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.

Visible-Light-Driven Difluoroacetamidation of Unactive Arenes and Heteroarenes by Direct C–H Functionalization at Room Temperature

2014 ◽  
Vol 16 (22) ◽  
pp. 5842-5845 ◽  
Author(s):  
Lin Wang ◽  
Xiao-Jing Wei ◽  
Wen-Liang Jia ◽  
Jian-Ji Zhong ◽  
Li-Zhu Wu ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Visible Light Driven

Visible light-promoted copper catalyzed regioselective acetamidation of terminal alkynes by arylamines

2020 ◽  
Vol 22 (4) ◽  
pp. 1164-1170 ◽  
Author(s):  
V. Kishore Kumar Pampana ◽  
Arunachalam Sagadevan ◽  
Ayyakkannu Ragupathi ◽  
Kuo Chu Hwang
Keyword(s):  
Visible Light ◽  
Molecular Oxygen ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Light Irradiation ◽  
Terminal Alkynes

Herein, we describe a copper photoredox catalyzed synthesis of acetamide via regioselective C–N coupling of arylamines with terminal alkynes using molecular oxygen (O2) as an oxidant at room temperature under visible light irradiation (47 examples).

Visible-light-driven room-temperature gas sensor based on carbyne nanocrystals

2020 ◽  
Vol 316 ◽  
pp. 128200 ◽  
Author(s):  
Fei Yang ◽  
Zhaoqiang Zheng ◽  
Zhenqiang Lin ◽  
Bing Wang ◽  
Pu Liu ◽  
...  
Keyword(s):  
Visible Light ◽  
Gas Sensor ◽  
Room Temperature ◽  
Visible Light Driven

ChemInform Abstract: Visible-Light-Driven Difluoroacetamidation of Unactive Arenes and Heteroarenes by Direct C-H Functionalization at Room Temperature.

ChemInform ◽  
2015 ◽  
Vol 46 (17) ◽  
pp. no-no
Author(s):  
Lin Wang ◽  
Xiao-Jing Wei ◽  
Wen-Liang Jia ◽  
Jian-Ji Zhong ◽  
Li-Zhu Wu ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Visible Light Driven

Metal free visible light driven oxidation of alcohols to carbonyl derivatives using 3,6-di(pyridin-2-yl)-1,2,4,5-tetrazine (pytz) as catalyst

RSC Advances ◽  
2015 ◽  
Vol 5 (102) ◽  
pp. 84328-84333 ◽  
Author(s):  
Suvendu Samanta ◽  
Papu Biswas
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Light Irradiation ◽  
Metal Free ◽  
Carbonyl Derivatives ◽  
Oxidation Of Alcohols ◽  
Visible Light Driven ◽  
High Yields

A metal-free transformation of alcohols to the corresponding carbonyls in high yields under visible-light irradiation has been achieved at room temperature using di(pyridin-2-yl)-1,2,4,5-tetrazine (pytz) as catalyst.

scholarly journals 2D Palladium Sulphate for Visible‐Light‐Driven Optoelectronic Reversible Gas Sensing at Room Temperature

Small Science ◽  
2021 ◽  
pp. 2100097
Author(s):  
Turki Alkathiri ◽  
Kai Xu ◽  
Bao Yue Zhang ◽  
Muhammad Waqas Khan ◽  
Azmira Jannat ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Gas Sensing ◽  
Visible Light Driven
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