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2024

59. A. Behnke, A. Eitzinger, Y. He, P. W. Antoni, A. R. Ofial,* M. M. Hansmann*
2-Methylene-1,2-dihydropyridines (2-pyNHOs): Highly Nucleophilic Enamines
Eur. J. Org. Chem. 2024, asap.
DOI: 10.1002/ejoc.202400373
selected as VIP paper; Invited contribution to a special collection "physical organic chemistry"

58. I. Haug, J. Reitz, C. Ziane, M. R. Buchmeister, M. M. Hansmann*, S. Naumann*
Mesoionic N-Heterocyclic Olefins as Initiators for the Lewis Pair Polymerization of Epoxides
Macromol. Rapid Commun. 2024, 2300716 (early view).
DOI: doi/10.1002/marc.202300716

57. S. C. Sau, M. Schmitz, C. Burdenski, M. Baumert, P. W. Antoni, C. Kerzig,* M. M. Hansmann*
Dicationic Acridinium/Carbene Hybrids as Strongly Oxidizing Photocatalysts
J. Am. Chem. Soc. 2024146, 3416–3426
DOI: 10.1021/jacs.3c12766
(preprint: ChemRxiv DOI: 10.26434/chemrxiv-2023-qjwlc)

 

56. Q. Sun, A. Eitzinger, R. Esken, P. W. Antoni, R. J. Mayer,* A. R. Ofial,* M. M. Hansmann*
Pyridinium-Derived Mesoionic N-Heterocyclic Olefins (py-mNHOs)
Angew. Chem. Int. Ed. 2024, 63, e202318283.
DOI: 10.1002/anie.202318283
Angew. Chem. 2024, 136, e202318283.
DOI: 10.1002/ange.202318283

2023

55. M. Baumert, V. Le, P.-H. Su, Y. Akae, D. Bresser*, P. Théato*, M. M. Hansmann*
From Squaric Acid Amides (SQAs) to Quinoxaline-Based SQAs-Evolution of a Redox-Active Cathode Material for Organic Polymer Batteries
J. Am. Chem. Soc. 2023, 145, 23334–23345.
DOI: 10.1021/jacs.3c09153

54. I. Berg, L. Schio, J. Reitz, E. Molteni, L. Lahav, C. G. Bolaños, A. Goldoni, C. Grazioli, G. Fratesi, M. M. Hansmann, L. Floreano, E. Gross*
Self-Assembled Monolayers of N-Heterocyclic Olefins on Au (111)
Angew. Chem. Int. Ed. 2023, 62, e202311832. (hot paper)
DOI: 10.1002/anie.202311832
Angew. Chem. 2023, 135, e202311832. (hot paper)
DOI: 10.1002/ange.202311832

53. A. Eitzinger, J. Reitz, P. W. Antoni, H. Mayr, A. R. Ofial,* Max M. Hansmann*
Pushing the Upper Limit of Nucleophilicity Scales by Mesoionic N-Heterocyclic Olefins
Angew. Chem. Int. Ed. 2023, 62, e202309790 (hot paper)
DOI: 10.1002/anie.202309790
Angew. Chem. 2023, 135, e202309790 (hot paper)
DOI: 10.1002/ange.202309790

52. M. M. Hansmann*
Diazoalkenes – From an Elusive Intermediate to a Stable Substance Class in Organic Chemistry
Angew. Chem. Int. Ed. 2023, 62, e202304574
DOI: 10.1002/anie.202304574
Angew. Chem. 2023, 135, e202304574
DOI: 10.1002/ange.202304574

51. J. Reitz, P. W. Antoni, J. J. Holstein, M. M. Hansmann*
Room-Temperature-Stable Diazoalkenes by Diazo Transfer from Azides: Pyridine-Derived Diazoalkenes
Angew. Chem. Int. Ed. 2023, 62, e202301486
DOI: 10.1002/anie.202301486
Angew. Chem. 2023, 135, e202301486
DOI: 10.1002/ange.202301486

