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Organocatalyst Design for the Stereoselective Annulation towards Bicyclic Diketones and Analogues. Symmetry (Basel) 2022. [DOI: 10.3390/sym14020355] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The Wieland–Miescher ketone, Hajos–Parrish–Eder–Sauer–Wiechert ketone, and their analogues are bicyclic diketones essential as building blocks for the synthesis of several natural and bioactive molecules. For this reason, since 1971, when Hajos and Parrish and Eder, Sauer, and Wiechert reported the stereoselective synthesis of these compounds promoted by L-proline, numerous methodologies and organocatalysts have been studied over the years with the aim of identifying increasingly efficient asymmetrical syntheses of these bicyclic ketones. This review will outline the methodological and stereochemical features of the organocatalytic stereoselective synthesis of these bicyclic scaffolds based on the different organocatalysts employed from 1971 until today. Particular emphasis will be given to the structural features of the catalysts and to the reaction conditions.
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2
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Ghosh T, Chatterjee J, Bhakta S. Gold-Catalyzed Hydroarylation Reactions: A Comprehensive Overview. Org Biomol Chem 2022; 20:7151-7187. [DOI: 10.1039/d2ob00960a] [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
The hydroarylation of alkynes, alkene, and, allene is a cost-effective and efficient way to incorporate unsaturated moieties into aromatic substrates. This review focuses on gold-catalyzed hydroarylation, which produces aromatic alkenes,...
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3
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Tamaribuchi K, Tian J, Akagawa K, Kudo K. Enantioselective Nitro‐Michael Addition Catalyzed by N‐Terminal Guanidinylated Helical Peptide. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Kenya Tamaribuchi
- Institute of Industrial Science The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153-8505 Japan
| | - Jiaqi Tian
- Institute of Industrial Science The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153-8505 Japan
| | - Kengo Akagawa
- Institute of Industrial Science The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153-8505 Japan
| | - Kazuaki Kudo
- Institute of Industrial Science The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153-8505 Japan
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4
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Synthesis, Biological, and Computational Evaluation of Antagonistic, Chiral Hydrobenzoin Esters of Arecaidine Targeting mAChR M1. Pharmaceuticals (Basel) 2020; 13:ph13120437. [PMID: 33266067 PMCID: PMC7760838 DOI: 10.3390/ph13120437] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 11/27/2020] [Accepted: 11/27/2020] [Indexed: 12/13/2022] Open
Abstract
Muscarinic acetylcholine receptors (mAChRs) are a pivotal constituent of the central and peripheral nervous system. Yet, therapeutic and diagnostic applications thereof are hampered by the lack of subtype selective ligands. Within this work, we synthesized and chemically characterized three different stereoisomers of hydrobenzoin esters of arecaidine by NMR, HR-MS, chiral chromatography, and HPLC-logP. All compounds are structurally eligible for carbon-11 labeling and show appropriate stability in Dulbecco’s phosphate-buffered saline (DPBS) and F12 cell culture medium. A competitive radioligand binding assay on Chinese hamster ovary cell membranes comprising the human mAChR subtypes M1-M5 showed the highest orthosteric binding affinity for subtype M1 and a strong influence of stereochemistry on binding affinity, which corresponds to in silico molecular docking experiments. Ki values toward M1 were determined as 99 ± 19 nM, 800 ± 200 nM, and 380 ± 90 nM for the (R,R)-, (S,S)-, and racemic (R,S)-stereoisomer, respectively, highlighting the importance of stereochemical variations in mAChR ligand development. All three stereoisomers were shown to act as antagonists toward mAChR M1 using a Fluo-4 calcium efflux assay. With respect to future positron emission tomography (PET) tracer development, the (R,R)-isomer appears especially promising as a lead structure due to its highest subtype selectivity and lowest Ki value.
