  
Vol 3 (5) ◽  
pp. 574-578 ◽  
Author(s):  
Yuewen Li ◽  
Danqing Zheng ◽  
Zhenhua Li ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Ultraviolet Irradiation ◽  
Alkyl Halides ◽  
Mild Conditions ◽  
Catalyst Free ◽  
Redox Catalysts ◽  
Three Component Reaction

A catalyst-free aminosulfonylation through insertion of sulfur dioxide with aryl/alkyl halides enabled by photoenergy is presented. Under ultraviolet irradiation, a three-component reaction of aryl/alkyl halides, sulfur dioxide, and hydrazines proceeds under mild conditions without any metals or photo-redox catalysts.

A copper(i)-catalyzed three-component reaction of triethoxysilanes, sulfur dioxide, and alkyl halides

2016 ◽  
Vol 3 (3) ◽  
pp. 359-363 ◽  
Author(s):  
Danqing Zheng ◽  
Runyu Mao ◽  
Zhiming Li ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Alkyl Halides ◽  
Coupling Process ◽  
Three Component Reaction ◽  
Ligand Free ◽  
Facile Route

A copper(i)-catalyzed three-component reaction of triethoxysilanes, DABCO·(SO2)2, and alkyl halides is reported. This transformation provides a facile route to sulfones under ligand-free conditions catalyzed by copper(i) oxide. The insertion of sulfur dioxide is efficient, and both triethoxyarylsilanes and triethoxyalkylsilanes are practicable during the coupling process.

Photoinduced synthesis of (E)-vinyl sulfones through the insertion of sulfur dioxide

2018 ◽  
Vol 5 (21) ◽  
pp. 3153-3157 ◽  
Author(s):  
Tong Liu ◽  
Yechun Ding ◽  
Xiaona Fan ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Mild Conditions ◽  
Three Component Reaction ◽  
Photoinduced Synthesis

Under visible light irradiation, a three-component reaction of potassium alkyltrifluoroborates, sulfur dioxide and alkynes with the assistance of photocatalysis and in the presence of copper(ii) triflate is described. This transformation affords (E)-vinyl sulfones efficiently with excellent regioselectivity and stereoselectivity under mild conditions.

Metal-free insertion of sulfur dioxide with aryl iodides under ultraviolet irradiation: direct access to sulfonated cyclic compounds

2020 ◽  
Vol 7 (1) ◽  
pp. 14-18 ◽  
Author(s):  
Shengqing Ye ◽  
Kaida Zhou ◽  
Pornchai Rojsitthisak ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Ultraviolet Irradiation ◽  
Room Temperature ◽  
Direct Access ◽  
Metal Free ◽  
Mild Conditions ◽  
Aryl Iodides ◽  
Convenient Route ◽  
Cyclic Compounds ◽  
Allylic Bromide

Metal-free insertion of sulfur dioxide with aryl iodides and silyl enolates or allylic bromide under ultraviolet irradiation at room temperature is accomplished. This protocol provides a convenient route to sulfonated cyclic compounds under mild conditions.

Generation of (2-oxoindolin-3-yl)methanesulfonohydrazides via a photo-induced reaction of N-(2-iodoaryl)acrylamide, DABSO, and hydrazine

2016 ◽  
Vol 3 (7) ◽  
pp. 865-869 ◽  
Author(s):  
Kaida Zhou ◽  
Hongguang Xia ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Ultraviolet Irradiation ◽  
Catalyst Free ◽  
Three Component Reaction ◽  
Induced Reaction

A photo-induced catalyst-free three-component reaction of N-(2-iodoaryl)acrylamide, sulfur dioxide, and hydrazine is reported. Under ultraviolet irradiation, diverse (2-oxoindolin-3-yl)methanesulfonohydrazides are generated in moderate to good yields.

Photoinduced synthesis of alkylalkynyl sulfones through a reaction of potassium alkyltrifluoroborates, sulfur dioxide, and alkynyl bromides

2020 ◽  
Vol 7 (7) ◽  
pp. 938-943 ◽  
Author(s):  
Xinxing Gong ◽  
Min Yang ◽  
Jin-Biao Liu ◽  
Fu-Sheng He ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Light Irradiation ◽  
Sodium Metabisulfite ◽  
Photoinduced Reaction ◽  
Photoinduced Synthesis

A photoinduced reaction of potassium alkyltrifluoroborates, sodium metabisulfite, and alkynyl bromides under visible light irradiation at room temperature is developed.

The Reactivity of Different Active Forms of Sodium Carbonate with Respect to Sulfur Dioxide

1992 ◽  
Vol 57 (11) ◽  
pp. 2302-2308
Author(s):  
Karel Mocek ◽  
Erich Lippert ◽  
Emerich Erdös
Keyword(s):  
Thermal Decomposition ◽  
Liquid Phase ◽  
Sulfur Dioxide ◽  
Specific Surface ◽  
Surface Area ◽  
Sodium Carbonate ◽  
Room Temperature ◽  
Active Form ◽  
The Other ◽  
Kinetics Of

The kinetics of the reaction of solid sodium carbonate with sulfur dioxide depends on the microstructure of the solid, which in turn is affected by the way and conditions of its preparation. The active form, analogous to that obtained by thermal decomposition of NaHCO3, emerges from the dehydration of Na2CO3 . 10 H2O in a vacuum or its weathering in air at room temperature. The two active forms are porous and have approximately the same specific surface area. Partial hydration of the active Na2CO3 in air at room temperature followed by thermal dehydration does not bring about a significant decrease in reactivity. On the other hand, if the preparation of anhydrous Na2CO3 involves, partly or completely, the liquid phase, the reactivity of the product is substantially lower.

Generation of (E)-β-sulfonyl enamines from sulfur dioxide via a radical process

2021 ◽  
Vol 8 (8) ◽  
pp. 1789-1794
Author(s):  
Xiaodong Tu ◽  
Jiapian Huang ◽  
Wenlin Xie ◽  
Tonghao Zhu ◽  
Jie Wu
Keyword(s):  
Sulfur Dioxide ◽  
Radical Process ◽  
Three Component Reaction

An iron(ii)-catalyzed three-component reaction of O-acyl oximes, sulfur dioxide, and N-vinylacetamides is accomplished. Diverse (E)-β-sulfonyl enamines are obtained in moderate to good yields by using this protocol with excellent stereoselectivity and regioselectivity.

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