50. M. M. Hansmann*
Transition Metal-Free Activation of Carbon Monoxide: Ketenyl Anions by PPh3/CO Exchange (Highlight)
Angew. Chem. Int. Ed. 2023, 62, e202301826
DOI: 10.1002/anie.202301826
Angew. Chem. 2023, 135, e202301826
DOI: 10.1002/ange.202301826

2022

49. P. W. Antoni, C. Golz, M. M. Hansmann*
Organic Four-Electron Redox Systems Based on Bipyridine and Phenanthroline Carbene Architectures
Angew. Chem. Int. Ed. 2022, 61, e202203064.
DOI: 10.1002/anie.202203064
Angew. Chem. 2022, 134, e202203064
DOI: 10.1002/ange.202203064

2021

48. Y. Kutin, J. Reitz, P. W. Antoni, A. Savitsky, D. A. Pantazis*, M. Kasanmascheff*, M. M. Hansmann*
Characterization of a Triplet Vinylidene
J. Am. Chem. Soc. 2021, 143, 21410-21415.
DOI: 10.1021/jacs.1c11062

47. P. W. Antoni, J. Reitz, M. M. Hansmann*
N2/CO Exchange at a Vinylidene Carbon Center: Stable Alkylidene Ketenes and Alkylidene Thioketenes from 1,2,3-Triazole Derived Diazoalkenes
J. Am. Chem. Soc. 2021, 143, 12878–12885.
DOI: 10.1021/jacs.1c06906.

Highlighted in "JACS Spotlights" J. Am. Chem. Soc. 2021, 143, 12420–12421.
DOI: 10.1021/jacs.1c08248

46. P. W. Antoni, C. Golz, J. J. Holstein, D. A. Pantazis, M. M. Hansmann*
Isolation and reactivity of an elusive diazoalkene
Nat. Chem. 202113, 587–593.
DOI: 10.1038/s41557-021-00675-5.

Highlighted in “Notizen aus der Chemie” Nachr. Chem. 2021, 69 (Juli), 48.

Highlighted in „Trendberichte 2021: Anorganische Chemie“ M. Fischer, D. Heift, Nachr. Chem. 2022, 70 (Feb.), 40-51.

Highlighted in Nat. Chem. 2021, 13, 1030-1032 (DOI: 10.1038/s41557-021-00811-1)

Highlighted in press release of TU Dortmund

Highlighted in the press release of the Federal Ministry of Education and Research (BMBF)

Highlighted in inf.news

Featured in Science 2021, 372, 1163

2020

45. M. M. Hansmann*, P. W. Antoni, H. Pesch
Stable Mesoionic N‐Heterocyclic Olefins (mNHOs)
Angew. Chem. Int. Ed. 2020, 59, 5782-5787.
(DOI: 10.1002/anie.201914571)
Angew. Chem. 2020, 132, 5831-5836.
(DOI: 10.1002/ange.201914571)

Highlighted in „Trendberichte 2020: Anorganische Chemie“ C. Hering-Junghans, C. Sindlinger, Nachr. Chem. 2021, 69, 52-66.

44. J. Messelberger, A. Grünwald, S. J. Goodner, F. Zeilinger, P. Pinter, M. E. Miehlich, F. W. Heinemann, M. M. Hansmann, D. Munz*
Aromaticity and Sterics Control Whether a Cationic Olefin Radical is Resistant to Disproportionation
Chem. Sci. 2020, 11, 4138-4149.
(DOI: 10.1039/D0SC00699H)

43. T. Ullrich, P. Pinter, J. Messelberger, P. Haines, R. Kaur, M. M. Hansmann*, D. Munz*, D.M. Guldi*
Singlet Fission in Carbene Derived Diradicaloids
Angew. Chem. Int. Ed. 2020, 59, 7906-7914.
(DOI: 10.1002/anie.202001286)
Angew. Chem. 2020, 132, 7980-7988.
(DOI: 10.1002/ange.202001286)

42. J. L. Peltier, E. Tomás-Mendivil, D. R. Tolentino, M. M. Hansmann, R. Jazzar, G. Bertrand*
Realizing Metal-Free Carbene-Catalyzed Carbonylation Reactions with CO
J. Am. Chem. Soc. 2020, 142, 18336-18340.
DOI: 10.1021/jacs.0c09938

