1
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Chao YH, Jamwal P, Ananda Rao G, Gurubrahamam R, Chen K. Chiral Spirophosphoric-Acid-Catalyzed Divergent Vinylogous Mannich and aza-Friedel-Crafts Reactions of 2-Methoxyfuran. Org Lett 2024; 26:4938-4944. [PMID: 38838351 DOI: 10.1021/acs.orglett.4c01458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
The first enantioselective vinylogous Mannich reaction is developed using 2-methoxyfuran under chiral spirophosphoric acid catalysis. The strategy involves 4-isoxazoline derivatives as cyclic ketimine surrogates and provides γ-butenolide scaffolds (up to 97% ee and >20:1 dr). The mechanistic investigations suggest that an in situ generated water molecule plays a crucial role in delivering γ-butenolide, while the use of molecular sieves delivers aza-Friedel-Crafts products. The synthetic utility of γ-butenolide is shown toward obtaining piperidone skeleton via a lactone-lactam rearrangement.
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Affiliation(s)
- Yi-Han Chao
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan 11677
| | - Paru Jamwal
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, Jammu and Kashmir 181221, India
| | - Gunda Ananda Rao
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan 11677
| | - Ramani Gurubrahamam
- Department of Chemistry, Indian Institute of Technology Jammu, Jagti, Jammu and Kashmir 181221, India
| | - Kwunmin Chen
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan 11677
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2
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Tian D, Li ZC, Sun ZH, He YP, Xu LP, Wu H. Catalytic Enantioselective Biltz Synthesis. Angew Chem Int Ed Engl 2023; 62:e202313797. [PMID: 37814442 DOI: 10.1002/anie.202313797] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/07/2023] [Accepted: 10/09/2023] [Indexed: 10/11/2023]
Abstract
The Biltz synthesis establishes straightforward access to 5,5-disubstituted (thio)hydantoins by combining a 1,2-diketone and a (thio)urea. Its appealing features include inherent atom and step economy together with the potential to generate structurally diverse products. However, control of the stereochemistry of this reaction has proven to be a daunting challenge. Herein, we describe the first example of enantioselective catalytic Biltz synthesis which affords more than 40 thiohydantoins with high stereo- and regio-control, irrespective of the symmetry of thiourea structure. A one pot synthesis of corresponding hydantoins is also documented. Remarkably, experimental studies and DFT calculations establish the reaction pathway and origin of stereoselectivity.
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Affiliation(s)
- Di Tian
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Zhuo-Chen Li
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Ze-Hua Sun
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255000, Shandong, China
| | - Yu-Ping He
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Li-Ping Xu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, Shandong, China
| | - Hua Wu
- Shanghai Frontiers Science Center for Drug Target Identification and Delivery, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Pharmaceutical Sciences, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
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3
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Xie L, Sun L, Wu P, Wang Z, Zhao C, Wu L, Li X, Gao Z, Liu W, Nie SZ. Organocatalytic cascade nucleophilic/aza-Michael addition reactions: metal-free catalytic strategy for the synthesis of hydantoins. Org Biomol Chem 2023; 21:2295-2300. [PMID: 36825465 DOI: 10.1039/d2ob01825j] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Lewis base-catalyzed cascade nucleophilic/aza-Michael addition reaction of N-alkoxy β-oxo-acrylamides with isocyanates has been developed to afford various highly functionalized hydantoin derivatives in 80-98% yields under mild reaction conditions. The intriguing features of this method include metal-free reaction conditions, low catalyst loading, broad substrate scope and short reaction time.
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Affiliation(s)
- Lei Xie
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Lei Sun
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Ping Wu
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Zhaoxue Wang
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Chenyi Zhao
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Lingang Wu
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Xiaojing Li
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Zhenzhen Gao
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
| | - Wanxing Liu
- The Non-Public Enterprise Service Center of Liaocheng, Liaocheng 252000, Shandong, P. R. China.
| | - Shao-Zhen Nie
- Address here. School of Pharmaceutical Sciences, College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, Shandong, P. R. China. xieleilcu.edu.cn
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4
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Villaescusa L, Hernández I, Azcune L, Rudi A, Mercero JM, Landa A, Oiarbide M, Palomo C. Rigidified Bis(sulfonyl)ethylenes as Effective Michael Acceptors for Asymmetric Catalysis: Application to the Enantioselective Synthesis of Quaternary Hydantoins. J Org Chem 2023; 88:972-987. [PMID: 36630318 PMCID: PMC10013931 DOI: 10.1021/acs.joc.2c02403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The catalytic, enantio- and diastereoselective addition of hydantoin surrogates II to "rigidified" vinylidene bis(sulfone) reagents is developed, thus overcoming the inability of commonly employed β-substituted vinylic sulfones to react. Adducts are transformed in enantioenriched 5,5-disubstituted hydantoins through hydrolysis and reductive desulfonylation processes providing new structures for eventual bioassays. Density functional theory studies that rationalize the observed reactivity and stereoselectivity trends are also provided.
