1
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Kim H, Kim SG. [4 + 2] Annulation of δ-Hydroxy/δ-Sulfonamido-α,β-Unsaturated Ketones with Azlactones for Diastereoselective Synthesis of Highly Substituted 3-Amino-δ-Lactones and 3-Amino-δ-Lactams. J Org Chem 2023; 88:3830-3844. [PMID: 36877789 DOI: 10.1021/acs.joc.3c00065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
The first base-mediated [4 + 2] annulation of δ-hydroxy-α,β-unsaturated ketones with azlactones has been developed, through which 3,4-disubstituted 3-amino-δ-lactones were obtained in good yields and with excellent diastereoselectivities. This approach was also applied to the [4 + 2] annulation of δ-sulfonamido-α,β-unsaturated ketones, which provided a practical protocol for constructing biologically important 3-amino-δ-lactam frameworks.
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Affiliation(s)
- Heebum Kim
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42 Gwanggyosan-ro, Yeongtong-gu, Suwon 16227, Republic of Korea
| | - Sung-Gon Kim
- Department of Chemistry, College of Natural Science, Kyonggi University, 154-42 Gwanggyosan-ro, Yeongtong-gu, Suwon 16227, Republic of Korea
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2
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Asano K, Matsubara S. Organocatalytic Access to Tetrasubstituted Chiral Carbons Integrating Functional Groups. CHEM REC 2022:e202200200. [PMID: 36163471 DOI: 10.1002/tcr.202200200] [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: 08/08/2022] [Revised: 09/08/2022] [Indexed: 12/15/2022]
Abstract
Three-dimensional organic structures containing sp3 carbons bearing four non-hydrogen substituents can provide drug-like molecules. Although such complex structures are challenging targets in synthetic organic chemistry, efficient synthetic approaches will open a new chemical space for pharmaceutical candidates. This review provides an account of our recent achievements in developing organocatalytic approaches to attractive molecular platforms based on optically active sp3 carbons integrating four different functional groups. These methodologies include asymmetric cycloetherification and cyanation of multifunctional ketones, both of which take advantage of the mild characteristics of organocatalytic activation. Enzyme-like but non-enzymatic organocatalytic systems can be used to precisely manufacture molecules containing complex chiral structures without substrate specificity problems. In addition, these catalytic systems control not only stereoselectivity but also site-selectivity and do not induce side reactions even from substrates with rich functionality.
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Affiliation(s)
- Keisuke Asano
- Institute for Catalysis, Hokkaido University Sapporo, Hokkaido, 001-0021, Japan
| | - Seijiro Matsubara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University Kyotodaigaku-Katsura, Nishikyo, Kyoto, 615-8510, Japan
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3
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Sandvoß A, Maag H, Daniliuc CG, Schollmeyer D, Wahl JM. Dynamic kinetic resolution of transient hemiketals: a strategy for the desymmetrisation of prochiral oxetanols. Chem Sci 2022; 13:6297-6302. [PMID: 35733901 PMCID: PMC9159106 DOI: 10.1039/d2sc01547a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 05/03/2022] [Indexed: 11/21/2022] Open
Abstract
Identification of an electron poor trifluoroacetophenone allows the formation of uniquely stable hemiketals from prochiral oxetanols. When exposed to a cobalt(ii) catalyst, efficient ring-opening to densely functionalized dioxolanes is observed. Mechanistic studies suggest an unprecedented redox process between the cobalt(ii) catalyst and the hemiketal that initiates the oxetane-opening. Based on this observation, a dynamic kinetic resolution of the transient hemiketals is explored that uses a Katsuki-type ligand for stereoinduction (up to 99 : 1 dr and 96 : 4 er) and allows a variety of 1,3-dioxolanes to be accessed (20 examples up to 98% yield). Desymmetrization of prochiral oxetanols via an electron-deficient hemiketal intermediate is achieved. Key to this process is the catalyst's chiral recognition of one of the two hemiketal enantiomers enabling an efficient dynamic kinetic resolution.![]()
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Affiliation(s)
- Alexander Sandvoß
