1
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Ding Z, Wang Z, Wang Y, Wang X, Xue Y, Xu M, Zhang H, Xu L, Li P. Regio- and Diastereoselective Synthesis of Polysubstituted Piperidines Enabled by Boronyl Radical-Catalyzed (4+2) Cycloaddition. Angew Chem Int Ed Engl 2024; 63:e202406612. [PMID: 38924325 DOI: 10.1002/anie.202406612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/20/2024] [Accepted: 06/21/2024] [Indexed: 06/28/2024]
Abstract
Piperidines are widely present in small molecule drugs and natural products. Despite many methods have been developed for their synthesis, new approaches to polysubstituted piperidines are highly desirable. This work presents a radical (4+2) cycloaddition reaction for synthesis of piperidines featuring dense substituents at 3,4,5-positions that are not readily accessible by known methods. Using commercially available diboron(4) compounds and 4-phenylpyridine as the catalyst precursors, the boronyl radical-catalyzed cycloaddition between 3-aroyl azetidines and various alkenes, including previously unreactive 1,2-di-, tri-, and tetrasubstituted alkenes, has delivered the polysubstituted piperidines in generally high yield and diastereoselectivity. The reaction also features high modularity, atom economy, broad substrate scope, metal-free conditions, simple catalysts and operation. The utilization of the products has been demonstrated by selective transformations. A plausible mechanism, with the ring-opening of azetidine as the rate-limiting step, has been proposed based on the experimental and computational results.
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Affiliation(s)
- Zhengwei Ding
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi, 710054, China
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710054, China
| | - Zhijun Wang
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Yingying Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710054, China
| | - Xicheng Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710054, China
| | - Yuanji Xue
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710054, China
| | - Ming Xu
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710054, China
| | - Hailong Zhang
- School of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi, 710054, China
| | - Liang Xu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Pengfei Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710054, China
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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2
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Alexeev MS, Strelkova TV, Ilyin MM, Nelyubina YV, Bespalov IA, Medvedev MG, Khrustalev VN, Kuznetsov NY. Amine adducts of triallylborane as highly reactive allylborating agents for Cu(I)-catalyzed allylation of chiral sulfinylimines. Org Biomol Chem 2024; 22:4680-4696. [PMID: 38716901 DOI: 10.1039/d4ob00291a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
The implementation of selective catalytic processes with highly active reagents is an attractive strategy that meets the modern principles of sustainable development of chemistry. In the current study, we for the first time describe the method and general principles of Cu(I)-catalyzed allylation of imines with amine adducts of allylic triorganoboranes. Triallylborane is an extremely reactive compound and cannot be used for the catalytic allylation of imines, whereas its amine adducts are ideal substrates for catalysis. The structure of the amine fragment successfully balances the safety, selectivity and stability of the allylboron reagent, allowing it to demonstrate high activity in catalytic allylation reactions, exceeding many times any known allylboranes. The obtained results are supported by quantitative kinetics data and DFT calculations. The catalytic efficacy of the system was demonstrated on model sulfinylimines (23 examples). High diastereoselectivity up to >99% was achieved, including for the gram-scale synthesis of 2-hydroxyphenyl-derivatives. Taking into account the high reactivity and unsurpassed atom-economy of amine adducts of triallylborane (AAT), they can be considered as prospective allylation reagents with Cu(I) and other appropriate metallocatalysts.
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Affiliation(s)
- Michael S Alexeev
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
| | - Tatiana V Strelkova
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
| | - Michael M Ilyin
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
| | - Yulia V Nelyubina
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
| | - Ivan A Bespalov
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
- Lomonosov Moscow State University, Leninskie Gory 1 (3), Moscow, 119991, Russian Federation
| | - Michael G Medvedev
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
| | - Victor N Khrustalev
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
- Peoples Friendship University of Russia, Miklukho-Maklay st. 6, 117198 Moscow, Russian Federation
| | - Nikolai Yu Kuznetsov
- A.N. Nesmeyanov Institute of Organoelement compounds, Russian Academy of Sciences, Vavilov st. 28, 119991 Moscow, Russian Federation.
