Visible light initiated amino group ortho-directed copper(i)-catalysed aerobic oxidative C(sp)–S coupling reaction: synthesis of substituted 2-phenylbenzothiazoles via thia-Wolff rearrangement

2020 ◽  
Vol 56 (26) ◽  
pp. 3781-3784 ◽  
Author(s):  
Mandapati Bhargava Reddy ◽  
Ramasamy Anandhan
Keyword(s):  
Visible Light ◽  
Coupling Reaction ◽  
Reaction Synthesis ◽  
Amino Group ◽  
Terminal Alkynes ◽  
Wolff Rearrangement ◽  
Visible Light Driven

A facile amino group ortho-directed visible-light-driven Cu(i)-catalysed aerobic oxidative C(sp)–S coupling reaction of a dimer of 2-aminothiophenol with terminal alkynes was achieved. The resulting alkynyl sulfides was converted to 2-phenylbenzothiazole via “thia-Wolff rearrangement”.

Visible-Light-Promoted Three-Component Cycloaddition Reaction: Synthesis of 4-Functionalized 1,5-Disubstituted 1,2,3-Triazoles

2021 ◽  
Author(s):  
atul kumar ◽  
Navaneet Kumar ◽  
Deepak Bhadoria
Keyword(s):  
Visible Light ◽  
Cycloaddition Reaction ◽  
Reaction Synthesis ◽  
Terminal Alkynes ◽  
Sodium Salts ◽  
Three Component Reaction

A first visible-light promoted and photocatalyst-free three-component reaction protocol has been developed to synthesize 4-functionalized 1,5-disubstituted 1,2,3-triazoles from terminal alkynes, arylazides, and arylsulfinic acid sodium salts or arylsulfonyl hydrazides in...

Visible light-driven photocatalytic Heck reaction over carbon nanocoil supported Pd nanoparticles

2016 ◽  
Vol 6 (21) ◽  
pp. 7738-7743 ◽  
Author(s):  
Xiao-Wei Guo ◽  
Cai-Hong Hao ◽  
Cheng-Yu Wang ◽  
Sarina Sarina ◽  
Xiao-Ning Guo ◽  
...  
Keyword(s):  
Visible Light ◽  
Heck Reaction ◽  
Coupling Reaction ◽  
Pd Nanoparticles ◽  
Aryl Halides ◽  
Pd Nanoparticle ◽  
Visible Light Driven ◽  
Nanoparticle System ◽  
Supported Pd

This paper presents a carbon nanocoil supported Pd nanoparticle system (Pd/CNCs) as a photocatalyst for coupling reaction of aryl halides and alkenes (Heck reaction) at 40 °C.

scholarly journals Design of a Multi-Use Photoreactor to Enable Visible Light Photocatalytic Chemical Transformations and Labeling in Live Cells

2020 ◽  
Author(s):  
Noah Bissonnette ◽  
Keun Ah Ryu ◽  
Tamara Reyes-Robles ◽  
Sharon Wilhelm ◽  
Erik Hett ◽  
...  
Keyword(s):  
Visible Light ◽  
Chemical Biology ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Live Cells ◽  
Chemical Transformations ◽  
Cross Coupling Reaction ◽  
Visible Light Driven ◽  
Visible Light Photocatalytic

<p>Despite the growing utilization of visible light photochemistry in both chemistry and biology, a general low-heat photoreactor for use across these different disciplines does not exist. Herein, we describe the design and utilization of a standardized photoreactor for visible light driven activation and photocatalytic chemical transformations. Using this single benchtop photoreactor, we perform photoredox reactions across multiple visible light wavelengths, a high throughput photocatalytic cross coupling reaction, and <i>in vitro</i> labeling of proteins and live cells. Given the success of this reactor in all tested applications, we envision that this multi-use photoreactor will be widely used in biology, chemical biology, and medicinal chemistry settings.</p>

