1
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Lan Y, Han Q, Liao P, Chen R, Fan F, Zhao X, Liu W. Nickel-Catalyzed Enantioselective C(sp 3)-C(sp 3) Cross-Electrophile Coupling of N-Sulfonyl Styrenyl Aziridines with Alkyl Bromides. J Am Chem Soc 2024. [PMID: 39231321 DOI: 10.1021/jacs.4c08435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2024]
Abstract
Herein, we report the first example of a highly enantioselective alkylative aziridine ring opening. Under the catalysis of a chiral nickel/pyridine-imidazoline complex, asymmetric C(sp3)-C(sp3) cross-electrophile coupling between racemic N-sulfonyl styrenyl aziridines and readily available primary alkyl bromides furnishes a variety of highly enantioenriched phenethylamine derivatives with complete regiocontrol and good functional group tolerance. Preliminary mechanistic studies support a reaction pathway consisting of regioselective iodolysis of aziridines in situ and subsequent enantioconvergent coupling of the generated β-amino benzyl iodides with alkyl bromides.
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Affiliation(s)
- Yun Lan
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 1188 Wanrong Road, Shanghai 200072, People's Republic of China
- Shanghai Yuansi Standard Science and Technology Co., Ltd., 1188 Wanrong Road, Shanghai 200072, People's Republic of China
| | - Qiaoying Han
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 1188 Wanrong Road, Shanghai 200072, People's Republic of China
- Shanghai Yuansi Standard Science and Technology Co., Ltd., 1188 Wanrong Road, Shanghai 200072, People's Republic of China
| | - Pingyong Liao
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 1188 Wanrong Road, Shanghai 200072, People's Republic of China
- Shanghai Yuansi Standard Science and Technology Co., Ltd., 1188 Wanrong Road, Shanghai 200072, People's Republic of China
| | - Ruijia Chen
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 1188 Wanrong Road, Shanghai 200072, People's Republic of China
- Shanghai Yuansi Standard Science and Technology Co., Ltd., 1188 Wanrong Road, Shanghai 200072, People's Republic of China
| | - Fei Fan
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 1188 Wanrong Road, Shanghai 200072, People's Republic of China
- Shanghai Yuansi Standard Science and Technology Co., Ltd., 1188 Wanrong Road, Shanghai 200072, People's Republic of China
| | - Xuejun Zhao
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 1188 Wanrong Road, Shanghai 200072, People's Republic of China
- Shanghai Yuansi Standard Science and Technology Co., Ltd., 1188 Wanrong Road, Shanghai 200072, People's Republic of China
| | - Wenbin Liu
- Shanghai Key Laboratory of Crime Scene Evidence, Shanghai Research Institute of Criminal Science and Technology, 1188 Wanrong Road, Shanghai 200072, People's Republic of China
- Shanghai Yuansi Standard Science and Technology Co., Ltd., 1188 Wanrong Road, Shanghai 200072, People's Republic of China
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2
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Roy A, Duari S, Maity S, Biswas S, Mishra AK, Biswas S. Regioselective Brønsted acid catalyzed ring opening of aziridines by phenols and thiophenols; a gateway to access functionalized indolines, indoles, benzothiazines, dihydrobenzo-thiazines, benzo-oxazines and benzochromenes. Org Biomol Chem 2024; 22:5653-5664. [PMID: 38919997 DOI: 10.1039/d4ob00196f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2024]
Abstract
Brønsted acid catalyzed regioselective ring opening of aziridines by phenols and thiophenols have been reported. Involvement of a series of aziridines with a range of phenols and thiophenols offer the generality of the reported protocol. Completion of the reaction at room temperature within very short time brings the uniqueness of the developed technique. To emphasis on the application of the developed methodology, the products have been used for the further synthesis of a range of useful and novel heterocyclic molecules such as indolines, indoles, benzothiazines, dihydrobenzothiazines, benzo-oxazines and benzochromenes.
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Affiliation(s)
- Arnab Roy
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
| | - Surajit Duari
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
| | - Srabani Maity
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
| | - Subrata Biswas
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
| | - Abhishek Kumar Mishra
- Department of Medicinal and Process Chemistry, CSIR-Central Drug Research Institute, Lucknow - 226031, U. P., India
| | - Srijit Biswas
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata - 700 009, West Bengal, India.
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3
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Larghi EL, Bracca ABJ, Simonetti SO, Kaufman TS. Relevant Developments in the Use of Three-Component Reactions for the Total Synthesis of Natural Products. The last 15 Years. ChemistryOpen 2024; 13:e202300306. [PMID: 38647363 PMCID: PMC11095226 DOI: 10.1002/open.202300306] [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: 12/14/2023] [Revised: 03/26/2024] [Indexed: 04/25/2024] Open
Abstract
Multicomponent reactions (MCRs) offer a highly useful and valuable strategy that can fulfill an important role in synthesizing complex polysubstituted compounds, by simplifying otherwise long sequences and increasing their efficiency. The total synthesis of selected natural products employing three-component reactions as their common strategic MCR approach, is reviewed on a case-by-case basis with selected targets conquered during the last 15 years. The revision includes detailed descriptions of the selected successful sequences; relevant information on the isolation, and bioactivity of the different natural targets is also briefly provided.
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Affiliation(s)
- Enrique L. Larghi
- Instituto de Química Rosario IQUIR (CONICET-UNR)Facultad de Ciencias Bioquímicas y FarmacéuticasUniversidad Nacional de Rosario (UNR)Suipacha 5312000RosarioArgentina
| | - Andrea B. J. Bracca
- Instituto de Química Rosario IQUIR (CONICET-UNR)Facultad de Ciencias Bioquímicas y FarmacéuticasUniversidad Nacional de Rosario (UNR)Suipacha 5312000RosarioArgentina
| | - Sebastian O. Simonetti
- Instituto de Química Rosario IQUIR (CONICET-UNR)Facultad de Ciencias Bioquímicas y FarmacéuticasUniversidad Nacional de Rosario (UNR)Suipacha 5312000RosarioArgentina
| | - Teodoro S. Kaufman
- Instituto de Química Rosario IQUIR (CONICET-UNR)Facultad de Ciencias Bioquímicas y FarmacéuticasUniversidad Nacional de Rosario (UNR)Suipacha 5312000RosarioArgentina
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4
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Cheng LC, Wang Z, He X, Liang W, Ye KY. Cobalt-catalyzed amination of aziridines and azetidines toward 1,2- and 1,3-diamines. Org Biomol Chem 2024; 22:2554-2557. [PMID: 38446010 DOI: 10.1039/d4ob00168k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
Diamines play important roles in synthetic organic chemistry and thus facilitate life and materials sciences. Herein we report a cobalt-catalyzed ring opening, nucleophilic amination of aziridines and azetidines with N-fluorosulfonamides toward a wide range of 1,2- and 1,3-diamine derivatives in moderate to good yields under mild conditions.
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Affiliation(s)
- Ling-Chao Cheng
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China.
| | - Zhihua Wang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China.
| | - Xinglei He
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China.
| | - Wangfu Liang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China.
| | - Ke-Yin Ye
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China.