2019

41. M. Gosh, H. H. Cramer, S. Dechert, S. Demeshko, M. John, M. M. Hansmann, S. Ye*, F. Meyer*
A μ-Phosphido Diiron Dumbbell in Multiple Oxidation States
Angew. Chem. Int. Ed. 2019, 58, 14349–14356.
(DOI: 10.1002/anie.201908213)
Angew. Chem. 2019, 131, 14487–14494.
(DOI: 10.1002/ange.201908213)

40. P. W. Antoni, T. Bruckhoff, M. M. Hansmann*
Organic Redox-Systems Based on Pyridinium-Carbene Hybrids
J. Am. Chem. Soc. 2019, 141, 9701–9711.
(DOI: 10.1021/jacs.9b04249)

2018

39. P. W. Antoni, M. M. Hansmann*
Pyrylenes: A New Class of Tunable, Redox-Switchable, Photoexcitable Pyrylium-Carbene Hybrids with Three Stable Redox-States
J. Am. Chem. Soc. 2018, 140, 14823–14835.
(DOI: 10.1021/jacs.8b08545)

38. J. Messelberger, A. Grünwald, P. Pinter, M. M. Hansmann, D. Munz*
Carbene derived diradicaloids – building blocks for singlet fission?
Chem. Sci. 2018, 9, 6107-6117.
(DOI: 10.1039/C8SC01999A)

37. M. M. Hansmann*
Synthesis of Azaphosphinines by Directed Inverse Electron Demand Hetero‐Diels‐Alder Reactions with Na(OCP)
Chem. Eur. J. 2018, 24, 11573-11577.
(DOI: 10.1002/chem.201802173)

36. A. Hinz, M. M. Hansmann, G. Bertrand*, J. M. Goicoechea*
Intercepting a Transient Phosphino-Arsinidene
Chem. Eur. J. 201824, 9514-9519. (DOI: 10.1002/chem.201802175)

35. M. M. Hansmann, M. Melaimi, D. Munz, G. Bertrand*
A Modular Approach to Kekulé Diradicaloids Derived from Cyclic (Alkyl)(amino)carbenes
J. Am. Chem. Soc. 2018140, 2546-2554. (DOI: 10.1021/jacs.7b11183)

34. M. M. Hansmann, M. Melaimi, G. Bertrand*
Organic Mixed Valence Compounds Derived from Cyclic (Alkyl)(amino)carbenes
J. Am. Chem. Soc. 2018140, 2206-2213. (DOI: 10.1021/jacs.7b11184)

2017

33. M. M. Hansmann, M. Melaimi, G. Bertrand*
Crystalline Monomeric Allenyl/Propargyl Radical
J. Am. Chem. Soc. 2017139, 15620-15623. (DOI: 10.1021/jacs.7b09622)

32. E. Tomás-Mendivil, M. M. Hansmann, C. M. Weinstein, R. Jazzar, M. Melaimi, G. Bertrand*
Bicyclic (Alkyl)(amino)carbenes (BICAACs): Stable Carbenes more Ambiphilic than CAACs
J. Am. Chem. Soc. 2017139, 7753-7756. (DOI: 10.1021/jacs.7b04640)

31. M. M. Hansmann, D. A. Ruiz, L. Liu, R. Jazzar, G. Bertrand*
(Phosphanyl)phosphaketenes as Building Blocks for Novel Phosphorus Heterocycles
Chem. Sci. 20178, 3720-3725. (DOI: 10.1039/C7SC00300E)

30. S. Arndt, M. M. Hansmann, M. Rudolph, F. Rominger, A. S. K. Hashmi*
Direct Access to π-Extended Phosphindolium Salts by Simple Proton-Induced Cyclization of (o-Alkynylphenyl)-phosphanes
Chem. Eur. J. 201723, 5429-5433. DOI: 10.1002/chem.201700889)

29. S. Tšupova, M. M. Hansmann, M. Rudolph, F. Rominger, A. S. K. Hashmi*
Gold-Catalysed Formal Cyclisation/Dimerization of Thiophene-Tethered Diynes
Chem. Eur. J. 201723, 5716-5721. (DOI: 10.1002/chem.201700061)