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Affiliation(s)
- Leire Villaescusa
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco UPV/EHU, Paseo Manuel Lardizabal 3, Donostia-San Sebastián 20018, Spain
| | - Iker Hernández
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco UPV/EHU, Paseo Manuel Lardizabal 3, Donostia-San Sebastián 20018, Spain
| | - Laura Azcune
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco UPV/EHU, Paseo Manuel Lardizabal 3, Donostia-San Sebastián 20018, Spain
| | - Ainhoa Rudi
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco UPV/EHU, Paseo Manuel Lardizabal 3, Donostia-San Sebastián 20018, Spain
| | - José M Mercero
- Kimika Fakultatea, Euskal Herriko Unibertsitatea (UPV/EHU) & Donostia International Physics Center (DIPC), Donostia 20018, Spain
| | - Aitor Landa
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco UPV/EHU, Paseo Manuel Lardizabal 3, Donostia-San Sebastián 20018, Spain
| | - Mikel Oiarbide
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco UPV/EHU, Paseo Manuel Lardizabal 3, Donostia-San Sebastián 20018, Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco UPV/EHU, Paseo Manuel Lardizabal 3, Donostia-San Sebastián 20018, Spain
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5
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Keenan T, Jean A, Arseniyadis S. Phase-Transfer-Catalyzed Alkylation of Hydantoins. ACS ORGANIC & INORGANIC AU 2022; 2:312-317. [PMID: 36855589 PMCID: PMC9954259 DOI: 10.1021/acsorginorgau.1c00058] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly efficient, cost-effective, and environmentally friendly protocol is reported for the C5-selective alkylation of hydantoins under phase-transfer catalysis. The reactions are scalable and only require a catalytic amount of tetrabutylammonium bromide (TBAB) to achieve high yields under mild reaction conditions. Moreover, the method is applicable to a wide range of electrophiles, including alkyl-, allyl-, propargyl-, and benzyl halides, as well as acrylates and dibromoalkanes, but also to virtually any hydantoin precursor. We also highlight the potential for an enantioselective adaptation using a chiral phase-transfer catalyst.
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Affiliation(s)
- Thomas Keenan
- Department
of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, U.K.
| | - Alexandre Jean
- Industrial
Research Centre, Oril Industrie, 13 rue Desgenétais, 76210 Bolbec, France,
| | - Stellios Arseniyadis
- Department
of Chemistry, Queen Mary University of London, Mile End Road, London E1 4NS, U.K.,
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6
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Umemiya S, Lingqi K, Eto Y, Terada M. Chiral Brønsted Acid Catalyzed Enantioconvergent Synthesis of Chiral Tetrahydrocarbazoles with Allenylsilanes from Racemic Indolylmethanols. CHEM LETT 2022. [DOI: 10.1246/cl.210803] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shigenobu Umemiya
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Kong Lingqi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Yuno Eto
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Masahiro Terada
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
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7
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del Corte X, Martínez de Marigorta E, Palacios F, Vicario J, Maestro A. An overview of the applications of chiral phosphoric acid organocatalysts in enantioselective additions to CO and CN bonds. Org Chem Front 2022. [DOI: 10.1039/d2qo01209j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Since 2004, chiral phosphoric acids (CPAs) have emerged as highyl efficient organocatalysts, providing excellent results in a wide reaction scope. In this review, the applications of CPA for enantioselective additions to CO and CN bonds are covered.
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Affiliation(s)
- Xabier del Corte
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
| | - Edorta Martínez de Marigorta
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
| | - Francisco Palacios
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
| | - Javier Vicario
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
| | - Aitor Maestro
- Department of Organic Chemistry I, Faculty of Pharmacy, University of the Basque Country, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
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8
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Voronov A, Botla V, Montanari L, Carfagna C, Mancuso R, Gabriele B, Maestri G, Motti E, Della Ca N. Pd-Catalysed oxidative carbonylation of α-amino amides to hydantoins under mild conditions. Chem Commun (Camb) 2021; 58:294-297. [PMID: 34882163 DOI: 10.1039/d1cc04154a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first example of palladium-catalysed oxidative carbonylation of unprotected α-amino amides to hydantoins is described here. The selective synthesis of the target compounds was achieved under mild conditions (1 atm of CO), without ligands and bases. The catalytic system overrode the common reaction pathway that usually leads instead to the formation of symmetrical ureas.
