1
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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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2
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Banuprakash Goud S, Lal Dhakar R, Samanta S. Copper(I)-Photocatalyzed Diastereoselective Aziridination of N-Sulfonyl Imines with Vinyl Azides: Application to Benzo[f][1,2,3]oxathiazepines Dioxides and Fused Isoxazolines. Chem Asian J 2024; 19:e202300904. [PMID: 38018300 DOI: 10.1002/asia.202300904] [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: 10/13/2023] [Revised: 11/27/2023] [Accepted: 11/27/2023] [Indexed: 11/30/2023]
Abstract
An in situ generated photoactive copper(I)-complex-catalyzed aziridination reaction of cyclic N-sulfonyl imines with α-aryl-substituted vinyl azides irradiated by blue-LEDs light is reported for the first time. This novel SET process represents a mild, sustainable, and pragmatic method for accessing synthetically resourceful sulfamidate-fused aziridines in acceptable chemical yields with excellent diastereoselectivities. Delightedly, pharmacologically attractive benzo[f][1,2,3]oxathiazepine dioxides and fused isoxazoline frameworks were achieved through our newly developed metal-free based ring-expansion techniques, highlighting the synthetic value of accessed aziridines. Finally, the possible mechanism for [2+1] aza-cyclization was presented based on the conduction of a series of control experiments.
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Affiliation(s)
- S Banuprakash Goud
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, 453552, Madhya Pradesh, India
| | - Raju Lal Dhakar
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, 453552, Madhya Pradesh, India
| | - Sampak Samanta
- Department of Chemistry, Indian Institute of Technology Indore, Simrol, 453552, Madhya Pradesh, India
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3
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Zheng F, Zhou J, Fang F, Li J, Wang J, Zheng M, Liu H, Xu Y, Zhou Y. Rh(III)-Catalyzed C-H Activation and [4+1+1] Sequential Cyclization Cascade to Give Highly Fused Indano[1,2- b]azirines. Org Lett 2022; 24:5688-5692. [PMID: 35921178 DOI: 10.1021/acs.orglett.2c02070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A Rh(III)-catalyzed C-H activation of α-keto oximes and a cyclization cascade with diazo compounds were developed to construct the highly fused indano[1,2-b]azirine frameworks in good yields with a broad range of substrates under mild reaction conditions. More intriguingly, a [4+1+1] sequential annulation cascade is demonstrated for the first time in this reaction and opened a new reaction mode for α-keto oximes. These fused indano[1,2-b]azirine derivatives could also be further transformed into intriguing privileged drug scaffolds.
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Affiliation(s)
- Fuqiang Zheng
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China.,State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Jianhui Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Feifei Fang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Jiyuan Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Jing Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Miao Zheng
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China
| | - Hong Liu
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China.,State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China.,School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Yungen Xu
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, China
| | - Yu Zhou
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, China.,School of Pharmaceutical Science and Technology, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
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4
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Achuenu C, Carret S, Poisson J, Berthiol F. Application of Chiral Sulfinamides into Formation and Reduction of Sulfinylketimines to Obtain Valuable α‐Chiral Primary Amines. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000608] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Chukuka Achuenu
- Département de Chimie Moléculaire (SERCO) UMR CNRS‐UGA5250, ICMG FR‐2607 Université Grenoble Alpes 301 Rue de la Chimie, BP 53 38058 Grenoble Cedex 9 France
| | - Sébastien Carret
- Département de Chimie Moléculaire (SERCO) UMR CNRS‐UGA5250, ICMG FR‐2607 Université Grenoble Alpes 301 Rue de la Chimie, BP 53 38058 Grenoble Cedex 9 France
| | - Jean‐François Poisson
- Département de Chimie Moléculaire (SERCO) UMR CNRS‐UGA5250, ICMG FR‐2607 Université Grenoble Alpes 301 Rue de la Chimie, BP 53 38058 Grenoble Cedex 9 France
| | - Florian Berthiol
- Département de Chimie Moléculaire (SERCO) UMR CNRS‐UGA5250, ICMG FR‐2607 Université Grenoble Alpes 301 Rue de la Chimie, BP 53 38058 Grenoble Cedex 9 France
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5
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Basha SF, Anwar S. A Three Component Protocol for the Synthesis of Aziridines using BF3·(OEt)2. ACTA ACUST UNITED AC 2020. [DOI: 10.14233/ajchem.2020.22315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Synthesis of N-(1R,2S)-2-(bromo-3-oxo-1,3-diphenylpropyl)-4-methylbenzene sulfonamide and N-(1R,2S)-(2-bromo-3-oxo-1,3-diphenylpropyl)-4-methylbenzene sulfonamide was carried out by a three component reaction using phenacyl bromide, p-toluenesulfonamide and carboxyaldehyde in presence of mild Lewis acid such as BF3·(OEt)2 in dichloromethane. The synthetic utility of this protocol was carried out with syn-isomer to yield corresponding cis-aziridines. This protocol was operationally simple for a wide variety of substituted carboxaldehydes and substituted phenacyl bromides.