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5
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Gross P, Im H, Laws D, Park B, Baik MH, Blakey SB. Enantioselective Aziridination of Unactivated Terminal Alkenes Using a Planar Chiral Rh(III) Indenyl Catalyst. J Am Chem Soc 2024; 146:1447-1454. [PMID: 38170978 PMCID: PMC10797617 DOI: 10.1021/jacs.3c10637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 01/05/2024]
Abstract
Chiral aziridines are important structural motifs found in natural products and various target molecules. They serve as versatile building blocks for the synthesis of chiral amines. While advances in catalyst design have enabled robust methods for enantioselective aziridination of activated olefins, simple and abundant alkyl-substituted olefins pose a significant challenge. In this work, we introduce a novel approach utilizing a planar chiral rhodium indenyl catalyst to facilitate the enantioselective aziridination of unactivated alkenes. This transformation exhibits a remarkable degree of functional group tolerance and displays excellent chemoselectivity favoring unactivated alkenes over their activated counterparts, delivering a wide range of enantioenriched high-value chiral aziridines. Computational studies unveil a stepwise aziridination mechanism in which alkene migratory insertion plays a central role. This process results in the formation of a strained four-membered metallacycle and serves as both the enantio- and rate-determining steps in the overall reaction.
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Affiliation(s)
- Patrick Gross
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Hoyoung Im
- Department
of Chemistry, Korea Advanced Institute of
Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center
for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - David Laws
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
| | - Bohyun Park
- Department
of Chemistry, Korea Advanced Institute of
Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center
for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Mu-Hyun Baik
- Department
of Chemistry, Korea Advanced Institute of
Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Center
for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Simon B. Blakey
- Department
of Chemistry, Emory University, Atlanta, Georgia 30322, United States
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6
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Nagamalla S, Thomas AA, Nirpal AK, Mague JT, Sathyamoorthi S. Ring Opening of Aziridines by Pendant Sulfamates Allows for Regioselective and Stereospecific Preparation of Vicinal Diamines. J Org Chem 2023; 88:15989-16006. [PMID: 37903411 PMCID: PMC10799289 DOI: 10.1021/acs.joc.3c01731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
The ring opening of aziridines by pendant sulfamates is a viable strategy for the rapid preparation of vicinal diamines. Our reaction is compatible with both disubstituted cis- and trans-aziridines; unsubstituted, N-alkyl, and N-aryl sulfamates engage effectively. In all cases examined, the cyclization reaction is perfectly regioselective and stereospecific. Once activated, the product oxathiazinane heterocycles can be ring opened with a diverse range of nucleophiles.
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Affiliation(s)
- Someshwar Nagamalla
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
| | - Annu Anna Thomas
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
| | - Appasaheb K. Nirpal
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
| | - Joel T. Mague
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Shyam Sathyamoorthi
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
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7
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Zhai P, Fang Y, Li W, Lin J, Li X. Three-Component Synthesis of Di-Keto Aziridines and Highly Functionalized Alkenes from Sulfoxonium Ylides, Nitrosoarenes, and Alkynes. J Org Chem 2023; 88:12194-12207. [PMID: 37590322 DOI: 10.1021/acs.joc.3c00062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
A catalyst-free one-pot three-component method of sulfoxonium ylides, nitrosoarenes, and alkynes for the synthesis of highly functionalized di-keto aziridines and alkenes is described. This strategy features the catalyst-free and additive-free approach, the employment of safe, more stable, and readily accessible sulfoxonium ylides, which bear a much wider substrate scope as starting materials. In terms of terminal alkynes, a cascade reaction of nitrone formation/1,3-diploar cycloaddition/Baldwin rearrangement is involved to afford a wide variety of di-keto aziridines. However, highly functionalized alkenes could be obtained instead of di-keto aziridines through the same nitrone formation/1,3-diploar cycloaddition and another different rearrangement reaction when internal alkynes are employed as starting materials.
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Affiliation(s)
- Pingan Zhai
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Yongsheng Fang
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Wenhui Li
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Jianying Lin
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Xing Li
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
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8
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Tang W, Fan P. Nickel-Catalyzed Cross-Electrophile Ring Opening/ gem-Difluoroallylation of Aziridines. Org Lett 2023; 25:5756-5761. [PMID: 37503939 DOI: 10.1021/acs.orglett.3c01973] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Herein we report a nickel-catalyzed regioselective cross-electrophile ring opening reaction of sulfonyl-protected aziridines with trifluoromethyl-substituted alkenes as the gem-difluoroallylating agents, providing a new and efficient entry to prepare gem-difluorobishomoallylic sulfonamides. Moreover, the scaffold of 6-fluoro-1,2,3,4-tetrahydropyridine can be constructed starting from the ring opening products via NaH-mediated intramolecular defluorinative nucleophilic vinylic substitution.
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Affiliation(s)
- Wei Tang
- School of Chemical and Materials Engineering, Anhui Province Key Laboratory of Low Temperature Co-fired Materials, Huainan Normal University, Huainan, Anhui 232038, P. R. China
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Pei Fan
- School of Chemical and Materials Engineering, Anhui Province Key Laboratory of Low Temperature Co-fired Materials, Huainan Normal University, Huainan, Anhui 232038, P. R. China
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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9
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Klarek M, Siodła T, Ayad T, Virieux D, Rapp M. Access to 2-Fluorinated Aziridine-2-phosphonates from α, α-Halofluorinated β-Iminophosphonates-Spectroscopic and Theoretical Studies. Molecules 2023; 28:5579. [PMID: 37513451 PMCID: PMC10385471 DOI: 10.3390/molecules28145579] [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: 07/02/2023] [Revised: 07/16/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
The efficient one-pot halofluorination of a β-enaminophosphonate/β-iminophosphonate tautomeric mixture resulting in α,α-halofluorinated β-iminophosphonates is reported. Subsequent imine reduction gave the corresponding β-aminophosphonates as a racemic mixture or with high diastereoselectivity. The proposed protocol is the first example of a synthesis of N-inactivated aziridines substituted by a fluorine and phosphonate moiety on the same carbon atom. Based on spectroscopic and theoretical studies, we determined the cis/trans geometry of the resulting fluorinated aziridine-2-phosphonate. Our procedure, involving the reduction of cis/trans-fluoroaziridine mixture 24, allows us to isolate chiral trans-aziridines 24 as well as cis-aziridines 27 that do not contain a fluorine atom. We also investigated the influence of the fluorine atom on the reactivity of aziridine through an acid-catalyzed regioselective ring-opening reaction. The results of DFT calculations, at the PCM/ωB97x-D/def2-TZVPD level of theory, are in good agreement with the experiments. The transition states of the SN2 intramolecular cyclization of vicinal haloamines have been modeled.