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Affiliation(s)
- Aleksandr Voronov
- Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA), University of Parma, Parco Area delle Scienze, 17/A, Parma 43124, Italy.
| | - Vinayak Botla
- Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA), University of Parma, Parco Area delle Scienze, 17/A, Parma 43124, Italy.
| | - Luca Montanari
- Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA), University of Parma, Parco Area delle Scienze, 17/A, Parma 43124, Italy.
| | - Carla Carfagna
- Department of Industrial Chemistry "T. Montanari", University of Bologna, Bologna 40136, Italy
| | - Raffaella Mancuso
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci 12/C, Arcavacata di Rende 87036, Cosenza, Italy
| | - Bartolo Gabriele
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci 12/C, Arcavacata di Rende 87036, Cosenza, Italy
| | - Giovanni Maestri
- Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA), University of Parma, Parco Area delle Scienze, 17/A, Parma 43124, Italy. .,CIRCC (Interuniversity Consortium Chemical Reactivity and Catalysis), via Celso Ulpiani 27, Bari 70126, Italy
| | - Elena Motti
- Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA), University of Parma, Parco Area delle Scienze, 17/A, Parma 43124, Italy. .,CIRCC (Interuniversity Consortium Chemical Reactivity and Catalysis), via Celso Ulpiani 27, Bari 70126, Italy
| | - Nicola Della Ca
- Department of Chemistry, Life Sciences and Environmental Sustainability (SCVSA), University of Parma, Parco Area delle Scienze, 17/A, Parma 43124, Italy. .,CIRCC (Interuniversity Consortium Chemical Reactivity and Catalysis), via Celso Ulpiani 27, Bari 70126, Italy
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9
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Tanaka S, Kitamura M, Iwase S, Kanda S, Kato M, Kiriyama Y. Ruthenium-Catalyzed Asymmetric Dehydrative Allylic Cyclization of Five-Membered Chalcogen Heteroaromatics. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1523-6826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractThe asymmetric dehydrative intramolecular allylation reactions of furan and thiophene were performed using a cationic cyclopentadienyl-ruthenium (CpRu) complex of a chiral pyridine carboxylic acid, namely Cl-Naph-PyCOOH. Both furan and thiophene tethered with an allylic alcohol gave the corresponding bicyclic compounds in high yields and enantioselectivities using 0.1–5 mol% of the catalyst. The reaction was found to proceed via a similar enantioface selection mechanism to that previously reported by our group, which involved halogen and hydrogen bond formation, in addition to the generation of an intermediate σ-allyl complex.
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Affiliation(s)
- Shinji Tanaka
- Research Center for Materials Science, Nagoya University
| | - Masato Kitamura
- Graduate School of Pharmaceutical Sciences, Nagoya University
| | - Shoutaro Iwase
- Graduate School of Pharmaceutical Sciences, Nagoya University
| | - Sena Kanda
- Department of Chemistry, Nagoya University
| | - Marie Kato
- Graduate School of Pharmaceutical Sciences, Nagoya University
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10
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Łukasik B, Kowalska J, Frankowski S, Albrecht Ł. Vinylogous hydrazone strategy for the organocatalytic alkylation of heteroaromatic derivatives. Chem Commun (Camb) 2021; 57:6312-6315. [PMID: 34076661 DOI: 10.1039/d1cc01923f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A new umpolung approach for the asymmetric Friedel-Crafts-type alkylation of electron-poor heteroaromatic systems has been developed. It is based on the vinylogous reactivity of hydrazones derived from heteroaromatic aldehydes. The donating effect of the hydrazone moiety can be efficiently transferred over the heteroaromatic system activating it towards an asymmetric Friedel-Crafts reaction with α,β-unsaturated aldehydes realized under aminocatalytic conditions. Excellent enantioselectivities have been obtained owing to the application of a MacMillan imidazolidinone catalyst. Unmasking of the hydrazone moiety has also been realized resulting in the development of a unique strategy for the asymmetric functionalization of electron-poor heteroaromatic systems.
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Affiliation(s)
- Beata Łukasik
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, Łódź 90-924, Poland.
| | - Justyna Kowalska
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, Łódź 90-924, Poland.
| | - Sebastian Frankowski
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, Łódź 90-924, Poland.
| | - Łukasz Albrecht
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, Łódź 90-924, Poland.
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11
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Laconsay CJ, Seguin TJ, Wheeler SE. Modulating Stereoselectivity through Electrostatic Interactions in a SPINOL-Phosphoric Acid-Catalyzed Synthesis of 2,3-Dihydroquinazolinones. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02578] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Croix J. Laconsay
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| | - Trevor J. Seguin
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| | - Steven E. Wheeler
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States
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12
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13
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Dub PA, Batrice RJ, Gordon JC, Scott BL, Minko Y, Schmidt JG, Williams RF. Engineering Catalysts for Selective Ester Hydrogenation. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.9b00559] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Pavel A. Dub
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Rami J. Batrice
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - John C. Gordon
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Brian L. Scott
- Materials and Physics Applications Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Yury Minko
- Biochemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Jurgen G. Schmidt
- Biochemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Robert F. Williams
- Biochemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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14
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Dai W, Zhang Z, Du Y. Modulation of Conformational Preferences of Heteroaromatic Ethers and Amides through Protonation and Ionization: Charge Effect. Chemistry 2019; 8:840-851. [PMID: 31304077 PMCID: PMC6604235 DOI: 10.1002/open.201900103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/06/2019] [Indexed: 12/16/2022]
Abstract
Multiple approaches reveal the strong effects of a positive charge introduced by protonation or ionization on the conformation of o‐heteroaromatic ethers and amides. The ethers and amides containing an ortho‐N heteroatom are syn‐preferring while those containing an ortho‐O or ortho‐S heteroatom are mostly anti‐preferring. However, for all the monocyclic o‐heteroaromatic ethers and amides, the protonated ones are all anti‐preferring while the ionized ones are all syn‐preferring. Interestingly, although both the protonation and ionization introduce a positive charge, they have such different effects on molecular conformation, very informative for understanding the origin of conformational preferences. Detailed analysis shows that the population of the introduced positive charge dictates the conformational preferences via electrostatic and orbital interactions. Compared to ortho‐heteroatoms, meta‐heteroatoms have weaker effect on conformational preference. Achieved by complete inductive method, the regularity of conformational preferences and switching provides easy ways to modulate conformers (by pH or redox), and makes this kind of ether or amide bond a conformational hinge applicable to design of functional molecules (drugs and materials) and modulation of molecular biological processes.
