1
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Hecht M, Dullinger P, Silva W, Horinek D, Gschwind RM. Highly acidic N-triflylphosphoramides as chiral Brønsted acid catalysts: the effect of weak hydrogen bonds and multiple acceptors on complex structures and aggregation. Chem Sci 2024; 15:9104-9111. [PMID: 38903236 PMCID: PMC11186309 DOI: 10.1039/d4sc01939c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 04/22/2024] [Indexed: 06/22/2024] Open
Abstract
N-Triflylphosphoramides (NTPAs) represent an important catalyst class in asymmetric catalysis due to their multiple hydrogen bond acceptor sites and acidity, which is increased by several orders of magnitude compared to conventional chiral phosphoric acids (CPAs). Thus, NTPAs allow for several challenging transformations, which are not accessible with CPAs. However, detailed evidence on their hydrogen bonding situation, complex structures and aggregation is still lacking. Therefore, this study covers the hydrogen bonding behavior and structural features of binary NTPA/imine complexes compared to their CPA counterparts. Deviating from the single-well potential hydrogen bonds commonly observed in CPA/imine complexes, the NTPA/imine complexes exhibit a tautomeric equilibrium between two proton positions. Low-temperature NMR at 180 K supported by computer simulations indicates a OHN hydrogen bond between the phosphoramide oxygen and the imine, instead of the mostly proposed NHN H-bond. Furthermore, this study finds no evidence for the existence of dimeric NTPA/NTPA/imine complexes as previously suggested for CPA systems, both synthetically and through NMR studies.
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Affiliation(s)
- Markus Hecht
- Institut für Organische Chemie, Universität Regensburg D-93053 Regensburg Germany
| | - Philipp Dullinger
- Institute of Physical and Theoretical Chemistry, University of Regensburg D-93053 Germany
| | - Wagner Silva
- Institut für Organische Chemie, Universität Regensburg D-93053 Regensburg Germany
| | - Dominik Horinek
- Institute of Physical and Theoretical Chemistry, University of Regensburg D-93053 Germany
| | - Ruth M Gschwind
- Institut für Organische Chemie, Universität Regensburg D-93053 Regensburg Germany
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2
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Hilton TA, Leach AG, McKay AP, Watson AJB. Accessing Rare α-Heterocyclic Aziridines via Brønsted Acid-catalyzed Michael Addition/Annulation: Scope, Limitations, and Mechanism. Chemistry 2024; 30:e202303993. [PMID: 38315627 DOI: 10.1002/chem.202303993] [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: 11/30/2023] [Revised: 02/05/2024] [Accepted: 02/05/2024] [Indexed: 02/07/2024]
Abstract
We report an approach to the diastereoselective synthesis of 1,2-disubstituted heterocyclic aziridines. A Brønsted acid-catalyzed conjugate addition of anilines to trisubstituted heterocyclic chloroalkenes provides an intermediate 1,2-chloroamine. Diastereocontrol was found to vary significantly with solvent selection, with computational modelling confirming selective, spontaneous fragmentation in the presence of trace acids, proceeding through a pseudo-cyclic, protonated intermediate and transition state. These chloroamines can then be converted to the aziridine by treatment with LiHMDS with high stereochemical fidelity. This solvent-induced stereochemical enrichment thereby enables an efficient route to rare cis-aziridines with high dr. The scope, limitations, and mechanistic origins of selectivity are also presented.
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Affiliation(s)
- Timothy A Hilton
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, U.K
| | - Andrew G Leach
- School of Health Sciences, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K
| | - Aidan P McKay
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, U.K
| | - Allan J B Watson
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, U.K
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3
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Tanpure SD, Kardile RD, Liu RS. Relay Zn( ii)- and Au( i)-catalyzed aziridination/cyclization/ring expansion sequence to form 3-benzazepine derivatives. Org Chem Front 2023. [DOI: 10.1039/d3qo00134b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
The synthesis of 3H-benzo[d]azepine-2-carboxylates from 2-alkynylphenyl aldimines and α-diazo esters using Zn(ii) and Au(i) catalysts is described.
