1
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Gutierrez DA, Toth-Williams G, Laconsay CJ, Yasuda M, Fettinger JC, Di Maso MJ, Shaw JT. Desymmetrization of Cyclic Sulfonimidamides by Asymmetric Allylation. Angew Chem Int Ed Engl 2024:e202407114. [PMID: 38719740 DOI: 10.1002/anie.202407114] [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: 04/15/2024] [Indexed: 07/13/2024]
Abstract
Herein we report the first transition metal-catalyzed approach to the enantioenriched synthesis of cyclic sulfonimidamides relying on commercially available palladium catalysts and ligands. High-throughput experimentation (HTE) was employed to identify the optimal catalyst system and solvent. The method is applied to a variety of saturated and unsaturated rings and exhibits the highest selectivity for 2-substituted allyl electrophiles. The products are further elaborated to complex, tricyclic scaffolds. DFT experiments presented herein highlight the key ligand substrate interactions leading to the high levels of enantioselectivity.
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Affiliation(s)
- David A Gutierrez
- Department of Chemistry, University of California, Davis, One Shields Ave., Davis California, 95616, United States
| | - Garrett Toth-Williams
- Department of Chemistry, University of California, Davis, One Shields Ave., Davis California, 95616, United States
| | - Croix J Laconsay
- Department of Chemistry, University of Houston, 3585 Cullen Blvd., Houston Texas, 77004, United States
| | - Michael Yasuda
- Department of Chemistry, University of California, Davis, One Shields Ave., Davis California, 95616, United States
| | - James C Fettinger
- Department of Chemistry, University of California, Davis, One Shields Ave., Davis California, 95616, United States
| | - Michael J Di Maso
- Department of Process Research and Development, Merck & Co., Inc., Rahway, New Jersey, 07065, United States
| | - Jared T Shaw
- Department of Chemistry, University of California, Davis, One Shields Ave., Davis California, 95616, United States
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2
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Salami SA, Safari JB, Smith VJ, Krause RWM. Mechanochemically-Assisted Passerini Reactions: A Practical and Convenient Method for the Synthesis of Novel α-Acyloxycarboxamide Derivatives. ChemistryOpen 2023; 12:e202200268. [PMID: 37198143 PMCID: PMC10191865 DOI: 10.1002/open.202200268] [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: 12/24/2022] [Revised: 04/04/2023] [Indexed: 05/19/2023] Open
Abstract
A carboxylic acid, an aldehyde, and an isonitrile were combined in a single step (Passerini reaction) under mechanochemical activation to produce several α-acyloxycarboxamide derivatives in high to excellent yields within 15 min of milling. Mechanochemistry, when combined with the diversity provided by multicomponent reactions, enables the efficient synthesis of the target compounds, with great atom economy, shorter reaction times, and experimental simplicity. The method allows for the rapid production of a vast library of complex compounds from a limited number of substrates.
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Affiliation(s)
- Sodeeq Aderotimi Salami
- Center for Chemico- and Biomedicinal Research (CCBR) Rhodes UniversityGrahamstown, Makhanda6139South Africa
| | - Justin Bazibuhe Safari
- Center for Chemico- and Biomedicinal Research (CCBR) Rhodes UniversityGrahamstown, Makhanda6139South Africa
| | - Vincent J. Smith
- Center for Chemico- and Biomedicinal Research (CCBR) Rhodes UniversityGrahamstown, Makhanda6139South Africa
| | - Rui W. M. Krause
- Center for Chemico- and Biomedicinal Research (CCBR) Rhodes UniversityGrahamstown, Makhanda6139South Africa
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3
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Amer MM, Hommelsheim R, Schumacher C, Kong D, Bolm C. Electro-mechanochemical approach towards the chloro sulfoximidations of allenes under solvent-free conditions in a ball mill. Faraday Discuss 2023; 241:79-90. [PMID: 36128995 DOI: 10.1039/d2fd00075j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
An electro-mechanochemical protocol for the synthesis of vinylic sulfoximines has been developed. Utilising mechanochemically strained BaTiO3 nanoparticles, the catalytic active system is generated in situ by the reduction of copper(II) chloride. Various combinations of electron-donating and -withdrawing groups are tolerated, and the approach leads to products with difunctionalised double bonds in good to excellent yields. Attempts to add a sulfoximidoyl chloride to an alkyne proved difficult. Additions of a sulfonyl iodide to allenes and alkynes proceeded smoothly in the presence of silica gel without the need for activation by a piezoelectric material.
