Cover gallery

Chem. Eur. J. 2010, 16 (37)
Chem. Eur. J. 2015, 21 (23)
ChemCatChem 2016, 8 (18)
Eur. J. Org. Chem. 2017 (22)
ChemPhotoChem 2021, 5 (11)
Org. Biomol. Chem. 2023, 21 (21)

List of publications


43. Photoinduced Tandem C-O Bond Reduction / Ketyl Radical Addition Reactions of α-Keto-N,O-Acetals Enabled by Proton-Coupled Electron Transfer
Paul Seefeldt, Luisa Edelmann, Adrian Prudlik, Alexander Villinger, Robert Francke, Malte Brasholz*
ChemPhotoChem 2024, DOI: 10.1002/cptc.202400067. [link]


42. Photoredox-Catalyzed Carbon Radical Generation from α-Keto-N,O-acetals: Synthesis of Functionalized Azepino[1,2-a]indoles and Azepino[1,2-a]furo[3,2-b]indoles
Paul Seefeldt, Alexander Villinger, Malte Brasholz*
Adv. Synth. Catal. 2023, DOI: 10.1002/adsc.202300967. [link]

41. Visible light-induced Iridium(III)-sensitized [2+2] and [3+2] photocycloadditions of 2-cyanochromone with alkenes
Rajesh Dasi, Alexander Villinger, Malte Brasholz*
Org. Biomol. Chem. 2023, DOI: 10.1039/D3OB00862B. [link]

40. Synthesis of azepane-fused pyrano[3,2-b]indoles by Lewis acid-catalysed oxa Diels-Alder reactions
Saikumar Banda, Alexander Villinger, Malte Brasholz*
Org. Biomol. Chem. 2023, DOI: 10.1039/D3OB00234A. [link]


39. Photocatalytic Azetidine Synthesis by Aerobic Dehydrogenative [2 + 2] Cycloadditions of Amines with Alkenes
Rajesh Dasi, Alexander Villinger, Malte Brasholz*
Org. Lett. 2022, DOI: 10.1021/acs.orglett.2c03291. [link]

38. Spirooxindol-1,3-oxazine alkaloids: highly potent and selective antitumor agents evolved from iterative structure optimization
Annika Eichhorst, Malte Gallhof, Alice Voss, Anett Sekora, Leon Eggers, Le Thi Huyen, Christian Junghanss, Hugo Murua Escobar,* Malte Brasholz*
ChemMedChem 2022, DOI: 10.1002/cmdc.202200162. [link]

37. A short total synthesis of (±)-mersicarpine via visible light-induced cascade photooxygenation
Mario Frahm, Alice Voss, Malte Brasholz*
Chem. Commun. 2022, DOI: 10.1039/D2CC01316A. [link]


36. Lewis Acid-Catalyzed Carbofunctionalization of Uncommon C,N-Diacyliminium Ions: Controlling Regio- and Enantioselectivity
Lisa Marie Gronbach, Alice Voss, Mario Frahm, Alexander Villinger, Jonas Bresien, Dirk Michalik, Malte Brasholz*
Org. Lett. 2021, DOI: 10.1021/acs.orglett.1c02857. [link]

35. Photoredox-induced deaminative radical-cationic three-component couplings with N-alkylpyridinium salts and alkenes
Paul Seefeldt, Rajesh Dasi, Alexander Villinger, Malte Brasholz*
ChemPhotoChem 2021, DOI: 10.1002/cptc.202100226. [link]

34. Value-added chemicals from biomass-derived furans: radical functionalisations of 5-chloromethylfurfural (CMF) by metal-free ATRA reactions
Rajesh Dasi, Daniel Schmidhuber, Lisa Marie Gronbach, Julia Rehbein*, Malte Brasholz*
Org. Biomol. Chem. 2021, DOI: 10.1039/d1ob00013f. [link]