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4
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Marques CS, Carreiro EP, Teixeira APS. Multicomponent Synthesis of Heterocycles. HETEROCYCLES 2022. [DOI: 10.1002/9783527832002.ch7] [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: 11/06/2022]
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5
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McLean LA, Ashford MW, Fyfe JWB, Slawin AMZ, Leach AG, Watson AJB. Asymmetric Synthesis of Heterocyclic Chloroamines and Aziridines by Enantioselective Protonation of Catalytically Generated Enamines. Chemistry 2022; 28:e202200060. [PMID: 35133031 PMCID: PMC9306946 DOI: 10.1002/chem.202200060] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Indexed: 02/01/2023]
Abstract
We report a method for the synthesis of chiral vicinal chloroamines via asymmetric protonation of catalytically generated prochiral chloroenamines using chiral Brønsted acids. The process is highly enantioselective, with the origin of asymmetry and catalyst substituent effects elucidated by DFT calculations. We show the utility of the method as an approach to the synthesis of a broad range of heterocycle-substituted aziridines by treatment of the chloroamines with base in a one-pot process, as well as the utility of the process to allow access to vicinal diamines.
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Affiliation(s)
- Liam A McLean
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, Fife, UK
| | - Matthew W Ashford
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, Fife, UK
| | - James W B Fyfe
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, Fife, UK
| | - Alexandra M Z Slawin
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, Fife, UK
| | - Andrew G Leach
- School of Health Sciences, University of Manchester, Oxford Road, Manchester, M13 9PL, UK
| | - Allan J B Watson
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, Fife, UK
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6
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Narode AS, Liu RS. Gold-Catalyzed Bicyclic Annulations of N-( o-Alkynylphenyl)imines with α-Diazo Esters to Form 5,6-Dihydroindolo[2,1- a]isoquinolines. Org Lett 2022; 24:2165-2169. [DOI: 10.1021/acs.orglett.2c00450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Akshay Subhash Narode
- Frontier Research Center of Matter Science and Technology, Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan 30013, ROC
| | - Rai-Shung Liu
- Frontier Research Center of Matter Science and Technology, Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan 30013, ROC
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7
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Caballero-García G, Goodman JM. N-Triflylphosphoramides: highly acidic catalysts for asymmetric transformations. Org Biomol Chem 2021; 19:9565-9618. [PMID: 34723293 DOI: 10.1039/d1ob01708j] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
N-Triflylphosphoramides (NTPA), have become increasingly popular catalysts in the development of enantioselective transformations as they are stronger Brønsted acids than the corresponding phosphoric acids (PA). Their highly acidic, asymmetric active site can activate difficult, unreactive substrates. In this review, we present an account of asymmetric transformations using this type of catalyst that have been reported in the past ten years and we classify these reactions using the enantio-determining step as the key criterion. This compendium of NTPA-catalysed reactions is organised into the following categories: (1) cycloadditions, (2) electrocyclisations, polyene and related cyclisations, (3) addition reactions to imines, (4) electrophilic aromatic substitutions, (5) addition reactions to carbocations, (6) aldol and related reactions, (7) addition reactions to double bonds, and (8) rearrangements and desymmetrisations. We highlight the use of NTPA in total synthesis and suggest mnemonics which account for their enantioselectivity.
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Affiliation(s)
| | - Jonathan M Goodman
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, CB2 1EW, Cambridge, UK.
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8
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Strumfs B, Uljanovs R, Velikijs K, Trapencieris P, Strumfa I. 3-Arylaziridine-2-carboxylic Acid Derivatives and (3-Arylaziridin-2-yl)ketones: The Aziridination Approaches. Int J Mol Sci 2021; 22:ijms22189861. [PMID: 34576025 PMCID: PMC8469611 DOI: 10.3390/ijms22189861] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 09/09/2021] [Indexed: 11/24/2022] Open
Abstract
Aziridination reactions represent a powerful tool in aziridine synthesis. Significant progress has been achieved in this field in the last decades, whereas highly functionalized aziridines including 3-arylated aziridine-2-carbonyl compounds play an important role in both medical and synthetic chemistry. For the reasons listed, in the current review we have focused on the ways to obtain 3-arylated aziridines and on the recent advances (mainly since the year 2000) in the methodology of the synthesis of these compounds via aziridination.
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Affiliation(s)
- Boriss Strumfs
- Latvian Institute of Organic Synthesis, 21 Aizkraukles Street, LV-1006 Riga, Latvia; (B.S.); (P.T.)