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Corrensstraße 36 48149 Münster Germany.,Department Chemie, Johannes Gutenberg-Universität Duesbergweg 10-14 55128 Mainz Germany
| | - Henning Maag
- Department Chemie, Johannes Gutenberg-Universität Duesbergweg 10-14 55128 Mainz Germany
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Corrensstraße 36 48149 Münster Germany
| | - Dieter Schollmeyer
- Department Chemie, Johannes Gutenberg-Universität Duesbergweg 10-14 55128 Mainz Germany
| | - Johannes M Wahl
- Department Chemie, Johannes Gutenberg-Universität Duesbergweg 10-14 55128 Mainz Germany
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4
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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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5
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Murata K, Minami R, Fuwa H. Asymmetric Synthesis of (−)-Atorvastatin Calcium by Tandem Catalysis. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Keisuke Murata
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Riko Minami
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Haruhiko Fuwa
- Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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6
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Asano K. Multipoint Recognition of Molecular Conformations with Organocatalysts for Asymmetric Synthetic Reactions. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200343] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Keisuke Asano
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8510, Japan
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7
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Murata R, Matsumoto A, Asano K, Matsubara S. Desymmetrization of gem-diols via water-assisted organocatalytic enantio- and diastereoselective cycloetherification. Chem Commun (Camb) 2020; 56:12335-12338. [PMID: 32896841 DOI: 10.1039/d0cc05509c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The first desymmetrization of gem-diols forming chiral hemiketal carbons was accomplished via organocatalytic enantio- and diastereoselective cycloetherification, which afforded optically active tetrahydropyrans containing a chiral hemiketal carbon and tetrasubstituted stereocenters bearing synthetically versatile fluorinated groups. The desymmetrization of silanediols was also demonstrated as an asymmetric route to chiral silicon centers.
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Affiliation(s)
- Ryuichi Murata
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8510, Japan.
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8
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Murata K, Takeshita H, Sakamoto K, Fuwa H. Tandem Three‐Component Synthesis of
syn
‐1,2‐ and
syn
‐1,3‐Diol Derivatives. Chem Asian J 2020; 15:807-819. [DOI: 10.1002/asia.201901660] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/24/2020] [Indexed: 02/03/2023]
Affiliation(s)
- Keisuke Murata
- Department of Applied Chemistry Faculty of Science and EngineeringChuo University 1-13-27 Kasuga Bunkyo-ku, Tokyo 112-8551 Japan
| | - Hiroya Takeshita
- Department of Applied Chemistry Faculty of Science and EngineeringChuo University 1-13-27 Kasuga Bunkyo-ku, Tokyo 112-8551 Japan
| | - Keita Sakamoto
- Department of Applied Chemistry Faculty of Science and EngineeringChuo University 1-13-27 Kasuga Bunkyo-ku, Tokyo 112-8551 Japan
| | - Haruhiko Fuwa
- Department of Applied Chemistry Faculty of Science and EngineeringChuo University 1-13-27 Kasuga Bunkyo-ku, Tokyo 112-8551 Japan
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9
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Bera T, Singh B, Hamlin TA, Sahoo SC, Saha J. One-Step Assembly of Functionalized Morpholinones and 1,4-Oxazepane-3-ones via [3 + 3]- and [3 + 4]-Annulation of Aza-Oxyallyl Cation and Amphoteric Compounds. J Org Chem 2019; 84:15255-15266. [PMID: 31702149 DOI: 10.1021/acs.joc.9b02269] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new [3 + 3]- and [3 + 4]-annulation strategy involving azaoxyallyl cation and [1,m]-amphoteric compounds (m = 3,4) is presented. This concise method enables easy assembly of functionalized saturated N-heterocycles, comprised of six-and seven-membered rings and is of high significance in the context of drug discovery approaches. This reaction also represents a new trapping modality of the azaoxyallyl cation with amphoteric agents of different chain lengths that consist of a heteroatom nucleophilic site and a π-electrophilic site.