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninsky Prospect 29, 119991 Moscow, Russian Federation
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3
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Le Roch M, Renault J, Argouarch G, Lenci E, Trabocchi A, Roisnel T, Gouault N, Lalli C. Synthesis and Chemoinformatic Analysis of Fluorinated Piperidines as 3D Fragments for Fragment-Based Drug Discovery. J Org Chem 2024; 89:4932-4946. [PMID: 38451837 DOI: 10.1021/acs.joc.4c00143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
The concise synthesis of a small library of fluorinated piperidines from readily available dihydropyridinone derivatives has been described. The effect of the fluorination on different positions has then been evaluated by chemoinformatic tools. In particular, the compounds' pKa's have been calculated, revealing that the fluorine atoms notably lowered their basicity, which is correlated to the affinity for hERG channels resulting in cardiac toxicity. The "lead-likeness" and three-dimensionality have also been evaluated to assess their ability as useful fragments for drug design. A random screening on a panel of representative proteolytic enzymes was then carried out and revealed that one scaffold is recognized by the catalytic pocket of 3CLPro (main protease of SARS-CoV-2 coronavirus).
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Affiliation(s)
- Myriam Le Roch
- Univ Rennes, CNRS, ISCR-UMR 6226, Rennes F-35000, France
| | | | | | - Elena Lenci
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, Sesto Fiorentino, Florence 50019, Italy
| | - Andrea Trabocchi
- Department of Chemistry "Ugo Schiff", University of Florence, Via della Lastruccia 13, Sesto Fiorentino, Florence 50019, Italy
| | - Thierry Roisnel
- Univ Rennes, Centre de Diffractométrie X (CDIFX), ISCR-UMR 6226, Rennes F-35000, France
| | | | - Claudia Lalli
- Univ Rennes, CNRS, ISCR-UMR 6226, Rennes F-35000, France
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4
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Bunu MI, Ikhile MI, Tonga Lembe J, Kamdem Kengne MH, Fotsing MCD, Arderne C, Rhyman L, Mmutlane EM, Ramasami P, Ndinteh DT. Isolation, crystal structure and DFT study of 2,2,6,6-tetramethyl-4-oxo-piperidinium nitrate isolated from the stembark of Vitex doniana (Lamiaceae). Nat Prod Res 2024; 38:539-543. [PMID: 36170226 DOI: 10.1080/14786419.2022.2127706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 09/12/2022] [Indexed: 10/14/2022]
Abstract
We present the results of the analysis of 2,2,6,6-tetramethyl-4-oxo-piperidinium nitrate isolated from the stem bark of Vitex doniana, a tree growing in Nigeria. The low-temperature molecular structure comprises one 2,2,6,6-tetramethyl-4-oxopiperidinium cation and one nitrate anion as one molecule in the asymmetric unit. The compound crystallizes in the monoclinic space group P21/n. A portion of the nitrate anion exhibits positional disorder with the main disorder component present 66.253(2) % of the time and the minor disorder component present 33.279(2) % of the time. In comparison with the previously reported room-temperature structure of C9H18N2O4 . The low-temperature structure shows similarity with the piperidinium ring adopting a slightly deformed chair conformation while the nitrate anion is disordered. DFT method was used to complement the experimental study.