- Department of Pathology, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia; (R.U.); (K.V.)
| | - Romans Uljanovs
- Department of Pathology, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia; (R.U.); (K.V.)
| | - Kirils Velikijs
- Department of Pathology, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia; (R.U.); (K.V.)
| | - Peteris Trapencieris
- Latvian Institute of Organic Synthesis, 21 Aizkraukles Street, LV-1006 Riga, Latvia; (B.S.); (P.T.)
| | - Ilze Strumfa
- Department of Pathology, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia; (R.U.); (K.V.)
- Correspondence:
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9
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Feng X, Song Y, Lin W. Dimensional Reduction of Lewis Acidic Metal-Organic Frameworks for Multicomponent Reactions. J Am Chem Soc 2021; 143:8184-8192. [PMID: 34018731 DOI: 10.1021/jacs.1c03561] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Owing to hindered diffusions, the application of porous catalytic materials has been limited to relatively simple organic transformations with small substrates. Herein we report a dimensional reduction strategy to construct a two-dimensional metal-organic framework (MOF), Zr6OTf-BTB, with 96% accessible Lewis acidic sites as probed by the bulky Lewis base pivalonitrile. With nearly free substrate accessibility, Zr6OTf-BTB outperformed two three-dimensional MOF counterparts of similar Lewis acidity (Zr6OTf-BPDC and Zr6OTf-BTC) in catalyzing sterically hindered multicomponent reactions (MCRs) for the construction of tetrahydroquinoline and aziridine carboxylate derivatives with high turnover numbers (TONs). Zr6OTf-BTB was also superior to the homogeneous benchmark Sc(OTf)3 with nearly 14 times higher TON and 9 times longer catalyst lifetime. Furthermore, the topology-activity relationships in these Zr-based Lewis acidic MOFs were rationalized by comparing their Lewis acidity, numbers of Lewis acidic sites, and sterically accessible Lewis acidic sites. Zr6OTf-BTB was successfully used to construct several bioactive molecules via MCRs with excellent efficiency. This dimensional reduction strategy should allow the development of other MOF catalysts for synthetically useful and complicated organic transformations.
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Affiliation(s)
- Xuanyu Feng
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Yang Song
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Wenbin Lin
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
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10
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Robertson GP, Farley AJM, Dixon DJ. Silver-Catalyzed Enantioselective Mannich Reaction of Diazoacetate Esters with N-Boc Aldimines. J Org Chem 2020; 85:2785-2792. [PMID: 31870157 DOI: 10.1021/acs.joc.9b03177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The highly enantioselective Mannich reaction of diazoacetate esters with N-Boc aldimines catalyzed by silver(I) triflate in the presence of (R)-DM-SEGPHOS is reported. The reaction is broad in scope with respect to the (hetero)aromatic aldehyde-derived aldimine and tolerates significant variability of the diazoacetate ester component. Yields and enantioselectivities are good to excellent, and the reaction can be performed on a gram scale with catalyst loadings as low as 1 mol %.
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Affiliation(s)
- Gerard P Robertson
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford OX1 3TA , U.K
| | - Alistair J M Farley
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford OX1 3TA , U.K
| | - Darren J Dixon
- Department of Chemistry, Chemistry Research Laboratory , University of Oxford , 12 Mansfield Road , Oxford OX1 3TA , U.K
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11
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Lei J, Song GT, He LJ, Luo YF, Tang DY, Lin HK, Frett B, Li HY, Chen ZZ, Xu ZG. One-pot construction of functionalized aziridines and maleimides via a novel pseudo-Knoevenagel cascade reaction. Chem Commun (Camb) 2020; 56:2194-2197. [PMID: 31971170 DOI: 10.1039/c9cc08220d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
An Ugi, novel pseudo-Knoevenagel, ring expansion cascade reaction was discovered and utilized for the synthesis of aziridinyl succinimides in one-pot. Subsequently, densely functionalized aziridines and maleimides have been designed and synthesized through similar cascade reactions. The target compounds were prepared by means of a mild reaction and a simple operation procedure, which could be applicable to a broad scope of starting materials. This series of novel cascade reactions generates opportunities for the tailored synthesis of a wide range of biologically active scaffolds through tuneable Ugi inputs. Discovery of compound 8i with comparable potency to sorafenib in liver cancer cell lines could provide a new avenue for liver cancer drug discovery.