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Affiliation(s)
- Shaik Firoj Basha
- Division of Chemistry, Department of Sciences and Humanities, Vignan′s Foundation for Science, Technology and Research-VFSTR (Deemed to be University), Vadlamudi, Guntur-522213, India
| | - Shaik Anwar
- Division of Chemistry, Department of Sciences and Humanities, Vignan′s Foundation for Science, Technology and Research-VFSTR (Deemed to be University), Vadlamudi, Guntur-522213, India
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6
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Yus M, Foubelo F, Maciá E. Indium Mediated Allylation of N-tert-Butanesulfinyl Imines with 1,3-Dibromopropene: Stereoselective Synthesis of Aziridines. HETEROCYCLES 2019. [DOI: 10.3987/com-18-s(f)18] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Qin S, Liu T, Luo Y, Jiang S, Yang G. Diastereoselective Rh-catalyzed decarboxylative allylation to form quaternary stereocenters using sulfinimine as the directing group. Org Chem Front 2019; 6:732-735. [DOI: 10.1039/c8qo01258j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/14/2024]
Abstract
In this paper, we reported for the first time that the diastereoselective Rh-catalyzed decarboxylative allylation of chiral sulfinimines could be used to form quaternary stereocenters.
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Affiliation(s)
- Shuanglin Qin
- The State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Tongtong Liu
- The State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Yunhao Luo
- The State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Nankai University
- Tianjin 300071
- People's Republic of China
| | - Shende Jiang
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin 300072
- People's Republic of China
| | - Guang Yang
- The State Key Laboratory of Medicinal Chemical Biology
- College of Pharmacy
- Nankai University
- Tianjin 300071
- People's Republic of China
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8
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Kazak M, Priede M, Shubin K, Bartrum HE, Poisson JF, Suna E. Stereodivergent Synthesis of Pseudotabersonine Alkaloids. Org Lett 2017; 19:5356-5359. [PMID: 28901770 DOI: 10.1021/acs.orglett.7b02635] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An eight-step stereodivergent synthesis of enantiomerically pure (-)-14-epi-pseudotabersonine and (+)-pseudotabersonine has been developed from a common N-tert-butanesulfinyl ketimine key intermediate.
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Affiliation(s)
- Mihail Kazak
- Latvian Institute of Organic Synthesis , Aizkraukles 21, LV-1006, Riga, Latvia
| | - Martins Priede
- Latvian Institute of Organic Synthesis , Aizkraukles 21, LV-1006, Riga, Latvia
| | - Kirill Shubin
- Latvian Institute of Organic Synthesis , Aizkraukles 21, LV-1006, Riga, Latvia
| | - Hannah E Bartrum
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250 , 38000 Grenoble, France
| | | | - Edgars Suna
- Latvian Institute of Organic Synthesis , Aizkraukles 21, LV-1006, Riga, Latvia
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9
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Lahosa A, Soler T, Arrieta A, Cossío FP, Foubelo F, Yus M. Stereoselective Coupling of N-tert-Butanesulfinyl Aldimines and β-Keto Acids: Access to β-Amino Ketones. J Org Chem 2017; 82:7481-7491. [PMID: 28661149 DOI: 10.1021/acs.joc.7b01178] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The reaction of chiral N-tert-butanesulfinyl aldimines with β-keto acids under basic conditions at room temperature proceeds with high levels of diastereocontrol, leading to β-amino ketones in high yields. Based on DFT calculations, an eight-membered cyclic transition state involving coordination of the lithium atom to the oxygens of carboxylate and sulfinyl units was proposed, being in agreement with the observed experimental diastereomeric ratios. The synthesis of the piperidine alkaloid (-)-pelletierine was successfully undertaken in order to demonstrate the utility of this methodology.
