1
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Wanner DM, Becker PM, Suhr S, Wannenmacher N, Ziegler S, Herrmann J, Willig F, Gabler J, Jangid K, Schmid J, Hans AC, Frey W, Sarkar B, Kästner J, Peters R. Cooperative Lewis Acid-1,2,3-Triazolium-Aryloxide Catalysis: Pyrazolone Addition to Nitroolefins as Entry to Diaminoamides. Angew Chem Int Ed Engl 2023; 62:e202307317. [PMID: 37358186 DOI: 10.1002/anie.202307317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 06/27/2023]
Abstract
Pyrazolones represent an important structural motif in active pharmaceutical ingredients. Their asymmetric synthesis is thus widely studied. Still, a generally highly enantio- and diastereoselective 1,4-addition to nitroolefins providing products with adjacent stereocenters is elusive. In this article, a new polyfunctional CuII -1,2,3-triazolium-aryloxide catalyst is presented which enables this reaction type with high stereocontrol. DFT studies revealed that the triazolium stabilizes the transition state by hydrogen bonding between C(5)-H and the nitroolefin and verify a cooperative mode of activation. Moreover, they show that the catalyst adopts a rigid chiral cage/pore structure by intramolecular hydrogen bonding, by which stereocontrol is achieved. Control catalyst systems confirm the crucial role of the triazolium, aryloxide and CuII , requiring a sophisticated structural orchestration for high efficiency. The addition products were used to form pyrazolidinones by chemoselective C=N reduction. These heterocycles are shown to be valuable precursors toward β,γ'-diaminoamides by chemoselective nitro and N-N bond reductions. Morphological profiling using the Cell painting assay identified biological activities for the pyrazolidinones and suggest modulation of DNA synthesis as a potential mode of action. One product showed biological similarity to Camptothecin, a lead structure for cancer therapy.
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Affiliation(s)
- Daniel M Wanner
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Patrick M Becker
- Universität Stuttgart, Institut für Theoretische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Simon Suhr
- Universität Stuttgart, Institut für Anorganische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Nick Wannenmacher
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Slava Ziegler
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Strasse 11, 44227, Dortmund, Germany
| | - Justin Herrmann
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Felix Willig
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Julia Gabler
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Khushbu Jangid
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Juliane Schmid
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Andreas C Hans
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Wolfgang Frey
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Biprajit Sarkar
- Universität Stuttgart, Institut für Anorganische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Johannes Kästner
- Universität Stuttgart, Institut für Theoretische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - René Peters
- Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, 70569, Stuttgart, Germany
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2
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Wei R, Gao L, Li G, Tang L, Zhang G, Zheng F, Song H, Li Q, Ban S. Squaramide-catalysed asymmetric Friedel-Crafts alkylation of naphthol and unsaturated pyrazolones. Org Biomol Chem 2021; 19:3370-3373. [PMID: 33899883 DOI: 10.1039/d1ob00347j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The first method for highly efficient asymmetric Michael-type Friedel-Crafts alkylation of naphthol and unsaturated pyrazolones has been accomplished under mild reaction conditions. In the presence of the chiral squaramide catalyst, a wide range of substrates are tolerated in excellent yields (up to 99%) with reasonable enantioselectivities (up to 96% ee).
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Affiliation(s)
- Ran Wei
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
| | - Li Gao
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
| | - Gaihui Li
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
| | - Li Tang
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
| | - Guoshun Zhang
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
| | - Feilang Zheng
- Heping Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi, 046000 China
| | - Heng Song
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China. and College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Qingshan Li
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China. and Shanxi Key laboratory of Chronic Inflammatory Targeted Drugs, Shanxi University of Traditional Chinese Medicine, Jinzhong, Shanxi, 030619, China
| | - Shurong Ban
- School of Pharmacy, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.
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3
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Rani D, Bhargava M, Agarwal J. Asymmetric Michael Addition of Unactivated Ketones with β‐Nitrostyrenes Mediated by Bifunctional L‐Prolinamide Organocatalysts. ChemistrySelect 2020. [DOI: 10.1002/slct.202000136] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dixita Rani
- Department of Chemistry and Center of Advanced Studies Panjab University Chandigarh 160014 India
| | - Meha Bhargava
- Department of Chemistry and Center of Advanced Studies Panjab University Chandigarh 160014 India
| | - Jyoti Agarwal
- Department of Chemistry and Center of Advanced Studies Panjab University Chandigarh 160014 India
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4
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Jung HI, Park JH, Kim DY. Enantioselective Organocatalytic Mannich Reaction and Fluorination Sequence of Pyrazolones to Isatin‐derived Ketimines. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11625] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hye Im Jung
- Department of ChemistrySoonchunhyang University Chungnam South Korea
| | - Jin Hwa Park
- Department of ChemistrySoonchunhyang University Chungnam South Korea
| | - Dae Young Kim
- Department of ChemistrySoonchunhyang University Chungnam South Korea
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5
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Yang M, Zhang M, Wang Z, Tang L, Chen W, Ban S, Li Q. Highly enantioselective Michael addition of pyrazolin-5-ones to nitroolefins catalyzed by cinchona alkaloid derived 4-methylbenzoylthioureas. Chirality 2018; 30:1096-1104. [PMID: 30052289 DOI: 10.1002/chir.23003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 06/19/2018] [Accepted: 06/23/2018] [Indexed: 11/08/2022]
Abstract
Cinchona alkaloid-derived 4-methyl/nitro benzoylthioureas were synthesized, which smoothly catalyzed the asymmetric Michael addition of pyrazolin-5-ones to nitroolefins. The results showed that electronic effects of substituents in the benzene ring of benzoylthioureas have subtle influences on their catalytic abilities and electron donating methyl group is favored than electron withdrawing nitro group. Preliminary Hartree-Fock calculations revealed that in the catalytic cycle, hydrogen bond energies of the complex formed with 4-methylbenzoylthioureas are about 0.19 to 1.56 kcal/mol higher than with the corresponding 4-nitrobenzoylthioureas. 4-Methylbenzoylthioureas were identified as the most effective catalysts that promoted asymmetric Michael addition of pyrazolin-5-ones to nitroolefins to give the S- or R-products with high enantioselectivities.
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Affiliation(s)
- Mengchen Yang
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, PR China
| | - Min Zhang
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, PR China
| | - Zhenyu Wang
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, PR China
| | - Li Tang
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, PR China
| | - Wenbin Chen
- Institute of Elemento-Organic Chemistry, Nankai University, Tianjin, PR China
| | - Shurong Ban
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, PR China.,School of Chinese Materia Medica, Shanxi University of Chinese Medicine, Jinzhong, PR China
| | - Qingshan Li
- School of Pharmaceutical Science, Shanxi Medical University, Taiyuan, PR China.,School of Chinese Materia Medica, Shanxi University of Chinese Medicine, Jinzhong, PR China
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6
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Liu S, Bao X, Wang B. Pyrazolone: a powerful synthon for asymmetric diverse derivatizations. Chem Commun (Camb) 2018; 54:11515-11529. [DOI: 10.1039/c8cc06196c] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This feature article reports recent advances in the asymmetric diverse derivatizations of the pyrazolone scaffold.
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Affiliation(s)
- Siyuan Liu
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Xiaoze Bao
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Baomin Wang
- State Key Laboratory of Fine Chemicals
- School of Pharmaceutical Science and Technology
- Dalian University of Technology
- Dalian 116024
- P. R. China
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