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Affiliation(s)
- Jie Lei
- College of Pharmacy, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing, 402160, China. and Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
| | - Gui-Ting Song
- College of Pharmacy, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing, 402160, China.
| | - Liu-Jun He
- College of Pharmacy, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing, 402160, China.
| | - Ya-Fei Luo
- College of Pharmacy, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing, 402160, China.
| | - Dian-Yong Tang
- College of Pharmacy, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing, 402160, China.
| | - Hui-Kuan Lin
- Department of Cancer Biology, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina 27157, USA
| | - Brendan Frett
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
| | - Hong-Yu Li
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA.
| | - Zhong-Zhu Chen
- College of Pharmacy, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing, 402160, China.
| | - Zhi-Gang Xu
- College of Pharmacy, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing, 402160, China.
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12
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Liu Z, Luan N, Lu H, Liang A, Li J, Zou D, Wu Y, Wu Y. Boron-Promoted Ether Interchange Reaction: Synthesis of Alkyl Nitroaromatic Ethers from Methoxynitroarenes. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Zhenwei Liu
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
| | - Nannan Luan
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
| | - Hongtao Lu
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
| | - Apeng Liang
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
| | - Jingya Li
- Tetranov Biopharm, LLC. And Collaborative Innovation Center of New Drug Research and Safety Evaluation; 450052 Zhengzhou Henan China
| | - Dapeng Zou
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
| | - Yangjie Wu
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
| | - Yusheng Wu
- The College of Chemistry; Zhengzhou University; Daxue Road No.75 450000 Zhengzhou Henan China
- Tetranov Biopharm, LLC. And Collaborative Innovation Center of New Drug Research and Safety Evaluation; 450052 Zhengzhou Henan China
- Tetranov International, Inc.; 08901 New Brunswick NJ USA
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13
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Tan C, Liu Y, Liu X, Jia H, Xu K, Huang S, Wang J, Tan J. Stereoselective synthesis of trans-aziridines via intramolecular oxidative C(sp3)–H amination of β-amino ketones. Org Chem Front 2020. [DOI: 10.1039/c9qo01489f] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
An expedient strategy for the synthesis of trans-2,3-disubstituted via the intramolecular KI/TBHP mediated oxidative dehydrogenative C(sp3)–H amination reaction was presented.
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Affiliation(s)
- Chen Tan
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Yongguo Liu
- Beijing Key Laboratory of Flavor Chemistry
- Beijing Technology and Business University (BTBU)
- Beijing 100048
- China
| | - Xinyuan Liu
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Huanxin Jia
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Kun Xu
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang
- China
| | - Sihan Huang
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Jingwen Wang
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Jiajing Tan
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- China
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14
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Generating cis-aza-diaryl and triaryl ethers via organoBrønsted acid catalysed aza-Darzens chemistry. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Kardile RD, Liu RS. Two Distinct Ag(I)- and Au(I)-Catalyzed Olefinations between α-Diazo Esters and N-Boc-Derived Imines. Org Lett 2019; 21:6452-6456. [DOI: 10.1021/acs.orglett.9b02343] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Rahul Dadabhau Kardile
- Frontier Research Center on Fundamental and Applied Sciences of Matters, Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC
| | - Rai-Shung Liu
- Frontier Research Center on Fundamental and Applied Sciences of Matters, Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC
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16
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Pan J, Wu J, Zhang H, Ren X, Tan J, Zhu L, Zhang H, Jiang C, Wang T. Highly Enantioselective Synthesis of Fused Tri‐ and Tetrasubstituted Aziridines: aza‐Darzens Reaction of Cyclic Imines with α‐Halogenated Ketones Catalyzed by Bifunctional Phosphonium Salt. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900613] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jianke Pan
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Jia‐Hong Wu
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Hongkui Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Xiaoyu Ren
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Jian‐Ping Tan
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Lixiang Zhu
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Hong‐Su Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Chunhui Jiang
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
- School of Environmental and Chemical EngineeringJiangsu University of Science and Technology 2 Mengxi Road Zhenjiang 212003 P. R. China
| | - Tianli Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
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17
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Pan J, Wu JH, Zhang H, Ren X, Tan JP, Zhu L, Zhang HS, Jiang C, Wang T. Highly Enantioselective Synthesis of Fused Tri- and Tetrasubstituted Aziridines: aza-Darzens Reaction of Cyclic Imines with α-Halogenated Ketones Catalyzed by Bifunctional Phosphonium Salt. Angew Chem Int Ed Engl 2019; 58:7425-7430. [PMID: 30958634 DOI: 10.1002/anie.201900613] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 03/20/2019] [Indexed: 01/07/2023]
Abstract
The first enantioselective aza-Darzens reaction of cyclic imines with α-halogenated ketones was realized under mild reaction conditions by using amino-acid-derived bifunctional phosphonium salts as phase-transfer promoters. A variety of structurally dense tri- and tetrasubstituted aziridine derivatives, containing benzofused heterocycles as well as spiro-structures, were readily synthesized in high yields with excellent diastereo- and enantioselectivities (up to >20:1 d.r. and >99.9 % ee). The highly functionalized aziridine products could be easily transformed into different classes of biologically active compounds.
