51
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Boultwood T, Bull JA. Stereospecific Functionalization of Iodoaziridines via Unstabilized Aziridinyllithiums Generated by Iodine–Lithium Exchange. Org Lett 2014; 16:2740-3. [DOI: 10.1021/ol501024y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Tom Boultwood
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K
| | - James A. Bull
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K
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52
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Affiliation(s)
- Hiroaki Ohno
- Graduate
School of Pharmaceutical
Sciences, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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53
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Liu Z, Liu J, Zhang L, Liao P, Song J, Bi X. Silver(I)-Catalyzed Hydroazidation of Ethynyl Carbinols: Synthesis of 2-Azidoallyl Alcohols. Angew Chem Int Ed Engl 2014; 53:5305-9. [DOI: 10.1002/anie.201310264] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 01/18/2014] [Indexed: 11/06/2022]
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54
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Liu Z, Liu J, Zhang L, Liao P, Song J, Bi X. Silver(I)-Catalyzed Hydroazidation of Ethynyl Carbinols: Synthesis of 2-Azidoallyl Alcohols. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201310264] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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55
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Dolfen J, Kenis S, Van Hecke K, De Kimpe N, D'hooghe M. Selective synthesis of functionalized trifluoromethylated pyrrolidines, piperidines, and azepanes starting from 1-tosyl-2-(trifluoromethyl)aziridine. Chemistry 2014; 20:10650-3. [PMID: 24523231 DOI: 10.1002/chem.201304759] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Indexed: 11/09/2022]
Abstract
This paper reports on the generation and alkylation of the 1-tosyl-2-(trifluoromethyl)aziridin-2-yl anion with ω,ω'-dihaloalkanes, followed by a novel ring-expansion protocol toward 2-CF3-pyrrolidines, 2-CF3-piperidines, and 3-CF3-azepanes. A variety of halogen, oxygen, nitrogen, sulfur, and carbon nucleophiles was used to trigger this ring rearrangement, resulting in CF3-azaheterocycles bearing different types of functionalized side chains.
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Affiliation(s)
- Jeroen Dolfen
- SynBioC Research Group, Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent (Belgium), Fax: (+32) 9-264-62-21
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56
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Ji MK, Hertsen D, Yoon DH, Eum H, Goossens H, Waroquier M, Van Speybroeck V, D'hooghe M, De Kimpe N, Ha HJ. Nucleophile-dependent regio- and stereoselective ring opening of 1-azoniabicyclo[3.1.0]hexane tosylate. Chem Asian J 2014; 9:1060-7. [PMID: 24488926 DOI: 10.1002/asia.201301551] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 12/09/2013] [Indexed: 11/09/2022]
Abstract
1-[(1R)-(1-Phenylethyl)]-1-azoniabicyclo[3.1.0]hexane tosylate was generated as a stable bicyclic aziridinium salt from the corresponding 2-(3-hydroxypropyl)aziridine upon reaction with p-toluenesulfonyl anhydride. This bicyclic aziridinium ion was then treated with various nucleophiles including halides, azide, acetate, and cyanide in CH3CN to afford either piperidines or pyrrolidines through regio- and stereoselective ring opening, mediated by the characteristics of the applied nucleophile. On the basis of DFT calculations, ring-opening reactions under thermodynamic control yield piperidines, whereas reactions under kinetic control can yield both piperidines and pyrrolidines depending on the activation energies for both pathways.
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Affiliation(s)
- Mi-Kyung Ji
- Department of Chemistry, Hankuk University of Foreign Studies, Yongin, 449-791 (Korea)
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57
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Golz C, Preut H, Strohmann C. rac-2-Phenyl-1-[(2,4,6-triiso-propyl-benzene)-sulfon-yl]aziridine. Acta Crystallogr Sect E Struct Rep Online 2014; 70:o153. [PMID: 24764875 PMCID: PMC3998314 DOI: 10.1107/s1600536814000257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 01/06/2014] [Indexed: 11/10/2022]
Abstract
In the title compound, C23H31NO2S, the geometry of the triiso-propyl-phenyl group is slightly distorted, with elongated C-C bonds at the ipso-C atom, and an S atom which deviates from the benzene ring plane by 0.228 (2) Å. This distortion is caused by the bulky substituents and, in comparison, an unbent geometry is observed in N-toluene-sulfonyl-aziridine [Zhu et al. (2006 ▶). Acta Cryst. E62, o1507-o1508]. π-π inter-actions between adjacent benzene rings [centroid-centroid distance = 3.7928 (11) Å] and are observed.