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Affiliation(s)
- Alejandro Lahosa
- Departamento de Química Orgánica, Facultad de Ciencias, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Alicante , Apdo. 99, 03080 Alicante, Spain.,Instituto de Síntesis Orgánica (ISO), Universidad de Alicante , Apdo. 99, 03080 Alicante, Spain
| | - Tatiana Soler
- Servicios Técnicos de Investigación, Universidad de Alicante , Apdo. 99, 03080 Alicante, Spain
| | - Ana Arrieta
- Departamento de Quı́mica Organica I and Centro de Innovación en Química Avanzada (ORFEO CINQA), University of the Basque Country (UPV/EHU) , P° Manuel Lardizabal 3, 20018 Donostia/San Sebastian, Spain
| | - Fernando P Cossío
- Departamento de Quı́mica Organica I and Centro de Innovación en Química Avanzada (ORFEO CINQA), University of the Basque Country (UPV/EHU) , P° Manuel Lardizabal 3, 20018 Donostia/San Sebastian, Spain
| | - Francisco Foubelo
- Departamento de Química Orgánica, Facultad de Ciencias, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Alicante , Apdo. 99, 03080 Alicante, Spain.,Instituto de Síntesis Orgánica (ISO), Universidad de Alicante , Apdo. 99, 03080 Alicante, Spain
| | - Miguel Yus
- Departamento de Química Orgánica, Facultad de Ciencias, and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Universidad de Alicante , Apdo. 99, 03080 Alicante, Spain
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10
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Peng P, Wu JJ, Liang JQ, Zhang TY, Huang JW, Wu FH. Lithium triethylborohydride-promoted generation of α,α-difluoroenolates from 2-iodo-2,2-difluoroacetophenones: an unprecedented utilization of lithium triethylborohydride. RSC Adv 2017. [DOI: 10.1039/c7ra12130j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Lithium triethylborohydride was found to promote the generation of α,α-difluoroenolates from 2-iodo-2,2-difluoroacetophenones, and applied to the synthesis of polyfluorinated β-hydroxy ketones via self-condensation or aldol reaction.
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Affiliation(s)
- Peng Peng
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- China
| | - Jing-jing Wu
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- China
- Key Laboratory of Organofluorine Chemistry
| | - Jun-qing Liang
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- China
| | - Tian-yu Zhang
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- China
| | - Jin-wen Huang
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- China
- Key Laboratory of Organofluorine Chemistry
| | - Fan-hong Wu
- School of Chemical and Environmental Engineering
- Shanghai Institute of Technology
- Shanghai 201418
- China
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11
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Pace V, Holzer W, De Kimpe N. Lithium Halomethylcarbenoids: Preparation and Use in the Homologation of Carbon Electrophiles. CHEM REC 2016; 16:2061-76. [PMID: 27381551 DOI: 10.1002/tcr.201600011] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Indexed: 11/06/2022]
Abstract
α-Halomethyllithium carbenoids are useful homologating reagents which - reacting under proper reaction conditions as carbanions - enable the installation via nucleophilic addition of a reactive halomethyl fragment onto a preformed carbon-heteroatom bond. The pronounced thermolability represented - since seminal studies by Köbrich - the Achilles' heel of these reagents: the use of Barbier-type methodologies (i.e., the electrophile should be present in the reaction mixture prior to the formation of the carbenoid) was pivotal in order to suppress decomposition through α-elimination processes. Nowadays, the use of low temperatures (-78 °C) guarantees reliable procedures and, significantly, the employment of microreactor technologies allows external trapping to be performed even at higher temperatures as reported by Luisi. We will discuss the α-halomethyllithium-mediated homologations of a series of carbon electrophiles such as carbonyl compounds, imines, esters, Weinreb amides, and isocyanates.
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Affiliation(s)
- Vittorio Pace
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse 14, A-1090, Vienna, Austria
| | - Wolfgang Holzer
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse 14, A-1090, Vienna, Austria
| | - Norbert De Kimpe
- Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering Ghent University, Coupure Links 653, B-9000, Ghent, Belgium
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12
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Mukherjee P, Das AR. Facile synthesis of functionalized 6-cyano-2-oxa-7-azabicyclo[4.1.0]hept-3-en-1-yl acetates: a catalyst free approach to access the pyran fused 2-acetoxy-NH-aziridines. RSC Adv 2016. [DOI: 10.1039/c5ra24510a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel pyran fused 2-acetoxy-NH-aziridine scaffold was constructed by reacting the enamine fragment of 4-H-pyrans and spiropyrans using iodobenzene diacetate under catalyst free environment.