33. Photoinduced iodine-mediated tandem dehydrogenative Povarov cyclisation / C−H oxygenation reactions
Eva Schendera, Alexander Villinger, Malte Brasholz*
Org. Biomol. Chem. 2020, DOI: 10.1039/D0OB01494J. [link]

32. Visible light cascade photooxygenation of tetrahydrocarbazoles and cyclohepta[b]indoles: access to C,N‐diacyliminium ions
Mario Frahm, Thorsten von Drathen, Lisa Marie Gronbach, Alice Voss, Felix Lorenz, Jonas Bresien, Alexander Villinger, Frank Hoffmann, Malte Brasholz*
Angew. Chem. Int. Ed. 2020, DOI: 10.1002/anie.202007549. [link]

This article was highlighted in Synfacts:
Photooxygenation of Tetrahydrocarbazoles: Synthesis of Uncommon C,N-Diacyliminium Ion Precursors
Benjamin List, Joyce A. A. Grimm
Synfacts 2020, DOI: 10.1055/s-0040-1706769. [link]

31. Ligand substitution of Ru(II) alkylidenes to Ru(bpy)32+: sequential olefin metathesis / photoredox catalysis
Malte Gallhof, Lukas Kell, Malte Brasholz*
Chem. Eur. J. 2020, 26, 1772-1775. [link]


30. Visible light‐mediated aerobic tandem dehydrogenative Povarov/aromatization reaction: synthesis of isocryptolepines
Eva Schendera, Lisa-Natascha Unkel, Phung Phan Huyen Quyen, Gwen Salkewitz, Frank Hoffmann, Alexander Villinger, Malte Brasholz*
Chem. Eur. J. 2019, DOI: 10.1002/chem.201903921. [link]

This article was highlighted in Synfacts:
Light-Mediated Dehydrogenative Povarov Reaction of Indoles and Benzofurans
Victor Snieckus, Carla E. Brown, Mark Reed
Synfacts 2020, DOI: 10.1055/s-0039-1691700. [link]

29. Photoorganocatalytic aerobic oxidative amine dehydrogenation/super acid-mediated Pictet-Spengler cyclization: synthesis of cis-1,3-diaryl tetrahydroisoquinolines
Lisa-Natascha Unkel, Simon Malcherek, Eva Schendera, Frank Hoffmann, Julia Rehbein,* Malte Brasholz*
Adv. Synth. Catal. 2019, DOI: 10.1002/adsc.201900165. [link]


28. Acridinium Dyes and Quinones in Photocatalysis
Malte Brasholz*
Book chapter in Science of Synthesis, "Photocatalysis in Organic Synthesis", Ed.: B. König, Thieme, Stuttgart 2018, DOI: DOI 10.1055/sos-SD-229-00224.

27. Visible Light Catalytic Photooxygenation of Monoterpene Indole Alkaloids: Access to Spirooxindole-1,3-Oxazines
Thorsten von Drathen, Frank Hoffmann, Malte Brasholz*
Chem. Eur. J. 2018, DOI: 10.1002/chem.201801882. [link]


26. "Super-Reducing" Photocatalysis: Consecutive Energy and Electron Transfers with Polycyclic Aromatic Hydrocarbons
Malte Brasholz*
Angew. Chem. 2017, 129, 10414-10415; [link] Angew. Chem. Int. Ed. 2017, 56, 10280-10281. [link]

25. A Photoredox-Induced Stereoselective Dearomative Radical (4+2)-Cyclization/1,4-Addition Cascade for the Synthesis of Highly Functionalized Hexahydro-1H-carbazoles
Dirk Alpers, Malte Gallhof, Julian Witt, Frank Hoffmann, Malte Brasholz*
Angew. Chem. 2017, 129, 1423-1427; [link] Angew. Chem. Int. Ed. 2017, 56, 1402-1406. [link]

24. Photoredox-Induced Radical 6-exo-trig Cyclizations onto the Indole Nucleus: Aromative versus Dearomative Pathways
Dirk Alpers, Malte Brasholz,* Julia Rehbein*
Eur. J. Org. Chem. 2017, 2186-2193. [link]