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Affiliation(s)
- Christopher Golz
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany
| | - Hans Preut
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany
| | - Carsten Strohmann
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany
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58
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Carroccia L, Degennaro L, Romanazzi G, Cuocci C, Pisano L, Luisi R. Straightforward access to 4-membered sulfurated heterocycles: introducing a strategy for the single and double functionalization of thietane 1-oxide. Org Biomol Chem 2014; 12:2180-4. [DOI: 10.1039/c4ob00173g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A strategy for the stereoselective functionalization of thietane 1-oxide has been developed by using the corresponding organometallic intermediates that reacted with electrophiles leaving intact the 4-membered ring.
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Affiliation(s)
- Laura Carroccia
- Department of Pharmacy – Drug Sciences
- University of Bari “A. Moro”
- Bari 70125 – I, Italy
| | - Leonardo Degennaro
- Department of Pharmacy – Drug Sciences
- University of Bari “A. Moro”
- Bari 70125 – I, Italy
| | | | - Corrado Cuocci
- Istituto di Cristallografia (IC-CNR)
- 70125 Bari – I, Italy
| | - Luisa Pisano
- Department of Chemistry and Pharmacy
- University of Sassari
- 07100 Sassari – I, Italy
| | - Renzo Luisi
- Department of Pharmacy – Drug Sciences
- University of Bari “A. Moro”
- Bari 70125 – I, Italy
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59
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Mansueto R, Degennaro L, Brière JF, Griffin K, Shipman M, Florio S, Luisi R. Stereocontrolled lithiation/trapping of chiral 2-alkylideneaziridines: investigation into the role of the aziridine nitrogen stereodynamics. Org Biomol Chem 2014; 12:8505-11. [DOI: 10.1039/c4ob01457j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The origin of the stereoselectivity in the lithiation/trapping of 2-alkylideneaziridines bearing a chiral group as the nitrogen substituent was investigated.
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Affiliation(s)
- Rosmara Mansueto
- Department of Pharmacy – Drug Sciences University of Bari “A. Moro”
- Bari, Italy
- Department of Chemistry
- University of Warwick
- Coventry, UK
| | - Leonardo Degennaro
- Department of Pharmacy – Drug Sciences University of Bari “A. Moro”
- Bari, Italy
| | - Jean-François Brière
- Normandie Univ
- COBRA
- UMR 6014 et FR 3038; Univ Rouen; INSA Rouen; CNRS
- IRCOF
- 76821 Mont Saint Aignan Cedex, France
| | - Karen Griffin
- Department of Chemistry
- University of Warwick
- Coventry, UK
| | | | - Saverio Florio
- Department of Pharmacy – Drug Sciences University of Bari “A. Moro”
- Bari, Italy
| | - Renzo Luisi
- Department of Pharmacy – Drug Sciences University of Bari “A. Moro”
- Bari, Italy
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61
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Degennaro L, Zenzola M, Trinchera P, Carroccia L, Giovine A, Romanazzi G, Falcicchio A, Luisi R. Regioselective functionalization of 2-arylazetidines: evaluating the ortho-directing ability of the azetidinyl ring and the α-directing ability of the N-substituent. Chem Commun (Camb) 2014; 50:1698-700. [DOI: 10.1039/c3cc48555b] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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62
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Boultwood T, Affron DP, Trowbridge AD, Bull JA. Synthesis of cis-C-iodo-N-tosyl-aziridines using diiodomethyllithium: reaction optimization, product scope and stability, and a protocol for selection of stationary phase for chromatography. J Org Chem 2013; 78:6632-47. [PMID: 23738857 PMCID: PMC3805312 DOI: 10.1021/jo400956x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Indexed: 11/29/2022]
Abstract
The preparation of C-iodo-N-Ts-aziridines with excellent cis-diastereoselectivity has been achieved in high yields by the addition of diiodomethyllithium to N-tosylimines and N-tosylimine-HSO2Tol adducts. This addition-cyclization protocol successfully provided a wide range of cis-iodoaziridines, including the first examples of alkyl-substituted iodoaziridines, with the reaction tolerating both aryl imines and alkyl imines. An ortho-chlorophenyl imine afforded a β-amino gem-diiodide under the optimized reaction conditions due to a postulated coordinated intermediate preventing cyclization. An effective protocol to assess the stability of the sensitive iodoaziridine functional group to chromatography was also developed. As a result of the judicious choice of stationary phase, the iodoaziridines could be purified by column chromatography; the use of deactivated basic alumina (activity IV) afforded high yield and purity. Rearrangements of electron-rich aryl-iodoaziridines have been promoted, selectively affording either novel α-iodo-N-Ts-imines or α-iodo-aldehydes in high yield.