28. S. Arndt, M. M. Hansmann*, P. Motloch, M. Rudolph, F. Rominger, A. S. K. Hashmi*
Intramolecular anti-Phosphinoauration of Alkynes: An FLP-Motivated Approach to Stable Aurated Phosphindolium Complexes
Chem. Eur. J. 201723, 2542-2547. (DOI: 10.1002/chem.201605914)

2016

27. M. M. Hansmann, G. Bertrand*
Transition-Metal-like Behavior of Main Group Elements: Ligand Exchange at a Phosphinidene
J. Am. Chem. Soc. 2016138, 15885-15888. (DOI: 10.1021/jacs.6b11496)

26. G. Kleinhans, M. M. Hansmann, G. Guisado-Barrios, D. C. Liles, G. Bertrand, D. I. Bezuidenhout*
Nucleophilic T-shaped (LXL)Au(I)-pincer complexes: Protonation and Alkylation
J. Am. Chem. Soc. 2016138, 15873-15876. (DOI: 10.1021/jacs.6b11359)
Highlighted in ACS Spotlight: J. Am. Chem. Soc. 2016138, 16567–16567.

25. S. Tšupova, M. M. Hansmann, M. Rudolph, F. Rominger, A. S. K. Hashmi*
New pathways for the Dual Gold Catalyzed Cyclization of Diynes
Chem. Eur. J. 201622, 16286-16291. (DOI: 10.1002/chem.201602873)

24. L. C. Wilkins, J. R. Lawson, P. Wieneke, F. Rominger, A. S. K. Hashmi, M. M. Hansmann, R. L. Melen*
The Propargyl Rearrangement to Functionalised Allyl- Boron and Borocation Compounds
Chem. Eur. J. 201622, 14618–14624. (DOI: 10.1002/chem.201602719)

23. M. M. Hansmann, R. Jazzar, G. Bertrand*
Singlet (Phosphino)phosphinidenes are Electrophilic
J. Am. Chem. Soc. 2016138, 8356-8359. (DOI: 10.1021/jacs.6b04232)

22. M. M. Hansmann, A. López-Andarias, E. Rettenmeier, C. Egler-Lucas, F. Rominger, A. S. K. Hashmi,* C. Romero-Nieto*
B(C6F5)3: A Lewis acid that brings the light to the solid state
Angew. Chem. Int. Ed. 201655, 1196-1199. (DOI: 10.1002/anie.201508461)
Erzeugung von Festkörperlumineszenz durch Koordination der Lewis-Säure B(C6F5)3 an nicht-emittierende Aldehyde
Angew. Chem. 2016128, 1212-1216. (DOI: 10.1002/ange.201508461)
(selected as hot paper); Highlighted in “Cutting-Edge Chemistry“ by the ACS.

21. L. C. Wilkins, H. B. Hamilton, B. M. Kariuki, A. S. K. Hashmi, M. M. Hansmann, R. L. Melen*
Lewis acid-base 1,2-addition reactions: Synthesis of pyrylium borates from en-ynoate precursors.
Dalton Trans. 201645, 5929-5932. (DOI: 10.1039/C5DT03340C

2015

20. M. M. Hansmann*, R. L. Melen, M. Rudolph, F. Rominger, H. Wadepohl, D. W. Stephan*, A. S. K. Hashmi*
Cyclopropanation / Carboboration Reactions of Enynes with B(C6F5)3
J. Am. Chem. Soc. 2015137, 15469-15477. (DOI: 10.1021/jacs.5b09311)

19. L. C. Wilkins, P. Wieneke, P. D. Newman, B. M. Kariuki, F. Rominger, A. S. K. Hashmi, M. M. Hansmann*, R. L. Melen*
Pathways to functionalized heterocycles: The propargyl rearrangement using B(C6F5)3
Organometallics 201534, 5298-5309. (DOI: 10.1021/acs.organomet.5b00753)