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Affiliation(s)
- Prasun Mukherjee
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
| | - Asish R. Das
- Department of Chemistry
- University of Calcutta
- Kolkata-700009
- India
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13
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Liu T, Chen LY, Sun Z. Asymmetric Reduction of tert-Butanesulfinyl Ketimines by N-Heterocyclic Carbene Boranes. J Org Chem 2015; 80:11441-6. [DOI: 10.1021/acs.joc.5b02084] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tao Liu
- College of Chemistry and
Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, China
| | - Ling-yan Chen
- College of Chemistry and
Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, China
| | - Zhihua Sun
- College of Chemistry and
Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Road, Shanghai, China
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14
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Boultwood T, Affron DP, Bull JA. Studies on the synthesis of α-iodoaziridines and improved conditions for the synthesis of alkyl-α-iodoaziridines using ClMgCHI2. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.05.098] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Nonn M, Kiss L, Haukka M, Fustero S, Fülöp F. A Novel and Selective Fluoride Opening of Aziridines by XtalFluor-E. Synthesis of Fluorinated Diamino Acid Derivatives. Org Lett 2015; 17:1074-7. [DOI: 10.1021/acs.orglett.5b00182] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
| | | | - Matti Haukka
- Department
of Chemistry, University of Jyväskylä, FIN-40014, Jyväskylä, Finland
| | - Santos Fustero
- Universidad de Valencia, Facultad de Farmàcia,
Departamento de Química Orgánica, Av. Vicente Andrés Estellés, s/n 46100 Valencia, Spain
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16
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Kuprov I, Hodgson DM, Kloesges J, Pearson CI, Odell B, Claridge TDW. Anomalous Nuclear Overhauser Effects in Carbon-Substituted Aziridines: Scalar Cross-Relaxation of the First Kind. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201410271] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Kuprov I, Hodgson DM, Kloesges J, Pearson CI, Odell B, Claridge TDW. Anomalous nuclear Overhauser effects in carbon-substituted aziridines: scalar cross-relaxation of the first kind. Angew Chem Int Ed Engl 2015; 54:3697-701. [PMID: 25631552 PMCID: PMC4506550 DOI: 10.1002/anie.201410271] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 11/24/2014] [Indexed: 11/15/2022]
Abstract
Anomalous NOESY cross-peaks that cannot be explained by dipolar cross-relaxation or chemical exchange are described for carbon-substituted aziridines. The origin of these is identified as scalar cross-relaxation of the first kind, as demonstrated by a complete theoretical description of this relaxation process and by computational simulation of the NOESY spectra. It is shown that this process relies on the stochastic modulation of J-coupling by conformational transitions, which in the case of aziridines arise from inversion at the nitrogen center. The observation of scalar cross-relaxation between protons does not appear to have been previously reported for NOESY spectra. Conventional analysis would have assigned the cross-peaks as being indicative of a chemical exchange process occurring between correlated spins, were it not for the fact that the pairs of nuclei displaying them cannot undergo such exchange.
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Affiliation(s)
- Ilya Kuprov
- School of Chemistry, University of Southampton, Highfield Campus, Southampton SO17 1BJ (UK)
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18
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Synthesis of densely functionalized cispentacin derivatives through selective aziridination and aziridine opening reactions: orthogonally protected di- and triaminocyclopentanecarboxylates. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.09.071] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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19
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Degennaro L, Trinchera P, Luisi R. Recent advances in the stereoselective synthesis of aziridines. Chem Rev 2014; 114:7881-929. [PMID: 24823261 DOI: 10.1021/cr400553c] [Citation(s) in RCA: 326] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Leonardo Degennaro
- Department of Pharmacy-Drug Sciences, University of Bari "A. Moro" , Via Edoardo Orabona 4, Bari 70125, Italy
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20
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Priede M, Kazak M, Kalnins T, Shubin K, Suna E. Diastereoselective Hydroxymethylation of Cyclic N-tert-Butanesulfinylketimines Using Methoxymethanol as Formaldehyde Source. J Org Chem 2014; 79:3715-24. [DOI: 10.1021/jo500506u] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Martins Priede
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006, Riga, Latvia
| | - Mihail Kazak
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006, Riga, Latvia
| | - Toms Kalnins
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006, Riga, Latvia
| | - Kirill Shubin
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006, Riga, Latvia
| | - Edgars Suna
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006, Riga, Latvia
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21
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Li D, Li Y, Chen Z, Shang H, Li H, Ren X. Stereoselective synthesis of α-(dichloromethyl)-amines, α-(chloromethyl)amines, and α-chloro-aziridines. RSC Adv 2014. [DOI: 10.1039/c4ra00471j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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22
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Callebaut G, Colpaert F, Nonn M, Kiss L, Sillanpää R, Törnroos KW, Fülöp F, De Kimpe N, Mangelinckx S. Asymmetric synthesis of chloroisothreonine derivatives via syn-stereoselective Mannich-type additions across N-sulfinyl-α-chloroimines. Org Biomol Chem 2014; 12:3393-405. [DOI: 10.1039/c4ob00243a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mannich-type reactions across N-sulfinyl-α-chloroaldimines resulted in syn-stereoselective synthesis of chloroisothreonine derivatives as excellent building blocks.