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Affiliation(s)
- Jianke Pan
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Jia-Hong Wu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Hongkui Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Xiaoyu Ren
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Jian-Ping Tan
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Lixiang Zhu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Hong-Su Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
| | - Chunhui Jiang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China.,School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 2 Mengxi Road, Zhenjiang, 212003, P. R. China
| | - Tianli Wang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, P. R. China
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Stereoselective Multicomponent Reactions in the Synthesis or Transformations of Epoxides and Aziridines. Molecules 2019; 24:molecules24030630. [PMID: 30754666 PMCID: PMC6384726 DOI: 10.3390/molecules24030630] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 02/04/2019] [Accepted: 02/07/2019] [Indexed: 01/14/2023] Open
Abstract
Small ring heterocycles, such as epoxides and aziridines, are present in several natural products and are also highly versatile building blocks, frequently involved in the synthesis of numerous bioactive products and pharmaceuticals. Because of the potential for increased efficiency and selectivity, along with the advantages of environmentally benign synthetic procedures, multicomponent reactions (MCRs) have been explored in the synthesis and ring opening of these heterocyclic units. In this review, the recent advances in MCRs involving the synthesis and applications of epoxides and aziridines to the preparation of other heterocycles are discussed emphasizing the stereoselectivity of the reactions.
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Ray SK, Sadhu MM, Biswas RG, Unhale RA, Singh VK. A General Catalytic Route to Enantioenriched Isoindolinones and Phthalides: Application in the Synthesis of (S)-PD 172938. Org Lett 2019; 21:417-422. [DOI: 10.1021/acs.orglett.8b03597] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Sumit K. Ray
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, MP - 462 066, India
| | - Milon M. Sadhu
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, MP - 462 066, India
| | - Rayhan G. Biswas
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, MP - 462 066, India
| | - Rajshekhar A. Unhale
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, MP - 462 066, India
| | - Vinod K. Singh
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, UP - 208 016, India
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Singh GS. Advances in synthesis and chemistry of aziridines. ADVANCES IN HETEROCYCLIC CHEMISTRY 2019. [DOI: 10.1016/bs.aihch.2018.12.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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21
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Aghahosseini H, Ramazani A, Jalayer NS, Ranjdoost Z, Souldozi A, Ślepokura K, Lis T. Vinylphosphonium Salt-Mediated Reactions: A One-Pot Condensation Approach for the Highly cis-Selective Synthesis of N-Benzoylaziridines and the Green Synthesis of 1,4,2-Dioxazoles as Two Important Classes of Heterocyclic Compounds. Org Lett 2018; 21:22-26. [PMID: 30565459 DOI: 10.1021/acs.orglett.8b03388] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An efficient, one-pot, and convenient approach for the reaction of the same precursors, trialkyl(aryl) phosphines, acetylene diesters, and benzhydroxamic acids has been developed to produce two important classes of heterocyclic compounds: N-benzoylaziridines and 1,4,2-dioxazoles. The strategy utilizes the intermediate solvation as a key step in product selectivity. The usefulness of the developed approach has been confirmed in the unprecedented highly cis-selective formation of the N-benzoylaziridines. In addition, the procedure provides a green alternative method for the synthesis of 1,4,2-dioxazoles employing a β-cyclodextrin nanoreactor in aqueous media.