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Affiliation(s)
- Wenshuai Dai
- Beijing National Laboratory of Molecular Science, State Key laboratory of Molecular Reaction Dynamics Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 Beijing PR China.,School of Chemical Engineering University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Zhe Zhang
- Beijing National Laboratory of Molecular Science, State Key laboratory of Molecular Reaction Dynamics Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 Beijing PR China.,School of Chemical Engineering University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Yikui Du
- Beijing National Laboratory of Molecular Science, State Key laboratory of Molecular Reaction Dynamics Institute of Chemistry, Chinese Academy of Sciences Beijing 100190 Beijing PR China
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15
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Heravi MM, Zadsirjan V, Heydari M, Masoumi B. Organocatalyzed Asymmetric Friedel‐Crafts Reactions: An Update. CHEM REC 2019. [DOI: 10.1002/tcr.201800190] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Majid M. Heravi
- Department of ChemistrySchool of ScienceAlzahra University POBox 1993891176, Vanak Tehran Iran Tel.: +98 21 88044051 fax: +98 21 88041344
| | - Vahideh Zadsirjan
- Department of ChemistrySchool of ScienceAlzahra University POBox 1993891176, Vanak Tehran Iran Tel.: +98 21 88044051 fax: +98 21 88041344
| | - Masumeh Heydari
- Department of ChemistrySchool of ScienceAlzahra University POBox 1993891176, Vanak Tehran Iran Tel.: +98 21 88044051 fax: +98 21 88041344
| | - Baharak Masoumi
- Department of ChemistrySchool of ScienceAlzahra University POBox 1993891176, Vanak Tehran Iran Tel.: +98 21 88044051 fax: +98 21 88041344
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16
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Thilmany P, Gérard P, Vanoost A, Deldaele C, Petit L, Evano G. Copper-Mediated N-Arylations of Hydantoins. J Org Chem 2019; 84:392-400. [PMID: 30412408 DOI: 10.1021/acs.joc.8b02284] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A set of two broadly applicable procedures for the N-arylation of hydantoins is reported. The first one relies on the use of stoichiometric copper(I) oxide under ligand- and base-free conditions and enables a clean regioselective arylation at the N3 nitrogen atom, while the second one is based on the use of catalytic copper(I) iodide and trans- N, N'-dimethylcyclohexane-1,2-diamine and promotes arylation at the N1 nitrogen atom. Importantly, the combination of these two procedures affords a straightforward entry to diarylated hydantoins.
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Affiliation(s)
- Pierre Thilmany
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques , Université libre de Bruxelles (ULB) , Avenue F. D. Roosevelt 50, CP160/06 , 1050 Brussels , Belgium
| | - Phidéline Gérard
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques , Université libre de Bruxelles (ULB) , Avenue F. D. Roosevelt 50, CP160/06 , 1050 Brussels , Belgium
| | - Agathe Vanoost
- Minakem Recherche , 145 Chemin des Lilas , 59310 Beuvry-La-Forêt , France
| | - Christopher Deldaele
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques , Université libre de Bruxelles (ULB) , Avenue F. D. Roosevelt 50, CP160/06 , 1050 Brussels , Belgium
| | - Laurent Petit
- Minakem Recherche , 145 Chemin des Lilas , 59310 Beuvry-La-Forêt , France
| | - Gwilherm Evano
- Laboratoire de Chimie Organique, Service de Chimie et PhysicoChimie Organiques , Université libre de Bruxelles (ULB) , Avenue F. D. Roosevelt 50, CP160/06 , 1050 Brussels , Belgium
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17
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Asymmetric intramolecular Friedel–Crafts reaction catalyzed by a spiropyrrolidine organocatalyst: Enantioselective construction of indolizine and azepine frameworks. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.061] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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18
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Yonesaki R, Kondo Y, Akkad W, Sawa M, Morisaki K, Morimoto H, Ohshima T. 3-Mono-Substituted BINOL Phosphoric Acids as Effective Organocatalysts in Direct Enantioselective Friedel-Crafts-Type Alkylation of N-Unprotected α-Ketiminoester. Chemistry 2018; 24:15211-15214. [PMID: 30098059 DOI: 10.1002/chem.201804078] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Indexed: 11/08/2022]
Abstract
Although BINOL-derived phosphoric acids are among the most widely used chiral Brønsted acid organocatalysts, their structures are mostly limited to 3,3'-disubstituted ones and simple 3-mono-substituted ones without any polar functionalities on the 3-substituent have not been used in highly enantioselective reactions. This work reports such 3-mono-substituted analogues as effective organocatalysts in direct highly enantioselective Friedel-Crafts-type alkylation of N-unprotected α-ketiminoester. The origin of the observed high enantioselectivity with the 3-mono-substituted catalyst is also discussed.