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Affiliation(s)
- Mateusz Klarek
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Tomasz Siodła
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Tahar Ayad
- Institut Charles Gerhardt, CNRS, Ecole Nationale Supérieure de Chimie de Montpellier, 8 Rue de l'Ecole Normale, 34296 Montpellier, France
| | - David Virieux
- Institut Charles Gerhardt, CNRS, Ecole Nationale Supérieure de Chimie de Montpellier, 8 Rue de l'Ecole Normale, 34296 Montpellier, France
| | - Magdalena Rapp
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
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10
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Ghosh D, Molla SA, Ghosh NN, Khamarui S, Maiti DK. Cu II-Catalyzed cis-Selective Synthesis of Ketoepoxides from Phenacyl Bromides and Water. J Org Chem 2023. [PMID: 37379249 DOI: 10.1021/acs.joc.2c02835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
A verity of α,β-ketoepoxides was synthesized using a CuII-catalyzed oxidative C-C/O-C coupled cyclization strategy with high yield and cis-selectivity. Water is used as the source of oxygen and phenacyl bromide as the carbon in the valuable epoxides. The self-coupling method was extended to cross-coupling between phenacyl bromides with benzyl bromides. A high cis-diastereoselectivity was observed in all the synthesized ketoepoxides. Control experiments and density functional theory (DFT) study were performed to understand the CuII-CuI transition mechanism.
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Affiliation(s)
- Debasish Ghosh
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | - Sabir A Molla
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | | | - Saikat Khamarui
- Department of Chemistry, Government General Degree College, Kalna-1, Burdwan 713405, India
| | - Dilip K Maiti
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
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11
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Yang PJ, Chai Z. Catalytic enantioselective desymmetrization of meso-aziridines. Org Biomol Chem 2023; 21:465-478. [PMID: 36508282 DOI: 10.1039/d2ob01935c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
As a type of readily available small strained-ring heterocycle, meso-aziridines may undergo catalytic desymmetrizing transformations to empower the rapid construction of diverse nitrogen-containing structures bearing contiguous stereocenters, which have great relevance in natural product synthesis, drug development and the design and synthesis of chiral catalysts/ligands for asymmetric catalysis. This review outlines the advances achieved in the catalytic asymmetric desymmetrization of meso aziridines and highlights some promising avenues for further work in this realm.
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Affiliation(s)
- Pei-Jun Yang
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Middle Beijing Road, Wuhu, Anhui 241000, China.,MOE Key Laboratory of Functional Molecular Solids, Anhui Laboratory of Molecule-Based Materials, Institute of Organic Chemistry, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, China.
| | - Zhuo Chai
- MOE Key Laboratory of Functional Molecular Solids, Anhui Laboratory of Molecule-Based Materials, Institute of Organic Chemistry, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, China.
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12
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Cao J, Su YX, Zhang XY, Zhu SF. Highly Enantioselective Brønsted Acid Catalyzed Heyns Rearrangement. Angew Chem Int Ed Engl 2023; 62:e202212976. [PMID: 36316277 DOI: 10.1002/anie.202212976] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Indexed: 12/05/2022]
Abstract
Herein we report the first method for highly enantioselective Brønsted acid catalyzed Heyns rearrangements. These reactions, catalyzed by a chiral spiro phosphoric acid, afforded synthetically valuable chiral α-aryl-α-aminoketones which cannot be obtained by means of previously reported Heyns rearrangement methods. This method features low catalyst loadings, high yields and high enantioselectivities, making these reactions highly practical. We used the method to efficiently synthesize various chiral amines, including some biologically active molecules. We experimentally proved that these acid-catalyzed Heyns rearrangements proceeded via a proton-transfer process involving an enol intermediate and the stereocontrol was realized during the proton-transfer step.
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Affiliation(s)
- Jin Cao
- Frontiers Science Center for New Organic Matters, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 300071, Tianjin, China
| | - Yu-Xuan Su
- Frontiers Science Center for New Organic Matters, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 300071, Tianjin, China
| | - Xin-Yu Zhang
- Frontiers Science Center for New Organic Matters, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 300071, Tianjin, China
| | - Shou-Fei Zhu
- Frontiers Science Center for New Organic Matters, State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, 300071, Tianjin, China.,Haihe Laboratory of Sustainable Chemical Transformations, 300192, Tianjin, China
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13
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Recent Developments in Stereoselective Reactions of Sulfonium Ylides. ORGANICS 2022. [DOI: 10.3390/org3030024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This review describes advances in the literature since the mid-1990s in the area of reactions of sulfonium ylide chemistry, with particular attention paid to stereoselective examples. Although the chemistry of sulfonium ylides was first popularized and applied in a substantial way in the 1960s, there has been sustained interest in the chemistry of sulfonium ylides since then. Many new ways of exploiting sulfonium ylides in productive stereoselective methodologies have emerged, often taking advantage of advances in organocatalysis and transition metal catalysis, to access stereodefined structurally complex motifs. The development of many different chiral sulfides over the last 20–30 years has also played a role in accelerating their study in a variety of reaction settings. In general, formal cycloaddition reactions ([2 + 1] and [4 + 1]) of sulfonium ylides follow a similar mechanistic pathway: initial addition of the nucleophilic ylide carbanion to an electrophile to form a zwitterionic betaine intermediate, followed by cyclization of the zwitterionic intermediate to afford the desired three-membered cyclic product (e.g., epoxide, cyclopropane, or aziridine), five-membered monocyclic (e.g., oxazolidinone), or fused bicyclic product (e.g., benzofuran, indoline).
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14
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Nagamalla S, Paul D, Mague JT, Sathyamoorthi S. Ring Opening of Aziridines by Pendant Silanols Allows for Preparations of (±)-Clavaminol H, (±)-Des-Acetyl-Clavaminol H, (±)-Dihydrosphingosine, and (±)- N-Hexanoyldihydrosphingosine. Org Lett 2022; 24:6202-6207. [PMID: 35951966 PMCID: PMC10017055 DOI: 10.1021/acs.orglett.2c02496] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a unique strategy for the synthesis of vicinal amino alcohols. Ring opening of aziridines with pendant silanols is compatible with a range of substrates. To engage productively in ring opening, the aziridine must be at least mildly activated, and a variety of such N-substituents are tolerated. The utility of this methodology is highlighted in facile preparations of the natural products (±)-Clavaminol H, (±)-dihydrosphingosine, and (±)-N-hexanoyldihydrosphingosine as well as a natural product analogue (±)-des-acetyl-Clavaminol H.
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Affiliation(s)
- Someshwar Nagamalla
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Debobrata Paul
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Joel T Mague
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Shyam Sathyamoorthi
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
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15
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Chandra D, Kumar P, Yadav AK, Kumar G, Jat JL. A Synthetic Overview of Enones Aziridination. ChemistrySelect 2022. [DOI: 10.1002/slct.202200267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dinesh Chandra
- Department of Chemistry School of Physical and Decision Science Babasaheb Bhimrao Ambedkar University (A Central University) Lucknow India
| | - Puneet Kumar
- Department of Chemistry School of Physical and Decision Science Babasaheb Bhimrao Ambedkar University (A Central University) Lucknow India
| | - Ajay K. Yadav
- Department of Chemistry School of Physical and Decision Science Babasaheb Bhimrao Ambedkar University (A Central University) Lucknow India
| | - Ganesh Kumar
- Illinois Central College Peoria, Illinois 61635 USA
| | - Jawahar L. Jat
- Department of Chemistry School of Physical and Decision Science Babasaheb Bhimrao Ambedkar University (A Central University) Lucknow India
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16
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17
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Feng Y, Huai M, Huang T, Gao M, Tao C. Transtion-metal-free access to 2-arylphenethylamines through aryldiazonium ion catalyzed ring-opening of aziridines with arenes. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Sun H, Shang H, Cui B. (Salen)Mn(III)-Catalyzed Enantioselective Intramolecular Haloamination of Alkenes through Chiral Aziridinium Ion Ring-Opening Sequence. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hui Sun
- College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People’s Republic of China
| | - Huijian Shang
- College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People’s Republic of China
| | - Bin Cui
- College of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, People’s Republic of China
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19
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Pinarci AA, Daniecki N, TenHoeve TM, Dellosso B, Madiu R, Mejia L, Bektas SE, Moura-Letts G. Synthesis of N-tosylaziridines from substituted alkenes via zirconooxaziridine catalysis. Chem Commun (Camb) 2022; 58:4909-4912. [PMID: 35355045 DOI: 10.1039/d2cc00686c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we report the zirconooxaziridine promoted aziridination of alkenes using chloramine T as the quantitative source of N. The reaction works with high yields, diastereoselectivities and stereospecificity for a wide variety of substituted alkenes. A potential mechanism involving the formation of a zirconooxaziridine complex as the active catalyst has been proposed and initial mechanistic data would indicate that a highly associative mechanism is the predominant pathway for this transformation.
