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Reposted by Indrajit Ghosh

ChemistryKoenig @chemistrykoenig.bsky.social · 7h

Cross-coupling of unprotected bromoanilines with thiol nucleophiles: the acidic environment suppresses the formation of polythiolates, increasing the active nickel species and minimizing inner filter effects during #photocatalysis #ChemSky
@indrajitghosh85.bsky.social
doi.org/10.1002/adsc...

Photoredox/Nickel Dual Catalytic C(sp2)S Cross‐coupling of Bromoanilines Enabled by Mineral Acids

Mineral acids promote nickel-catalyzed C(sp2)<span class='icomoon'></span>S cross-coupling of bromoanilines and related amine-containing electrophiles with thiols by protonating free amines, thereby facilitating oxidative addit...

doi.org

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Indrajit Ghosh @indrajitghosh85.bsky.social · 7d

🌐 Our research group is now on Bluesky!
Follow us to stay updated on our latest projects, publications, team activities, and collaboration opportunities.
@ghoshresearchgroup.bsky.social

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Reposted by Indrajit Ghosh

ChemistryKoenig @chemistrykoenig.bsky.social · 15d

Interested in vinyl halide chemistry?
Then use our new strategy to simplify your reactions!
Thanks to all involved!
@angewandtechemie.bsky.social
@indrajitghosh85.bsky.social
#ChemSky #photocatalysis #Nickel

doi.org/10.1002/anie...

Generalizing Vinyl Halide Cross‐Coupling Reactions with Photoredox and Photoredox/Nickel Dual Catalysis

A general strategy has been developed for predictable and robust vinyl halide cross-coupling reactions. This approach demonstrates broad applicability across seven distinct bond-forming transformatio...

doi.org

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Indrajit Ghosh @indrajitghosh85.bsky.social · 17d

🔬 Our recent work on the direct synthesis of functionalized indanones from simple aromatic aldehydes and terminal alkynes has now been published in The Journal of Organic Chemistry. @chemistrykoenig.bsky.social
pubs.acs.org/doi/10.1021/...

Photo-Catalyzed Synthesis of Indanones from Aromatic Aldehydes and Terminal Alkynes

Indanones are key structural motifs in pharmaceuticals and bioactive natural products, making their efficient synthesis a subject of continued interest. Conventional methods typically rely on transiti...

pubs.acs.org

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Indrajit Ghosh @indrajitghosh85.bsky.social · Sep 5

First group picture with my amazing students!

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Indrajit Ghosh @indrajitghosh85.bsky.social · Sep 2

🌐 We’re online!
We’re happy to announce that our research group website is now live! Visit us to stay updated on our latest research projects, publications, team activities, and collaboration opportunities.
sites.google.com/view/ghosh-r...

The Ghosh Research Group

Welcome to our website We are a young team working at the Materials & Environment Laboratory (MEL) at the VSB - Technical University of Ostrava. Our research lies at the interface of materials science...

sites.google.com

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Reposted by Indrajit Ghosh

cv-lab-sec.bsky.social @cv-lab-sec.bsky.social · Aug 31

Sllimplify your cross-coupling reactions and use this tool for constructing complex molecules! @angewandtechemie.bsky.social

Indrajit Ghosh @indrajitghosh85.bsky.social · Aug 31

Our work on a general vinyl halide cross-coupling method is now published in ACIE! It enables seven different C–X (S, Se, C, B, P, N, O) bond-forming reactions with various vinyl halides under predictable and scalable conditions. @chemistrykoenig.bsky.social onlinelibrary.wiley.com/doi/10.1002/...

Generalizing Vinyl Halide Cross‐Coupling Reactions with Photoredox and Photoredox/Nickel Dual Catalysis

A general strategy has been developed for predictable and robust vinyl halide cross-coupling reactions. This approach demonstrates broad applicability across seven distinct bond-forming transformatio....

onlinelibrary.wiley.com

1 1

Indrajit Ghosh @indrajitghosh85.bsky.social · Aug 31

Our work on a general vinyl halide cross-coupling method is now published in ACIE! It enables seven different C–X (S, Se, C, B, P, N, O) bond-forming reactions with various vinyl halides under predictable and scalable conditions. @chemistrykoenig.bsky.social onlinelibrary.wiley.com/doi/10.1002/...