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Affiliation(s)
- Ryohei Yonesaki
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yuta Kondo
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Walaa Akkad
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Masanao Sawa
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kazuhiro Morisaki
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Hiroyuki Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Takashi Ohshima
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
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19
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Hatano M, Okamoto H, Kawakami T, Toh K, Nakatsuji H, Sakakura A, Ishihara K. Enantioselective aza-Friedel-Crafts reaction of furan with α-ketimino esters induced by a conjugated double hydrogen bond network of chiral bis(phosphoric acid) catalysts. Chem Sci 2018; 9:6361-6367. [PMID: 30288231 PMCID: PMC6143995 DOI: 10.1039/c8sc02290a] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 06/23/2018] [Indexed: 12/23/2022] Open
Abstract
Chiral C 2- and C 1-symmetric BINOL-derived bis(phosphoric acid) catalysts, which have OP([double bond, length as m-dash]O)(OH)2/OP([double bond, length as m-dash]O)(OH)(OR) moieties at the 2,2'-positions, were developed and used for the enantioselective aza-Friedel-Crafts reaction of 2-methoxyfuran with α-ketimino esters for the first time. The intramolecular conjugated double hydrogen bond network is a key to increasing the Brønsted acidity and preventing deactivation of the catalysts. Highly functionalized α-amino acid derivatives with a chiral quaternary carbon center could be transformed into versatile optically active N- and O-heterocycles and an α-aryl-substituted serine.
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Affiliation(s)
- Manabu Hatano
- Graduate School of Engineering , Nagoya University , Furo-cho, Chikusa , Nagoya 464-8603 , Japan . ; ; Tel: +81-52-789-3331
| | - Haruka Okamoto
- Graduate School of Engineering , Nagoya University , Furo-cho, Chikusa , Nagoya 464-8603 , Japan . ; ; Tel: +81-52-789-3331
| | - Taro Kawakami
- Graduate School of Engineering , Nagoya University , Furo-cho, Chikusa , Nagoya 464-8603 , Japan . ; ; Tel: +81-52-789-3331
| | - Kohei Toh
- Graduate School of Engineering , Nagoya University , Furo-cho, Chikusa , Nagoya 464-8603 , Japan . ; ; Tel: +81-52-789-3331
| | - Hidefumi Nakatsuji
- Graduate School of Engineering , Nagoya University , Furo-cho, Chikusa , Nagoya 464-8603 , Japan . ; ; Tel: +81-52-789-3331
| | - Akira Sakakura
- Graduate School of Natural Science and Technology , Okayama University , 3-1-1 Tsushimanaka, Kita-ku , Okayama 700-8530 , Japan . ; ; Tel: +81-86-251-8215
| | - Kazuaki Ishihara
- Graduate School of Engineering , Nagoya University , Furo-cho, Chikusa , Nagoya 464-8603 , Japan . ; ; Tel: +81-52-789-3331
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20
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Shimizu M, Kikuchi J, Kondoh A, Terada M. Chiral Brønsted acid-catalyzed intramolecular S N2' reaction for enantioselective construction of a quaternary stereogenic center. Chem Sci 2018; 9:5747-5757. [PMID: 30079184 PMCID: PMC6050593 DOI: 10.1039/c8sc01942h] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Accepted: 06/03/2018] [Indexed: 12/15/2022] Open
Abstract
Construction of a quaternary stereogenic center was accomplished through the enantioselective intramolecular allylic substitution reaction of bis-trichloroacetimidate catalyzed by a chiral phosphoramide derivative.
An enantioselective intramolecular anti-SN2′ cyclization reaction for the construction of a quaternary stereogenic center was accomplished through the activation of the leaving group using a binaphthol-derived phosphoramide as the chiral Brønsted acid catalyst. The present allylic substitution reaction is beneficial not only for the regioselective nucleophilic substitution at the multi-substituted site of the double bond but also for controlling the stereochemical outcome because of using a geometrically defined double bond. Indeed, the reaction afforded synthetically useful amino alcohol derivatives having a tetra-substituted carbon center in a highly enantioselective manner in most cases, in which the modification of the sulfonamide unit of the phosphoramide catalyst was demonstrated to improve the enantioselectivity. Experimental and theoretical elucidation of the reaction mechanism suggested that the reaction proceeds through a synchronous anti-SN2′ pathway, although NMR monitoring of the reaction indicated the formation of the phosphorimidate ester via the SN2 reaction of the catalyst with the substrate, which results in catalyst deactivation. Further theoretical studies of the origin of the stereochemical outcome at the generated quaternary stereogenic center were performed. Structural analysis of the transition states at the enantio-determining step revealed that the distinct discrimination of the substituents attached to the geometrically defined double bond is achieved by the anthryl and sulfonamide substituents of the catalyst through the three-point hydrogen bonding interactions and the T-shaped C–H···π interactions.