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Affiliation(s)
- Musa Ismaila Bunu
- Centre for Natural Product Research (CNPR), Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
- Department of Chemistry, Federal College of Education, Kontagora, Nigeria
| | - Monisola Itohan Ikhile
- Drug Discovery and Smart Molecules Research Laboratory, Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
| | - Jordan Tonga Lembe
- Drug Discovery and Smart Molecules Research Laboratory, Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
- Centre for Natural Product Research (CNPR), Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
- Research Center for Synthesis and Catalysis, Department of Chemical sciences, University of Johannesburg, Johannesburg, South Africa
| | - Michael Hermann Kamdem Kengne
- Drug Discovery and Smart Molecules Research Laboratory, Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
- Centre for Natural Product Research (CNPR), Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
- Research Center for Synthesis and Catalysis, Department of Chemical sciences, University of Johannesburg, Johannesburg, South Africa
| | - Marthe Carine Djuidje Fotsing
- Drug Discovery and Smart Molecules Research Laboratory, Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
- Centre for Natural Product Research (CNPR), Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
| | - Charmaine Arderne
- Centre for Natural Product Research (CNPR), Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
- Research Center for Synthesis and Catalysis, Department of Chemical sciences, University of Johannesburg, Johannesburg, South Africa
| | - Lydia Rhyman
- Centre for Natural Product Research (CNPR), Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
- Computational Chemistry Group, Department of Chemistry, Faculty of Science, University of Mauritius, Réduit, Mauritius
| | - Edwin Mpho Mmutlane
- Centre for Natural Product Research (CNPR), Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
- Research Center for Synthesis and Catalysis, Department of Chemical sciences, University of Johannesburg, Johannesburg, South Africa
| | - Ponnadurai Ramasami
- Centre for Natural Product Research (CNPR), Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
- Computational Chemistry Group, Department of Chemistry, Faculty of Science, University of Mauritius, Réduit, Mauritius
| | - Derek Tantoh Ndinteh
- Drug Discovery and Smart Molecules Research Laboratory, Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
- Centre for Natural Product Research (CNPR), Department of Chemical Sciences, University of Johannesburg, Doornfontein, South Africa
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5
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Zhang B, Ruan J, Seidel D, Chen W. Palladium-Catalyzed Arylation of Endocyclic 1-Azaallyl Anions: Concise Synthesis of Unprotected Enantioenriched cis-2,3-Diarylpiperidines. Angew Chem Int Ed Engl 2023; 62:e202307638. [PMID: 37461285 PMCID: PMC10530244 DOI: 10.1002/anie.202307638] [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: 05/31/2023] [Accepted: 07/17/2023] [Indexed: 07/29/2023]
Abstract
Unprotected cis-2,3-diarylpiperidines are synthesized through an unprecedented palladium-catalyzed cross-coupling reaction between aryl halides and elusive endocyclic 1-azaallyl anions. These intermediates are generated in situ by the deprotonation of 2-aryl-1-piperideines, precursors that are readily prepared in two operations from simple piperidines. An asymmetric version of this reaction with (2R, 3R)-iPr-BI-DIME as the ligand provides products in moderate to good yields and enantioselectivities. This study significantly expands the synthetic utility of endocyclic 1-azaallyl anions.
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Affiliation(s)
- Biao Zhang
- School of Chemical Science and Engineering, Institute for Advanced Studies, Tongji University, 1239 Siping Rd, Shanghai, 200092, P. R. of China
| | - Junhao Ruan
- School of Chemical Science and Engineering, Institute for Advanced Studies, Tongji University, 1239 Siping Rd, Shanghai, 200092, P. R. of China
| | - Daniel Seidel
- Center for Heterocyclic Compounds, Department of Chemistry, University of Florida, Gainesville, FL 32611, USA
| | - Weijie Chen
- School of Chemical Science and Engineering, Institute for Advanced Studies, Tongji University, 1239 Siping Rd, Shanghai, 200092, P. R. of China
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6
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Stereoselective one-pot synthesis of multi-substituted (2Z,4E)-2,4-dienamides from ketene dithioacetal and their solid-state fluorescence. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04537-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Park S, Lee S, Kim JH, Choi WJ, Kim S. Memory of Chirality in the Asymmetric Synthesis of Piperidines with Vicinal Stereocenters by Intramolecular Sn2' Reaction. Chem Asian J 2021; 16:3097-3101. [PMID: 34432952 DOI: 10.1002/asia.202100669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/27/2021] [Indexed: 11/10/2022]
Abstract
Intramolecular Sn2' cyclization of α-amino ester enolates provided piperidine derivatives with vicinal quaternary-tertiary stereocenters with excellent diastereo- and enantioselectivity via memory of chirality and the Thorpe-Ingold effect. DFT calculations provided a mechanistic rationale for the increase in chirality preservation via the Thorpe-Ingold effect. This new method has the potential to be integrated into concise asymmetric synthesis of bioactive molecules containing multisubstituted piperidine moieties.