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Affiliation(s)
- Mostafa M Amer
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany. .,Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt
| | - Renè Hommelsheim
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany.
| | - Christian Schumacher
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany.
| | - Deshen Kong
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany.
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany.
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4
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Zhu B, Li W, Chen H, Wu M, Hu J, Cao H, Liu X. Mechanochemical Synthesis of 1,2,4‐Triazoles via a [3+2] Cycloaddition of Azinium‐N‐imines and Nitriles. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Baofu Zhu
- Guangdong Pharmaceutical University CHINA
| | - Wen Li
- Guangdong Pharmaceutical University CHINA
| | | | - Minjian Wu
- Guangdong Pharmaceutical University CHINA
| | - Jijing Hu
- Guangdong Pharmaceutical University CHINA
| | - Hua Cao
- Guangdong Pharmaceutical University CHINA
| | - Xiang Liu
- Guangdong Pharmaceutical University CHINA
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5
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Xu H, Wang GW. Solvent-Free Mechanosynthesis of Polysubstituted 1,2-Dihydroquinolines from Anilines and Alkyne Esters. J Org Chem 2022; 87:8480-8491. [PMID: 35731690 DOI: 10.1021/acs.joc.2c00605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel one-pot reaction of anilines with acetylenedicarboxylate diesters in the presence of boron trifluoride, iodine, and trifluoroacetic acid or methylsulfonic acid has been developed under solvent-free ball-milling conditions, affording a variety of polysubstituted 1,2-dihydroquinolines bearing multiple ester groups in moderate to excellent yields. The present protocol features mild reaction conditions, short reaction time, and feasibility of large-scale synthesis, providing a facile and practical alternative to 1,2-dihydroquinoline synthesis. Intriguingly, the generated 1,2-dihydroquinolines can be further transformed into quinoline derivatives.
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Affiliation(s)
- Hui Xu
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China.,Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry Application, and School of Chemical and Environmental Engineering, Anhui Polytechnic University, Wuhu 241000, P. R. China
| | - Guan-Wu Wang
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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6
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Terhorst S, Jansen T, Langletz T, Bolm C. Sulfonimidamides by Sequential Mechanochemical Chlorinations and Aminations of Sulfinamides. Org Lett 2022; 24:4109-4113. [PMID: 35658444 DOI: 10.1021/acs.orglett.2c01099] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Here, we report the first mechanochemical synthesis of sulfonimidamides. The one-pot, two-step method requires neither a solvent nor inert conditions. In a mixer mill, sulfinamides are rapidly converted to sulfonimidoyl chlorides by oxidative chlorination with N-chlorosuccinimide (NCS). Subsequent substitutions with amines provides a wide range of diversely substituted sulfonimidamides.
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Affiliation(s)
- Steven Terhorst
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | - Tim Jansen
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | - Tim Langletz
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
| | - Carsten Bolm
- RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, D-52074 Aachen, Germany
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7
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Bhattacharya S, Patel R, Joshi A. The Most Recent Discoveries in Heterocyclic Nanoformulations for Targeted Anticancer Therapy. Mini Rev Med Chem 2022; 22:1735-1751. [PMID: 35114919 DOI: 10.2174/138955752203220202164839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/02/2021] [Accepted: 11/15/2021] [Indexed: 11/22/2022]
Abstract
Every day, new cases of cancer patients whose recovery is delayed by multidrug resistance and chemotherapy side effects are identified, which severely limit treatment options. One of the most recent advances in nanotechnology is the effective usage of nanotechnology as drug carriers for cancer therapy. As a consequence, heterocyclic nanocarriers were put into practice to see whether they could have a better cure with positive results. The potential of a therapeutic agent to meet its desired goal is vital to its success in treating any disease. Heterocyclic moieties are molecules that have a wide variety of chemically therapeutic functions as well as a significant biological activity profile. Heterocyclic nano formulations play an important role in cell physiology and as possible arbitrators for typical biological reactions, making them valuable in cancer research. As a result, experts are working with heterocyclic nanoformulations to discover alternative approaches to treat cancer. Due to their unique physicochemical properties, heterocyclic compounds are real cornerstones in medicinal chemistry and promising compounds for the future drug delivery system. This review briefly explores the therapeutic relevance of heterocyclic compounds in cancer treatment, the various nanoformulations, and actively describes heterocyclic magnetic nano catalysts and heterocyclic moiety, as well as their mode of action, which have favorable anti - cancer effects.