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Affiliation(s)
- Masahiro Shimizu
- Department of Chemistry , Graduate School of Science , Tohoku University , Aoba-ku , Sendai 980-8578 , Japan . ; ; Tel: +81-22-795-6602
| | - Jun Kikuchi
- Department of Chemistry , Graduate School of Science , Tohoku University , Aoba-ku , Sendai 980-8578 , Japan . ; ; Tel: +81-22-795-6602
| | - Azusa Kondoh
- Research and Analytical Center for Giant Molecules , Graduate School of Science , Tohoku University , Aoba-ku , Sendai 980-8578 , Japan
| | - Masahiro Terada
- Department of Chemistry , Graduate School of Science , Tohoku University , Aoba-ku , Sendai 980-8578 , Japan . ; ; Tel: +81-22-795-6602
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21
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Cheng DJ, Shao YD. Organocatalytic Asymmetric Transformations Involving the Cyclic Imine Moiety in Indole and Isoindole Related Heterocycles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800345] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Dao-Juan Cheng
- Department of Chemistry and Chemical Engineering; Heze University; Heze 274015 People's Republic of China
| | - You-Dong Shao
- Department of Chemistry and Chemical Engineering; Heze University; Heze 274015 People's Republic of China
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22
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Izquierdo J, Etxabe J, Duñabeitia E, Landa A, Oiarbide M, Palomo C. Enantioselective Synthesis of 5,5-Disubstituted Hydantoins by Brønsted Base/H-Bond Catalyst Assisted Michael Reactions of a Design Template. Chemistry 2018; 24:7217-7227. [PMID: 29575281 DOI: 10.1002/chem.201800506] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Indexed: 01/25/2023]
Abstract
A new method for the enantioselective synthesis of 5,5-disubstituted (quaternary) hydantoins was developed on the basis of an organocatalytic Michael reaction approach involving the use of 2-benzylthio-3,5-dihydroimidazol-4-ones as key hydantoin surrogates. The method is general with respect to the substitution pattern at the hydantoin N1 (alkyl, aryl, acyl), N3 (aryl), and C5 (linear/branched alkyl, aryl) positions and affords essentially single diastereomeric products with enantioselectivities higher than 95 % ee in most cases. Among the bifunctional Brønsted base/H-bond catalysts examined, a known squaramide-tertiary amine catalyst and a newly prepared squaramide-tertiary amine catalyst provide the highest selectivity so far with either nitroolefins or vinyl ketones as the acceptor components. Kinetic measurements support a first-order rate dependence on both reaction partners, the donor template and the Michael acceptor, whereas competitive 1 H NMR spectroscopy experiments reveal the high ability of the template for catalyst binding.
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Affiliation(s)
- Joseba Izquierdo
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Julen Etxabe
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Eider Duñabeitia
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Aitor Landa
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Mikel Oiarbide
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
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23
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Schwarzer MC, Fujioka A, Ishii T, Ohmiya H, Mori S, Sawamura M. Enantiocontrol by assembled attractive interactions in copper-catalyzed asymmetric direct alkynylation of α-ketoesters with terminal alkynes: OH···O/sp 3-CH···O two-point hydrogen bonding combined with dispersive attractions. Chem Sci 2018; 9:3484-3493. [PMID: 29780478 PMCID: PMC5933290 DOI: 10.1039/c8sc00527c] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 02/27/2018] [Indexed: 12/29/2022] Open
Abstract
Copper-catalyzed asymmetric direct alkynylation of α-ketoesters with terminal alkynes with chiral prolinol-phosphine ligands, most preferably (αR,2S)-1-(2-dicyclohexylphosphinobenzyl)-α-neopentyl-2-pyrrolidinemethanol, afforded various enantioenriched chiral propargylic tertiary alcohols. Quantum-chemical calculations using the BP86 density functional including Grimme's empirical dispersion correction [DF-BP86-D3(BJ)-PCM(tBuOH)/TZVPP//DF-BP86-D3(BJ)/SVP] show the occurrence of OH···O/sp3-CH···O two-point hydrogen bonding between the chiral ligand and the carbonyl group of the ketoester in the stereo-determining transition states. Combined with the hydrogen-bonding interactions orienting the ketoester substrate, dispersive attractions between the chiral ligand (P-cyclohexyl groups) and the ketoester in the favored transition states, rather than steric repulsions in the disfavored transition state explain the enantioselectivity of the asymmetric copper catalysis.