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Affiliation(s)
- Seungbae Park
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Seokwoo Lee
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Jae Hyun Kim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea.,College of Pharmacy, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon, Gangwon-do, 24341, Republic of Korea
| | - Won Jun Choi
- College of Pharmacy, Dongguk University-Seoul, Goyang, 410-820, Republic of Korea
| | - Sanghee Kim
- College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
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8
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Mittapalli RR, Coles SJ, Klooster WT, Dobbs AP. A Stereoselective aza-Prins Reaction: Rapid Access to Enantiopure Piperidines and Pipecolic Acids. J Org Chem 2021; 86:2076-2089. [PMID: 33417453 DOI: 10.1021/acs.joc.0c01897] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The aza-Prins reaction is a widely employed and highly efficient method for the preparation of saturated nitrogen-containing heterocycles. Its major drawback has always been a lack of diastereoselectivity and the formation of racemic products. Herein, we address these problems and report, for the first time, the synthesis of both diastereomerically and enantiopure multiply substituted piperidines via the aza-Prins reaction. This method is widely applicable for natural product synthesis and is exemplified here by the synthesis of enantiopure pipecolic acid derivatives.
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Affiliation(s)
| | - Simon J Coles
- UK National Crystallography Service, University of Southampton, University Road, Southampton SO17 1BJ, United Kingdom
| | - Wim T Klooster
- UK National Crystallography Service, University of Southampton, University Road, Southampton SO17 1BJ, United Kingdom
| | - Adrian P Dobbs
- School of Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, United Kingdom
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9
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Khandare SP, Reddy PO, Prasad KR. Addition of Lithium Anion of (Acetylmethylene)triphenylphosphorane to Nonracemic Sulfinimines: Total Synthesis of (+)-241D and Formal Total Synthesis of (+)-Preussin. Org Lett 2020; 22:7273-7277. [PMID: 32852218 DOI: 10.1021/acs.orglett.0c02608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The addition of lithium anion of (acetylmethylene)triphenylphosphorane to nonracemic sulfinimines was investigated. It was found that the addition proceeded with good diastereoselectivity and further reaction of the formed sulfinimidophosphorane with several aldehydes afforded the β-sulfinamido substituted enones in good yields. The resultant enones were elaborated to the synthesis of alkaloid (+)-241D, to the formal total synthesis of (+)-preussin, and to the synthesis of aminocyclopentenol.
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Affiliation(s)
- Sopan P Khandare
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Polimera Obula Reddy
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Kavirayani R Prasad
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
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10
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Srivastava N, Macha L, Ha HJ. Stereoselective synthesis of 2,6-disubstituted piperidine alkaloids. Org Biomol Chem 2020; 18:5493-5512. [PMID: 32478370 DOI: 10.1039/d0ob00918k] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Among the large number of structurally diverse alkaloids, 2,6-disubstituted piperidine and its analogs have often been targeted when exploiting new synthetic techniques perhaps because of their strong pharmacological properties. This review outlines synthetic strategies to build the 2,6-disubstituted piperidine structural motif with a focus on stereochemical control of two substituents at C2 and C6. The key reactions in this process are then classified on the basis of how the piperidine rings were built with specific examples of natural products that control the stereochemical outcomes and their transition states.
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Affiliation(s)
- Nikhil Srivastava
- Department of Chemistry, Hankuk University of Foreign Studies, Yongin 17035, Korea.
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11
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Llobat A, Escorihuela J, Sedgwick DM, Rodenes M, Román R, Soloshonok VA, Han J, Medio‐Simón M, Fustero S. The Ruthenium‐Catalyzed Domino Cross Enyne Metathesis/Ring‐Closing Metathesis in the Synthesis of Enantioenriched Nitrogen‐Containing Heterocycles. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000598] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Alberto Llobat
- Departamento de Química Orgánica Universitat de València Av. Vicent Andrés Estellés s/n 46100 Burjassot Valencia Spain
| | - Jorge Escorihuela
- Departamento de Química Orgánica Universitat de València Av. Vicent Andrés Estellés s/n 46100 Burjassot Valencia Spain
| | - Daniel M. Sedgwick
- Departamento de Química Orgánica Universitat de València Av. Vicent Andrés Estellés s/n 46100 Burjassot Valencia Spain
| | - Miriam Rodenes
- Departamento de Química Orgánica Universitat de València Av. Vicent Andrés Estellés s/n 46100 Burjassot Valencia Spain
| | - Raquel Román
- Departamento de Química Orgánica Universitat de València Av. Vicent Andrés Estellés s/n 46100 Burjassot Valencia Spain
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I Faculty of Chemistry University of the Basque Country 20018 San Sebastian Spain
- Basque Foundation for Science IKERBASQUE 48011 Bilbao Spain
| | - Jianlin Han
- Jiangsu Co‐Innovation Center of Efficient Processing and Utilization of Forest Resources College of Chemical Engineering Nanjing Forestry University 210037 Jiangsu People's Republic of China
| | - Mercedes Medio‐Simón
- Departamento de Química Orgánica Universitat de València Av. Vicent Andrés Estellés s/n 46100 Burjassot Valencia Spain
| | - Santos Fustero
- Departamento de Química Orgánica Universitat de València Av. Vicent Andrés Estellés s/n 46100 Burjassot Valencia Spain
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12
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Escolano M, Guerola M, Torres J, Gaviña D, Alzuet-Piña G, Sánchez-Rosello M, del Pozo C. Organocatalytic enantioselective synthesis of 2,5,5-trisubstituted piperidines bearing a quaternary stereocenter. Vinyl sulfonamide as a new amine protecting group. Chem Commun (Camb) 2020; 56:1425-1428. [DOI: 10.1039/c9cc09113k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An organocatalytic desymmetrizing IMAMR with vinyl sulfonamides as nitrogen nucleophiles has been devised with good levels of diastereo- and enantioselectivity.