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Affiliation(s)
- Ali A Pinarci
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ, USA.
| | - Noah Daniecki
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ, USA.
| | - Tyler M TenHoeve
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ, USA.
| | - Brandon Dellosso
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ, USA.
| | - Rufai Madiu
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ, USA.
| | - Liliana Mejia
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ, USA.
| | - Seda E Bektas
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ, USA.
| | - Gustavo Moura-Letts
- Department of Chemistry and Biochemistry, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ, USA.
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20
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Abstract
We disclose a silver-catalyzed trifluoromethoxylation of N-tosyl aziridines with trifluoromethyl arylsulfonate. The protocol is characterized by its mild conditions, simple operations, and good chemo- and regioselectivity. In addition, the trifluoromethoxylation of trisubstituted aziridines could construct C-OCF3 quaternary centers exclusively, which is quite rare. This method unlocks a new catalytic blueprint for accessing β-trifluoromethoxylated amines, which could be important building blocks in synthetic chemistry.
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Affiliation(s)
- Jingrui Xin
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Xiangyu Deng
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Pingping Tang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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21
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Rodríguez DF, Moglie Y, Ramírez-Sarmiento CA, Singh SK, Dua K, Zacconi FC. Bio-click chemistry: a bridge between biocatalysis and click chemistry. RSC Adv 2022; 12:1932-1949. [PMID: 35425264 PMCID: PMC8979012 DOI: 10.1039/d1ra08053a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/28/2021] [Indexed: 11/21/2022] Open
Abstract
The fields of click chemistry and biocatalysis have rapidly grown over the last two decades. The development of robust and active biocatalysts and the widespread use of straightforward click reactions led to significant interactions between these two fields. Therefore the name bio-click chemistry seems to be an accurate definition of chemoenzymatic reactions cooperating with click transformations. Bio-click chemistry can be understood as the approach towards molecules of high-value using a green and sustainable approach by exploiting the potential of biocatalytic enzyme activity combined with the reliable nature of click reactions. This review summarizes the principal bio-click chemistry reactions reported over the last two decades, with a special emphasis on small molecules. Contributions to the field of bio-click chemistry are manifold, but the synthesis of chiral molecules with applications in medicinal chemistry and sustainable syntheses will be especially highlighted.
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Affiliation(s)
- Diego F Rodríguez
- Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile Chile
| | - Yanina Moglie
- Departamento de Química, INQUISUR, Universidad Nacional del Sur (UNS)-CONICET Argentina
| | - César A Ramírez-Sarmiento
- Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile Santiago Chile.,ANID - Millennium Science Initiative Program, Millennium Institute for Integrative Biology (iBio) Santiago Chile
| | - Sachin Kumar Singh
- School of Pharmaceutical Sciences, Lovely Professional University Phagwara 144411 Punjab India
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney NSW 2007 Australia.,Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney Ultimo Australia
| | - Flavia C Zacconi
- Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile Chile .,Institute for Biological and Medical Engineering, Schools of Engineering, Medicine and Biological Sciences, Pontificia Universidad Católica de Chile Santiago Chile.,Centro de Investigaciones en Nanotecnología y Materiales Avanzados, CIEN-UC, Pontificia Universidad Católica de Chile Santiago Chile
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22
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Suzuki I, Takenaka Y, Morishita Y, Shibata I. One-step Preparation of N-Unprotected Aziridines from 2H-Azirines by Addition of Ketene Silyl Acetals Catalyzed by Lewis Acids. CHEM LETT 2022. [DOI: 10.1246/cl.210589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Itaru Suzuki
- Research Center for Environmental Preservation, Osaka University, 2-4 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Yuya Takenaka
- Research Center for Environmental Preservation, Osaka University, 2-4 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Yoshitaka Morishita
- Research Center for Environmental Preservation, Osaka University, 2-4 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Ikuya Shibata
- Research Center for Environmental Preservation, Osaka University, 2-4 Yamada-oka, Suita, Osaka 565-0871, Japan
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23
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Qi L, Yang PJ, Ji WT, Tao GD, Yang G, Chai Z. Synthesis of chiral β-substituted γ-amino-butyric acid derivatives via enantioconvergent ring opening of racemic 2-(hetero)aryl aziridines with ketene silyl acetals. Org Chem Front 2022. [DOI: 10.1039/d2qo00450j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lewis acid-catalyzed enantioconvergent ring opening of racemic 2-(hetero)aryl-N-sulfonyl aziridines with ketene silyl acetals is developed.
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Affiliation(s)
- Ling Qi
- MOE Key Laboratory of Functional Molecular Solids, Anhui Laboratory of Molecule-Based Materials, Institute of Organic Chemistry, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, China
| | - Pei-Jun Yang
- MOE Key Laboratory of Functional Molecular Solids, Anhui Laboratory of Molecule-Based Materials, Institute of Organic Chemistry, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, China
- Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Middle Beijing Road, Wuhu, Anhui 241000, China
| | - Wen-Tao Ji
- MOE Key Laboratory of Functional Molecular Solids, Anhui Laboratory of Molecule-Based Materials, Institute of Organic Chemistry, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, China
| | - Gui-De Tao
- MOE Key Laboratory of Functional Molecular Solids, Anhui Laboratory of Molecule-Based Materials, Institute of Organic Chemistry, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, China
| | - Gaosheng Yang
- MOE Key Laboratory of Functional Molecular Solids, Anhui Laboratory of Molecule-Based Materials, Institute of Organic Chemistry, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, China
| | - Zhuo Chai
- MOE Key Laboratory of Functional Molecular Solids, Anhui Laboratory of Molecule-Based Materials, Institute of Organic Chemistry, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, China
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24
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Chandra D, Yadav AK, Singh V, Tiwari B, Jat JL. Fe(II)‐Catalyzed Synthesis of Unactivated Aziridines (N‐H/N‐Me) from Olefins Using
O
‐Arylsulfonyl Hydroxylamines. ChemistrySelect 2021. [DOI: 10.1002/slct.202102884] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dinesh Chandra
- Department of Chemistry School of Physical and Decision Sciences Babasaheb Bhimrao Ambedkar University (A Central University) Lucknow India
| | - Ajay K. Yadav
- Department of Chemistry School of Physical and Decision Sciences Babasaheb Bhimrao Ambedkar University (A Central University) Lucknow India
| | - Vikram Singh
- Division of Molecular Synthesis and Drug Discovery Centre of Biomedical Research SGPGIMS Campus Raebareli Road Lucknow 226014 India
| | - Bhoopendra Tiwari
- Division of Molecular Synthesis and Drug Discovery Centre of Biomedical Research SGPGIMS Campus Raebareli Road Lucknow 226014 India
| | - Jawahar L. Jat
- Department of Chemistry School of Physical and Decision Sciences Babasaheb Bhimrao Ambedkar University (A Central University) Lucknow India
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25
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Zhu GS, Yang PJ, Ma CX, Yang G, Chai Z. Catalytic Asymmetric [3 + 2] Annulation of Hantzsch Esters with Racemic N-Sulfonylaziridines. Org Lett 2021; 23:7933-7937. [PMID: 34609147 DOI: 10.1021/acs.orglett.1c02931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hantzsch esters (HEs) served as two-carbon partners in a copper(I)-catalyzed enantioselective [3 + 2] annulation with racemic 2-(hetero)aryl-N-sulfonyl aziridines via kinetic resolution to provide pyrrolo[2,3-b]tetrahydropyridines containing multiple contiguous stereogenic centers including all-carbon quaternary centers in excellent yields and enantiopurities and moderate-to-excellent diastereoselectivities. Mainly dependent upon the structures of the aziridines, a competitive hydrogenolysis process with HEs as the hydrogen source was also observed in some cases.