23. Phosphoric Acid-Catalyzed 1,2-Rearrangements of 3-Hydroxyindolenines to Indoxyls and 2-Oxindoles: Reagent-Controlled Regioselectivity Enabled by Dual Activation
Eva Schendera, Stephanie Lerch, Thorsten von Drathen, Lisa-Natascha Unkel, Malte Brasholz*
Eur. J. Org. Chem.  2017, 3134-3138. [link]

22. Visible-Light Photolysis of Allyl Zirconocenes: A Photoinduced Three-Component Radical (4+2)-Cyclization-Allylation Reaction
Dirk Alpers, Frank Hoffmann, Malte Brasholz*
Synlett 2017, 919-923. [link]


21. Visible Light Photocatalytic Aerobic Benzylic Csp3-H Oxygenations with the 3DDQ*/tert-Butyl Nitrite Co-catalytic System
Fabian Rusch, Jan-Christian Schober, Malte Brasholz*
ChemCatChem  2016, 8, 2881-2884. [link]

20. Photoassisted Oxidation of Ruthenium(II)-Photocatalysts Ru(bpy)32+ and Ru(bpz)32+ to RuO4: Orthogonal Tandem Photoredox and Oxidation Catalysis
Dirk Alpers, Malte Gallhof, Christian B. W. Stark, Malte Brasholz*
Chem. Commun.  2016, 52, 1025-1028. [link]


19. Iridium(III) Photocatalysis: A Visible-Light-Induced Dearomatizative Tandem (4+2)-Cyclization to Furnish Benzindolizidines
Sandra Mühmel, Dirk Alpers, Frank Hoffmann, Malte Brasholz*
Chem. Eur. J.  2015, 21, 12308-12312. [link]

18. A Visible Light Photocatalytic Cross-Dehydrogenative Coupling/Dehydrogenation/6π-Cyclization/Oxidation Cascade: Synthesis of 12-Nitroindoloisoquinolines from 2-Aryltetrahydroisoquinolines
Fabian Rusch, Lisa-Natascha Unkel, Dirk Alpers, Frank Hoffmann, Malte Brasholz*
Chem. Eur. J.  2015, 21, 8336-8340. [link]


17. Tandem Organocatalysis and Photocatalysis: An Anthraquinone-Catalyzed Indole-C3-Alkylation/Photooxidation/1,2-Shift Sequence
Stephanie Lerch, Lisa-Natascha Unkel, Malte Brasholz*
Angew. Chem.  2014, 126, 6676-6680; [link]Angew. Chem. Int. Ed.  2014, 53, 6558-6562. [link]

16. Ground- and Excited-State Quinones: Perspectives in Organocatalysis and Visible-Light Photocatalysis
Stephanie Lerch, Lisa-Natascha Unkel, Patrick Wienefeld, Malte Brasholz*
Synlett 2014, 25, 2673-2680. [link]


15. Gold(I)-Catalyzed Cyclodehydration Enabled by the Triisopropylsilyl Group: A Synthetically Versatile Methodology
Dmitry L. Usanov, Marina Naodovic, Malte Brasholz, Hisashi Yamamoto*
Helv. Chim. Acta  2012, 95, 1773-1789. [link]


14. An Integrated Flow and Batch-based Approach for the Synthesis of O-Methyl Siphonazole
Marcus Baumann, Ian R. Baxendale, Malte Brasholz, John J. Hayward, Steven V. Ley, Nikzad Nikbin
Synlett 2011, 1375-1380. [link]

13. Nitrile Oxide 1,3-Dipolar Cycloaddition by Dehydration of Nitromethane Derivatives Under Continuous Flow Conditions
Malte Brasholz, Simon Saubern, G. Paul Savage*
Aust. J. Chem. 2011, 64, 1397-1401. [link]

