Recent advances in catalyst-free photochemical reactions via electron-donor-acceptor (EDA) complex process

2020 ◽  
Vol 61 (8) ◽  
pp. 151506 ◽  
Author(s):  
Yan-qin Yuan ◽  
Swarup Majumder ◽  
Ming-hua Yang ◽  
Sheng-rong Guo
Keyword(s):  
Electron Donor ◽  
Photochemical Reactions ◽  
Catalyst Free ◽  
Recent Advances ◽  
Complex Process ◽  
Donor Acceptor ◽  
Eda Complex

Metal-Free Photoinduced Hydroalkylation Cascade Enabled by an Electron-Donor-Acceptor Complex

2020 ◽  
Author(s):  
José Tiago Menezes Correia ◽  
Gustavo Piva da Silva ◽  
Camila Menezes Kisukuri ◽  
Elias André ◽  
Bruno Pires ◽  
...  
Keyword(s):  
Electron Donor ◽  
Functional Group ◽  
Photoexcited Electron ◽  
One Pot ◽  
Quaternary Centers ◽  
Metal Free ◽  
Acceptor Complex ◽  
Catalyst Free ◽  
Donor Acceptor ◽  
Radical Cascade

A metal- and catalyst-free photoinduced radical cascade hydroalkylation of 1,7-enynes has been disclosed. The process is triggered by a SET event involving a photoexcited electron-donor-aceptor complex between NHPI ester and Hantzsch ester, which decomposes to afford a tertiary radical that is readily trapped by the enyne. <a>The method provides an operationally simple, robust and step-economical approach to the construction of diversely functionalized dihydroquinolinones bearing quaternary-centers. A sequential one-pot hydroalkylation-isomerization approach is also allowed giving access to a family of quinolinones. A wide substrate scope and high functional group tolerance was observed in both approaches</a>.

Electron donor-acceptor (EDA)-complex enabled SF5Cl addition on alkenes and alkynes

2021 ◽  
Vol 243 ◽  
pp. 109734
Author(s):  
Audrey Gilbert ◽  
Mélodie Birepinte ◽  
Jean-François Paquin
Keyword(s):  
Electron Donor ◽  
Donor Acceptor ◽  
Eda Complex

Electron transfer in electron donor-acceptor ensembles containing porphyrins and metalloporphyrins

2002 ◽  
Vol 06 (04) ◽  
pp. 289-295 ◽  
Author(s):  
Dirk M. Guldi ◽  
Shunichi Fukuzumi
Keyword(s):  
Electron Transfer ◽  
Electron Donor ◽  
Transfer Reactions ◽  
Electron Transfer Reactions ◽  
Recent Advances ◽  
Donor Acceptor

Recent advances in electron transfer chemistry of electron donor-acceptor ensembles reported containing porphyrins and metalloporphyrins reported in ICPP-2 are reviewed briefly by focusing on the fundamental aspects of electron transfer reactions.

Recent Advances in the Chemistry of Doubly Activated Cyclopropanes: Synthesis and Reactivity

2019 ◽  
Vol 23 (3) ◽  
pp. 276-312 ◽  
Author(s):  
Purushothaman Gopinath ◽  
Srinivasan Chandrasekaran
Keyword(s):  
Natural Products ◽  
Total Synthesis ◽  
Electron Donor ◽  
Ring Opening ◽  
Dipolar Cycloaddition ◽  
Recent Advances ◽  
Donor Acceptor ◽  
Synthesis Reactions ◽  
Donor Substituent ◽  
Electron Donor Substituent

Diactivated cyclopropanes containing two geminal electron withdrawing groups, commonly called as ‘Doubly Activated Cyclopropanes’ are useful synthons for the synthesis of many interesting natural products and functionalized molecules. These geminal electron withdrawing groups (EWG’s) facilitate the regioselective ring opening of cyclopropanes by polarizing the C-C bond adjacent to it. This polarization also allows them to undergo 1,3 dipolar cycloaddition reactions when substituted with a suitable electron donor substituent at the adjacent carbon (donor-acceptor cyclopropanes) in the presence of suitable dipolarophiles. In this review, we discuss the recent advances in the chemistry of doubly activated cyclopropanes: their synthesis, reactions and applications in total synthesis.

Supramolecular assemblies for electron transfer

2004 ◽  
Vol 08 (07) ◽  
pp. 976-983 ◽  
Author(s):  
Dirk M. Guldi ◽  
Hiroshi Imahori
Keyword(s):  
Electron Transfer ◽  
Energy Transfer ◽  
Electron Donor ◽  
Supramolecular Assemblies ◽  
Transfer Reactions ◽  
Recent Advances ◽  
Donor Acceptor

Recent advances in electron transfer chemistry of supramolecular electron donor-acceptor assemblies – containing porphyrins and metalloporphyrins – in connection with ICPP-3 are reviewed briefly by focusing on aspects of electron and energy transfer reactions.

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