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Affiliation(s)
- Marcos Escolano
- Department of Organic Chemistry
- University of Valencia
- Valencia
- Spain
| | - Marta Guerola
- Department of Organic Chemistry
- University of Valencia
- Valencia
- Spain
| | - Javier Torres
- Department of Organic Chemistry
- University of Valencia
- Valencia
- Spain
| | - Daniel Gaviña
- Department of Organic Chemistry
- University of Valencia
- Valencia
- Spain
| | | | | | - Carlos del Pozo
- Department of Organic Chemistry
- University of Valencia
- Valencia
- Spain
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13
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Larsen MA, Hennessy ET, Deem MC, Lam YH, Saurí J, Sather AC. A Modular and Diastereoselective 5 + 1 Cyclization Approach to N-(Hetero)Aryl Piperidines. J Am Chem Soc 2019; 142:726-732. [DOI: 10.1021/jacs.9b13114] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Matthew A. Larsen
- Department of Discovery Chemistry, Merck & Co., Inc., Boston, Massachusetts 02115, United States
| | - Elisabeth T. Hennessy
- Department of Discovery Chemistry, Merck & Co., Inc., Boston, Massachusetts 02115, United States
| | - Madeleine C. Deem
- Department of Process Research and Development, Merck & Co., Inc., Boston, Massachusetts 02115, United States
| | - Yu-hong Lam
- Computational and Structural Chemistry, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
| | - Josep Saurí
- Analytical Research and Development, Merck & Co., Inc., Boston, Massachusetts 02115, United States
| | - Aaron C. Sather
- Department of Process Research and Development, Merck & Co., Inc., Boston, Massachusetts 02115, United States
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14
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Ou W, Lu GS, An D, Han F, Huang PQ. Two-Step Catalytic Transformation of N
-Benzyllactams to Alkaloids (±)-Solenopsin, (±)-Solenopsin A, and (+)-Julifloridine. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901752] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Wei Ou
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Guang-Sheng Lu
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Dong An
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Feng Han
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
| | - Pei-Qiang Huang
- Department of Chemistry; Fujian Provincial Key Laboratory of Chemical Biology; College of Chemistry and Chemical Engineering; Xiamen University; 361005 Xiamen Fujian P. R. China
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15
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Guo Y, Harutyunyan SR. Highly Enantioselective Catalytic Addition of Grignard Reagents to N-Heterocyclic Acceptors. Angew Chem Int Ed Engl 2019; 58:12950-12954. [PMID: 31257687 PMCID: PMC6772156 DOI: 10.1002/anie.201906237] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 06/23/2019] [Indexed: 01/14/2023]
Abstract
General methods to prepare chiral N‐heterocyclic molecular scaffolds are greatly sought after because of their significance in medicinal chemistry. Described here is the first general catalytic methodology to access a wide variety of chiral 2‐ and 4‐substituted tetrahydro‐quinolones, dihydro‐4‐pyridones, and piperidones with excellent yields and enantioselectivities, utilizing a single catalyst system.