12. Controlled RAFT Polymerization in a Continuous Flow Microreactor
Christian H. Hornung,* Carlos A. Guerrero-Sanchez, Malte Brasholz, Simon Saubern, John Chiefari, Graeme Moad, Ezio Rizzardo, San H. Thang
Org. Proc. Res. Dev. 2011, 15, 593-601. [link]

11. Highly Efficient Dehydration of Carbohydrates to 5-(Chloromethyl)furfural (CMF), 5-(Hydroxymethyl)furfural (HMF) and Levulinic Acid by Biphasic Continuous Flow Processing
Malte Brasholz,* Karin von Känel, Christian H. Hornung, Simon Saubern, John Tsanaktsidis*
Green Chem.2011, 13, 1114-1117. [link]


10. 3-Alkoxy-2,5-dihydrofurans by Gold-Catalyzed Allenyl Cyclizations and Their Transformation into 1,4-Dicarbonyl Compounds, Cyclopentenones and Butenolides
Malte Brasholz, Branislav Dugovič, Hans-Ulrich Reissig*
Synthesis2010, 3855-3864. [link]

9. A Gram-Scale Batch and Flow Total Synthesis of Perhydrohistrionicotoxin
Malte Brasholz, James M. Macdonald, Simon Saubern, John H. Ryan,* Andrew B. Holmes
Chem. Eur. J.2010, 16, 11471-11480. [link]

8. Flow Synthesis of Tricyclic Spiropiperidines as Building Blocks for the Histrionicotoxin Family of Alkaloids
Malte Brasholz,* Brian A. Johnson, James M. Macdonald, Anastasios Polyzos, Simon Saubern, John Tsanaktsidis, Andrew B. Holmes, John H. Ryan
Tetrahedron2010, 66, 6445-6449. [link]


7. Alkoxyallene-Based De Novo Synthesis of Rare Deoxy Sugars: New Routes to L-Cymarose, L-Sarmentose, L-Diginose and L-Oleandrose
Malte Brasholz, Hans-Ulrich Reissig*
Eur. J. Org. Chem.2009, 3595-3604. [link]

6. Sugars, Alkaloids, and Heteroaromatics: Exploring Heterocyclic Chemistry with Alkoxyallenes
Malte Brasholz, Hans-Ulrich Reissig,* Reinhold Zimmer
Acc. Chem. Res. 2009, 42, 45-56. [link]


5. Refined Protocols for the Preparation of 3-Alkoxy-2,5-dihydrofurans, Allylic Oxidation to β-Alkoxybutenolides and Short Synthesis of (±)-Annularin H
Malte Brasholz, Hans-Ulrich Reissig*
Synlett2007, 1294-1298. [link]

4. Rubromycins: Structurally Intriguing, Biologically Valuable, Synthetically Challenging Antitumour Antibiotics
Malte Brasholz, Sebastian Sörgel, Cengiz Azap, Hans-Ulrich Reissig*
Eur. J. Org. Chem. 2007, 3801-3814. [link]

3. Oxidative Cleavage of 3-Alkoxy-2,5-dihydrofurans and its Application to the De Novo Synthesis of Rare Monosaccharides as Exemplified by L-Cymarose
Malte Brasholz, Hans-Ulrich Reissig*
Angew. Chem.2007, 119, 1659-1662; [link]Angew. Chem. Int. Ed.2007, 46, 1634-1637. [link]


2. Towards the Rubromycins: An Efficient Synthesis of a Suitable Isocoumarin Precursor, its Lactam Analogue, and Palladium-Catalyzed Couplings
Malte Brasholz, Xiaosong Luan, Hans-Ulrich Reissig*
Synthesis 2005, 3571-3580. [link]


1. An Expedient and Short Synthesis of a 6-Iodo Isocoumarin Building Block for the Rubromycin Family and its First Palladium-Catalyzed Couplings
Malte Brasholz, Hans-Ulrich Reissig*
Synlett2004, 2736-2738. [link]