scholarly journals Front Cover Picture: Visible-Light-Promoted Redox-Neutral Cyclopropanation Reactions of α-Substituted Vinylphosphonates and Other Michael Acceptors with Chloromethyl Silicate as Methylene Transfer Reagent (Adv. Synth. Catal. 23/2018)

2018 ◽  
Vol 360 (23) ◽  
pp. 4457-4457 ◽  
Author(s):  
Ting Guo ◽  
Li Zhang ◽  
Xiaobo Liu ◽  
Yewen Fang ◽  
Xiaoping Jin ◽  
...  
Keyword(s):  
Visible Light ◽  
Front Cover ◽  
Michael Acceptors

scholarly journals Front Cover: Visible‐Light‐Induced Cleavage of C−S Bonds in Thioacetals and Thioketals with Iodine as a Photocatalyst (ChemPhotoChem 2/2020)

ChemPhotoChem ◽  
2020 ◽  
Vol 4 (2) ◽  
pp. 98-98
Author(s):  
Matthias Krumb ◽  
Lisa Marie Kammer ◽  
Robert Forster ◽  
Caroline Grundke ◽  
Till Opatz
Keyword(s):  
Visible Light ◽  
Front Cover

Anionic Cyclometallated platinum(II) Tetrazolato Complexes as Viable Photoredox Catalysts

2018 ◽  
Author(s):  
Anna Maria Ranieri ◽  
Liam Burt ◽  
Stefano Stagni ◽  
Stefano Zacchini ◽  
Brian Skelton ◽  
...  
Keyword(s):  
Solid State ◽  
Visible Light ◽  
Room Temperature ◽  
Functional Group ◽  
Photophysical Properties ◽  
General Structure ◽  
No Emission ◽  
Michael Acceptors ◽  
Catalyzed Reactions

The synthesis, characterization, photophysical and photocatalytic studies of anionic platinum(II) tetrazolato complexes, with the general structure [TBA][Pt(CNC)TzR], are reported, where CNC<sup>2-</sup>represents a doubly cyclometalated 2,4,6-triphenylpyridine, TzR<sup>- </sup>is an anionic 5-substituted tetrazolato ligand (with a variable R functional group) and TBA<sup>+ </sup>is the tetrabutylammonium countercation. The complexes were prepared by substitution of the DMSO ligand in [Pt(CNC)(DMSO)] with the corresponding tetrazolato ligand. No emission from the platinum(II) complexes was detected at room temperature in solution, but the photophysical properties could be assessed in the solid state, where all the complexes display emission bands attributed to aggregates. The platinum(II) complexes were found to facilitate a range of fundamental classes of visible-light-mediated photoredox-catalyzed reactions, including α‑amino C–H functionalization processes, such as Povarov-type reactions and the addition of α-amino C–H bonds across Michael acceptors, in addition to ATRA chemistry, and a hydrodeiodination. With the exception of the hydrodeiodination process, the best Pt(II) catalysts provided turnover numbers of 150–175 in each of these transformations.

Visible Light Photoredox Catalysis: Generation and Addition of N-Aryltetrahydroisoquinoline-Derived α-Amino Radicals to Michael Acceptors

2012 ◽  
Vol 14 (3) ◽  
pp. 672-675 ◽  
Author(s):  
Paul Kohls ◽  
Deepak Jadhav ◽  
Ganesh Pandey ◽  
Oliver Reiser
Keyword(s):  
Visible Light ◽  
Photoredox Catalysis ◽  
Michael Acceptors

scholarly journals Front Cover: Polymer‐Based Module for NAD + Regeneration with Visible Light (ChemBioChem 20/2019)

ChemBioChem ◽  
2019 ◽  
Vol 20 (20) ◽  
pp. 2529-2529
Author(s):  
Beatriz C. Ma ◽  
Lucas Caire da Silva ◽  
Seong‐Min Jo ◽  
Frederik R. Wurm ◽  
Markus B. Bannwarth ◽  
...  
Keyword(s):  
Visible Light ◽  
Front Cover

scholarly journals Silyl-mediated photoredox-catalyzed Giese reaction: addition of non-activated alkyl bromides

2018 ◽  
Vol 9 (32) ◽  
pp. 6639-6646 ◽  
Author(s):  
Abdellatif ElMarrouni ◽  
Casey B. Ritts ◽  
Jaume Balsells
Keyword(s):  
Visible Light ◽  
Hdac Inhibitor ◽  
Addition Reaction ◽  
Conjugate Addition ◽  
Photoredox Catalysis ◽  
Unsaturated Esters ◽  
Alkyl Bromides ◽  
Michael Acceptors

The development of a conjugate addition reaction of non-activated alkyl bromides to Michael acceptors under visible-light photoredox catalysis is disclosed. A diverse set of alkyl bromides was successfully added to α,β-unsaturated esters and amides. This transformation allowed access to a key intermediate of Vorinostat®, an HDAC inhibitor used to fight cancer and HIV.

scholarly journals Front Cover: Synthesis of Chiral Tetrahydrofurans and Pyrrolidines by Visible-Light-Mediated Deoxygenation (Eur. J. Org. Chem. 15/2017)

2017 ◽  
Vol 2017 (15) ◽  
pp. 1978-1978
Author(s):  
Daniel Rackl ◽  
Viktor Kais ◽  
Eugen Lutsker ◽  
Oliver Reiser
Keyword(s):  
Visible Light ◽  
Front Cover
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