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Affiliation(s)
- Guo-Sheng Zhu
- MOE Key Laboratory of Functional Molecular Solids, Anhui Laboratory of Molecule-Based Materials, Institute of Organic Chemistry, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, People's Republic of China
| | - Pei-Jun Yang
- MOE Key Laboratory of Functional Molecular Solids, Anhui Laboratory of Molecule-Based Materials, Institute of Organic Chemistry, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, People's Republic of China.,Anhui Province Key Laboratory of Functional Coordinated Complexes for Materials Chemistry and Application, School of Chemical and Environmental Engineering, Anhui Polytechnic University, Middle Beijing Road, Wuhu, Anhui 241000, People's Republic of China
| | - Chen-Xue Ma
- MOE Key Laboratory of Functional Molecular Solids, Anhui Laboratory of Molecule-Based Materials, Institute of Organic Chemistry, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, People's Republic of China
| | - Gaosheng Yang
- MOE Key Laboratory of Functional Molecular Solids, Anhui Laboratory of Molecule-Based Materials, Institute of Organic Chemistry, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, People's Republic of China
| | - Zhuo Chai
- MOE Key Laboratory of Functional Molecular Solids, Anhui Laboratory of Molecule-Based Materials, Institute of Organic Chemistry, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, People's Republic of China
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26
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Fan P, Jin Y, Liu J, Wang R, Wang C. Nickel/Photo-Cocatalyzed Regioselective Ring Opening of N-Tosyl Styrenyl Aziridines with Aldehydes. Org Lett 2021; 23:7364-7369. [PMID: 34543571 DOI: 10.1021/acs.orglett.1c02514] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Aldehydes and aziridines are both intrinsic electrophilic reagents, and thus the coupling reaction between these two compounds is highly challenging. In this protocol, the merger of nickel and hydrogen-atom-transfer photocatalysis successfully enables the ring opening of N-tosyl styrenyl aziridines with aldehydes, providing a novel and atom-economical access to a variety of β-amino ketones with complete regiocontrol. The preliminary mechanistic studies reveal that the ring opening reaction proceeds with a cooperative catalytic mode: aldehydes are converted into acyl radicals by tetrabutylammonium decatungstate under irradiation, whereas the nickel catalyst is engaged in the ring opening of aziridines and the following carbon-carbon bond-forming step.
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Affiliation(s)
- Pei Fan
- School of Chemical and Materials Engineering, Huainan Normal University, Huainan, Anhui 232038, P. R. China.,Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Youxiang Jin
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Jiawei Liu
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Rui Wang
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chuan Wang
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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27
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Costanzo M, Cortigiani M, Gillick‐Healy MW, Kelly BG, Monasterolo C, Adamo MFA. Organocatalytic Desymmetrization of Meso‐Aziridines Via Asymmetric Intramolecular Rearrangement. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Martina Costanzo
- Centre for Synthesis and Chemical Biology Department of Chemistry Royal College of Surgeons in Ireland 123 St. Stephen's Green Dublin 2 Ireland
| | - Mauro Cortigiani
- Centre for Synthesis and Chemical Biology Department of Chemistry Royal College of Surgeons in Ireland 123 St. Stephen's Green Dublin 2 Ireland
| | | | - Brian G. Kelly
- Kelada Pharmachem. Ltd A1.01, Science Centre South, Belfield Dublin 4 Ireland
| | - Claudio Monasterolo
- Centre for Synthesis and Chemical Biology School of Chemistry University College Dublin, Belfield Dublin 4 Ireland
| | - Mauro F. A. Adamo
- Centre for Synthesis and Chemical Biology Department of Chemistry Royal College of Surgeons in Ireland 123 St. Stephen's Green Dublin 2 Ireland
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28
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Ghosh A, Dey R, Banerjee P. Relieving the stress together: annulation of two different strained rings towards the formation of biologically significant heterocyclic scaffolds. Chem Commun (Camb) 2021; 57:5359-5373. [PMID: 33969833 DOI: 10.1039/d1cc00998b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Small carbo- and heterocycles have become versatile building blocks owing to their intrinsic ring strain and ease of synthesis. However, the traditional approaches of heterocycle synthesis involved the combination of one strained-carbocycle or heterocycle with one unsaturated molecule. On the contrary, there is an exciting possibility of combining two different strained rings to furnish varieties of heterocycles, where one of the strained rings can act as a valuable alternative to the unsaturated molecule. These strategies are also useful to access multi-functionalized rings. Despite these distinctive synthetic benefits, this chemistry has not drawn considerable attention of the community. In this minireview, we explicitly choose this topic to reveal the unexplored possibilities with these different strained rings. This minireview provides comprehensive details with the mechanistic rationale about the reactivity of these pairs of small rings when they are allowed to react together in the presence of different Lewis acids. Subsequently, it will also open a new avenue for heterocycle synthesis.
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Affiliation(s)
- Asit Ghosh
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab-140001, India.
| | - Raghunath Dey
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab-140001, India.
| | - Prabal Banerjee
- Department of Chemistry, Indian Institute of Technology Ropar, Nangal Road, Rupnagar, Punjab-140001, India.
