A visible light mediated, metal and oxidant free highly efficient cross dehydrogenative coupling (CDC) reaction between quinoxalin-2(1H)-ones and ethers

2019 ◽  
Vol 43 (19) ◽  
pp. 7403-7408 ◽  
Author(s):  
Kishor D. Mane ◽  
Rohit B. Kamble ◽  
Gurunath Suryavanshi
Keyword(s):  
Visible Light ◽  
Transfer Process ◽  
White Light ◽  
Hydrogen Abstraction ◽  
Cyclic Ethers ◽  
Eosin Y ◽  
Highly Efficient ◽  
Dehydrogenative Coupling ◽  
Reaction Proceeds

The white light mediated, 3C alkylation of quinoxalin-2(1H)-ones via a cross dehydrogenative coupling (CDC) reaction with cyclic ethers using eosin Y as a photocatalyst is described. The reaction proceeds via a hydrogen abstraction and transfer process.

scholarly journals Eosin Y dye-based porous organic polymers for highly efficient heterogeneous photocatalytic dehydrogenative coupling reaction

RSC Advances ◽  
2017 ◽  
Vol 7 (1) ◽  
pp. 408-414 ◽  
Author(s):  
Chang-An Wang ◽  
Yan-Wei Li ◽  
Xue-Li Cheng ◽  
Jian-Ping Zhang ◽  
Yin-Feng Han
Keyword(s):  
Coupling Reaction ◽  
Eosin Y ◽  
Organic Polymers ◽  
Porous Organic Polymers ◽  
Bottom Up ◽  
Highly Efficient ◽  
Dehydrogenative Coupling ◽  
Highly Effective

Eosin Y dye has been successfully embedded into a nanoporous network EY-POPs through a bottom-up strategy. The polymers could be used as highly effective and reusable heterogeneous organo-photocatalyst for the dehydrogenative coupling reaction.

Visible-Light-Promoted Radical Cyclization of N-Arylvinylsulfonamides: Synthesis of CF3/CHF2/CH2CF3-Containing 1,3-Dihydrobenzo[c]isothiazole 2,2-Dioxide Derivatives

Synthesis ◽  
2021 ◽  
Author(s):  
Devaiah Vytla ◽  
Kumargurubaran Kaliyaperumal ◽  
Rajeswari Velayuthaperumal ◽  
Parinita Shaw ◽  
Raj Gautam ◽  
...  
Keyword(s):  
Visible Light ◽  
Radical Cyclization ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Reaction Proceeds ◽  
High Yields

AbstractA photocatalyzed and highly efficient trifluoromethylation of N-arylvinylsulfonamides using commercially available CF3SO2Cl as the trifluoromethyl radical source under blue LEDs is reported. The reaction proceeds through radical cyclization under mild conditions. An investigation of the substrate scope is performed to establish a general, synthetically useful protocol for the synthesis of novel trifluoromethylated 1,3-dihydrobenzo[c]isothiazole 2,2-dioxides in moderate to high yields. This method is also successfully applied for the synthesis of difluoromethylated and trifluoroethylated 1,3-dihydrobenzo[c]isothiazole 2,2-dioxides in good to excellent yields.

Eosin Y-Sensitized Artificial Photosynthesis by Highly Efficient Visible-Light-Driven Regeneration of Nicotinamide Cofactor

ChemBioChem ◽  
2009 ◽  
Vol 10 (10) ◽  
pp. 1621-1624 ◽  
Author(s):  
Sahng Ha Lee ◽  
Dong Heon Nam ◽  
Jae Hong Kim ◽  
Jin-Ook Baeg ◽  
Chan Beum Park
Keyword(s):  
Visible Light ◽  
Artificial Photosynthesis ◽  
Eosin Y ◽  
Highly Efficient ◽  
Visible Light Driven

Highly Efficient Visible-Light-Driven H2 Production via an Eosin Y-Based Metal–Organic Framework

