Visible light-promoted difluoromethylthiolation of aryldiazonium salts

2018 ◽  
Vol 16 (44) ◽  
pp. 8565-8568 ◽  
Author(s):  
Wengui Wang ◽  
Shuxiang Zhang ◽  
Huaiqing Zhao ◽  
Shoufeng Wang
Keyword(s):  
Visible Light ◽  
Mild Conditions ◽  
Stable Reagent ◽  
Shelf Stable

Difluoromethylthiolation of aryldiazonium salts under mild conditions using a shelf-stable reagent (PhSO2SCF2H) was reported.

New Avenues in Radical Trifluoromethylselenylation with ­Trifluoromethyl Tolueneselenosulfonate

Synlett ◽  
2018 ◽  
Vol 30 (07) ◽  
pp. 777-782 ◽  
Author(s):  
Clément Ghiazza ◽  
Cyrille Monnereau ◽  
Lhoussain Khrouz ◽  
Maurice Médebielle ◽  
Thierry Billard ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Transition Metal ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Diazonium Salts ◽  
Metal Free ◽  
Luminescence Measurement ◽  
Stable Reagent ◽  
Shelf Stable

We demonstrated that the shelf-stable reagent trifluoromethyl tolueneselenosulfonate can be involved in radical trifluoromethylselenylation. Upon visible-light irradiation, the homolysis of the reagent could take place at room temperature. This finding is explored for unprecedented C(sp2)–SeCF3 and C(sp3)–SeCF3 processes under transition-metal-free conditions. Mechanistic investigations, including cyclic voltammetry, luminescence measurement, and EPR studies, allowed the proposal of plausible mechanisms.1 Introduction.2 Reactivity of Reagent I with Diazonium Salts3 Reactivity of Reagent I with Alkenes and Alkynes4 Conclusion

scholarly journals Visible-Light-Mediated Synthesis of Trifluoromethylthiolated Arenes

Synthesis ◽  
2018 ◽  
Vol 51 (14) ◽  
pp. 2865-2870 ◽  
Author(s):  
Clément Ghiazza ◽  
Cyrille Monnereau ◽  
Lhoussain Khrouz ◽  
Thierry Billard ◽  
Anis Tlili
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Reaction Conditions ◽  
Reaction Proceeds ◽  
Stable Reagent ◽  
Shelf Stable

The visible-light-mediated synthesis of trifluoromethylthiolated arenes in the presence of ruthenium-based photocatayst under mild reaction conditions is reported. The trifluoromethylthiolated arenes are obtained using the shelf-stable reagent trifluoromethyl toluenethiosulfonate at room temperature. The reaction proceeds selectively and does not require the presence of any additive. A mechanism is proposed based on the obtained results of EPR as well as luminescence

scholarly journals Silica Gel-Induced Aryne Generation from o-Triazenylarylboronic Acids as Stable Solid Precursors

2021 ◽  
Author(s):  
Motoki Ito ◽  
Yuka Yamabayashi ◽  
Mio Oikawa ◽  
Emi Kano ◽  
Kazuhiro Higuchi ◽  
...  
Keyword(s):  
Silica Gel ◽  
Mild Conditions ◽  
Shelf Stable

We report the development of o-triazenylarylboronic acids as shelf-stable solid aryne precursors, which generate (hetero)arynes under remarkably mild conditions using silica gel as the sole reagent and undergo reactions with...

Hierarchical p-BiOI/n-BiPO4 heterojunction nanocomposite with enhanced visible-light photocatalytic desulfurization of thiophene under mild conditions

2020 ◽  
Author(s):  
Omid Amiri ◽  
Farshad Beshkar ◽  
Sangar S. Ahmed ◽  
Peshawa H. Mahmood ◽  
Ahmed Anwar Dezaye
Keyword(s):  
Visible Light ◽  
Mild Conditions ◽  
Visible Light Photocatalytic

Enantioselective Radical Functionalization of Imines and Iminium Intermediates via Visible Light Photoredox Catalysis

Synthesis ◽  
2020 ◽  
Author(s):  
Jia-Jia Zhao ◽  
Hong-Hao Zhang ◽  
Shouyun Yu
Keyword(s):  
Visible Light ◽  
Asymmetric Synthesis ◽  
Carbonyl Compounds ◽  
Asymmetric Reduction ◽  
Chemical Transformations ◽  
Photoredox Catalysis ◽  
Radical Coupling ◽  
Mild Conditions ◽  
Iminium Ions ◽  
Radical Functionalization

