Visible-light-mediated difunctionalization of vinylcyclopropanes for the synthesis of 1-sulfonylmethyl-3,4-dihydronaphthalenes

2019 ◽  
Vol 17 (34) ◽  
pp. 7918-7926 ◽  
Author(s):  
Qiao-Lin Wang ◽  
Wen-Zheng Zhang ◽  
Quan Zhou ◽  
Cong-Shan Zhou ◽  
Bi-Quan Xiong ◽  
...  
Keyword(s):  
Visible Light ◽  
Efficient Method ◽  
Sulfonyl Chlorides

An efficient method for the visible-light-mediated sulfonylation/arylation of the C–C σ-bond in vinylcyclopropanes with sulfonyl chlorides to synthesize 1-sulfonylmethyl-substituted 3,4-dihydronaphalenes has been developed.

Phthalide synthesis through dehydrogenated lactonization of the C(sp3)–H bond by photoredox catalysis

2021 ◽  
Author(s):  
Hui Liu ◽  
Chao Liu ◽  
Shanyi Chen ◽  
Qihong Lai ◽  
Yulin Lin ◽  
...  
Keyword(s):  
Visible Light ◽  
Efficient Method ◽  
Room Temperature ◽  
Photoredox Catalysis ◽  
Metal Free

An efficient method for the direct oxidative lactonization of the C(sp3)–H bonds of benzyl via visible-light-induced photoredox catalysis. The metal-free protocol delivers diverse phthalides using O2 as the sole terminal oxidant at room temperature.

A multicomponent reaction on a ‘free’ KCC-1 catalyst at room temperature under solvent free conditions by visible light

RSC Advances ◽  
2016 ◽  
Vol 6 (59) ◽  
pp. 54236-54240 ◽  
Author(s):  
Seyed Mohsen Sadeghzadeh
Keyword(s):  
Visible Light ◽  
Multicomponent Reaction ◽  
Efficient Method ◽  
Room Temperature ◽  
Solvent Free ◽  
Green Protocol ◽  
Mild Conditions ◽  
Solvent Free Conditions

A green and efficient method for the synthesis of various triazolo[1,2-a]indazoletrione under mild conditions is reported, that making it a genuinely green protocol.

Visible-light-induced direct oxysulfonylation of alkynes with sulfonyl chlorides and HCl

2017 ◽  
Vol 58 (45) ◽  
pp. 4299-4303 ◽  
Author(s):  
Tengfei Niu ◽  
Dingyun Jiang ◽  
Bangqing Ni
Keyword(s):  
Visible Light ◽  
Sulfonyl Chlorides

Visible light photoredox catalyzed thiophosphate synthesis using methylene blue as a promoter

2018 ◽  
Vol 5 (9) ◽  
pp. 1416-1422 ◽  
Author(s):  
Hao Zhang ◽  
Zhen Zhan ◽  
Yan Lin ◽  
Yuesen Shi ◽  
Guobo Li ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Visible Light ◽  
Blue Light ◽  
Efficient Method ◽  
Light Irradiation ◽  
Air Atmosphere

A novel efficient method for the synthesis of thiophosphate derivatives catalyzed by methylene blue with blue light irradiation under an air atmosphere is described.

Visible-light-mediated oxidative arylation of vinylarenes under aerobic conditions

2015 ◽  
Vol 5 (2) ◽  
pp. 830-834 ◽  
Author(s):  
Meijie Bu ◽  
Teng Fei Niu ◽  
Chun Cai
Keyword(s):  
Visible Light ◽  
Efficient Method ◽  
Aerobic Conditions

A mild and efficient method for the photocatalytic oxidative arylation of vinylarenes to generate 1,2-diarylated ethanones has been developed.

Synthesis and Photocleavage of Quinoline Methyl Ethers: A Mild and Efficient Method for the Selective Protection and Deprotection of the Alcohol Functionality

2016 ◽  
Vol 69 (7) ◽  
pp. 763
Author(s):  
Anthony A. Provatas ◽  
Gary A. Epling ◽  
James D. Stuart
Keyword(s):  
Electron Transfer ◽  
Visible Light ◽  
Methyl Ether ◽  
Efficient Method ◽  
Substitution Reaction ◽  
Radical Scavenger ◽  
Single Electron Transfer ◽  
Radical Intermediate ◽  
Strong Base ◽  
Selective Protection

The synthesis and photocleavage of quinolinyl methyl ether-protected alcohols is reported in this study. A variety of quinoline methyl chlorides were synthesized, and protection of the various alcohols was performed via a substitution reaction in the presence of a strong base. Photocleavage of the quinolinyl methyl ether moiety proceeded under visible light with the formation of the charged quinolinyl radical intermediate through a single-electron transfer in the presence of a photosensitizer dye leading to the deprotected alcohol in excellent yields. The utility of triethylamine as a sacrificial reductant and d-sorbitol as a radical scavenger were also investigated in this study.

Visible-light-promoted oxidative difunctionalization of alkenes with sulfonyl chlorides to access β-keto sulfones under aerobic conditions

2017 ◽  
Vol 58 (37) ◽  
pp. 3667-3671 ◽  
Author(s):  
Teng-fei Niu ◽  
Jing Cheng ◽  
Chang-li Zhuo ◽  
Ding-yun Jiang ◽  
Xing-ge Shu ◽  
...  
Keyword(s):  
Visible Light ◽  
Aerobic Conditions ◽  
Sulfonyl Chlorides ◽  
Oxidative Difunctionalization

A simple and efficient method to prepare a phosphorus modified g-C3N4 visible light photocatalyst

RSC Advances ◽  
2014 ◽  
Vol 4 (41) ◽  
pp. 21657-21663 ◽  
Author(s):  
Shaozheng Hu ◽  
Lin Ma ◽  
Jiguang You ◽  
Fayun Li ◽  
Zhiping Fan ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Efficient Method ◽  
Visible Light Photocatalyst

Interstitial P doping is more effective in improving the photocatalytic activity compared with substitutional P doping.

Visible-light-initiated difluoromethylation of arene diazonium tetrafluoroborates

2016 ◽  
Vol 52 (35) ◽  
pp. 5965-5968 ◽  
Author(s):  
Ye-bin Wu ◽  
Guo-ping Lu ◽  
Bao-jing Zhou ◽  
Mei-jie Bu ◽  
Li Wan ◽  
...  
Keyword(s):  
Visible Light ◽  
Efficient Method ◽  
Room Temperature ◽  
Radical Addition

A mild and efficient method for the radical addition of α-aryl-β,β-difluoroenol silyl with arene diazonium tetrafluoroborates at room temperature has been disclosed.

Visible-Light-Promoted Direct Trifluoromethylation and Perfluoroalkylation of Imidazopyridines

2021 ◽  
Author(s):  
Meichen Li ◽  
Gaolin Li ◽  
Chenxun Dai ◽  
Wenjun Zhou ◽  
Wenqiang Zhan ◽  
...  
Keyword(s):  
Visible Light ◽  
Efficient Method ◽  
Bond Functionalization ◽  
Blue Led

An efficient method for direct trifluoromethylation and perfluoroalkylation at C3 of imidazopyridines through visible light-promoted C-H bond functionalization was developed. Under the irradiation of blue LED, a series of C3-perfluoroalkyl...

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