Visible-light-initiated Catalyst-free Oxidative Cleavage of Triaryl-Substituted Alkenes C=C Bonds under Ambient Conditions

2021 ◽  
Author(s):  
Wenjing Li ◽  
Shun Li ◽  
Lihua Luo ◽  
Yichen Ge ◽  
Jiaqi Xu ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Ambient Air ◽  
Oxidative Cleavage ◽  
Ambient Conditions ◽  
Blue Led ◽  
Catalyst Free

The catalyst-free oxidative cleavage of (Z)-triaryl-substituted alkenes bearing pyridyl motif with ambient air under irradiation of blue LED at room temperature has been developed. The reaction was facile and scalable,...

A green and clean pathway: one pot, multicomponent, and visible light assisted synthesis of pyrano[2,3-c]pyrazoles under catalyst-free and solvent-free conditions

2017 ◽  
Vol 41 (19) ◽  
pp. 11148-11154 ◽  
Author(s):  
Bhartendu Pati Tripathi ◽  
Anu Mishra ◽  
Pratibha Rai ◽  
Yogesh Kumar Pandey ◽  
Madhulika Srivastava ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Solvent Free ◽  
One Pot ◽  
Catalyst Free ◽  
Solvent Free Conditions

Visible light mediated, an eco-friendlier synthetic protocol for dihydropyrano[2,3-c]pyrazoles via catalyst-free and solvent-free conditions at room temperature.

scholarly journals Visible light-mediated photocatalytic oxidative cleavage of activated alkynes via hydroamination: a direct approach to oxamates

RSC Advances ◽  
2020 ◽  
Vol 10 (21) ◽  
pp. 12599-12603 ◽  
Author(s):  
Narenderreddy Katta ◽  
Mamata Ojha ◽  
Arumugavel Murugan ◽  
Sagar Arepally ◽  
Duddu S. Sharada
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Room Temperature ◽  
Oxidative Cleavage ◽  
Direct Approach ◽  
Light Irradiation ◽  
Activated Alkynes

The direct oxidative cleavage of activated alkynes via hydroamination has been described using organic photocatalyst under visible-light irradiation at room temperature.

scholarly journals Visible-Light-Induced Oxidative Cleavage of C-C Triple Bond via Hydroamination: Direct Synthesis of Oxamates from Amines and Activated Alkynes

2019 ◽  
Author(s):  
Sharada Duddu. S ◽  
Sagar Arepally ◽  
Arumugavel Murugan ◽  
Narenderreddy Katta ◽  
Mamata Ojha
Keyword(s):  
Visible Light ◽  
Triple Bond ◽  
Room Temperature ◽  
Direct Synthesis ◽  
Oxidative Cleavage ◽  
Organic Dye ◽  
Reaction Conditions ◽  
Radical Coupling ◽  
Activated Alkynes ◽  
Key Features

<p>The direct oxidative cleavage of activated alkynes <i>via</i> hydroamination has been described using organic photocatalyst under visible-light irradiation at room temperature. In this reaction, the single electron oxidation of an insitu formed enamines undergo radical coupling with oxidant which finally delivers the oxamates. The key features of this photocatalytic reaction are the mild reaction conditions, metal-free organic dye as photocatalyst, TBHP plays dual role as “O” source and for the regeneration of photocatalyst. <br></p>

Catalyst-Free Room-Temperature Self-Healing Polymer Networks Based on Dynamic Covalent Quinone Methide-Secondary Amine Chemistry

2021 ◽  
Author(s):  
Yuanxing Zhang ◽  
Ying Wu ◽  
Jiayi Li ◽  
Ke Zhang
Keyword(s):  
Secondary Amine ◽  
Michael Addition ◽  
Room Temperature ◽  
Polymer Networks ◽  
Quinone Methide ◽  
Self Healing ◽  
Ambient Conditions ◽  
Catalyst Free ◽  
External Stimuli

An aza-Michael addition between 2,6-di-t-butyl-7-phenyl-p-quinone methide and secondary amine was demonstrated to hold the dynamic covalent reaction property under ambient conditions requiring no external stimuli. Based on this dynamic covalent...

A visible-light responsive metal–organic framework as an eco-friendly photocatalyst under ambient air at room temperature

2020 ◽  
Vol 7 (19) ◽  
pp. 3541-3547 ◽  
Author(s):  
Yanhong Liu ◽  
Chen Lin ◽  
Bowen Li ◽  
Jian Wang ◽  
Man Wang ◽  
...  
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Metal Organic Framework ◽  
Ambient Air ◽  
Metal Organic ◽  
Organic Framework

A 2′,7′-dichlorofluorescein-based MOF as a reusable photocatalyst for the synthesis of 1,3-oxathiolane-2-imines from styrenes and NH4SCN by utilizing visible light and air as the eco-sustainable and cheapest reagents.

scholarly journals Visible-Light-Induced Oxidative Cleavage of C-C Triple Bond via Hydroamination: Direct Synthesis of Oxamates from Amines and Activated Alkynes

2018 ◽  
Author(s):  
Sharada Duddu. S ◽  
Sagar Arepally ◽  
Arumugavel Murugan ◽  
Mamata Ojha
Keyword(s):  
Visible Light ◽  
Triple Bond ◽  
Room Temperature ◽  
Direct Synthesis ◽  
Oxidative Cleavage ◽  
Organic Dye ◽  
Reaction Conditions ◽  
Radical Coupling ◽  
Activated Alkynes ◽  
Key Features

<p>The direct oxidative cleavage of activated alkynes <i>via</i> hydroamination has been described using organic photocatalyst under visible-light irradiation at room temperature. In this reaction, the single electron oxidation of an insitu formed enamines undergo radical coupling with oxidant which finally delivers the oxamates. The key features of this photocatalytic reaction are the mild reaction conditions, metal-free organic dye as photocatalyst, TBHP plays dual role as “O” source and for the regeneration of photocatalyst. <br></p>

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