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29
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Rhee H, Ranjith J, Byeon H, Ha H, Yang JW. Preparation and Utilization of Contiguous Bisaziridines as Chiral Building Blocks. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hyong‐Jin Rhee
- Department of Chemistry Hankuk University of Foreign Studies Yongin 17035 Republic of Korea
| | - Jala Ranjith
- Department of Chemistry Hankuk University of Foreign Studies Yongin 17035 Republic of Korea
| | - Huimyoung Byeon
- Department of Energy Science Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Hyun‐Joon Ha
- Department of Chemistry Hankuk University of Foreign Studies Yongin 17035 Republic of Korea
| | - Jung Woon Yang
- Department of Energy Science Sungkyunkwan University Suwon 16419 Republic of Korea
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30
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Umeda T, Minakata S. A practical method for the aziridination of α,β-unsaturated carbonyl compounds with a simple carbamate utilizing sodium hypochlorite pentahydrate. RSC Adv 2021; 11:22120-22124. [PMID: 35480842 PMCID: PMC9034239 DOI: 10.1039/d1ra04297a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 06/17/2021] [Indexed: 12/22/2022] Open
Abstract
The efficient formation of tert-butyl N-chloro-N-sodio-carbamate by the reaction of simple tert-butyl carbamate with sodium hypochlorite pentahydrate (NaOCl·5H2O) would be a practical and green method for the aziridination of α,β-unsaturated carbonyl compounds. The process described herein is transition-metal free, all of the materials are commercially available, the byproducts (NaCl and H2O) are environmentally benign and the reaction is stereoselective. The resulting aziridines are potential precursors of amino acids.
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Affiliation(s)
- Takehiro Umeda
- Department of Applied Chemistry, Graduate of Engineering, Osaka University Yamadaoka 2-1 Suita Osaka 565-0871 Japan
| | - Satoshi Minakata
- Department of Applied Chemistry, Graduate of Engineering, Osaka University Yamadaoka 2-1 Suita Osaka 565-0871 Japan
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31
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Cao YX, Silalai P, Liu CF, Yu KY, Bao X, Zhao XH, Saeeng R, Fan CA. Hypervalent-Iodine(III)-Mediated Tandem Oxidative Dearomatization/Aziridination of Phenolic Amines: Synthesis of Functionalized Unactivated Aziridines. Chemistry 2021; 27:8473-8478. [PMID: 33844345 DOI: 10.1002/chem.202100762] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Indexed: 11/11/2022]
Abstract
A new hypervalent-iodine(III)-mediated tandem reaction involving oxidative dearomatization and in situ aziridination of phenolic amines is described, providing a mild and effective method for the assembly of structurally interesting and synthetically useful aziridines. Importantly, the densely functionalized aziridines resulting from this unprecedented tandem reaction offer a platform for expeditious access to architecturally diverse aza-heterocycles through transformations initiated by selective ring-opening of aziridines.
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Affiliation(s)
- Ye-Xing Cao
- State Key Laboratory of Applied OrganicChemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou, 730000, P. R. China
| | - Patamawadee Silalai
- Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Burapha University, Chonburi, 20131, Thailand
| | - Chun-Fang Liu
- State Key Laboratory of Applied OrganicChemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou, 730000, P. R. China
| | - Ke-Yin Yu
- State Key Laboratory of Applied OrganicChemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou, 730000, P. R. China
| | - Xu Bao
- State Key Laboratory of Applied OrganicChemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou, 730000, P. R. China
| | - Xian-He Zhao
- State Key Laboratory of Applied OrganicChemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou, 730000, P. R. China
| | - Rungnapha Saeeng
- Department of Chemistry and Center for Innovation in Chemistry, Faculty of Science, Burapha University, Chonburi, 20131, Thailand
| | - Chun-An Fan
- State Key Laboratory of Applied OrganicChemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 Tianshui Nanlu, Lanzhou, 730000, P. R. China
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32
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Kalra A, Bagchi V, Paraskevopoulou P, Das P, Ai L, Sanakis Y, Raptopoulos G, Mohapatra S, Choudhury A, Sun Z, Cundari TR, Stavropoulos P. Is the Electrophilicity of the Metal Nitrene the Sole Predictor of Metal-Mediated Nitrene Transfer to Olefins? Secondary Contributing Factors as Revealed by a Library of High-Spin Co(II) Reagents. Organometallics 2021; 40:1974-1996. [PMID: 35095166 PMCID: PMC8797515 DOI: 10.1021/acs.organomet.1c00267] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Recent research has highlighted the key role played by the electron affinity of the active metal-nitrene/imido oxidant as the driving force in nitrene additions to olefins to afford valuable aziridines. The present work showcases a library of Co(II) reagents that, unlike the previously examined Mn(II) and Fe(II) analogues, demonstrate reactivity trends in olefin aziridinations that cannot be solely explained by the electron affinity criterion. A family of Co(II) catalysts (17 members) has been synthesized with the assistance of a trisphenylamido-amine scaffold decorated by various alkyl, aryl, and acyl groups attached to the equatorial amidos. Single-crystal X-ray diffraction analysis, cyclic voltammetry and EPR data reveal that the high-spin Co(II) sites (S = 3/2) feature a minimal [N3N] coordination and span a range of 1.4 V in redox potentials. Surprisingly, the Co(II)-mediated aziridination of styrene demonstrates reactivity patterns that deviate from those anticipated by the relevant electrophilicities of the putative metal nitrenes. The representative L4Co catalyst (-COCMe3 arm) is operating faster than the L8Co analogue (-COCF3 arm), in spite of diminished metal-nitrene electrophilicity. Mechanistic data (Hammett plots, KIE, stereocontrol studies) reveal that although both reagents follow a two-step reactivity path (turnover-limiting metal-nitrene addition to the C b atom of styrene, followed by product-determining ring-closure), the L4Co catalyst is associated with lower energy barriers in both steps. DFT calculations indicate that the putative [L4Co]NTs and [L8Co]NTs species are electronically distinct, inasmuch as the former exhibits a single-electron oxidized ligand arm. In addition, DFT calculations suggest that including London dispersion corrections for L4Co (due to the polarizability of the tert-Bu substituent) can provide significant stabilization of the turnover-limiting transition state. This study highlights how small ligand modifications can generate stereoelectronic variants that in certain cases are even capable of overriding the preponderance of the metal-nitrene electrophilicity as a driving force.