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5
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Shimogaki M, Takeshima A, Kano T, Maruoka K. Enantioselective Synthesis of Monosaccharide Analogues by Two-Step Sequential Enamine Catalysis: Benzoyloxylation and Aldol Reaction. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mio Shimogaki
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo 606-8502 Kyoto Japan
| | - Aika Takeshima
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo 606-8502 Kyoto Japan
| | - Taichi Kano
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo 606-8502 Kyoto Japan
| | - Keiji Maruoka
- Department of Chemistry; Graduate School of Science; Kyoto University; Sakyo 606-8502 Kyoto Japan
- Graduate School of Pharmaceutical Sciences; Graduate School of Science; Kyoto University; Sakyo 606-8501 Kyoto Japan
- School of Chemical Engineering and Light Industry; Graduate School of Science; Guangdong University of Technology; 510006 Guangzhou China
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6
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Inomata K, Narita S. Novel stereoselective 1,2-rearrangement of Swaminathan ketone derivatives bearing a 7-membered ring under solvolysis conditions. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Leonelli F, Piergentili I, Lucarelli G, Migneco LM, Marini Bettolo R. Unexpected Racemization in the Course of the Acetalization of (+)-(S)-5-Methyl-Wieland–Miescher Ketone with 1,2-Ethanediol and TsOH under Classical Experimental Conditions. Int J Mol Sci 2019; 20:ijms20246147. [PMID: 31817544 PMCID: PMC6941009 DOI: 10.3390/ijms20246147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 11/29/2019] [Accepted: 12/01/2019] [Indexed: 11/23/2022] Open
Abstract
(+)-(S) and (−)-(R)-5-methyl-Wieland-Miescher ketone (+)-1 and (−)-1, are important synthons in the diastereo and enantioselective syntheses of biological and/or pharmacological interesting compounds. A key step in these syntheses is the chemoselective C(1)O acetalization to (+)-5 and (−)-5, respectively. Various procedures for this transformation have been described in the literature. Among them, the classical procedure based on the use of 1,2-ethanediol and TsOH in refluxing benzene in the presence of a Dean-Stark apparatus. Within our work on bioactive natural products, it occurred to us to observe the partial racemization of (+)-5 in the course of the acetalization of (+)-1 by means of the latter methodology. Aiming to investigate this drawback, which, to our best knowledge, has no precedents in the literature, we acetalized with 1,2-ethanediol and TsOH in refluxing benzene and in the presence of a Dean–Stark apparatus under various experimental conditions, enantiomerically pure (+)-1. It was found that the extent of racemization depends on the TsOH/(+)-1 and 1,2-ethanediol/(+)-1 ratios. Mechanism hypotheses for this partial and unexpected racemization are provided.
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Affiliation(s)
- Francesca Leonelli
- Dipartimento di Biologia Ambientale, Università degli Studi La Sapienza, Piazzale Aldo Moro 5, I-00185 Roma, Italy
- Correspondence: ; Tel.: +39-64991-3197
| | - Irene Piergentili
- Dipartimento di Chimica, Università degli Studi La Sapienza, Piazzale Aldo Moro 5, I-00185 Roma, Italy; (I.P.); (G.L.); (L.M.M.); (R.M.B.)
| | - Giulio Lucarelli
- Dipartimento di Chimica, Università degli Studi La Sapienza, Piazzale Aldo Moro 5, I-00185 Roma, Italy; (I.P.); (G.L.); (L.M.M.); (R.M.B.)
| | - Luisa Maria Migneco
- Dipartimento di Chimica, Università degli Studi La Sapienza, Piazzale Aldo Moro 5, I-00185 Roma, Italy; (I.P.); (G.L.); (L.M.M.); (R.M.B.)
| | - Rinaldo Marini Bettolo
- Dipartimento di Chimica, Università degli Studi La Sapienza, Piazzale Aldo Moro 5, I-00185 Roma, Italy; (I.P.); (G.L.); (L.M.M.); (R.M.B.)
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8
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Xu EJ, Song Y, Wei ZL, Wang R, Duan HF, Lin YJ, Yang QB, Li YX. Novel chiral proline-based organocatalysts with amide and thiourea–amine units for highly efficient asymmetric aldol reaction in saturated brine without additives. CAN J CHEM 2019. [DOI: 10.1139/cjc-2018-0352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A series of novel proline-based organocatalysts with amide and thiourea-amine units (7a–7f) were developed and evaluated in the asymmetric aldol reaction of 4-nitrobenzaldehyde with cyclohexanone. The organocatalyst (7c or 7d, 5 mol%) exhibited efficient catalytic activity to afford aldol products in high diastereoselectivity (up to >99:1), enantioselectivity (up to >99%), and yield (up to >96%) at 0 °C in saturated brine without adding an acid. Aldol products of benzaldehyde derivatives almost universally provide high diastereoselectivity and enantioselectivity.