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Affiliation(s)
- Yafei Guo
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
| | - Syuzanna R Harutyunyan
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands
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16
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Guo Y, Harutyunyan SR. Highly Enantioselective Catalytic Addition of Grignard Reagents to N‐Heterocyclic Acceptors. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906237] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yafei Guo
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Syuzanna R. Harutyunyan
- Stratingh Institute for Chemistry University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
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17
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Briccolani-Bandini L, Brandi A, Cardini G, Chelli R, Cordero FM, Gellini C, Pagliai M. Computational Investigation of the Selective Cleavage of Diastereotopic Cyclopropane Bonds in 5-Spirocyclopropane Isoxazolidines Rearrangement. J Org Chem 2019; 84:6757-6764. [PMID: 31042393 DOI: 10.1021/acs.joc.9b00499] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The complete path of the Brandi-Guarna rearrangement of 5-spirocyclopropane isoxazolidines has been investigated by means of density functional theory calculations to rationalize the competing formation of tetrahydropyridones and enaminones by the determination of the minimum energy reaction paths. Our calculations confirm that the rearrangement is triggered by the homolysis of the isoxazolidine N-O bond followed by cleavage of one of the two C-CH2 cyclopropane bonds as previously proposed by the Fabian group [ Eur. J. Org. Chem. 2001, 2001, 4223]. In addition, the results of this work suggest that in the presence of a stereogenic center at isoxazolidine C-4', the formation of a piperidinone or an enaminone as the final product depends on which of the two diastereotopic C-CH2 bonds of cyclopropane is cleaved in the second step of the process. The result can be of great interest for the understanding of other processes involving the opening of a cyclopropane ring.
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Affiliation(s)
- Lorenzo Briccolani-Bandini
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
| | - Alberto Brandi
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
| | - Gianni Cardini
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
| | - Riccardo Chelli
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
| | - Franca M Cordero
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
| | - Cristina Gellini
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
| | - Marco Pagliai
- Dipartimento di Chimica "Ugo Schiff" , Università di Firenze , Via della Lastruccia 3 , Sesto Fiorentino, 50019 Firenze , Italy
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18
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Idzik TJ, Myk ZM, Sośnicki JG. Diversity-Oriented Synthesis toward Fused and Bridged Benzobicyclic Piperidin(on)es. J Org Chem 2019; 84:8046-8066. [PMID: 31125233 DOI: 10.1021/acs.joc.9b00920] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An efficient diverse synthesis of cis-fused indenopiperidines and bridged benzomorphanones, starting from cyclopropane-fused benzomorphanothiones and benzomorphanones, respectively, using NaBH4/NiCl2·6H2O/EtOH as a reducing system, is described. High rigidity of substrates allowed axially controlled syntheses of their trans-mono-alkylated derivatives, subsequently enabling access to both trans-alkyl-functionalized benzobicyclic piperidin(on)es. Diversity-oriented synthesis of naphthalene ring-containing fused naphthoindenopiperidines and bridged naphthomorphanone directly from 2-pyridones was also performed.
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Affiliation(s)
- Tomasz J Idzik
- Faculty of Chemical Technology and Engineering, Department of Organic and Physical Chemistry , West Pomeranian University of Technology , Al. Piastów 42 , Szczecin 71-065 , Poland
| | - Zofia M Myk
- Faculty of Chemical Technology and Engineering, Department of Organic and Physical Chemistry , West Pomeranian University of Technology , Al. Piastów 42 , Szczecin 71-065 , Poland
| | - Jacek G Sośnicki
- Faculty of Chemical Technology and Engineering, Department of Organic and Physical Chemistry , West Pomeranian University of Technology , Al. Piastów 42 , Szczecin 71-065 , Poland
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19
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Lahosa A, Yus M, Foubelo F. Enantiodivergent Approach to the Synthesis of Cis-2,6-Disubstituted Piperidin-4-ones. J Org Chem 2019; 84:7331-7341. [PMID: 31063684 DOI: 10.1021/acs.joc.9b01008] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Enantiopure β-amino ketone derivatives were synthesized by decarboxylative Mannich reaction of chiral N- tert-butanesulfinyl imines with β-keto acids and were subsequently transformed into cis-2,6-disubstituted piperidin-4-ones through an organocatalyzed condensation with aldehydes. Both enantiomers were accessible from the same precursors by inverting the order in the reaction sequence of the aldehydes involved in the imine formation and the intramolecular Mannich condensation. The synthesis of the piperidine alkaloids (+)-241D, (-)-epimyrtine, and (-)-lasubine II demonstrated the utility of this methodology.