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Affiliation(s)
- Gert Callebaut
- Department of Sustainable Organic Chemistry and Technology
- Faculty of Bioscience Engineering
- Ghent University
- B-9000 Ghent, Belgium
| | - Filip Colpaert
- Department of Sustainable Organic Chemistry and Technology
- Faculty of Bioscience Engineering
- Ghent University
- B-9000 Ghent, Belgium
| | - Melinda Nonn
- Institute of Pharmaceutical Chemistry and Stereochemistry Research Group of the Hungarian Academy of Sciences
- Szeged, Eötvös u. 6, Hungary
| | - Loránd Kiss
- Institute of Pharmaceutical Chemistry and Stereochemistry Research Group of the Hungarian Academy of Sciences
- Szeged, Eötvös u. 6, Hungary
| | - Reijo Sillanpää
- Department of Chemistry
- University of Jyväskylä
- Fin-40351 Jyväskylä, Finland
| | - Karl W. Törnroos
- Department of Chemistry
- University of Bergen
- N-5007 Bergen, Norway
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry and Stereochemistry Research Group of the Hungarian Academy of Sciences
- Szeged, Eötvös u. 6, Hungary
| | - Norbert De Kimpe
- Department of Sustainable Organic Chemistry and Technology
- Faculty of Bioscience Engineering
- Ghent University
- B-9000 Ghent, Belgium
| | - Sven Mangelinckx
- Department of Sustainable Organic Chemistry and Technology
- Faculty of Bioscience Engineering
- Ghent University
- B-9000 Ghent, Belgium
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23
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Pablo Ó, Guijarro D, Yus M. Synthesis of Nitrogenated Heterocycles by Asymmetric Transfer Hydrogenation of N-(tert-Butylsulfinyl)haloimines. J Org Chem 2013; 78:9181-9. [DOI: 10.1021/jo4014386] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Óscar Pablo
- Departamento de Química
Orgánica, Facultad de Ciencias and Instituto de Síntesis
Orgánica (ISO), Universidad de Alicante, Apartado 99, 03080 Alicante, Spain
| | - David Guijarro
- Departamento de Química
Orgánica, Facultad de Ciencias and Instituto de Síntesis
Orgánica (ISO), Universidad de Alicante, Apartado 99, 03080 Alicante, Spain
| | - Miguel Yus
- Departamento de Química
Orgánica, Facultad de Ciencias and Instituto de Síntesis
Orgánica (ISO), Universidad de Alicante, Apartado 99, 03080 Alicante, Spain
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24
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Kattamuri PV, Xiong Y, Pan Y, Li G. N,N-DIIsopropyl-N-phosphonyl imines lead to efficient asymmetric synthesis of aziridine-2-carboxylic esters. Org Biomol Chem 2013; 11:3400-8. [PMID: 23563304 PMCID: PMC3653188 DOI: 10.1039/c3ob40251g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly diastereoselective asymmetric synthesis of chiral aziridine-2-carboxylic esters is reported for 20 examples with good yields (51-87%) and excellent diastereoselectivities (>99:1 dr for most cases). The modified N-phosphonyl imines have proven to be superior to previous imine auxiliaries for the aza Darzens reaction by using a secondary isopropyl group to replace the primary benzyl group for N,N-diamino protection. In the meanwhile, a special operation by slowly adding the pre-cooled imine solution at -78 °C into the preformed β-bromo lithium enolate mixture at this temperature in the presence of 4 Å molecular sieves was found to be crucial in terms of yields and diastereoselectivity. The present method can provide an easy and general access to β-hydroxy α-amino acids and other important amino building blocks.