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Affiliation(s)
- En-Jie Xu
- College of Chemistry, Jilin University, Changchun 130012, China
- College of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China
| | - Yan Song
- College of Materials Science and Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China
| | - Zhong-Lin Wei
- College of Chemistry, Jilin University, Changchun 130012, China
| | - Rui Wang
- College of Chemistry, Jilin University, Changchun 130012, China
| | - Hai-Feng Duan
- College of Chemistry, Jilin University, Changchun 130012, China
| | - Ying-Jie Lin
- College of Chemistry, Jilin University, Changchun 130012, China
| | - Qing-Biao Yang
- College of Chemistry, Jilin University, Changchun 130012, China
| | - Yao-Xian Li
- College of Chemistry, Jilin University, Changchun 130012, China
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9
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Leonelli F, Trombetta A, La Bella A, Lucarelli G, Demitri N, Lamba D, Migneco LM, Marini Bettolo R. Enantioselective Synthesis and X-ray Structure of (+)((4a S
,5 S
,8a S
)-5,8a-Dimethyl-7-methyleneoctahydro-2 H
-spiro[naphthalene-1,2′-[1,3]dioxolan]-5-yl)methyl-4-iodobenzoate. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801771] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Francesca Leonelli
- Dipartimento di Biologia Ambientale; Università degli Studi di Roma “La Sapienza”; Piazzale Aldo Moro, 5 00185 Roma Italy
| | - Andrea Trombetta
- Dipartimento di Chimica; Università degli Studi di Roma “La Sapienza”; Piazzale Aldo Moro, 5 00185 Roma Italy
| | - Angela La Bella
- Dipartimento di Chimica; Università degli Studi di Roma “La Sapienza”; Piazzale Aldo Moro, 5 00185 Roma Italy
| | - Giulio Lucarelli
- Dipartimento di Chimica; Università degli Studi di Roma “La Sapienza”; Piazzale Aldo Moro, 5 00185 Roma Italy
| | - Nicola Demitri
- Elettra-Sincrotrone S.S. 14; Km 163.5 in Area Science Park 34149 Basovizza, Trieste Italy
| | - Doriano Lamba
- Istituto di CristallografiaCNR, S.S. 14; Km 163.5 in Area Science Park 34149 Basovizza, Trieste Italy
| | - Luisa Maria Migneco
- Dipartimento di Chimica; Università degli Studi di Roma “La Sapienza”; Piazzale Aldo Moro, 5 00185 Roma Italy
| | - Rinaldo Marini Bettolo
- Dipartimento di Chimica; Università degli Studi di Roma “La Sapienza”; Piazzale Aldo Moro, 5 00185 Roma Italy
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10
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Affiliation(s)
- András A. Gurka
- Department of Organic Chemistry, University of Szeged, Dóm tér 8, H-6720 Szeged, Hungary
| | - Gábor London
- MTA-SZTE Stereochemistry Research Group, Dóm tér 8, H-6720 Szeged, Hungary
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11
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Haque MA, Jana CK. Regiodivergent Remote Arylation of Cycloalkanols to Dysideanone's Fused Carbotetracycles and Its Bridged Isomers. Chemistry 2017; 23:13300-13304. [PMID: 28771837 DOI: 10.1002/chem.201703094] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Indexed: 01/22/2023]
Abstract
Regiodivergent γ and γ' arylations across an all-carbon quaternary center of cycloalkanols to access enantioenriched fused and bridged carbotetracycles are reported. The conformation of the carbocation guided either sequential stereospecific β-C-Me/γ-C-H-shifts or β-C-Me/γ'-C-H-shifts, providing fused carbotetracyclic analogs of dysideanone or bridged tetracycles, respectively. The reaction is highly stereoselective in building three contiguous stereocenters, where one, two, or three could be all-carbon quaternary centers. Interestingly, mechanistic studies revealed a crucial role of a methyl substituent in controlling regioselectivity.