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Affiliation(s)
- Tom Boultwood
- Department of Chemistry, Imperial College
London, South Kensington, London SW7 2AZ, United Kingdom
| | - Dominic P. Affron
- Department of Chemistry, Imperial College
London, South Kensington, London SW7 2AZ, United Kingdom
| | - Aaron D. Trowbridge
- Department of Chemistry, Imperial College
London, South Kensington, London SW7 2AZ, United Kingdom
| | - James A. Bull
- Department of Chemistry, Imperial College
London, South Kensington, London SW7 2AZ, United Kingdom
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63
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Jin LM, Xu X, Lu H, Cui X, Wojtas L, Zhang XP. Effective synthesis of chiral N-fluoroaryl aziridines through enantioselective aziridination of alkenes with fluoroaryl azides. Angew Chem Int Ed Engl 2013; 52:5309-13. [PMID: 23589338 PMCID: PMC3825981 DOI: 10.1002/anie.201209599] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2012] [Revised: 02/17/2013] [Indexed: 12/16/2022]
Affiliation(s)
- Li-Mei Jin
- Department of Chemistry, University of South Florida Tampa, FL 33620-5250 (USA), Fax: (+1) 813-974-1733; http://chemistry.usf.edu/faculty/zhang/
| | - Xue Xu
- Department of Chemistry, University of South Florida Tampa, FL 33620-5250 (USA), Fax: (+1) 813-974-1733; http://chemistry.usf.edu/faculty/zhang/
| | - Hongjian Lu
- Department of Chemistry, University of South Florida Tampa, FL 33620-5250 (USA), Fax: (+1) 813-974-1733; http://chemistry.usf.edu/faculty/zhang/
| | - Xin Cui
- Department of Chemistry, University of South Florida Tampa, FL 33620-5250 (USA), Fax: (+1) 813-974-1733; http://chemistry.usf.edu/faculty/zhang/
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida Tampa, FL 33620-5250 (USA), Fax: (+1) 813-974-1733; http://chemistry.usf.edu/faculty/zhang/
| | - X. Peter Zhang
- Department of Chemistry, University of South Florida Tampa, FL 33620-5250 (USA), Fax: (+1) 813-974-1733; http://chemistry.usf.edu/faculty/zhang/
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64
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Bull JA, Boultwood T, Taylor TA. Highly cis-selective synthesis of iodo-aziridines using diiodomethyllithium and in situ generated N-Boc-imines. Chem Commun (Camb) 2013; 48:12246-8. [PMID: 23149421 DOI: 10.1039/c2cc37029h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The first preparation of iodoaziridines is described. The addition of diiodomethyllithium to N-Boc-imines affords these novel aziridines in high yields. The reaction proceeds in one-pot via a highly diastereoselective cyclisation of an amino gem-diiodide intermediate.
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Affiliation(s)
- James A Bull
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, UK.
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65
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Abstract
An aziridinyl stannatrane 8 couples with aryl or alkenyl halides RX under modified Stille conditions to afford substituted aziridines. Efficient coupling at room temperature is possible in the best examples in the presence of ((t)Bu3P)2Pd and CuOP(O)Ph2 (CuDPP).