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Affiliation(s)
- Padmanabha V. Kattamuri
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
| | - Yiwen Xiong
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Yi Pan
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Guigen Li
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, USA
- Institute of Chemistry & BioMedical Sciences, Nanjing University, Nanjing 210093, P. R. China
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25
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Callebaut G, Mangelinckx S, Van der Veken P, Törnroos KW, Augustyns K, De Kimpe N. Asymmetric synthesis of γ-chloro-α,β-diamino- and β,γ-aziridino-α-aminoacylpyrrolidines and -piperidines via stereoselective Mannich-type additions of N-(diphenylmethylene)glycinamides across α-chloro-N-sulfinylimines. Beilstein J Org Chem 2012; 8:2124-31. [PMID: 23243474 PMCID: PMC3520569 DOI: 10.3762/bjoc.8.239] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Accepted: 11/08/2012] [Indexed: 11/23/2022] Open
Abstract
The asymmetric synthesis of new chiral γ-chloro-α,β-diaminocarboxylamide derivatives by highly diastereoselective Mannich-type reactions of N-(diphenylmethylene)glycinamides across chiral α-chloro-N-p-toluenesulfinylaldimines was developed. The resulting (SS,2S,3S)-γ-chloro-α,β-diaminocarboxylamides were formed with the opposite enantiotopic face selectivity as compared to the (SS,2R,3R)-γ-chloro-α,β-diaminocarboxyl esters obtained via Mannich-type addition of analogous N-(diphenylmethylene)glycine esters across a chiral α-chloro-N-p-toluenesulfinylaldimine. Selective deprotection under different acidic reaction conditions and ring closure of the γ-chloro-α,β-diaminocarboxylamides was optimized, which resulted in Nα-deprotected syn-γ-chloro-α,β-diaminocarboxylamides, N-sulfinyl-β,γ-aziridino-α-aminocarboxylamide derivatives, a trans-imidazolidine, and an Nα,Nβ-deprotected syn-γ-chloro-α,β-diaminocarboxylamide.
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Affiliation(s)
- Gert Callebaut
- Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium, Tel: +32 (0)9 264 59 51
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26
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Wu X, Li L, Zhang J. Direct Aza-Darzens Aziridination ofN-Tosylimines with 2-Bromomalonates for the Synthesis of Highly Functionalized Donor-Acceptor Aziridines. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200628] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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27
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Colpaert F, Mangelinckx S, Denolf B, De Kimpe N. Rearrangement of N-tert-Butanesulfinyl α-Halo Imines with Alkoxides to N-tert-Butanesulfinyl 2-Amino Acetals as Precursors of N-Protected and N-Unprotected α-Amino Carbonyl Compounds. J Org Chem 2012; 77:6023-32. [DOI: 10.1021/jo300752c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Filip Colpaert
- Department of Sustainable Organic
Chemistry and Technology,
Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Sven Mangelinckx
- Department of Sustainable Organic
Chemistry and Technology,
Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Bram Denolf
- Department of Sustainable Organic
Chemistry and Technology,
Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Norbert De Kimpe
- Department of Sustainable Organic
Chemistry and Technology,
Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
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28
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Wei J, Chen Z, Gao Y, Zhang P, Wang C, Zhao P, Wang Y, Shi X. A Rapid and Simple Method for Quantitative Aziridination from Aminobrominated Derivatives of Olefins under Solvent-free and Mild Conditions. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201100176] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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29
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Pablo Ó, Guijarro D, Kovács G, Lledós A, Ujaque G, Yus M. A Versatile Ru Catalyst for the Asymmetric Transfer Hydrogenation of Both Aromatic and Aliphatic Sulfinylimines. Chemistry 2012; 18:1969-83. [DOI: 10.1002/chem.201102426] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Revised: 10/14/2011] [Indexed: 11/07/2022]
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30
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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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31
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Zhang Y, Chitale S, Goyal N, Li G, Han ZS, Shen S, Ma S, Grinberg N, Lee H, Lu BZ, Senanayake CH. Asymmetric Synthesis of Sulfinamides Using (−)-Quinine as Chiral Auxiliary. J Org Chem 2011; 77:690-5. [DOI: 10.1021/jo201825b] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yongda Zhang
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield,
Connecticut 06877, United States
| | - Sampada Chitale
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield,
Connecticut 06877, United States
| | - Navneet Goyal
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield,
Connecticut 06877, United States
| | - Guisheng Li
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield,
Connecticut 06877, United States
| | - Zhengxu S. Han
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield,
Connecticut 06877, United States
| | - Sherry Shen
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield,
Connecticut 06877, United States
| | - Shengli Ma
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield,
Connecticut 06877, United States
| | - Nelu Grinberg
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield,
Connecticut 06877, United States
| | - Heewon Lee
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield,
Connecticut 06877, United States
| | - Bruce Z. Lu
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield,
Connecticut 06877, United States
| | - Chris H. Senanayake
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield,
Connecticut 06877, United States