Visible-light-activated copper(i) catalyzed oxidative Csp–Csp cross-coupling reaction: efficient synthesis of unsymmetrical conjugated diynes without ligands and base

2016 ◽  
Vol 18 (16) ◽  
pp. 4526-4530 ◽  
Author(s):  
Arunachalam Sagadevan ◽  
Ping-Chiang Lyu ◽  
Kuo Chu Hwang
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Terminal Alkynes ◽  
Efficient Synthesis ◽  
Cross Coupling Reaction ◽  
Conjugated Diynes

An efficient and eco-friendly approach to Csp–Csp cross-coupling of terminal alkynes for the construction of unsymmetrical conjugated diynes via a visible-light-induced CuCl catalysed process at room temperature is described.

Visible-light-mediated dehydrogenative cross-coupling between terminal alkynes and aldehydes by employing a supramolecular polymeric ensemble of PBI derivative

2018 ◽  
Vol 42 (2) ◽  
pp. 822-826 ◽  
Author(s):  
Meenal Kataria ◽  
Harnimarta Deol ◽  
Gurpreet Singh ◽  
Manoj Kumar ◽  
Vandana Bhalla
Keyword(s):  
Visible Light ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Supramolecular Polymer ◽  
Terminal Alkynes ◽  
Zno Nps ◽  
Cross Coupling Reaction

A supramolecular polymer of PBI derivative and ZnO NPs exhibits remarkable efficiency in direct dehydrogenative cross-coupling reaction for the synthesis of ynones under photocatalytic conditions.

Visible light-driven oxidative coupling of dibenzylamine and substituted anilines with a 2D WSe2 nanomesh material

Nanoscale ◽  
2020 ◽  
Vol 12 (42) ◽  
pp. 21869-21878
Author(s):  
Kejie Chai ◽  
Yifeng Shi ◽  
Yanqiong Wang ◽  
Peijie Zou ◽  
Qingrong Yuan ◽  
...  
Keyword(s):  
Visible Light ◽  
Oxidative Coupling ◽  
Coupling Reaction ◽  
Crystal Layer ◽  
Substituted Anilines ◽  
High Exposure ◽  
Oxidative Coupling Reaction ◽  
Visible Light Driven

A visible light-driven oxidative coupling reaction catalyzed using a 2D WSe2 nanomesh with extremely high exposure of crystal layer edges.

Oxygen-mediated formation of MoSx-doped hollow carbon dots for visible light-driven photocatalysis

2016 ◽  
Vol 4 (38) ◽  
pp. 14796-14803 ◽  
Author(s):  
Jung Hyun Park ◽  
Faizan Raza ◽  
Su-Ji Jeon ◽  
DaBin Yim ◽  
Hye-In Kim ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Carbon Dots ◽  
Room Temperature ◽  
Coupling Reaction ◽  
Visible Light Driven ◽  
Hollow Carbon ◽  
Amine Coupling

MoSx-doped hollow carbon dots exhibit outstanding photocatalytic activity in the aerobic oxidative amine coupling reaction at room temperature.

Visible-light-driven copper-catalyzed aerobic oxidative cascade cyclization of N-tosylhydrazones and terminal alkynes: regioselective synthesis of 3-arylcoumarins

2019 ◽  
Vol 55 (35) ◽  
pp. 5151-5154 ◽  
Author(s):  
Ayyakkannu Ragupathi ◽  
Arunachalam Sagadevan ◽  
Vaibhav Pramod Charpe ◽  
Chun-Cheng Lin ◽  
Jih-Ru Hwu ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Regioselective Synthesis ◽  
Terminal Alkynes ◽  
Cascade Cyclization ◽  
Visible Light Driven

An intuitive visible-light-driven copper-catalyzed process can accomplish regioselective functionalized 3-arylcoumarins via oxidative annulation of simple N-tosylhydrazones with terminal alkynes under O2 (1 atm.) at room temperature.

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