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Affiliation(s)
- Martin C Schwarzer
- Institute of Quantum Beam Science , Ibaraki University , Mito , Ibaraki 310-8512 , Japan .
| | - Akane Fujioka
- Department of Chemistry , Faculty of Science , Hokkaido University , Sapporo 060-0810 , Japan .
| | - Takaoki Ishii
- Department of Chemistry , Faculty of Science , Hokkaido University , Sapporo 060-0810 , Japan .
| | - Hirohisa Ohmiya
- Division of Pharmaceutical Sciences , Graduate School of Medical Sciences , Kanazawa University , Kakuma-machi , Kanazawa 920-1192 , Japan
| | - Seiji Mori
- Institute of Quantum Beam Science , Ibaraki University , Mito , Ibaraki 310-8512 , Japan .
| | - Masaya Sawamura
- Department of Chemistry , Faculty of Science , Hokkaido University , Sapporo 060-0810 , Japan .
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24
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Zuo Y, Yang N, Huang X, Hu C, Su Z. Mechanism and Origins of Stereoinduction in an Asymmetric Friedel–Crafts Alkylation Reaction of Chalcone Catalyzed by Chiral N,N′-Dioxide–Sc(III) Complex. J Org Chem 2018; 83:4628-4640. [DOI: 10.1021/acs.joc.8b00387] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yini Zuo
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Na Yang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Xunkun Huang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Changwei Hu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
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25
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Li F, Korenaga T, Nakanishi T, Kikuchi J, Terada M. Chiral Phosphoric Acid Catalyzed Enantioselective Ring Expansion Reaction of 1,3-Dithiane Derivatives: Case Study of the Nature of Ion-Pairing Interaction. J Am Chem Soc 2018; 140:2629-2642. [PMID: 29377689 DOI: 10.1021/jacs.7b13274] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Chiral counterion controlled asymmetric catalysis via an ion-pairing interaction has attracted immense attention in recent years. Despite a number of successful studies, the mechanistic elucidation of the stereocontrolling element in the ion-pairing interaction is rarely conducted and hence its nature is still far from being well understood. Herein we report an in-depth mechanistic case study of a newly developed enantioselective ring expansion reaction of 1,3-dithiane derivatives catalyzed by chiral phosphoric acid (CPA). An unprecedented enantioselective 1,2-sulfur rearrangement/stereospecific nucleophilic addition sequence was proven to be the stereoselective pathway. More importantly, by thorough investigation of the intrinsic nature of the stereospecific nucleophilic addition to the cationic thionium intermediate, we discovered that the key interaction in this process is the nonclassical C-H···O hydrogen bonds formed between the conjugate base of the CPA catalyst and the cationic intermediate. These C-H···O hydrogen bonds not only bind the catalyst to the substrates to form energetically favored states throughout the overall processes but also firmly maintain the relative positions of these fragments as the "fixed" contact ion pair to sustain the chiral information generated at the initial sulfur rearrangement step. This mechanistic case study provides a very clear understanding of the nature of the ion-pairing interaction in organocatalysis. The conclusion encourages the further development of the research field with the focus to design new organocatalysts and cultivate novel organocatalytic transformations.
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Affiliation(s)
- Feng Li
- Department of Chemistry, Graduate School of Science, Tohoku University , Aoba-ku, Sendai 980-8578, Japan
| | - Toshinobu Korenaga
- Department of Chemistry and Biological Sciences, Faculty of Science and Engineering, Iwate University , 4-3-5 Ueda, Morioka 020-8551, Japan
| | - Taishi Nakanishi
- Department of Chemistry, Graduate School of Science, Tohoku University , Aoba-ku, Sendai 980-8578, Japan
| | - Jun Kikuchi
- Department of Chemistry, Graduate School of Science, Tohoku University , Aoba-ku, Sendai 980-8578, Japan
| | - Masahiro Terada
- Department of Chemistry, Graduate School of Science, Tohoku University , Aoba-ku, Sendai 980-8578, Japan
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26
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Nakamura S, Furukawa T, Hatanaka T, Funahashi Y. Enantioselective aza-Friedel–Crafts reaction of cyclic ketimines with indoles using chiral imidazoline–phosphoric acid catalysts. Chem Commun (Camb) 2018; 54:3811-3814. [DOI: 10.1039/c8cc00594j] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A highly enantioselective aza-Friedel Crafts reaction of cyclic 4-aryl-3-oxo-1,2,5-thiadiazol-1,1-oxides as cyclic ketimines with indoles was developed.
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Affiliation(s)
- Shuichi Nakamura
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology
- Showa-ku
- Japan
- Frontier Research Institute for Material Science, Nagoya Institute of Technology
- Showa-ku
| | - Takashi Furukawa
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology
- Showa-ku
- Japan
| | - Tsubasa Hatanaka
- Department of Chemistry, Graduate School of Science, Osaka University
- Toyonaka
- Japan
| | - Yasuhiro Funahashi
- Department of Chemistry, Graduate School of Science, Osaka University
- Toyonaka
- Japan
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27
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Rahman A, Lin X. Development and application of chiral spirocyclic phosphoric acids in asymmetric catalysis. Org Biomol Chem 2018; 16:4753-4777. [DOI: 10.1039/c8ob00900g] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
This review describes the synthetic methods for the preparation of chiral spirocyclic phosphoric acids (SPAs), and their dynamically developing application for catalytic enantioselective transformations.