Generalizing Vinyl Halide Cross‐Coupling Reactions with Photoredox and Photoredox/Nickel Dual Catalysis

A general strategy has been developed for predictable and robust vinyl halide cross-coupling reactions. This approach demonstrates broad applicability across seven distinct bond-forming transformatio....

onlinelibrary.wiley.com

4

Reposted by Indrajit Ghosh

ChemistryKoenig @chemistrykoenig.bsky.social · Apr 9

Have a look at our photoacid system tailored for small-molecule organocatalysis! Photo-promoted proton release efficiently enables Friedel–Crafts alkylation. Congrats to Armaz, Dana and @indrajitghosh85.bsky.social @chemcomm.rsc.org 🧪 #Chemsky #photocatalysis

doi.org/10.1039/D5CC...

Merocyanine-based photoacids as recyclable catalysts in visible-light-driven transformations

Visible light-driven proton transfer is crucial in nature and catalysis. Here, we report that protic merocyanine-based photoswitches act as efficient and recyclable homogeneous Brønsted acid catalysts...

doi.org

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Reposted by Indrajit Ghosh

ChemistryKoenig @chemistrykoenig.bsky.social · Mar 18

A step-by-step protocol of the synthesis of ethyl 4-((3-ethoxy-3-oxopropyl)thio)benzoate, building on the AD-Hoc principle we reported in Nature.
Congratulations to Florence and Indra
@indrajitghosh85.bsky.social
Thanks to the Dixon Group!
#photocatalysis #ChemSky 🧪
www.orgsyn.org/demo.aspx?pr...

Organic Syntheses Procedure v102p0128

www.orgsyn.org

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Reposted by Indrajit Ghosh

ChemistryKoenig @chemistrykoenig.bsky.social · Feb 27

Our collaboration with the Benaglia group is effective in aqueous media, facilitating the functionalization of biomolecules. The photochemical reaction is scalable under continuous flow conditions, making it suitable for large-scale applications.
#ChemSky #photocatalysis
doi.org/10.1002/chem...

Visible‐Light Photoredox Catalytic Direct N‐(Het)Arylation of Lactams

Lactam rings can be introduced to a diverse range of arenes and heteroarenes employing our mild and efficient photoredox method. The N-(het)arylation of lactams also works in aqueous media, allowing ...

doi.org

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Reposted by Indrajit Ghosh

ChemistryKoenig @chemistrykoenig.bsky.social · Feb 27

A great addition to the toolbox of chromophores:
A methodology for achieving complex chemical transformations across a wide range of redox potentials
Congratulations to Lea, Indra and Nuernberger group
#ChemSky #photocatalysis
doi.org/10.1002/chem...

Quinones as Multifunctional Scaffolds for Oxidative, Reductive, and HAT Photocatalysis

Photoredox catalysis, which enables both electron and hydrogen atom transfer, has become a powerful tool for activating chemical bonds and synthesizing complex molecules under mild conditions. Typica...

doi.org

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Reposted by Indrajit Ghosh

ChemistryKoenig @chemistrykoenig.bsky.social · Jan 16

Tert-butylamine as a labile ligand and base enables cross-coupling reactions with various nucleophile classes. A great collaboration of Jonas with the Sigman lab and Gschwind group
#ChemSky #ChemCollabs #photocatalysis

doi.org/10.1021/acsc...

Cross-Coupling Reactions with Nickel, Visible Light, and tert-Butylamine as a Bifunctional Additive

Transition metal catalysis is crucial for the synthesis of complex molecules, with ligands and bases playing a pivotal role in optimizing cross-coupling reactions. Despite advancements in ligand desig...

doi.org

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