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Affiliation(s)
- Md Ashraful Haque
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, 781039, India
| | - Chandan K Jana
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, 781039, India
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12
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Cañellas S, Ayats C, Henseler AH, Pericàs MA. A Highly Active Polymer-Supported Catalyst for Asymmetric Robinson Annulations in Continuous Flow. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03286] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Santiago Cañellas
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avda. Països Catalans 16, E-43007 Tarragona, Spain
| | - Carles Ayats
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avda. Països Catalans 16, E-43007 Tarragona, Spain
| | - Andrea H. Henseler
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avda. Països Catalans 16, E-43007 Tarragona, Spain
| | - Miquel A. Pericàs
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Avda. Països Catalans 16, E-43007 Tarragona, Spain
- Departament
de Química Inorgànica i Orgànica, Universitat de Barcelona, 08028 Barcelona, Spain
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13
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A comprehensive investigation and optimisation on the proteinogenic amino acid catalysed homo aldol condensation. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.11.069] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Inomata K, Endo Y, Honda S. Enantiodivergent Synthesis of Wieland-Miescher Ketone Analog Mediated by a Chiral Pyridinylmethylamine Derivative. HETEROCYCLES 2015. [DOI: 10.3987/com-14-s(k)63] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Ning X, Guo Y, Wang X, Ma X, Tian C, Shi X, Zhu R, Cheng C, Du Y, Ma Z, Zhang Z, Liu J. Design, Synthesis, and Biological Evaluation of (E)-3,4-Dihydroxystyryl Aralkyl Sulfones and Sulfoxides as Novel Multifunctional Neuroprotective Agents. J Med Chem 2014; 57:4302-12. [DOI: 10.1021/jm500258v] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
| | | | | | | | | | | | | | - Can Cheng
- Department
of Pharmaceutical Chemistry, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Yansheng Du
- Department
of Neurology, Indiana University School of Medicine, Indianapolis, Indiana 46202, United States
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16
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Kühbeck D, Bachl J, Schön EM, Gotor-Fernández V, Díaz Díaz D. Gelatin Protein-Mediated Direct Aldol Reaction. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201300380] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Miyamae N, Watanabe N, Moritaka M, Nakano K, Ichikawa Y, Kotsuki H. Asymmetric organocatalytic desymmetrization of 4,4-disubstituted cyclohexadienones at high pressure: a new powerful strategy for the synthesis of highly congested chiral cyclohexenones. Org Biomol Chem 2014; 12:5847-55. [DOI: 10.1039/c4ob00733f] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A highly diastereoselective and enantioselective method for the asymmetric desymmetrization of 4,4-disubstituted cyclohexadienones at high pressure was developed.
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Affiliation(s)
- Naomu Miyamae
- Laboratory of Natural Products Chemistry
- Faculty of Science
- Kochi University
- Kochi 780-8520, Japan
| | - Naruhisa Watanabe
- Laboratory of Natural Products Chemistry
- Faculty of Science
- Kochi University
- Kochi 780-8520, Japan
| | - Maya Moritaka
- Laboratory of Natural Products Chemistry
- Faculty of Science
- Kochi University
- Kochi 780-8520, Japan
| | - Keiji Nakano
- Laboratory of Natural Products Chemistry
- Faculty of Science
- Kochi University
- Kochi 780-8520, Japan
| | - Yoshiyasu Ichikawa
- Laboratory of Natural Products Chemistry
- Faculty of Science
- Kochi University
- Kochi 780-8520, Japan
| | - Hiyoshizo Kotsuki
- Laboratory of Natural Products Chemistry
- Faculty of Science
- Kochi University
- Kochi 780-8520, Japan
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18
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Yang X, Wang J, Li P. Recent progress on asymmetric organocatalytic construction of chiral cyclohexenone skeletons. Org Biomol Chem 2014; 12:2499-513. [DOI: 10.1039/c3ob42293c] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Chiral cyclohex-2-enones are important intermediates in synthetic chemistry as well as in the life science industries. In this focus review, recent advances in the organocatalytic asymmetric synthesis of chiral cyclohex-2-enone skeletons are summarized. The reaction mechanisms are also briefly discussed.