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Affiliation(s)
- Naresh Theddu
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, USA
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66
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Jin LM, Xu X, Lu H, Cui X, Wojtas L, Zhang XP. Effective Synthesis of ChiralN-Fluoroaryl Aziridines through Enantioselective Aziridination of Alkenes with Fluoroaryl Azides. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209599] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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67
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Hughes M, Boultwood T, Zeppetelli G, Bull JA. Palladium-catalyzed cross-coupling of aziridinylmetal species, generated by sulfinyl-magnesium exchange, with aryl bromides: reaction optimization, scope, and kinetic investigations. J Org Chem 2013; 78:844-54. [PMID: 23311879 DOI: 10.1021/jo3027824] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A series of novel, highly substituted N-PMP aziridines have been accessed in high yields by palladium-catalyzed cross-coupling of intact aziridines. The cross-coupling employed aryl bromides and tertiary organometallic aziridines, generated from sulfinylaziridines by sulfinyl-magnesium exchange and transmetalation to the aziridinylzinc with zinc chloride. A wide range of electron-rich and electron-poor aryl bromides were utilized to afford the functionalized aziridine products as single diastereoisomers with retention of configuration at the reacting center. Assessment of the reaction kinetics showed zero-order in both the aziridine species and the aryl bromide. This indicated that the rate-determining step was reductive elimination from the palladium(II) species bearing both the aziridine and aryl groups to form the hindered C-C bond. The intermediate aziridinylzinc species underwent a progressive, background degradation that led to a plateau in yield and afforded reduced yields in substrates with ortho-substituted aryl groups, which are less reactive due to the additional steric demands.
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Affiliation(s)
- Matthew Hughes
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, UK
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68
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Giovine A, Musio B, Degennaro L, Falcicchio A, Nagaki A, Yoshida JI, Luisi R. Synthesis of 1,2,3,4-Tetrahydroisoquinolines by Microreactor-Mediated Thermal Isomerization of Laterally Lithiated Arylaziridines. Chemistry 2013; 19:1872-6. [DOI: 10.1002/chem.201203533] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2012] [Indexed: 11/10/2022]
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69
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De Fusco C, Fuoco T, Croce G, Lattanzi A. Noncovalent organocatalytic synthesis of enantioenriched terminal aziridines with a quaternary stereogenic center. Org Lett 2012; 14:4078-81. [PMID: 22857601 DOI: 10.1021/ol3017066] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A high-yielding and enantioselective access to novel N-Boc terminal aziridines, bearing a quaternary stereogenic center, has been developed via an aza-Michael initiated ring-closure (aza-MIRC) reaction of α-acyl acrylates with an N-tosyloxy tert-butyl carbamate catalyzed by a chiral amino thiourea. The feasibility of the aziridine regioselective ring-opening to valuable α,α-disubstituted α-amino acid esters has been demonstrated.
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Affiliation(s)
- Claudia De Fusco
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Ponte don Melillo, 84084 Fisciano, Italy
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70
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Trinchera P, Musio B, Degennaro L, Moliterni A, Falcicchio A, Luisi R. One-pot preparation of piperazines by regioselective ring-opening of non-activated arylaziridines. Org Biomol Chem 2012; 10:1962-5. [DOI: 10.1039/c2ob07099e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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71
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Maeda R, Ishibashi R, Kamaishi R, Hirotaki K, Furuno H, Hanamoto T. AgSbF6-Promoted Cycloaddition Reaction of 2-Trifluoromethyl-N-tosylaziridine with Aldehydes. Org Lett 2011; 13:6240-3. [DOI: 10.1021/ol202697y] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ryoko Maeda
- Department of Chemistry and Applied Chemistry, Saga University, Honjyo-machi 1, Saga 840-8502, Japan, and Institute for Material Chemistry and Engineering (IMCE), Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Rie Ishibashi
- Department of Chemistry and Applied Chemistry, Saga University, Honjyo-machi 1, Saga 840-8502, Japan, and Institute for Material Chemistry and Engineering (IMCE), Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Ryo Kamaishi
- Department of Chemistry and Applied Chemistry, Saga University, Honjyo-machi 1, Saga 840-8502, Japan, and Institute for Material Chemistry and Engineering (IMCE), Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Kensuke Hirotaki