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Affiliation(s)
- Hamideh Aghahosseini
- Department of Chemistry , University of Zanjan , P.O. Box 45195-313, Zanjan , Iran
| | - Ali Ramazani
- Department of Chemistry , University of Zanjan , P.O. Box 45195-313, Zanjan , Iran
| | | | - Zahra Ranjdoost
- Department of Chemistry , University of Zanjan , P.O. Box 45195-313, Zanjan , Iran
| | - Ali Souldozi
- Department of Chemistry, Urmia Branch , Islamic Azad University , Urmia , Iran
| | - Katarzyna Ślepokura
- Faculty of Chemistry , University of Wrocław , 14 Joliot-Curie St ., 50-383 Wrocław , Poland
| | - Tadeusz Lis
- Faculty of Chemistry , University of Wrocław , 14 Joliot-Curie St ., 50-383 Wrocław , Poland
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22
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de los Santos JM, Ochoa de Retana AM, Martínez de Marigorta E, Vicario J, Palacios F. Catalytic Asymmetric Darzens and Aza‐Darzens Reactions for the Synthesis of Chiral Epoxides and Aziridines. ChemCatChem 2018. [DOI: 10.1002/cctc.201801026] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jesús M. de los Santos
- Departamento de Química Orgánica I Facultad de Farmacia Centro de Investigaciones y Estudios Avanzados “Lucio Lascaray” Universidad del País Vasco UPV/EHU Paseo de la Universidad 7 Vitoria 01006 Spain
| | - Ana M. Ochoa de Retana
- Departamento de Química Orgánica I Facultad de Farmacia Centro de Investigaciones y Estudios Avanzados “Lucio Lascaray” Universidad del País Vasco UPV/EHU Paseo de la Universidad 7 Vitoria 01006 Spain
| | - Edorta Martínez de Marigorta
- Departamento de Química Orgánica I Facultad de Farmacia Centro de Investigaciones y Estudios Avanzados “Lucio Lascaray” Universidad del País Vasco UPV/EHU Paseo de la Universidad 7 Vitoria 01006 Spain
| | - Javier Vicario
- Departamento de Química Orgánica I Facultad de Farmacia Centro de Investigaciones y Estudios Avanzados “Lucio Lascaray” Universidad del País Vasco UPV/EHU Paseo de la Universidad 7 Vitoria 01006 Spain
| | - Francisco Palacios
- Departamento de Química Orgánica I Facultad de Farmacia Centro de Investigaciones y Estudios Avanzados “Lucio Lascaray” Universidad del País Vasco UPV/EHU Paseo de la Universidad 7 Vitoria 01006 Spain
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23
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Recent progress in asymmetric synthesis of aziridine derivatives (microreview). Chem Heterocycl Compd (N Y) 2018. [DOI: 10.1007/s10593-018-2282-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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24
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25
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Bew SP, Liddle J, Hughes DL, Pesce P, Thurston SM. Chiral Brønsted Acid-Catalyzed Asymmetric Synthesis of N-Aryl-cis-aziridine Carboxylate Esters. Angew Chem Int Ed Engl 2017; 56:5322-5326. [PMID: 28378388 PMCID: PMC5502890 DOI: 10.1002/anie.201611990] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 02/22/2016] [Indexed: 12/20/2022]
Abstract
We report a multi‐component asymmetric Brønsted acid‐catalyzed aza‐Darzens reaction which is not limited to specific aromatic or heterocyclic aldehydes. Incorporating alkyl diazoacetates and, important for high ee's, ortho‐tert‐butoxyaniline our optimized reaction (i.e. solvent, temperature and catalyst study) affords excellent yields (61–98 %) and mostly >90 % optically active cis‐aziridines. (+)‐Chloramphenicol was generated in 4 steps from commercial starting materials. A tentative mechanism is outlined.
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Affiliation(s)
- Sean P Bew
- School of Chemistry, Norwich Research Park, University of East Anglia, Norwich, NR4 7TJ, UK
| | - John Liddle
- Department of Medicinal Chemistry, GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, UK
| | - David L Hughes
- School of Chemistry, Norwich Research Park, University of East Anglia, Norwich, NR4 7TJ, UK
| | - Paolo Pesce
- School of Chemistry, Norwich Research Park, University of East Anglia, Norwich, NR4 7TJ, UK
| | - Sean M Thurston
- School of Chemistry, Norwich Research Park, University of East Anglia, Norwich, NR4 7TJ, UK
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