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32
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Xu H, Tian H, Zheng L, Liu Q, Wang L, Zhang S. One-pot and microwave-assisted synthesis of N-sulfonylaziridines. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.03.106] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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33
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Reddy LR, Gupta AP, Liu Y. Asymmetric Synthesis of α-Amino Acids by Reduction of N-tert-Butanesulfinyl Ketimine Esters. J Org Chem 2011; 76:3409-15. [DOI: 10.1021/jo200401a] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Leleti Rajender Reddy
- Chemical and Analytical Development, Novartis Pharmaceuticals Corporation, East Hanover, New Jersey 07936, United States
| | - Aditya P. Gupta
- Chemical and Analytical Development, Novartis Pharmaceuticals Corporation, East Hanover, New Jersey 07936, United States
| | - Yugang Liu
- Chemical and Analytical Development, Novartis Pharmaceuticals Corporation, East Hanover, New Jersey 07936, United States
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34
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Martjuga M, Belyakov S, Liepinsh E, Suna E. Asymmetric Synthesis of 1,3-Diamines. II: Diastereoselective Reduction of Atropisomeric N-tert-Butanesulfinylketimines. J Org Chem 2011; 76:2635-47. [DOI: 10.1021/jo1025767] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Marina Martjuga
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
| | - Sergey Belyakov
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
| | - Edvards Liepinsh
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
| | - Edgars Suna
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
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35
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Colpaert F, Mangelinckx S, De Kimpe N. Asymmetric Synthesis of Chiral N-Sulfinyl 3-Alkyl- and 3-Arylpiperidines by α-Alkylation of N-Sulfinyl Imidates with 1-Chloro-3-iodopropane. J Org Chem 2010; 76:234-44. [DOI: 10.1021/jo1020807] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Filip Colpaert
- Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Sven Mangelinckx
- Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Norbert De Kimpe
- Department of Sustainable Organic Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
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36
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37
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Mei H, Yan L, Han J, Li G, Pan Y. One-pot highly stereoselective synthesis of cyano aziridines via the CuCl-catalyzed aminochlorination of α,β-unsaturated nitriles and intramolecular S(N) 2 substitution. Chem Biol Drug Des 2010; 76:392-6. [PMID: 20880018 DOI: 10.1111/j.1747-0285.2010.01023.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient one-pot system has been developed for the synthesis of cyano aziridine by using α,β-unsaturated nitriles as the alkene substrates and N,N-dichloro-p-toluenesulfonamide (4-TsNCl(2) ) as the nitrogen source. A good scope of alkene substrates was achieved for this reaction. The one-pot reaction, via aminohalogenation and intramolecular S(N) 2 substitution, was very convenient to carry out at room temperature without the protection of inert gases. Modest to good yields and excellent have been obtained. This method provides an easy route to the cyano aziridine. The structure of the resulting products has been unambiguously confirmed by X-ray structural analysis.
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38
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Robak MT, Herbage MA, Ellman JA. Synthesis and applications of tert-butanesulfinamide. Chem Rev 2010; 110:3600-740. [PMID: 20420386 DOI: 10.1021/cr900382t] [Citation(s) in RCA: 908] [Impact Index Per Article: 64.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- MaryAnn T Robak
- Department of Chemistry, University of California, Berkeley, California 94720, USA
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39
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Guijarro D, Pablo Ó, Yus M. Asymmetric Synthesis of Chiral Primary Amines by Transfer Hydrogenation of N-(tert-Butanesulfinyl)ketimines. J Org Chem 2010; 75:5265-70. [DOI: 10.1021/jo101057s] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David Guijarro
- Departamento de Química Orgánica, Facultad de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante (Spain)
| | - Óscar Pablo
- Departamento de Química Orgánica, Facultad de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante (Spain)
| | - Miguel Yus
- Departamento de Química Orgánica, Facultad de Ciencias and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante (Spain)
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40
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Martjuga M, Shabashov D, Belyakov S, Liepinsh E, Suna E. Asymmetric Synthesis of 1,3-Diamines by Diastereoselective Reduction of Enantiopure N-tert-Butanesulfinylketimines: Unusual Directing Effects of the ortho-Substituent. J Org Chem 2010; 75:2357-68. [DOI: 10.1021/jo100173f] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Marina Martjuga
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
| | - Dmitry Shabashov
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
| | - Sergey Belyakov
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
| | - Edvards Liepinsh
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
| | - Edgars Suna
- Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
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41
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42
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Liu XG, Wei Y, Shi M. Phosphite-mediated annulation: an efficient protocol for the synthesis of multi-substituted cyclopropanes and aziridines. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.10.099] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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43