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Affiliation(s)
- Tishyasoumya Bera
- Division of Molecular Synthesis & Drug Discovery , Centre of Biomedical Research (CBMR) , SGPGIMS Campus. Raebareli Road , Lucknow 226014 , Uttar Pradesh , India
| | - Bandana Singh
- Division of Molecular Synthesis & Drug Discovery , Centre of Biomedical Research (CBMR) , SGPGIMS Campus. Raebareli Road , Lucknow 226014 , Uttar Pradesh , India
| | - Trevor A Hamlin
- Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling (ACMM) , Vrije Universiteit Amsterdam , De Boelelaan 1083 , Amsterdam 1081 HV , The Netherlands
| | - Subash C Sahoo
- Department of Chemistry , Panjab University , Sector 14 , Chandigarh 160014 , India
| | - Jaideep Saha
- Division of Molecular Synthesis & Drug Discovery , Centre of Biomedical Research (CBMR) , SGPGIMS Campus. Raebareli Road , Lucknow 226014 , Uttar Pradesh , India
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10
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Matsumoto A, Asano K, Matsubara S. Asymmetric
syn
‐1,3‐Dioxane Construction via Kinetic Resolution of Secondary Alcohols Using Chiral Phosphoric Acid Catalysts. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900239] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Akira Matsumoto
- Department of Material Chemistry Graduate School of EngineeringKyoto University Kyotodaigaku-katsura, Nishikyo Kyoto 615-8510 Japan
| | - Keisuke Asano
- Department of Material Chemistry Graduate School of EngineeringKyoto University Kyotodaigaku-katsura, Nishikyo Kyoto 615-8510 Japan
| | - Seijiro Matsubara
- Department of Material Chemistry Graduate School of EngineeringKyoto University Kyotodaigaku-katsura, Nishikyo Kyoto 615-8510 Japan
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11
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Matsumoto A, Asano K, Matsubara S. Organocatalytic Enantio- and Diastereoselective Construction of syn-1,3-Diol Motifs via Dynamic Kinetic Resolution of In Situ Generated Chiral Cyanohydrins. Org Lett 2019; 21:2688-2692. [DOI: 10.1021/acs.orglett.9b00677] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Akira Matsumoto
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8510, Japan
| | - Keisuke Asano
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8510, Japan
| | - Seijiro Matsubara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyotodaigaku-Katsura, Nishikyo, Kyoto 615-8510, Japan
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12
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Spreider PA, Breit B. Palladium-Catalyzed Stereoselective Cyclization of in Situ Formed Allenyl Hemiacetals: Synthesis of Rosuvastatin and Pitavastatin. Org Lett 2018; 20:3286-3290. [DOI: 10.1021/acs.orglett.8b01156] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Pierre A. Spreider
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
| | - Bernhard Breit
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
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13
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Mondal K, Pan SC. Organocatalytic Asymmetric Domino Michael/Acyl Transfer Reaction between γ/δ-Hydroxyenones and α-Nitroketones. J Org Chem 2018; 83:5301-5312. [DOI: 10.1021/acs.joc.8b00436] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Keshab Mondal
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam 781039, India
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14
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Hayashi Y, Saitoh T, Arase H, Kawauchi G, Takeda N, Shimasaki Y, Sato I. Two-Pot Synthesis of Chiral 1,3-syn
-Diols through Asymmetric Organocatalytic Aldol and Wittig Reactions Followed by Domino Hemiacetal/Oxy-Michael Reactions. Chemistry 2018; 24:4909-4915. [DOI: 10.1002/chem.201705930] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Yujiro Hayashi
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Takanobu Saitoh
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Hiromu Arase
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Genki Kawauchi
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Naohiro Takeda
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Yasuharu Shimasaki
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Itaru Sato
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza Aoba, Aoba-ku Sendai 980-8578 Japan
- Present address: Department of Chemistry; Faculty of Science; Ibaraki University; Ibaraki 310-8512 Japan
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15
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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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16
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Orue A, Uria U, Roca-López D, Delso I, Reyes E, Carrillo L, Merino P, Vicario JL. Racemic hemiacetals as oxygen-centered pronucleophiles triggering cascade 1,4-addition/Michael reaction through dynamic kinetic resolution under iminium catalysis. Development and mechanistic insights. Chem Sci 2017; 8:2904-2913. [PMID: 28451356 PMCID: PMC5376714 DOI: 10.1039/c7sc00009j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 01/28/2017] [Indexed: 11/21/2022] Open
Abstract
2-Hydroxydihydropyran-5-ones behave as excellent polyfunctional reagents able to react with enals through oxa-Michael/Michael process cascade under the combination of iminium and enamine catalysis. These racemic hemiacetalic compounds are used as unconventional O-pronucleophiles in the initial oxa-Michael reaction, also leading to the formation of a single stereoisomer under a dynamic kinetic resolution (DKR) process. Importantly, by using β-aryl or β-alkyl substituted α,β-unsaturated substrates as initial Michael acceptors either kinetically or thermodynamically controlled diastereoisomers were formed with high stereoselection through the careful selection of the reaction conditions. Finally, a complete experimental and computational study confirmed the initially proposed DKR process during the catalytic oxa-Michael/Michael cascade reaction and also explained the kinetic/thermodynamic pathway operating in each case.