2018 ◽  
Vol 57 (13) ◽  
pp. 7495-7498 ◽  
Author(s):  
Jian Wang ◽  
Yanhong Liu ◽  
Yang Li ◽  
Lingling Xia ◽  
Min Jiang ◽  
...  
Keyword(s):  
Visible Light ◽  
Metal Organic Framework ◽  
H2 Production ◽  
Eosin Y ◽  
Highly Efficient ◽  
Visible Light Driven ◽  
Metal Organic ◽  
Organic Framework

Visible-Light-Triggered Decarboxylative Alkylation of 8-Acylaminoquinoline with N-Hydroxyphthalimide Ester

Synlett ◽  
2020 ◽  
Vol 31 (07) ◽  
pp. 677-682 ◽  
Author(s):  
Bin Sun ◽  
Deyu Li ◽  
Xiaohui Zhuang ◽  
Rui Zhu ◽  
Aertuke Aisha ◽  
...  
Keyword(s):  
Visible Light ◽  
Functional Groups ◽  
Efficient Approach ◽  
Radical Coupling ◽  
Mild Conditions ◽  
Highly Efficient ◽  
Wide Range ◽  
Reaction Proceeds ◽  
Operational Simplicity

A facile protocol for visible-light-induced decarboxylative radical coupling of NHP esters with 8-aminoquinoline amides is reported, affording a highly efficient approach to synthesize a variety of 2-alkylated or 2,4-dialkylated 8-aminoquinoline derivatives. The reaction proceeds smoothly without adding any ligand, and provides the corresponding products containing a wide range of functional groups in moderate to excellent yields. This reaction uses readily available starting materials, and proceeds under mild conditions and with operational simplicity.

scholarly journals Efficient merging of copper and photoredox catalysis for the asymmetric cross-dehydrogenative-coupling of alkynes and tetrahydroisoquinolines

2015 ◽  
Vol 13 (2) ◽  
pp. 447-451 ◽  
Author(s):  
Inna Perepichka ◽  
Soumen Kundu ◽  
Zoë Hearne ◽  
Chao-Jun Li
Keyword(s):  
Visible Light ◽  
Photoredox Catalysis ◽  
Highly Efficient ◽  
Dehydrogenative Coupling ◽  
Catalytic Asymmetric

A highly efficient catalytic asymmetric alkynylation of prochiral CH2 groups in tetrahydroisoquinoline was developed using copper catalyzed cross-dehydrogenative-coupling of sp3 and sp C–H bonds with the assistance of a photocatalyst and visible light.

Visible Light-Promoted Catalytic Ring-Opening Isomerization of 1,2-Disubstituted Cyclopropanols to Linear Ketones

2019 ◽  
Author(s):  
Marharyta V. Laktsevich-Iskryk ◽  
Nastassia A. Varabyeva ◽  
Volha V. Kazlova ◽  
Vladimir N. Zhabinskii ◽  
Vladimir A. Khripach ◽  
...  
Keyword(s):  
Visible Light ◽  
Functional Groups ◽  
Ring Opening ◽  
Radical Intermediates ◽  
Reaction Proceeds

In this article, we report a photocatalytic protocol for the isomerization of 1,2-disubstituted cyclopropanols to linear ketones. The reaction proceeds <i>via</i> radical intermediates and tolerates various functional groups.

Visible Light-Promoted Catalytic Ring-Opening Isomerization of 1,2-Disubstituted Cyclopropanols to Linear Ketones

2019 ◽  
Author(s):  
Marharyta V. Laktsevich-Iskryk ◽  
Nastassia A. Varabyeva ◽  
Volha V. Kazlova ◽  
Vladimir N. Zhabinskii ◽  
Vladimir A. Khripach ◽  
...  
Keyword(s):  
Visible Light ◽  
Functional Groups ◽  
Ring Opening ◽  
Radical Intermediates ◽  
Reaction Proceeds

In this article, we report a photocatalytic protocol for the isomerization of 1,2-disubstituted cyclopropanols to linear ketones. The reaction proceeds <i>via</i> radical intermediates and tolerates various functional groups.

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