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Affiliation(s)
- Abdul Rahman
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Xufeng Lin
- Laboratory of Asymmetric Catalysis and Synthesis
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
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28
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Parmar D, Sugiono E, Raja S, Rueping M. Addition and Correction to Complete Field Guide to Asymmetric BINOL-Phosphate Derived Brønsted Acid and Metal Catalysis: History and Classification by Mode of Activation; Brønsted Acidity, Hydrogen Bonding, Ion Pairing, and Metal Phosphates. Chem Rev 2017; 117:10608-10620. [DOI: 10.1021/acs.chemrev.7b00197] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Aranzamendi E, Arrasate S, Sotomayor N, González‐Díaz H, Lete E. Chiral Brønsted Acid-Catalyzed Enantioselective α-Amidoalkylation Reactions: A Joint Experimental and Predictive Study. ChemistryOpen 2016; 5:540-549. [PMID: 28032023 PMCID: PMC5167290 DOI: 10.1002/open.201600120] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Indexed: 01/01/2023] Open
Abstract
Enamides with a free NH group have been evaluated as nucleophiles in chiral Brønsted acid-catalyzed enantioselective α-amidoalkylation reactions of bicyclic hydroxylactams for the generation of quaternary stereocenters. A quantitative structure-reactivity relationship (QSRR) method has been developed to find a useful tool to rationalize the enantioselectivity in this and related processes and to orient the catalyst choice. This correlative perturbation theory (PT)-QSRR approach has been used to predict the effect of the structure of the substrate, nucleophile, and catalyst, as well as the experimental conditions, on the enantioselectivity. In this way, trends to improve the experimental results could be found without engaging in a long-term empirical investigation.
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Affiliation(s)
- Eider Aranzamendi
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
| | - Sonia Arrasate
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
| | - Nuria Sotomayor
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
| | - Humberto González‐Díaz
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
- IKERBASQUEBasque Foundation for Science48080BilbaoSpain
| | - Esther Lete
- Departamento de Química Orgánica IIFacultad de Ciencia y TecnologíaUniversidad del País Vasco/Euskal Herriko Unibertsitatea (UPV/EHU)Apdo. 64448080BilbaoSpain
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30
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Affiliation(s)
- Yi-Yong Huang
- Department
of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, P.R. China
| | - Chen Cai
- Department
of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, P.R. China
| | - Xing Yang
- Department
of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, P.R. China
| | - Zong-Chao Lv
- Department
of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, P.R. China
| | - Uwe Schneider
- EaStCHEM
School of Chemistry, The University of Edinburgh, The King’s Buildings, David
Brewster Road, Edinburgh EH9 3FJ, United Kingdom
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31
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Design and Preparation of Polymer Resin-Supported Proline Catalyst with Industrial Application Potential. ChemistrySelect 2016. [DOI: 10.1002/slct.201600404] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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32
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Zhang S, Cha L, Li L, Hu Y, Li Y, Zha Z, Wang Z. Asymmetric Formal Aza-Diels-Alder Reaction of Trifluoromethyl Hemiaminals with Enones Catalyzed by Primary Amines. J Org Chem 2016; 81:3177-87. [PMID: 27032965 DOI: 10.1021/acs.joc.6b00087] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A primary amine-catalyzed asymmetric formal aza-Diels-Alder reaction of trifluoromethyl hemiaminals with enones was developed via a chiral gem-diamine intermediate. This novel protocol allowed facile access to structurally diverse trifluoromethyl-substituted piperidine scaffolds with high stereoselectivity. The utility of this method was further demonstrated through a concise approach to biologically active 4-hydroxypiperidine. More importantly, a stepwise mechanism involving an asymmetric induction process was proposed to rationalize the positive correlation between the chirality of the gem-diamine intermediate and the formal aza-Diels-Alder product.
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Affiliation(s)
- Sheng Zhang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, PR China
| | - Lide Cha
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, PR China
| | - Lijun Li
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, PR China
| | - Yanbin Hu
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, PR China
| | - Yanan Li
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, PR China
| | - Zhenggen Zha
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, PR China
| | - Zhiyong Wang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry & Collaborative Innovation Center of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, PR China
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Simón L, Paton RS. QM/MM study on the enantioselectivity of spiroacetalization catalysed by an imidodiphosphoric acid catalyst: how confinement works. Org Biomol Chem 2016; 14:3031-9. [DOI: 10.1039/c6ob00045b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An explanation of why confined imidodiphosphoric acid catalyst succeeds where other chiral phosphoric acid catalysts fail.
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Affiliation(s)
- Luis Simón
- Facultad de Ciencias Químicas
- Universidad de Salamanca
- Salamanca E37004
- Spain
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