@ritter_lab

Research in the Ritter group focuses on the development of novel reaction chemistry.

 MPI KoFo, Mülheim an der Ruhr
Joined August 2017
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We are happy to present our newest publication in @ScienceMagazine about safer aryldiazonium chemistry! Nitrate is reduced to generate aryldiazoniums as fleeting intermediates for the direct conversion of anilines and aminoheterocycles to arylhalides. science.org/doi/10.1126/scie…

Nitrate reduction enables safer aryldiazonium chemistry

Aryldiazonium salts remain a staple in organic synthesis and are still prepared largely in accord with the protocol developed in the 19th century. Because of the favorable reactivity that often...

science.org
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In @J_A_C_S, we show the extension of our nitrate-reduction-based diazotization strategy to aliphatic amines! Consecutive nitrate reduction by substoichiometric hydroquinone is key and enables in-situ diazotization followed by (pseudo)halogenation! 🔓 tinyurl.com/36es3e3f
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Now online: Modular synthesis of 3,3-diaryloxetanes go.​nature.​com/4dmzRak 🧪
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In @NatureSynthesis, we present a new method for the modular assembly of 3,3'-diaryloxetanes! Key: Tetrafluoropyridyl esters generated from aryl halides and 3-oxetanone balance stability with reactivity towards subsequent Ni-catalyzed cross-coupling! nature.com/articles/s44160-0…
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Check out @cenmag's highlight of our strategy for accessing metal carbenes! cen.acs.org/synthesis/chemis…

Chemists find a safer way to create carbenes

Alkylthianthrenium salts can be shaken up in a ball mill on a decagram scale

cen.acs.org
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In @Nature, we show that alkyl thianthrenium salts can be used as metal carbene precursors with a great safety profile! Iron- and copper-catalysed cyclopropanations (even on 100 mmol scale!), bond insertions, rearrangements — alkyl–TT salts do them all! nature.com/articles/s41586-0…
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Ritter Lab retweeted
Fabio Juliá@FabioJulia7Sep 2
Buscamos un/a estudiante de doctorado (4 años, contrato FPI) para trabajar en métodos fotocatalíticos para síntesis orgánica en nuestro grupo (fjulialab.com). Trabajos previos: Science 2026, 391, 84–89 J. Am. Chem. Soc. 2026, 148, 30553–30561 +Info aquí 👇
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Ritter Sport – Kofo Cup 2026🥇
🤖 Made with AI
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Our alkene alkylation strategy has been featured in @cenmag! cen.acs.org/synthesis/alkene…

Directly decorating double bonds

Alkylation reaction gives chemists options that ‘we’ve been missing for decades’

cen.acs.org
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Our work on decarboxylative alkylation of alkene is now online in @nature
Ritter Lab@ritter_labApr 29
In @Nature, we show that redox-active esters can be transformed into alkyl zinc species useful for transmetalation, providing a solution to rate matching in XEC reactions! First application: alkylation of alkenes via polar decarboxylative cross-coupling! nature.com/articles/s41586-0…
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In @Nature, we show that redox-active esters can be transformed into alkyl zinc species useful for transmetalation, providing a solution to rate matching in XEC reactions! First application: alkylation of alkenes via polar decarboxylative cross-coupling! nature.com/articles/s41586-0…
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Glad that our Org Synth procedure is finally published! 🚀
Ritter Lab@ritter_labApr 20
Nitrate reduction enables Sandmeyer reactions without sweat on your forehead – even on 20 mmol scale! Check out our detailed protocol in @OrgSynth and join us on the safer side of diazonium chemistry! Thanks to @MaulideLab for reproducing! 🤝 tinyurl.com/2h3earww
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Nitrate reduction enables Sandmeyer reactions without sweat on your forehead – even on 20 mmol scale! Check out our detailed protocol in @OrgSynth and join us on the safer side of diazonium chemistry! Thanks to @MaulideLab for reproducing! 🤝 tinyurl.com/2h3earww
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Bench-stable selenium salts strike again, now in low-energy photoredox catalysis! Our latest @ChemRxiv introduces selenoxanthylium salts as red-light-absorbing organic photocatalysts. chemrxiv.org/doi/full/10.264…
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J. Am. Chem. Soc.@J_A_C_SMar 29
Synthesis of 1,3-Dienes from Alkenes via Alkenyl Thianthrenium Salts | Journal of the American Chemical Society pubs.acs.org/doi/10.1021/jac…

Synthesis of 1,3-Dienes from Alkenes via Alkenyl Thianthrenium Salts

Abstract. Herein, we show the conversion of alkenes into functionalized 1,3-dienes in two steps. First, C–H thianthrenation is used to access a wide pool o

pubs.acs.org
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Alkenyl–TTs are known to react as electrophiles with transition metal catalysts or with organic nucleophiles in the presence of base, but what happens when you combine all three? You can, for instance, make 1,3-dienes! Out now in @J_A_C_S ! 🔓 pubs.acs.org/doi/10.1021/jac…
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Zibo Bai@Zibo_WhiteMar 5
Curious what happens when thianthrenium salts meet light? What are the fundamental advantages of these reagents in photochemistry? Check out our latest Account! @ritter_lab @ACSPublications pubs.acs.org/doi/10.1021/acs…

Thianthrenium Salts in Photochemistry

Conspectus. Thianthrenium (TT) salts have emerged as versatile reagents with utility across transition-metal (TM) catalysis, photochemistry, biocatalysis,

pubs.acs.org
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As part of the new 'Photoredox Catalysis' special issue, we present our account on the use of thianthrenium salts in photochemistry! SET, energy transfer and photoinduced homolytic cleavage – thianthrenium salts can do it all! Open access🔓 pubs.acs.org/doi/10.1021/acs…
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Trifluoromethyl Thianthrenium Salts: From Organic Synthesis to Materials. pubs.acs.org/doi/abs/10.1021…

Trifluoromethyl Thianthrenium Salts: From Organic Synthesis to Materials

Abstract. Trifluoromethyl thianthrenium salts have recently emerged as powerful and versatile reagents in organic chemistry, enabling the direct transfer o

pubs.acs.org
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