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Affiliation(s)
- Anshika Kalra
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
| | - Vivek Bagchi
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, United States; Institute of Nano Science and Technology, Mohali, Punjab 160062, India
| | - Patrina Paraskevopoulou
- Inorganic Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Athens 15771, Greece
| | - Purak Das
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
| | - Lin Ai
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, United States; College of Chemistry, Beijing Normal University, Beijing 100875, People's Republic of China
| | - Yiannis Sanakis
- Institute of Advanced Materials, Physicochemical Processes, Nanotechnology and Microsystems, NCSR "Demokritos", Athens 15310, Greece
| | - Grigorios Raptopoulos
- Inorganic Chemistry Laboratory, Department of Chemistry, National and Kapodistrian University of Athens, Athens 15771, Greece
| | - Sudip Mohapatra
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
| | - Amitava Choudhury
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
| | - Zhicheng Sun
- Department of Chemistry, Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Denton, Texas 76203, United States
| | - Thomas R Cundari
- Department of Chemistry, Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Denton, Texas 76203, United States
| | - Pericles Stavropoulos
- Department of Chemistry, Missouri University of Science and Technology, Rolla, Missouri 65409, United States
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33
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Fu X, Zhao Q, Zhao W. Synthesis of β‐Alkoxy Amines from Alkenes, Sulfonyl Azides, and Alcohols though Copper‐Catalyzed Three‐Component Tandem Reactions via Regioselective Ring‐Opening of Aziridine Intermediates. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xiao‐Fei Fu
- College of Chemistry and Chemical Engineering Shangqiu Normal University Shangqiu 476000 P. R. China
- College of Chemistry Zhengzhou University Zhengzhou 450001 P. R. China
| | - Qiang Zhao
- Department of Chemistry Purdue University West Lafayette Indiana 47907 United States
| | - Wen‐Xian Zhao
- College of Chemistry and Chemical Engineering Shangqiu Normal University Shangqiu 476000 P. R. China
- College of Chemistry Zhengzhou University Zhengzhou 450001 P. R. China
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34
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Pineschi M. Boron Reagents and Catalysts for the Functionalization of Strained Heterocycles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001493] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Mauro Pineschi
- Department of Pharmacy University of Pisa Via Bonanno 33 56126 Pisa Italy Tel
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35
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Li X, Zeng H, Lin L, Feng X. Catalytic Asymmetric Hydroacyloxylation/Ring-Opening Reaction of Ynamides, Acids, and Aziridines. Org Lett 2021; 23:2954-2958. [PMID: 33769054 DOI: 10.1021/acs.orglett.1c00631] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A highly enantioselective three-component reaction of ynamides with carboxylic acids and 2,2'-diester aziridines has been realized by using a chiral N,N'-dioxide/Ho(OTf)3 complex as a Lewis acid catalyst. The process includes the formation of an α-acyloxyenamide intermediate through the addition of carboxylic acids to ynamides and the following enantioselective nucleophilic addition to in-situ-generated azomethine ylides induced by the chiral catalyst. A range of amino acyloxyenamides are delivered in moderate to good yields with good ee values. In addition, a possible catalytic cycle with a transition model is proposed to elucidate the reaction mechanism.
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Affiliation(s)
- Xiangqiang Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Hongkun Zeng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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36
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Takeda Y, Toyoda K, Sameera WMC, Tohnai N, Minakata S. Palladium‐Catalyzed Regioselective and Stereospecific Ring‐Opening Suzuki‐Miyaura Arylative Cross‐Coupling of 2‐Arylazetidines with Arylboronic Acids. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100195] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Youhei Takeda
- Department of Applied Chemistry Graduate School of Engineering Osaka University Yamadaoka 2-1 Suita Osaka 5650871 Japan
| | - Kazuya Toyoda
- Department of Applied Chemistry Graduate School of Engineering Osaka University Yamadaoka 2-1 Suita Osaka 5650871 Japan
| | - W. M. C. Sameera
- Institute of Low Temperature Science Hokkaido University North 19 Kita-ku, Sapporo Hokkaido 0600819 Japan
| | - Norimitsu Tohnai
- Department of Applied Chemistry Graduate School of Engineering Osaka University Yamadaoka 2-1 Suita Osaka 5650871 Japan
| | - Satoshi Minakata
- Department of Applied Chemistry Graduate School of Engineering Osaka University Yamadaoka 2-1 Suita Osaka 5650871 Japan
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37
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Yu S, Gao L, Yan Y, Yin Z, Shang Y. Application of Cascade Reactions in the Synthesis of Sprio-hetero- cycles Initiated by Intramolecular Cyclization of Alkynols. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202006050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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38
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Dong P, Chen L, Yang Z, Dong S, Feng X. Asymmetric cycloisomerization/[3 + 2] cycloaddition for the synthesis of chiral spiroisobenzofuran-1,3′-pyrrolidine derivatives. Org Chem Front 2021. [DOI: 10.1039/d1qo01194d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An asymmetric tandem cycloisomerization/[3 + 2] cycloaddition reaction of 2,2′-diester aziridine and 2-ethynyl benzyl alcohol with Au(i)/chiral N,N′-dioxide−Dy(iii) as a relay catalyst system was developed.
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Affiliation(s)
- Pei Dong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Long Chen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Zhendong Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China
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39
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Minakata S, Kiyokawa K, Nakamura S. Transition-Metal-Free Aziridination of Alkenes with Sulfamate Esters Using tert-Butyl Hypoiodite. HETEROCYCLES 2021. [DOI: 10.3987/com-20-s(k)20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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40
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Abstract
Multiheteroatom-containing small-sized cyclic molecules such as 2-
iminothiazolidines are often found to possess beneficial pharmacological properties. In this
review article, the biological significance of 2-iminothiazolidines is discussed and the literature
reports published in the last 15 years spanning from 2006 to 2020 describing various
preparative routes to access 2-iminothiazolidine derivatives have been categorically and
chronologically described. The notable synthetic methods discussed here involve ringexpansion
transformations of nonactivated and activated aziridines, thiiranes, epoxides, and
other miscellaneous reactions.
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Affiliation(s)
- Aditya Bhattacharyya
- Department of Chemistry, Indian Institute of Technology Kanpur, 208016, Kanpur, Uttar Pradesh, India
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41
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Garcı́a-Cárceles J, Bahou KA, Bower JF. Recent Methodologies That Exploit Oxidative Addition of C–N Bonds to Transition Metals. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03341] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Karim A. Bahou
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
| | - John F. Bower
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, United Kingdom
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42
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Tian Y, Kunz D. Nucleophilic Rh
I
Catalyzed Selective Isomerization of Terminal Aziridines to Enamides. ChemCatChem 2020. [DOI: 10.1002/cctc.202000597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yingying Tian
- Institut für Anorganische Chemie Eberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Doris Kunz
- Institut für Anorganische Chemie Eberhard Karls Universität Tübingen Auf der Morgenstelle 18 72076 Tübingen Germany
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43
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Yoon HJ, Jung S, Kim SY. Force-Induced Cycloaddition of Aziridine: Can We Force a New Route? Synlett 2020. [DOI: 10.1055/s-0040-1707145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Cycloaddition reactions of aziridines with dipolarophiles under traditional thermal or photochemical conditions entail destructive routes to form reactive intermediates such as an azomethine ylide. This article highlights a recent study that demonstrates a cycloaddition reaction of aziridine induced by mechanical force. Experimental results suggest that the force-induced cycloaddition of aziridine with dimethyl acetylenedicarboxylate as a dipolarophile does not seem to involve an ylide, with implications for a possible new reaction route.1 Rivalry between Aziridine and Epoxide2 Mechanochemically Responsive Polymers3 Aziridine Mechanophore4 Concluding Remarks and Outlook