18. E. Rettenmeier, M. M. Hansmann, A. Ahrens, K. Rübenacker, T. Saboo, J. Massholder, C. Meier, M. Rudolph, F. Rominger, A. S. K. Hashmi*
Insights into the Gold-Catalyzed Propargyl Ester Rearrangement/ Tandem Cyclization Sequence: Radical versus Gold Catalysis — Myers–Saito- versus Schmittel-Type Cyclization
Chem. Eur. J. 201521, 14401-14409. (DOI: 10.1002/chem.201501725)

17. R. L. Melen,* L. C. Wilkins, B. M. Kariuki, H. Wadepohl, L. H. Gade, A. S. K. Hashmi, D. W. Stephan, M. M. Hansmann*
Diverging Pathways in the Activation of Allenes with Lewis Acids and Bases: Addition, 1,2-Carboboration, and Cyclization
Organometallics 201534, 4127-4137. (DOI: 10.1021/acs.organomet.5b00546)

2014

16. M. M. Hansmann*, F. Rominger, M. P. Boone, D. W. Stephan*, A. S. K. Hashmi*
Reactivity of Organogold Compounds with B(C6F5)3 – A Gold Boron Transmetalation via σ-B/π-Au Species
Organometallics 201433, 4461-4470. (DOI: 10.1021/om5006885)

15. M. M. Hansmann, R. L. Melen, F. Rominger, A. S. K. Hashmi*, D. W. Stephan*
B(C6F5)3 Promoted Cyclisation of Internal Propargyl Esters: Structural Characterisation of 1,3-Dioxolium Compounds
Chem. Commun. 201450, 7243-7245. (DOI: 10.1039/C4CC01370K) (selected as hot article)

14. T. Wang, S. Shi, M. M. Hansmann, E. Rettenmeier, M. Rudolph, A. S. K. Hashmi*
Synthesis of Highly Substituted 3-Formyl Furans via Gold(I)-Catalyzed Oxidation / 1,2-Alkynyl Migration / Cyclization Cascade
Angew. Chem. Int. Ed. 201453, 3715-3719. (DOI: 10.1002/anie.201310146)
Synthese hochsubstituierter 3-Formylfurane über eine Kaskade aus Gold(I)-katalysierter Oxidation, 1,2-Alkinylwanderung und Cyclisierung
Angew. Chem. 2014126, 3789-3793. (DOI: 10.1002/ange.201310146)
Classified as highly cited paper by Elsevier

13. M. M. Hansmann, R. L. Melen, F. Rominger, A. S. K. Hashmi*, D. W. Stephan*
Activation of Alkynes with B(C6F5)3 - Boron Allylation Reagents Derived from Propargyl Esters
J. Am. Chem. Soc. 2014136, 777-782. (DOI: 10.1021/ja4110842)

12. M. M. Hansmann*, S. Tsupova, M. Rudolph, F. Rominger, A. S. K. Hashmi*
Gold-catalysed Cyclisation of Diynes: Controlling the Mode of 5-endo vs. 6-endo Cyclisation – An Experimental and Theoretical Case Study Utilizing Diethynylthiophenes
Chem. Eur. J. 201420, 2215-2223. (DOI: 10.1002/chem.201302967)

2013

11. M. M. Hansmann, M. Pernpointner*, R. Döpp, A. S. K. Hashmi*
A Theoretical DFT-based and an Experimental Study of the Transmetalation Step in Au/Pd Mediated Cross-Coupling Reactions
Chem. Eur. J. 201319, 15290-15303. (DOI: 10.1002/chem.201301840)

10. W. Yang, Y. Yu, T. Zhang, M. M. Hansmann, D. Pflästerer, A. S. K. Hashmi*
Gold-Catalyzed Highly Diastereoselective Synthesis of Functionalized 3,4-Disubstituted Butyrolactams via Phosphatyloxy or Carbonate Double Migrations
Adv. Synth. Catal. 2013335, 2037-2043. (DOI: 10.1002/adsc.201300158)
Highlighted in SynFacts: Synfacts 20139, 1086.