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Colpaert F, Mangelinckx S, Leemans E, Denolf B, De Kimpe N. Asymmetric synthesis of new chiral N-sulfinyl 2,2-disubstituted aziridines by Grignard additions across α-chloro N-sulfinyl ketimines. Org Biomol Chem 2010; 8:3251-8. [DOI: 10.1039/c001471k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Leemans E, Mangelinckx S, De Kimpe N. Asymmetric synthesis of 2-arylpyrrolidines starting from γ-chloro N-(tert-butanesulfinyl)ketimines. Chem Commun (Camb) 2010; 46:3122-4. [DOI: 10.1039/b925209f] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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45
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Zhu XQ, Liu QY, Chen Q, Mei LR. Hydride, Hydrogen, Proton, and Electron Affinities of Imines and Their Reaction Intermediates in Acetonitrile and Construction of Thermodynamic Characteristic Graphs (TCGs) of Imines as a “Molecule ID Card”. J Org Chem 2009; 75:789-808. [DOI: 10.1021/jo902332n] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiao-Qing Zhu
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin 300071, China
| | - Qiao-Yun Liu
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin 300071, China
| | - Qiang Chen
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin 300071, China
| | - Lian-Rui Mei
- State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin 300071, China
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46
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Bew SP, Fairhurst SA, Hughes DL, Legentil L, Liddle J, Pesce P, Nigudkar S, Wilson MA. Organocatalytic Aziridine Synthesis Using F+ Salts. Org Lett 2009; 11:4552-5. [DOI: 10.1021/ol901784m] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sean P. Bew
- School of Chemistry, University of East Anglia, Norwich, U.K., Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, Department of Medicinal Chemistry, GlaxoSmithKline Research & Development, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, U.K
| | - Shirley A. Fairhurst
- School of Chemistry, University of East Anglia, Norwich, U.K., Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, Department of Medicinal Chemistry, GlaxoSmithKline Research & Development, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, U.K
| | - David L. Hughes
- School of Chemistry, University of East Anglia, Norwich, U.K., Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, Department of Medicinal Chemistry, GlaxoSmithKline Research & Development, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, U.K
| | - Laurent Legentil
- School of Chemistry, University of East Anglia, Norwich, U.K., Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, Department of Medicinal Chemistry, GlaxoSmithKline Research & Development, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, U.K
| | - John Liddle
- School of Chemistry, University of East Anglia, Norwich, U.K., Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, Department of Medicinal Chemistry, GlaxoSmithKline Research & Development, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, U.K
| | - Paolo Pesce
- School of Chemistry, University of East Anglia, Norwich, U.K., Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, Department of Medicinal Chemistry, GlaxoSmithKline Research & Development, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, U.K
| | - Sanket Nigudkar
- School of Chemistry, University of East Anglia, Norwich, U.K., Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, Department of Medicinal Chemistry, GlaxoSmithKline Research & Development, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, U.K
| | - Martin A. Wilson
- School of Chemistry, University of East Anglia, Norwich, U.K., Department of Biological Chemistry, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, Department of Medicinal Chemistry, GlaxoSmithKline Research & Development, Medicines Research Centre, Gunnels Wood Road, Stevenage, Hertfordshire, U.K
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47
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Guijarro D, Pablo Ó, Yus M. Ruthenium-catalysed asymmetric transfer hydrogenation of N-(tert-butanesulfinyl)imines. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.07.044] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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48
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Groeper JA, Eagles JB, Hitchcock SR. A facile, one-pot synthesis of Ephedra-based aziridines. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.07.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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49
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Colpaert F, Mangelinckx S, Verniest G, De Kimpe N. Asymmetric Synthesis of α-Alkylated N-Sulfinyl Imidates as New Chiral Building Blocks. J Org Chem 2009; 74:3792-7. [DOI: 10.1021/jo900046t] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Filip Colpaert
- Department of Organic Chemistry, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Sven Mangelinckx
- Department of Organic Chemistry, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Guido Verniest
- Department of Organic Chemistry, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
| | - Norbert De Kimpe
- Department of Organic Chemistry, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, B-9000 Ghent, Belgium
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Concellón JM, Rodríguez-Solla H, Bernad PL, Simal C. Addition Reactions of Chloro- or Iodomethyllithium to Imines. Synthesis of Enantiopure Aziridines and β-Chloroamines. J Org Chem 2009; 74:2452-9. [DOI: 10.1021/jo802596y] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- José M. Concellón
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, 33071 Oviedo, Spain
| | - Humberto Rodríguez-Solla
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, 33071 Oviedo, Spain
| | - Pablo L. Bernad
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, 33071 Oviedo, Spain
| | - Carmen Simal
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, 33071 Oviedo, Spain
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