Visible Light Copper Photoredox-Catalyzed Aerobic Oxidative Coupling of Phenols and Terminal Alkynes: Regioselective Synthesis of Functionalized Ketones via C≡C Triple Bond Cleavage

An efficient and eco-friendly approach to aerobic oxidative C–N coupling of 2-aminopyridine with terminal alkynes for preparation of biologically important pyridyl-amides via CC triple bond cleavage at room temperature.

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Visible-light induced copper(i)-catalysed denitrogenative oxidative coupling of hydrazinylpyridines with terminal alkynes

Green Chemistry ◽

10.1039/c8gc01180j ◽

2018 ◽

Vol 20 (21) ◽

pp. 4859-4864 ◽

Cited By ~ 12

Author(s):

Vaibhav Pramod Charpe ◽

Aniket A. Hande ◽

Arunachalam Sagadevan ◽

Kuo Chu Hwang

Keyword(s):

Visible Light ◽

Oxidative Coupling ◽

Room Temperature ◽

Low Energy ◽

Terminal Alkynes ◽

Green Approach

An effective and green approach to oxidative Csp2–Csp coupling of 2-hydrazinylpyridine with terminal alkynes to form 2-(alkyl/arylethynyl) pyridine via N2 elimination through the cleavage of a non-activated C–N bond under low energy visible light at room temperature (42 examples).

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ChemInform Abstract: Visible Light-Induced Iodine-Catalyzed Transformation of Terminal Alkynes to Primary Amides via CC Bond Cleavage under Aqueous Conditions.

ChemInform ◽

10.1002/chin.201625078 ◽

2016 ◽

Vol 47 (25) ◽

Author(s):

Shashikant U. Dighe ◽

Sanjay Batra

Keyword(s):

Visible Light ◽

Bond Cleavage ◽

Terminal Alkynes ◽

Aqueous Conditions

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

Chemical Communications ◽

10.1039/c9cc01801h ◽

2019 ◽

Vol 55 (35) ◽

pp. 5151-5154 ◽

Cited By ~ 7

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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Copper-catalysed Csp3–Csp cross-couplings between cyclobutanone oxime esters and terminal alkynes induced by visible light

Chemical Communications ◽

10.1039/d0cc00988a ◽

2020 ◽

Vol 56 (34) ◽

pp. 4676-4679 ◽

Cited By ~ 8

Author(s):

Binlin Zhao ◽

Yixiao Wu ◽

Yu Yuan ◽

Zhuangzhi Shi

Keyword(s):

Visible Light ◽

Bond Cleavage ◽

Terminal Alkynes

A novel transformation for the construction of Csp3–Csp bonds was achieved via a photo-induced copper-catalysed C–C bond cleavage.

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Visible Light-Induced Iodine-Catalyzed Transformation of Terminal Alkynes to Primary AmidesviaCC Bond Cleavage under Aqueous Conditions

Advanced Synthesis & Catalysis ◽

10.1002/adsc.201500906 ◽

2016 ◽

Vol 358 (3) ◽

pp. 500-505 ◽

Cited By ~ 17

Author(s):

Shashikant U. Dighe ◽

Sanjay Batra

Keyword(s):

Visible Light ◽

Bond Cleavage ◽

Terminal Alkynes ◽

Aqueous Conditions

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Black TiO2 nanoparticles with efficient photocatalytic activity under visible light at low temperature: regioselective C–N bond cleavage toward the synthesis of thioureas, sulfonamides, and propargylamines

Catalysis Science & Technology ◽

10.1039/d0cy01256d ◽

2020 ◽

Vol 10 (20) ◽

pp. 6825-6839 ◽

Cited By ~ 1

Author(s):

Mehdi Koohgard ◽

Mona Hosseini-Sarvari

Keyword(s):

Photocatalytic Activity ◽

Low Temperature ◽

Visible Light ◽

Tio2 Nanoparticles ◽

Bond Cleavage ◽

Regioselective Synthesis ◽

Tertiary Amines ◽

Black Tio2

Several different colored forms of TiO2 were prepared through the easy treatment of white TiO2 and NaBH4 as a safe hydrogen source. Then, tertiary amines were harnessed toward the regioselective synthesis of three prominent scaffolds.

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