Visible-Light-Promoted Synthesis of Pyrrolidinone Derivatives via Rose Bengal as a Photoredox Catalyst and Their Photophysical Studies

2021 ◽  
Author(s):  
Arup Dutta ◽  
Mostofa Ataur Rohman ◽  
Ridaphun Nongrum ◽  
Aiborlang Thongni ◽  
Sivaprasad Mitra ◽  
...  
Keyword(s):  
Visible Light ◽  
Rose Bengal ◽  
Radical Cyclization ◽  
Cyclization Reaction ◽  
Photoredox Catalysis ◽  
Blue Led ◽  
Metal Free ◽  
Photophysical Studies ◽  
Reaction Profile ◽  
Led Irradiation

An intramolecular radical cyclization reaction towards the synthesis of pyrrolidinone derivatives via metal free photoredox catalysis under blue LED irradiation has been reported. Synthetic efficiency, green reaction profile, easy isolation...

Metal-free, visible-light-promoted oxidative radical cyclization of N-biarylglycine esters: one-pot construction of phenanthridine-6-carboxylates in water

2019 ◽  
Vol 21 (16) ◽  
pp. 4406-4411 ◽  
Author(s):  
Palani Natarajan ◽  
Deachen Chuskit ◽  
Priya Priya
Keyword(s):  
Visible Light ◽  
Intramolecular Cyclization ◽  
Radical Cyclization ◽  
Cyclization Reaction ◽  
Ambient Conditions ◽  
One Pot ◽  
Light Blue ◽  
Metal Free ◽  
Air Atmosphere ◽  
Oxidative Radical Cyclization

A metal-free, visible-light (blue LED: hν = 425 ± 15 nm) photoredox-catalyzed intramolecular cyclization reaction of N-biarylglycine esters to phenanthridine-6-carboxylates in water under an open air atmosphere at ambient conditions has been developed.

Regioselective C3-H Trifluoromethylation of 2H-Indazole Under Transition-Metal-Free Photoredox Catalysis

2019 ◽  
Author(s):  
Arumugavel Murugan ◽  
Venkata Nagarjuna Babu ◽  
Nagaraj Sabarinathan ◽  
Sharada Duddu. S
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Practical Approach ◽  
Hypervalent Iodine ◽  
Radical Mechanism ◽  
Photoredox Catalysis ◽  
Metal Free

Here we report a visible-light-promoted metal-free regioselective C3-H trifluoromehtylation reaction that proceeds via radical mechanism and which supported by control experiments. The combination of photoredox catalysis and hypervalent iodine reagent provides a practical approach for the present trifluoromethylation reaction and synthesis of a library of trifluoromethylated indazoles.

Phthalide synthesis through dehydrogenated lactonization of the C(sp3)–H bond by photoredox catalysis

2021 ◽  
Author(s):  
Hui Liu ◽  
Chao Liu ◽  
Shanyi Chen ◽  
Qihong Lai ◽  
Yulin Lin ◽  
...  
Keyword(s):  
Visible Light ◽  
Efficient Method ◽  
Room Temperature ◽  
Photoredox Catalysis ◽  
Metal Free

An efficient method for the direct oxidative lactonization of the C(sp3)–H bonds of benzyl via visible-light-induced photoredox catalysis. The metal-free protocol delivers diverse phthalides using O2 as the sole terminal oxidant at room temperature.

scholarly journals Trifluoromethylation of Disubstituted Morpholines by Metal-Free Visible Light Photoredox Catalysis

2016 ◽  
Vol 28 (10) ◽  
pp. 2159-2163 ◽  
Author(s):  
Vishal Srivastava ◽  
Pravin K. Singh ◽  
Praveen P. Singh
Keyword(s):  
Visible Light ◽  
Photoredox Catalysis ◽  
Metal Free

scholarly journals Inside Cover: Blue LED Irradiation of Iodonium Ylides Gives Diradical Intermediates for Efficient Metal‐free Cyclopropanation with Alkenes (Angew. Chem. Int. Ed. 47/2019)

2019 ◽  
Vol 58 (47) ◽  
pp. 16700-16700
Author(s):  
Tristan Chidley ◽  
Islam Jameel ◽  
Shafa Rizwan ◽  
Philippe A. Peixoto ◽  
Laurent Pouységu ◽  
...  
Keyword(s):  
Blue Led ◽  
Metal Free ◽  
Iodonium Ylides ◽  
Led Irradiation

Metal-free photocatalytic trifluoromethylative pyridylation of unactivated alkenes

2018 ◽  
Vol 20 (22) ◽  
pp. 5209-5214 ◽  
Author(s):  
Yu-Tao He ◽  
Dahye Kang ◽  
Inwon Kim ◽  
Sungwoo Hong
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Photoredox Catalysis ◽  
Metal Free

An efficient, transition metal-free trifluoromethylative pyridylation of unactivated alkenes was achieved by visible-light-induced photoredox catalysis.

Visible light active CdS nanorods: one-pot synthesis of aldonitrones

2016 ◽  
Vol 40 (11) ◽  
pp. 9257-9262 ◽  
Author(s):  
Moosa Ramdar ◽  
Foad Kazemi ◽  
Babak Kaboudin ◽  
Zahra Taran ◽  
Adel Partovi
Keyword(s):  
Visible Light ◽  
One Pot ◽  
Blue Led ◽  
One Pot Synthesis ◽  
Cds Nanorods ◽  
Visible Light Active ◽  
The One ◽  
Led Irradiation

A new CdS nanorod was synthesized and it was used in the one-pot synthesis of aldonitrones under blue LED irradiation.

Metal-free desilylative C–C bond formation by visible-light photoredox catalysis

2019 ◽  
Vol 55 (20) ◽  
pp. 2980-2983 ◽  
Author(s):  
Mustafa Uygur ◽  
Tobias Danelzik ◽  
Olga García Mancheño
Keyword(s):  
Visible Light ◽  
Bond Formation ◽  
Photoredox Catalysis ◽  
Metal Free

A novel metal-free desilylative C–C bond formation from simple organosilanes by visible-light acridinium photoredox catalysis is presented.

scholarly journals Blue LED Irradiation of Iodonium Ylides Gives Diradical Intermediates for Efficient Metal‐free Cyclopropanation with Alkenes

2019 ◽  
Vol 131 (47) ◽  
pp. 17115-17121 ◽  
Author(s):  
Tristan Chidley ◽  
Islam Jameel ◽  
Shafa Rizwan ◽  
Philippe A. Peixoto ◽  
Laurent Pouységu ◽  
...  
Keyword(s):  
Blue Led ◽  
Metal Free ◽  
Iodonium Ylides ◽  
Led Irradiation
Sign in / Sign up

Export Citation Format

Share Document