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Affiliation(s)
- Sankha Bhattacharya
- Department of Pharmaceutics, School of Pharmacy & Technology Management, SVKM\'S NMIMS Deemed-to-be University, Shirpur, Maharashtra 425405, India
| | - Rajat Patel
- Department of Pharmaceutics, School of Pharmacy & Technology Management, SVKM\'S NMIMS Deemed-to-be University, Shirpur, Maharashtra 425405, India
| | - Aalind Joshi
- Department of Pharmaceutics, School of Pharmacy & Technology Management, SVKM\'S NMIMS Deemed-to-be University, Shirpur, Maharashtra 425405, India
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8
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Efficacy of Selenourea Organocatalysts in Asymmetric Michael Reactions under Standard and Solvent-Free Conditions. Molecules 2021; 26:molecules26237303. [PMID: 34885885 PMCID: PMC8658871 DOI: 10.3390/molecules26237303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 11/18/2022] Open
Abstract
By varying the steric and electronic surroundings of the hydrogen-bonding motif, the novel chiral Cinchona-alkaloid based selenoureas were developed. Acting as bifunctional catalysts, they were applied in the Michael reactions of dithiomalonate and nitrostyrene providing chiral adducts with up to 96% ee. The asymmetric Michael–-hemiacetalization reaction of benzylidene pyruvate and dimedone, performed with the assistance of 5 mol% of selenoureas, furnished the product with up to 93% ee and excellent yields. The effectiveness of the new hydrogen-bond donors was also proved in solvent-free reactions under ball mill conditions, supporting the sustainability of the devised catalytic protocol.
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9
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Thomas Passia M, Schöbel JH, Julian Lentelink N, Truong KN, Rissanen K, Bolm C. Synthesis of trifluoromethyl-substituted 1,2,6-thiadiazine 1-oxides from sulfonimidamides under mechanochemical conditions. Org Biomol Chem 2021; 19:9470-9475. [PMID: 34708226 DOI: 10.1039/d1ob01912k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
TBS-protected or NH-sulfonimidamides react with β-alkoxyvinyl trifluoromethylketones under solvent-free mechanochemical conditions to give 3-trifluoromethyl-substituted three-dimensional 1,2,6-thiadiazine 1-oxides. C4-Functionalized products can be obtained by starting from cyclic enones and brominations of the initially formed heterocycles. The stability of the products was investigated by varying the pH value and storage under aerobic conditions.
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Affiliation(s)
- Marco Thomas Passia
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
| | - Jan-Hendrik Schöbel
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
| | - Niklas Julian Lentelink
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
| | - Khai-Nghi Truong
- University of Jyvaskyla, Department of Chemistry, P.O. Box. 35, Survontie 9 B, 40014 Jyväskylä, Finland
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, P.O. Box. 35, Survontie 9 B, 40014 Jyväskylä, Finland
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.
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10
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Banerjee M, Bhosle AA, Chatterjee A, Saha S. Mechanochemical Synthesis of Organic Dyes and Fluorophores. J Org Chem 2021; 86:13911-13923. [PMID: 34398612 DOI: 10.1021/acs.joc.1c01540] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The syntheses of dyes and fluorophores have significant commercial importance. In recent years, mechanochemistry has emerged as a green and sustainable alternative for the synthesis of conventional dyes, new fluorophores, and also synthetic modification of known dyes for their use as chemosensors. The dyestuffs based on BODIPYs, rhodamine, fluorescein, perylenedimides, coumarins, benzothiazoles, etc. were synthesized or derivatized by grinding or milling. The synopsis aims to pay key attention to their synthesis and the applications as chemosensors will be briefly covered.