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Affiliation(s)
- Ane Orue
- Department of Organic Chemistry II , University of the Basque Country (UPV/EHU) , P.O. Box 644 , 48080 Bilbao , Spain
| | - Uxue Uria
- Department of Organic Chemistry II , University of the Basque Country (UPV/EHU) , P.O. Box 644 , 48080 Bilbao , Spain
| | - David Roca-López
- Departamento de Síntesis y Estructura de Biomoléculas , Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) , Universidad de Zaragoza , CSIC , Spain
| | - Ignacio Delso
- Servicio de Resonancia Magnética Nuclear , Centro de Química y Materiales de Aragón (CEQMA) , Universidad de Zaragoza , CSIC , Spain
| | - Efraím Reyes
- Department of Organic Chemistry II , University of the Basque Country (UPV/EHU) , P.O. Box 644 , 48080 Bilbao , Spain
| | - Luisa Carrillo
- Department of Organic Chemistry II , University of the Basque Country (UPV/EHU) , P.O. Box 644 , 48080 Bilbao , Spain
| | - Pedro Merino
- Departamento de Síntesis y Estructura de Biomoléculas , Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) , Universidad de Zaragoza , CSIC , Spain
| | - Jose L Vicario
- Department of Organic Chemistry II , University of the Basque Country (UPV/EHU) , P.O. Box 644 , 48080 Bilbao , Spain
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17
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Yoneda N, Matsumoto A, Asano K, Matsubara S. Asymmetric Cycloetherification via the Kinetic Resolution of Alcohols Using Chiral Phosphoric Acid Catalysts. CHEM LETT 2016. [DOI: 10.1246/cl.160727] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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18
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Zhang LD, Zhong LR, Xi J, Yang XL, Yao ZJ. Enantioselective Total Synthesis of Lycoposerramine-Z Using Chiral Phosphoric Acid Catalyzed Intramolecular Michael Addition. J Org Chem 2016; 81:1899-904. [DOI: 10.1021/acs.joc.5b02723] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Lan-De Zhang
- State Key Laboratory of Coordination
Chemistry, School of Chemistry and Chemical Engineering, Nanjing National
Laboratory of Microstructures, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
| | - Lin-Rui Zhong
- State Key Laboratory of Coordination
Chemistry, School of Chemistry and Chemical Engineering, Nanjing National
Laboratory of Microstructures, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
| | - Jie Xi
- State Key Laboratory of Coordination
Chemistry, School of Chemistry and Chemical Engineering, Nanjing National
Laboratory of Microstructures, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
| | - Xiao-Liang Yang
- State Key Laboratory of Coordination
Chemistry, School of Chemistry and Chemical Engineering, Nanjing National
Laboratory of Microstructures, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
| | - Zhu-Jun Yao
- State Key Laboratory of Coordination
Chemistry, School of Chemistry and Chemical Engineering, Nanjing National
Laboratory of Microstructures, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
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19
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Maity S, Parhi B, Ghorai P. Enantio- and Diastereoselective Synthesis ofexo-Peroxyacetals: An Organocatalyzed Peroxyhemiacetalization/oxa-Michael Addition Cascade. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201511165] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Sanjay Maity
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
| | - Biswajit Parhi
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
| | - Prasanta Ghorai
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
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20
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Maity S, Parhi B, Ghorai P. Enantio- and Diastereoselective Synthesis ofexo-Peroxyacetals: An Organocatalyzed Peroxyhemiacetalization/oxa-Michael Addition Cascade. Angew Chem Int Ed Engl 2016; 55:7723-7. [DOI: 10.1002/anie.201511165] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 01/04/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Sanjay Maity
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
| | - Biswajit Parhi
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
| | - Prasanta Ghorai
- Department of Chemistry; Indian Institute of Science Education and Research (IISER) Bhopal; Bhopal By-pass Road, Bhauri Bhopal- 462066 India
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21
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22
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Khomutnyk YY, Argüelles AJ, Winschel GA, Sun Z, Zimmerman PM, Nagorny P. Studies of the Mechanism and Origins of Enantioselectivity for the Chiral Phosphoric Acid-Catalyzed Stereoselective Spiroketalization Reactions. J Am Chem Soc 2015; 138:444-56. [DOI: 10.1021/jacs.5b12528] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yaroslav Ya. Khomutnyk
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
| | - Alonso J. Argüelles
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
| | - Grace A. Winschel
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
| | - Zhankui Sun
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
| | - Paul M. Zimmerman
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
| | - Pavel Nagorny
- Department of Chemistry, University of Michigan, 930 North University
Avenue, Ann Arbor, Michigan 48109, United States
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