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Affiliation(s)
- Xin Yang
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen, P. R. China
| | - Jun Wang
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen, P. R. China
| | - Pengfei Li
- Department of Chemistry
- South University of Science and Technology of China
- Shenzhen, P. R. China
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19
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Inomata K, Endo Y. Synthesis of 2-Substituted 1,3-Cycloheptanedione via a Lewis Acid Mediated Ring Expansion Reaction. HETEROCYCLES 2014. [DOI: 10.3987/com-13-s(s)55] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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20
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Kühbeck D, Bijayi Dhar B, Schön EM, Cativiela C, Gotor-Fernández V, Díaz Díaz D. C-C Bond formation catalyzed by natural gelatin and collagen proteins. Beilstein J Org Chem 2013; 9:1111-8. [PMID: 23843902 PMCID: PMC3701417 DOI: 10.3762/bjoc.9.123] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Accepted: 05/16/2013] [Indexed: 11/23/2022] Open
Abstract
The activity of gelatin and collagen proteins towards C–C bond formation via Henry (nitroaldol) reaction between aldehydes and nitroalkanes is demonstrated for the first time. Among other variables, protein source, physical state and chemical modification influence product yield and kinetics, affording the nitroaldol products in both aqueous and organic media under mild conditions. Significantly, the scale-up of the process between 4-nitrobenzaldehyde and nitromethane is successfully achieved at 1 g scale and in good yield. A comparative kinetic study with other biocatalysts shows an increase of the first-order rate constant in the order chitosan < gelatin < bovine serum albumin (BSA) < collagen. The results of this study indicate that simple edible gelatin can promote C–C bond forming reactions under physiological conditions, which may have important implications from a metabolic perspective.
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Affiliation(s)
- Dennis Kühbeck
- Institut für Organische Chemie, Universität Regensburg, Universitätsstr. 31, Regensburg 93053, Germany, Tel: + 49 941 943 4681
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21
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Rohr K, Mahrwald R. Isoleucine-Catalyzed Direct Asymmetric Aldol Addition of Enolizable Aldehydes. Org Lett 2012; 14:2180-3. [DOI: 10.1021/ol300754n] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kerstin Rohr
- Institute of Chemistry, Humboldt-University, Brook-Taylor Sr. 2, 12489 Berlin, Germany
| | - Rainer Mahrwald
- Institute of Chemistry, Humboldt-University, Brook-Taylor Sr. 2, 12489 Berlin, Germany
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22
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Amino-acid-mediated epoxidation of α,β-unsaturated ketones by hydrogen peroxide in aqueous media. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.03.115] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Hiroya K, Suwa Y, Ichihashi Y, Inamoto K, Doi T. Total synthesis of optically active lycopladine A by utilizing diastereoselective protection of carbonyl group in a 1,3-cyclohexanedione derivative. J Org Chem 2011; 76:4522-32. [PMID: 21542635 DOI: 10.1021/jo200418y] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We successfully synthesized two enantiomers of bicyclic enones, (7R,7aR)- and (7S,7aS)-9, from the hemiacetal 2a, which we first synthesized from the symmetrical diketone 1a via diastereoselective carbon-oxygen bond formation between one of the carbonyl groups and the chiral alcohol on the C2 side chain in a 2,2-disubstituted 1,3-cycloalkanedione derivative. We also report the total synthesis of natural (+)-lycopladine A [(+)-6] from (7R,7aR)-9 and the formal synthesis of unnatural (-)-lycopladine A [(-)-6] from (7S,7aS)-9.
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Affiliation(s)
- Kou Hiroya
- Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba-ku, Sendai, Japan.
