Catalyst-free photoinduced selective oxidative C(sp3)–C(sp3) bond cleavage in arylamines

2021 ◽  
Author(s):  
Jingwei Zhou ◽  
Songping Wang ◽  
Wentao Duan ◽  
Qi Lian ◽  
Wentao Wei
Keyword(s):  
Visible Light ◽  
Visible Light Irradiation ◽  
Bond Cleavage ◽  
Oxidative Cleavage ◽  
Light Irradiation ◽  
Single Bond ◽  
Catalyst Free ◽  
Site Selective

By introducing a polar atom at the γ-position of amine, the site-selective oxidative cleavage of the saturated C–C single bond in arylamines can be easily achieved by simple visible light irradiation with O2 as a benign oxidant and catalyst free.

Catalyst-free photodecarbonylation of ortho-amino benzaldehyde

2020 ◽  
Vol 22 (11) ◽  
pp. 3421-3426
Author(s):  
Jingwei Zhou ◽  
Lamei Li ◽  
Songping Wang ◽  
Ming Yan ◽  
Wentao Wei
Keyword(s):  
Visible Light ◽  
Tertiary Amine ◽  
Visible Light Irradiation ◽  
Aldehyde Group ◽  
Light Irradiation ◽  
Catalyst Free

Decarbonylation is easily achieved with visible light irradiation by introducing a tertiary amine into the ortho-position of the aldehyde group.

scholarly journals Photocatalytic hydrogen evolution by co-catalyst-free TiO2/C bulk heterostructures synthesized under mild conditions

RSC Advances ◽  
2020 ◽  
Vol 10 (21) ◽  
pp. 12519-12534 ◽  
Author(s):  
Claudio Imparato ◽  
Giuseppina Iervolino ◽  
Marzia Fantauzzi ◽  
Can Koral ◽  
Wojciech Macyk ◽  
...  
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Co Catalyst ◽  
Photocatalytic Hydrogen Evolution ◽  
Mild Conditions ◽  
Catalyst Free

Defective TiO2/C bulk heterostructures exhibit visible light photoresponsivity and remarkable H2 evolution rates under both UV and visible light irradiation.

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.

Catalyst-Free Photodriven Reduction of α-Haloketones with Hantzsch Ester

Synthesis ◽  
2018 ◽  
Vol 51 (02) ◽  
pp. 508-515 ◽  
Author(s):  
Yong-Qing Yang ◽  
Zheng Lu
Keyword(s):  
Organic Solvent ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Broad Spectrum ◽  
Light Irradiation ◽  
Aromatic Ketones ◽  
Common Organic Solvent ◽  
Catalyst Free ◽  
Aliphatic Ketones

Catalyst-free dehalogenation of α-haloketones under visible light irradiation is studied. The reactions were carried out in common organic solvent. The outcomes of dechlorination are excellent in yields up to 92%, and it is also applicable to bromides, which give even higher yields. The reaction is tolerable to a broad spectrum of substrates, especially to aromatic ketones, including various aryl and hetaryl groups. There are two examples of aliphatic ketones presented in the paper, although their reactivities are not as high as that of the aromatic ketones.

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