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Affiliation(s)
- Alejandro Lahosa
- Departamento de Química Orgánica, Facultad de Ciencias , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain.,Instituto de Síntesis Orgánica (ISO) , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain
| | - Miguel Yus
- Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain
| | - Francisco Foubelo
- Departamento de Química Orgánica, Facultad de Ciencias , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain.,Instituto de Síntesis Orgánica (ISO) , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain.,Centro de Innovación en Química Avanzada (ORFEO-CINQA) , Universidad de Alicante , Apdo. 99 , 03080 Alicante , Spain
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20
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Eskici M, Karanfil A. Stereoselective synthesis of cis-2,6-disubstituted piperidines from 1,2-cyclic sulfamidates. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.01.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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21
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Kuznetsov NY, Tikhov RM, Strelkova TV, Bubnov YN. Dimethylamine adducts of allylic triorganoboranes as effective reagents for Petasis-type homoallylation of primary amines with formaldehyde. Org Biomol Chem 2019; 16:7115-7119. [PMID: 30250957 DOI: 10.1039/c8ob02152j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Dimethylamine adducts of triallyl-, triprenyl- and trans-cinnamyl(dipropyl)borane are effective reagents for mild homoallylation of primary amines with aqueous formaldehyde in MeOH without an inert atmosphere. A new concept is proposed for the explanation of the high stability of allylborane-amine adducts in aqueous MeOH.
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Affiliation(s)
- Nikolai Yu Kuznetsov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov 28, 119991, Moscow, Russia.
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22
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Song W, Li M, Zheng N, Ullah K, Li J, Dong K, Zheng Y. Iridium-Catalyzed Highly Regioselective and Diastereoselective Allylic Etherification To Access cis-2,6-Disubstituted Dihydropyridinones. J Org Chem 2018; 83:12822-12830. [PMID: 30234304 DOI: 10.1021/acs.joc.8b01598] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly regio- and diastereoselective method to access cis-2,6-disubstituted dihydropyridinones under mild conditions by an iridium-catalyzed allylic etherification is reported. cis-2,6-Disubstituted dihydropyridinones are important precursors for the de novo synthesis of the corresponding piperidine alkaloids and iminosugars. This strategy features a broad substrate scope, high yields, and excellent regio- and diastereoselectivities. A π-allyl-Ir intermediate is involved in the mechanism. The strong A1,3-strain from the tosyl group may also favor the formation of cis-products in this transformation.
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Affiliation(s)
- Wangze Song
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian , 116024 , P. R. China
| | - Ming Li
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian , 116024 , P. R. China
| | - Nan Zheng
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian , 116024 , P. R. China.,School of Chemical Engineering , Dalian University of Technology , Dalian , 116024 , P. R. China
| | - Karim Ullah
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian , 116024 , P. R. China
| | - Junhao Li
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian , 116024 , P. R. China
| | - Kun Dong
- State Key Laboratory of Fine Chemicals, School of Pharmaceutical Science and Technology , Dalian University of Technology , Dalian , 116024 , P. R. China
| | - Yubin Zheng
- School of Chemical Engineering , Dalian University of Technology , Dalian , 116024 , P. R. China
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23
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Bell JD, Harkiss AH, Wellaway CR, Sutherland A. Stereoselective synthesis of 2,6-trans-4-oxopiperidines using an acid-mediated 6-endo-trig cyclisation. Org Biomol Chem 2018; 16:6410-6422. [PMID: 30011344 DOI: 10.1039/c8ob01363b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An acid-mediated 6-endo-trig cyclisation of amine-substituted enones has been developed for the stereoselective synthesis of trans-6-alkyl-2-methyl-4-oxopiperidines. Performed under conditions that prevent removal of the Boc-protecting group or acetal formation, the key cyclisation was found to generate cleanly the 4-oxopiperidine products in high overall yields from a wide range of alkyl substituted enones. The synthetic utility of the trans-6-alkyl-2-methyl-4-oxopiperidines formed from this process was demonstrated with the total synthesis of the quinolizidine alkaloid, (+)-myrtine and the piperidine alkaloid, (-)-solenopsin A.