Visible light photoredox catalysis has recently emerged as a powerful tool for the development of new and valuable chemical transformations under mild conditions. Visible-light promoted enantioselective radical transformations of imines and iminium intermediates provide new opportunities for the asymmetric synthesis of amines and asymmetric β-functionalization of unsaturated carbonyl compounds. In this review, the advance in the catalytic asymmetric radical functionalization of imines, as well as iminium intermediates, are summarized. 1 Introduction 2 The enantioselective radical functionalization of imines 2.1 Asymmetric reduction 2.2 Asymmetric cyclization 2.3 Asymmetric addition 2.4 Asymmetric radical coupling 3 The enantioselective radical functionalization of iminium ions 3.1 Asymmetric radical alkylation 3.2 Asymmetric radical acylation 4 Conclusion

Visible-Light-Induced Amination of Quinoline at the C8 Position via a Postcoordinated Interligand-Coupling Strategy under Mild Conditions

2021 ◽  
Author(s):  
He-Long Peng ◽  
Yinwu Li ◽  
Xing-Yang Chen ◽  
Li-Ping Li ◽  
Zhuofeng Ke ◽  
...  
Keyword(s):  
Visible Light ◽  
Mild Conditions ◽  
Coupling Strategy

Visible-Light-Mediated Tandem Sulfonylation/Cyclization of Vinyl Azides with Sulfonyl Hydrazines for the Synthesis of 6-(Sulfonylmethyl)phenanthridines under Mild Conditions

Synlett ◽  
2019 ◽  
Vol 30 (08) ◽  
pp. 955-960 ◽  
Author(s):  
Liu-Liang Mao ◽  
Li-Xia Quan ◽  
Xian-Hong Zhu ◽  
Cong-Bin Ji ◽  
An-Xi Zhou ◽  
...  
Keyword(s):  
Visible Light ◽  
Mild Conditions ◽  
Simple Strategy ◽  
Vinyl Azides

A visible-light-mediated tandem sulfonylation/cyclization of vinyl azides with sulfonyl hydrazines was developed that provides an efficient and simple strategy for the synthesis of valuable 6-(sulfonylmethyl)phenanthridines with a broad substrate scope and satisfactory yields under mild conditions.

Visible light-photocatalysed carbazole synthesis via a formal (4+2) cycloaddition of indole-derived bromides and alkynes

2016 ◽  
Vol 52 (29) ◽  
pp. 5128-5131 ◽  
Author(s):  
Zhi-Guang Yuan ◽  
Qiang Wang ◽  
Ang Zheng ◽  
Kai Zhang ◽  
Liang-Qiu Lu ◽  
...  
Keyword(s):  
Visible Light ◽  
Mild Conditions ◽  
Wide Range

We have developed an unprecedented route to carbazole by a visible light-photocatalysed formal (4+2) cycloaddition of indole-derived bromides and alkynes. Using this method, a wide range of highly functionalised carbazoles were produced in good yields under mild conditions.

Visible-light-assisted efficient removal of sulfur from high sulfur coal under mild conditions

2021 ◽  
pp. 1-15
Author(s):  
Gongcheng Sun ◽  
Mei Li ◽  
Xueyun Cheng ◽  
Ning Ding ◽  
Jingsong Yue ◽  
...  
Keyword(s):  
Visible Light ◽  
Efficient Removal ◽  
Mild Conditions

Organic Sulfinic Acids and Salts in Visible Light-Induced Reactions

Synthesis ◽  
2021 ◽  
Author(s):  
Zheng Lu ◽  
Mingzhou Shang ◽  
Hongjian Lu
Keyword(s):  
Visible Light ◽  
Reaction Mechanisms ◽  
Review Article ◽  
Reaction Type ◽  
Mild Conditions ◽  
Sulfinic Acids ◽  
Sulfur Containing

Sulfinic acids and their salts are a useful source of sulfur-containing structures. Photocatalysis of these compounds with visible light enables chemists to achieve various transformations under mild conditions. This review article summarizes visible light-induced reactions of sulfinic acids and their salts. This article is organized by reaction type and brief discussions on plausible reaction mechanisms for typical transformations are presented.

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