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44
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Singh K, Kumar P, Jagadeesh C, Patel M, Das D, Saha J. An Approach to α‐ and β‐Amino Peroxides via Lewis Acid Catalyzed Ring Opening‐Peroxidation of Donor‐Acceptor Aziridines and
N
‐Activated Aziridines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000815] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kuldeep Singh
- Division of Molecular Synthesis & Drug Discovery Centre of Biomedical Research (CBMR) SGPGIMS Campus. Raebareli Road Lucknow 226014 Uttar Pradesh. India
| | - Pramod Kumar
- Division of Molecular Synthesis & Drug Discovery Centre of Biomedical Research (CBMR) SGPGIMS Campus. Raebareli Road Lucknow 226014 Uttar Pradesh. India
| | - Chenna Jagadeesh
- Division of Molecular Synthesis & Drug Discovery Centre of Biomedical Research (CBMR) SGPGIMS Campus. Raebareli Road Lucknow 226014 Uttar Pradesh. India
| | - Manveer Patel
- Division of Molecular Synthesis & Drug Discovery Centre of Biomedical Research (CBMR) SGPGIMS Campus. Raebareli Road Lucknow 226014 Uttar Pradesh. India
| | - Dinabandhu Das
- School of Physical Sciences Jawaharlal Nehru University New Delhi India
| | - Jaideep Saha
- Division of Molecular Synthesis & Drug Discovery Centre of Biomedical Research (CBMR) SGPGIMS Campus. Raebareli Road Lucknow 226014 Uttar Pradesh. India
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45
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Takeda Y, Sameera WMC, Minakata S. Palladium-Catalyzed Regioselective and Stereospecific Ring-Opening Cross-Coupling of Aziridines: Experimental and Computational Studies. Acc Chem Res 2020; 53:1686-1702. [PMID: 32786337 DOI: 10.1021/acs.accounts.0c00395] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Aziridines, i.e., the smallest saturated N-heterocycles, serve as useful building blocks in synthetic organic chemistry. Because of the release of the large ring strain energy accommodated in the small ring, (ca. 27 kcal/mol), aziridines undergo ring-opening reactions with a variety of nucleophiles. Therefore, among the synthetic reactions utilizing aziridines, regioselective ring-opening substitutions of aziridines with nucleophiles, such as heteroatomic nucleophiles (e.g., amines, alcohols, and thiols) and carbonaceous nucleophiles (e.g., carbanions, organometallic reagents, and electron-rich arenes), constitute a useful synthetic methodology to synthesize biologically relevant β-functionalized alkylamines. However, the regioselection in such traditional ring-opening substitutions of aziridines is highly dependent on the substrate combination, and stereochemical control is challenging to achieve, especially in the case of Lewis acid-promoted variants. Therefore, the development of robust catalytic ring-opening functionalization methods that enable precise prediction of regioselectivity and stereochemistry is desirable. In this direction, our group focused on the highly regioselective and stereospecific nature of the stoichiometric oxidative addition elementary step of 2-substituted aziridines into Pd(0) complexes in an SN2 fashion. In conjunction with the recent advancements in transition-metal-catalyzed cross-coupling reactions of alkyl pseudohalides containing a C(sp3)-Q (Q = O, N, S, etc.) bond, aziridines can be used as nonclassical alkyl pseudohalides in regioselective and stereospecific cross-couplings.In this Account, starting from the background of transition-metal-catalyzed ring-opening functionalization of aziridines, our contributions to the palladium-catalyzed regioselective and stereoinvertive cross-couplings of aziridines with organoboron reagents to form C(sp3)-C, C(sp3)-B, and C(sp3)-Si bonds have been compiled. The developed methods allow the syntheses of medicinally important amine compounds, e.g., enantioenriched β-phenethylamines, β-amino acids, and their boron and silyl surrogates, from readily available enantiopure aziridine substrates. Notably, the regioselectivity of the ring opening can be switched by appropriate selection of the catalyst (i.e., Pd/NHC vs Pd/PR3 systems). Computational studies rationalized the detailed mechanisms of the full catalytic cycle and the regioselectivity and stereospecificity of the reactions. The computational results suggested that the interactions operating between the Pd catalyst and aziridine substrate play important roles in determining the regioselection of the aziridine ring-opening event (i.e., oxidative addition). Also, the computational results rationalized the role of water molecules in promoting the transmetalation step through the formation of a Pd-hydroxide active intermediate. This Account evidences the benefits of synergistic collaborations between experimental and computational methods in developing novel transition-metal-catalyzed cross-coupling reactions.
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Affiliation(s)
- Youhei Takeda
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
| | - W. M. C. Sameera
- Institute of Low Temperature Science, Hokkaido University, Kita-ku, North 19 West 8, Sapporo, Hokkaido 060-0819, Japan
| | - Satoshi Minakata
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
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46
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Li X, Feng T, Li D, Chang H, Gao W, Wei W. Straightforward Approach toward Multifunctionalized Aziridines via Catalyst-Free Three-Component Reactions of α-Diazoesters, Nitrosoarenes, and Alkynes. J Org Chem 2020; 85:9538-9547. [PMID: 32640794 DOI: 10.1021/acs.joc.0c00368] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A straightforward, catalyst-free atom- and step-economical approach for the synthesis of multisubstituted 1-arylaziridine-2-carboxylates via one-pot three-component reactions of α-diazoesters, nitrosoarenes, and alkynes has been described. This method could provide facile access to a variety of multifunctionalized aziridines in up to 91% yields under mild reaction conditions and features the catalyst-free strategy and use of cheap and readily accessible starting materials.
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Affiliation(s)
- Xing Li
- Department of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Tao Feng
- Department of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Dongjun Li
- Department of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Honghong Chang
- Department of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Wenchao Gao
- Department of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
| | - Wenlong Wei
- Department of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China
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47
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Chatterjee R, Santra S, Chakraborty Ghosal N, Giri K, Zyryanov GV, Majee A. CuO Nanoparticles as a Simple and Efficient Green Catalyst for the Aziridine Ring‐Opening: Examination of a Broad Range of Nucleophiles. ChemistrySelect 2020. [DOI: 10.1002/slct.202000853] [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)
- Rana Chatterjee
- Department of Chemistry, Visva-BharatiA Central University) Santiniketan 731235 India
| | - Sougata Santra
- Department of Organic and Biomolecular ChemistryChemical Engineering Institute, Ural Federal University 19 Mira Str. 620002 Yekaterinburg Russian Federation
| | | | - Kousik Giri
- Department of Computational Sciences, School of Basic and Applied SciencesCentral University of Punjab City Campus, Mansa Road Bathinda 151001 India
| | - Grigory V. Zyryanov
- Department of Organic and Biomolecular ChemistryChemical Engineering Institute, Ural Federal University 19 Mira Str. 620002 Yekaterinburg Russian Federation
- Institute of Organic SynthesisUral Division of the Russian Academy of Sciences 22 S. Kovalevskoy Str. 620219 Yekaterinburg Russian Federation
| | - Adinath Majee
- Department of Chemistry, Visva-BharatiA Central University) Santiniketan 731235 India
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48
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Jung S, Yoon HJ. Mechanical Force Induces Ylide-Free Cycloaddition of Nonscissible Aziridines. Angew Chem Int Ed Engl 2020; 59:4883-4887. [PMID: 31944507 DOI: 10.1002/anie.201915438] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 01/07/2020] [Indexed: 11/08/2022]
Abstract
The application of aziridines as nonvulnerable mechanophores is reported. Upon exposure to a mechanical force, stereochemically pure nonactivated aziridines incorporated into the backbone of a macromolecule do not undergo cis-trans isomerization, thus suggesting retention of the ring structure under force. Nonetheless, aziridines react with a dipolarophile and seem not to obey conventional reaction pathways that involve C-C or C-N bond cleavage prior to the cycloaddition. Our work demonstrates that a nonvulnerable chemical structure can be a mechanophore.
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Affiliation(s)
- Sangmin Jung
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
| | - Hyo Jae Yoon
- Department of Chemistry, Korea University, Seoul, 02841, South Korea
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49
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Saeidian H, Barfinejad E, Vessally E. Effect of aromaticity and ring strain on proton affinity of aziridine and amidine skeletons: a DFT study. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01899-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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50
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