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Affiliation(s)
- Jonathan D Bell
- WestCHEM, School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
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24
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Hariss L, Ibrahim R, Jaber N, Roisnel T, Grée R, Hachem A. A General Approach to Various Five- and Six-Membered gem
-Difluoroheterocycles: Application to the Synthesis of Fluorinated Analogues of Sedamine. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800371] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Layal Hariss
- Laboratory for Medicinal Chemistry and Natural Products; Faculty of Sciences (1) and PRASE-EDST; Lebanese University; Hadat Beirut Lebanon
| | - Rima Ibrahim
- Laboratory for Medicinal Chemistry and Natural Products; Faculty of Sciences (1) and PRASE-EDST; Lebanese University; Hadat Beirut Lebanon
| | - Nada Jaber
- Laboratory for Medicinal Chemistry and Natural Products; Faculty of Sciences (1) and PRASE-EDST; Lebanese University; Hadat Beirut Lebanon
| | - Thierry Roisnel
- Univ Rennes; CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226; 35000 Rennes France
| | - René Grée
- Univ Rennes; CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226; 35000 Rennes France
| | - Ali Hachem
- Laboratory for Medicinal Chemistry and Natural Products; Faculty of Sciences (1) and PRASE-EDST; Lebanese University; Hadat Beirut Lebanon
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25
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Guerola M, Escolano M, Alzuet-Piña G, Gómez-Bengoa E, Ramírez de Arellano C, Sánchez-Roselló M, del Pozo C. Synthesis of substituted piperidines by enantioselective desymmetrizing intramolecular aza-Michael reactions. Org Biomol Chem 2018; 16:4650-4658. [PMID: 29911720 DOI: 10.1039/c8ob01139g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
An organocatalytic enantioselective intramolecular aza-Michael reaction has been described for the first time in a desymmetrization process employing substrates different from cyclohexadienones.
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Affiliation(s)
- Marta Guerola
- Department of Organic Chemistry
- University of Valencia
- E-46100-Burjassot
- Spain
| | - Marcos Escolano
- Department of Organic Chemistry
- University of Valencia
- E-46100-Burjassot
- Spain
| | - Gloria Alzuet-Piña
- Department of Inorganic Chemistry
- University of Valencia
- E-46100-Burjassot
- Spain
| | - Enrique Gómez-Bengoa
- Department of Organic Chemistry I
- University of Basque Country (UPV-EHU)
- E-20018 Donostia-San Sebastián
- Spain
| | | | | | - Carlos del Pozo
- Department of Organic Chemistry
- University of Valencia
- E-46100-Burjassot
- Spain
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26
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Aricò F, Aldoshin AS, Musolino M, Crisma M, Tundo P. β-Aminocarbonates in Regioselective and Ring Expansion Reactions. J Org Chem 2017; 83:236-243. [PMID: 29172495 DOI: 10.1021/acs.joc.7b02609] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The reactivity of β-aminocarbonates as anisotropic electrophiles has been investigated with several phenols. Products distribution shows that the regioselectivity of the anchimerically driven alkylation reaction depends on the nucleophiles. The results suggest that in the presence of nucleophiles that are also good leaving groups, the reaction takes place under thermodynamic control favoring the attack on the most sterically hindered carbon of the cyclic aziridinium intermediate. Furthermore, when an enantiomerically pure pyrrolidine-based carbonate was used, the reaction with phenols proceeds via a bicyclic aziridinium intermediate leading to the stereoselective synthesis of optically active 3-substituted piperidines via ring expansion reaction. These results were confirmed both by NMR spectroscopy and X-ray diffraction analysis.
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Affiliation(s)
- Fabio Aricò
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University , Scientific Campus Via Torino 155, 30170 Venezia Mestre, Italy
| | - Alexander S Aldoshin
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University , Scientific Campus Via Torino 155, 30170 Venezia Mestre, Italy
| | - Manuele Musolino
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University , Scientific Campus Via Torino 155, 30170 Venezia Mestre, Italy
| | - Marco Crisma
- Institute of Biomolecular Chemistry , Padova Unit, CNR, 35131 Padova, Italy
| | - Pietro Tundo
- Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University , Scientific Campus Via Torino 155, 30170 Venezia Mestre, Italy
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