9. R. L. Melen†, M. M. Hansmann†, A. J. Lough, A. S. K. Hashmi, D. W. Stephan*
Cyclisation versus 1,1-Carboboration: Reactions of B(C6F5)3 with Propargylamides
Chem. Eur. J. 201319, 11928-11938. (DOI: 10.1002/chem.201301899) († equal contribution)

8. M. M. Hansmann, A. S. K. Hashmi*, M. Lautens*
Gold meets Rhodium: Tandem One-Pot Synthesis of β-Disubstituted Ketones via Meyer-Schuster Rearrangement and Asymmetric 1,4-Addition
Org. Lett. 201315, 3226-3229. (DOI: 10.1021/ol4011739)
Highlighted in SynFacts: Synfacts 20139, 1087.
Highlighted on www.organic-chemistry.org

7. M. M. Hansmann*, M. Rudolph, F. Rominger, A. S. K. Hashmi*
Mechanistic switch in dual gold catalysis of diynes: C(sp3)-H activation through bifurcation – vinylidene versus carbene pathways
Angew. Chem. Int. Ed. 201352, 2593-2598. (DOI: 10.1002/anie.201208777)
Mechanistisches Umschalten bei der dualen Goldkatalyse von Diinen: C(sp3)-H-Aktivierung über Bifurkation – Vinyliden- versus Carbenreaktionswege
Angew. Chem. 2013125, 2653-2659. (DOI: 10.1002/ange.201208777)
Classified as highly cited paper by Elsevier (> 100 citations)

6. M. M. Hansmann*, F. Rominger, A. S. K. Hashmi*
Gold-Allenylidenes – An experimental and theoretical study
Chem. Sci. 20134, 1552-1559. (DOI: 10.1039/C3SC22227F)

5. A. S. K. Hashmi*, W. Yang, Y. Yu, M. M. Hansmann, M. Rudolph, F. Rominger
Gold-catalyzed formal 1,6-acyloxy migration leading to 3,4-disubstituted pyrrolidin-2-ones
Angew. Chem. Int. Ed. 201352, 1329-1332. (DOI: 10.1002/anie.201207287)
Goldkatalysierte formale 1,6-Acyloxywanderung unter Bildung von 3,4-disubstituierten Pyrrolidin-2-onen
Angew. Chem. 2013125, 1368-1371. (DOI: 10.1002/ange.201207287)
Highlighted in SynFacts: Synfacts 20139, 414.

2012

4. B. M. Trost*, D. A. Thaisrivongs, M. M. Hansmann
Tandem Palladium(0)- and Palladium(II)-catalyzed allylic alkylation through complementary redox cycles
Angew. Chem. Int. Ed. 201251, 11522-11526. (DOI: 10.1002/anie.201204251)
Angew. Chem. 2012124, 11690-11694. (DOI: 10.1002/ange.201204251)

3. B. M. Trost*, M. M. Hansmann, D. A. Thaisrivongs
Palladium-catalyzed alkylation of 1,4-dienes by C–H activation
Angew. Chem. Int. Ed. 201251, 4950-4953. (DOI: 10.1002/anie.201200601)
Angew. Chem. 2012124, 5034-5037. (DOI: 10.1002/ange.201200601)

2011

2. A. S. K. Hashmi*, M. Pernpointner, M. M. Hansmann
Theoretical insights into the superior activity of gold catalysts and reactions of organogold intermediates with electrophiles
Faraday Discuss. 2011152, 179-184. (DOI: 10.1039/C1FD00029B)

1. M. M. Hansmann, R. L. Melen, D. S. Wright*
Group 13 BN dehydrocoupling reagents, similar to transition metal catalysts but with unique reactivity
Chem. Sci. 20112, 1554-1559. (DOI: 10.1039/C1SC00154J)

Patents

1. Novel compounds exhibiting photopysical properties upon formation of Lewis acid-base adducts using non-chelating boranes, method for producing the same and devices including the same.
M. M. Hansmann, A. S. K. Hashmi, C. Romero-Nieto, A. López-Andarias, E. Rettenmeier, C. Egler-Lucas
Patent registration WO 2017/016653 A1; PCT/EP2016/001254.

Non-Peer Reviewed Articles

M. M. Hansmann*
Blickpunkt Nachwuchs: Redoxsysteme und neue stabile Verbindungsklassen
Nachrichten aus der Chemie, 2022, 70, 80-81
DOI: 10.1002/nadc.20224125418