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Affiliation(s)
- Mainak Banerjee
- Department of Chemistry, BITS- Pilani, K.K. Birla Goa Campus, NH 17B, Bypass Road, Zuarinagar, Sancoale, Goa 403726, India
| | - Akhil A Bhosle
- Department of Chemistry, BITS- Pilani, K.K. Birla Goa Campus, NH 17B, Bypass Road, Zuarinagar, Sancoale, Goa 403726, India
| | - Amrita Chatterjee
- Department of Chemistry, BITS- Pilani, K.K. Birla Goa Campus, NH 17B, Bypass Road, Zuarinagar, Sancoale, Goa 403726, India
| | - Soumik Saha
- Department of Chemistry, BITS- Pilani, K.K. Birla Goa Campus, NH 17B, Bypass Road, Zuarinagar, Sancoale, Goa 403726, India
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11
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Li L, Wang GW. Mechanochemical Solvent-Free Synthesis of Indenones from Aromatic Carboxylic Acids and Alkynes. J Org Chem 2021; 86:14102-14112. [PMID: 34403240 DOI: 10.1021/acs.joc.1c01472] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The mechanochemical solvent-free synthesis of indenones from aromatic carboxylic acids and alkynes was achieved through triflic anhydride (Tf2O)-induced cyclization reaction. A variety of indenones including a bioactive PPARγ agonist were obtained in up to 90% yield at room temperature. The present protocol has the advantages of mild reaction conditions, high reaction efficiency, and feasibility of scalable synthesis, providing a facile and sustainable route to diverse indenones.
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Affiliation(s)
- Liang Li
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.,Department of Chemistry and Chemical Engineering, Hefei Normal University, Hefei, Anhui 230601, People's Republic of China
| | - Guan-Wu Wang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry, and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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12
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Schumacher C, Molitor C, Smid S, Truong KN, Rissanen K, Bolm C. Mechanochemical Syntheses of N-Containing Heterocycles with TosMIC. J Org Chem 2021; 86:14213-14222. [PMID: 34405999 DOI: 10.1021/acs.joc.1c01529] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A mechanochemical van Leusen pyrrole synthesis with a base leads to 3,4-disubstitued pyrroles in moderate to excellent yields. The developed protocol is compatible with a range of electron-withdrawing groups and can also be applied to the synthesis of oxazoles. Attempts to mechanochemically convert the resulting pyrroles into porphyrins proved to be difficult.
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Affiliation(s)
- Christian Schumacher
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Claude Molitor
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Sabrina Smid
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Khai-Nghi Truong
- Department of Chemistry, University of Jyvaskyla, P.O. Box 35, Survontie 9 B, FI-40014 Jyväskylä, Finland
| | - Kari Rissanen
- Department of Chemistry, University of Jyvaskyla, P.O. Box 35, Survontie 9 B, FI-40014 Jyväskylä, Finland
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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13
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Krauskopf F, Truong KN, Rissanen K, Bolm C. 2,3-Dihydro-1,2,6-thiadiazine 1-Oxides by Biginelli-Type Reactions with Sulfonimidamides under Mechanochemical Conditions. Org Lett 2021; 23:2699-2703. [PMID: 33739844 DOI: 10.1021/acs.orglett.1c00596] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Biginelli-type multicomponent reactions (MCRs) with NH-free sulfonimidamides provide 2,3-dihydro-1,2,6-thiadiazine 1-oxides in high yields. The couplings are performed in a planetary ball mill under solvent-free mechanochemical conditions. Acetic acid or ytterbium triflate are used as catalysts. A representative product was characterized by X-ray single crystal structure analysis revealing molecular details of the highly functionalized three-dimensional heterocycle. Further product modifications lead to additional structural scaffolds.
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Affiliation(s)
- Felix Krauskopf
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Khai-Nghi Truong
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, Survontie 9B, FI-40014 Jyväskylä, Finland
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, Survontie 9B, FI-40014 Jyväskylä, Finland
| | - Carsten Bolm
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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14
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Schöbel J, Elbers P, Truong K, Rissanen K, Bolm C. 1,2‐Benzothiazine Derivatives from Sulfonimidamides by Metal‐Catalyzed Annulation Reactions in Solution and under Solvent‐Free Mechanochemical Conditions. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001505] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Jan‐Hendrik Schöbel
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
| | - Philipp Elbers
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
| | - Khai‐Nghi Truong
- Department of Chemistry University of Jyvaskyla, P.O. Box 35 Survontie 9B FI-40014 Jyväskylä Finland
| | - Kari Rissanen
- Department of Chemistry University of Jyvaskyla, P.O. Box 35 Survontie 9B FI-40014 Jyväskylä Finland
| | - Carsten Bolm
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
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