- Department of Chemistry and Applied Chemistry, Saga University, Honjyo-machi 1, Saga 840-8502, Japan, and Institute for Material Chemistry and Engineering (IMCE), Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Hiroshi Furuno
- Department of Chemistry and Applied Chemistry, Saga University, Honjyo-machi 1, Saga 840-8502, Japan, and Institute for Material Chemistry and Engineering (IMCE), Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
| | - Takeshi Hanamoto
- Department of Chemistry and Applied Chemistry, Saga University, Honjyo-machi 1, Saga 840-8502, Japan, and Institute for Material Chemistry and Engineering (IMCE), Kyushu University, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan
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72
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Patwardhan NN, Gao M, Carlier PR. Incremental Solvation Precedes Ion-Pair Separation in Enantiomerization of a Cyano-Stabilized Grignard Reagent. Chemistry 2011; 17:12250-3. [DOI: 10.1002/chem.201102253] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Indexed: 11/11/2022]
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73
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74
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Degennaro L, Mansueto R, Carenza E, Rizzi R, Florio S, Pratt LM, Luisi R. Nitrogen Dynamics and Reactivity of Chiral Aziridines: Generation of Configurationally Stable Aziridinyllithium Compounds. Chemistry 2011; 17:4992-5003. [PMID: 21465584 DOI: 10.1002/chem.201003424] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Indexed: 11/09/2022]
Affiliation(s)
- Leonardo Degennaro
- Dipartimento Farmaco-Chimico, University of Bari, Aldo Moro, Via E. Orabona 4, 70125-Bari, Italy
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75
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Azzena U, Dettori G, Pisano L, Musio B, Luisi R. BH3-Promoted Stereoselective β-Lithiation of N-Alkyl-2-phenylaziridines. J Org Chem 2011; 76:2291-5. [PMID: 21366274 DOI: 10.1021/jo102474u] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ugo Azzena
- Dipartimento di Chimica, Università di Sassari, via Vienna 2, I-07100 Sassari, Italy
| | - Giovanna Dettori
- Dipartimento di Chimica, Università di Sassari, via Vienna 2, I-07100 Sassari, Italy
| | - Luisa Pisano
- Dipartimento di Chimica, Università di Sassari, via Vienna 2, I-07100 Sassari, Italy
| | - Biagia Musio
- Dipartimento Farmaco-Chimico, Università degli Studi di Bari, Aldo Moro, Via E. Orabona 4, I-70125, Bari, Italy
| | - Renzo Luisi
- Dipartimento Farmaco-Chimico, Università degli Studi di Bari, Aldo Moro, Via E. Orabona 4, I-70125, Bari, Italy
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76
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de Ceglie MC, Musio B, Affortunato F, Moliterni A, Altomare A, Florio S, Luisi R. Solvent- and Temperature-Dependent Functionalisation of Enantioenriched Aziridines. Chemistry 2010; 17:286-96. [PMID: 21207624 DOI: 10.1002/chem.201002172] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Indexed: 11/08/2022]
Affiliation(s)
- Maria Carolina de Ceglie
- Dipartimento Farmaco Chimico, Università degli Studi di Bari A. Moro, Via E. Orabona, 4 70125 Bari, Italy
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77
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Aaseng JE, Gautun OR. Synthesis of substituted (S)-2-aminotetralins via ring-opening of aziridines prepared from l-aspartic acid β-tert-butyl ester. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.09.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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78
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Nelson JM, Vedejs E. Metalated aziridines for cross-coupling with aryl and alkenyl halides via palladium catalysis. Org Lett 2010; 12:5085-7. [PMID: 20945857 DOI: 10.1021/ol101904a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The palladium-catalyzed coupling of an aziridinylzinc chloride intermediate with alkenyl and aryl halides has been demonstrated. The method provides products with retention of aziridine stereochemistry. The utility of the coupling procedure is illustrated in the synthesis of structures related to l-furanomycin.
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Affiliation(s)
- John M Nelson
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
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Hodgson DM, Xu Z. α,β-Aziridinylphosphonates by lithium amide-induced phosphonyl migration from nitrogen to carbon in terminal aziridines. Beilstein J Org Chem 2010; 6:978-83. [PMID: 21085508 PMCID: PMC2981828 DOI: 10.3762/bjoc.6.110] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2010] [Accepted: 09/28/2010] [Indexed: 11/23/2022] Open
Abstract
N-Phosphonate terminal aziridines undergo lithium 2,2,6,6-tetramethylpiperidide-induced N- to C-[1,2]-anionic phosphonyl group migration under experimentally straightforward conditions, to provide a stereocontrolled access to synthetically valuable trans-α,β-aziridinylphosphonates. The utility of this chemistry has been demonstrated in the asymmetric synthesis of a β-aminophosphonate.
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Affiliation(s)
- David M Hodgson
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK.
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