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24
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Binder CM, Singaram B. Asymmetric Addition of Diorganozinc Reagents to Aldehydes and Ketones. ORG PREP PROCED INT 2011. [DOI: 10.1080/00304948.2011.564538] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Balducci E, Attolino E, Taddei M. A Stereoselective and Practical Synthesis of (E)-α,β-Unsaturated Ketones from Aldehydes. European J Org Chem 2010. [DOI: 10.1002/ejoc.201001182] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Hiroya K, Ichihashi Y, Suwa Y, Ikai T, Inamoto K, Doi T. Facile synthesis of asymmetric quaternary centers based on diastereoselective protection of the carbonyl group at the symmetrical position. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.05.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Duarte FJS, Cabrita EJ, Frenking G, Santos AG. Asymmetric Intramolecular Aldol Reactions of Substituted 1,7-Dicarbonylic Compounds. A Mechanistic Study. J Org Chem 2010; 75:2546-55. [DOI: 10.1021/jo100026h] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- F. J. S. Duarte
- REQUIMTE, CQFB, Departamento de Química, Faculdade de Ciências e Tecnologia (FCT), Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - E. J. Cabrita
- REQUIMTE, CQFB, Departamento de Química, Faculdade de Ciências e Tecnologia (FCT), Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - G. Frenking
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein Strasse, 35032 Marburg, Germany
| | - A. Gil Santos
- REQUIMTE, CQFB, Departamento de Química, Faculdade de Ciências e Tecnologia (FCT), Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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28
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Ramachary DB, Vijayendar Reddy Y. A general approach to chiral building blocks via direct amino acid-catalyzed cascade three-component reductive alkylations: formal total synthesis of HIV-1 protease inhibitors, antibiotic agglomerins, brefeldin A, and (R)-gamma-hexanolide. J Org Chem 2010; 75:74-85. [PMID: 19954143 DOI: 10.1021/jo901799n] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Multicatalysis cascade (MCC) process for the synthesis of highly substituted chiral building blocks (2-alkyl-CH-acids, 2-alkylcyclohexane-1,3-diones, 2-alkylcyclopentane-1,3-diones, and H-P ketone analogues) is presented based on the cascade three-component reductive alkylation's (TCRA) platform. Herein, we developed the high-yielding alkylation of a variety of CH-acids with (R)-glyceraldehyde acetonide/(S)-Garner aldehyde and Hantzsch ester through amino acid-catalyzed TCRA reaction without racemization at the alpha-position to carbonyl. Direct sequential combination of the L-proline-catalyzed TCRA reaction with other reactions like cascade alkylation/ketenization/esterification (A/K/E), alkylation/ketenization/esterification/alkylation (A/K/E/A), Brønsted acid-catalyzed cascade hydrolysis/lactonization/esterification (H/L/E), hydrolysis/esterification (H/E), hydrolysis/oxy-Michael/dehydration (H/OM/DH), and Robinson annulation (RA) of CH-acids, chiral aldehydes, Hantzsch ester, diazomethane, methyl vinyl ketone, various active olefins, and acetylenes furnished the highly functionalized chiral building blocks in good to high yields with excellent diastereoselectivities. In this context, many of the pharmaceutically applicable chiral building blocks were prepared via MCC reactions.
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Affiliation(s)
- Dhevalapally B Ramachary
- School of Chemistry, University of Hyderabad, Central University (PO), Hyderabad 500 046, India.
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29
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Fehr C, Buzas A, Knopff O, de Saint Laumer JY. (+)-(R,Z)-5-Muscenone and (−)-(R)-Muscone by Enantioselective Aldol Reaction and Grob Fragmentation. Chemistry 2010; 16:2487-95. [DOI: 10.1002/chem.200902774] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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30
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Chen L, Luo S, Li J, Li X, Cheng JP. Organocatalytic kinetic resolution via intramolecular aldol reactions: Enantioselective synthesis of both enantiomers of chiral cyclohexenones. Org Biomol Chem 2010; 8:2627-32. [DOI: 10.1039/b927343c] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Markert M, Scheffler U, Mahrwald R. Asymmetric Histidine-Catalyzed Cross-Aldol Reactions of Enolizable Aldehydes: Access to Defined Configured Quaternary Stereogenic Centers. J Am Chem Soc 2009; 131:16642-3. [DOI: 10.1021/ja907054y] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Morris Markert
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor Str. 2, 12489 Berlin, Germany
| | - Ulf Scheffler
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor Str. 2, 12489 Berlin, Germany
| | - Rainer Mahrwald
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor Str. 2, 12489 Berlin, Germany
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32
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Bradshaw B, Etxebarría-Jardi G, Bonjoch J, Viózquez S, Guillena G, Nájera C. Efficient Solvent-Free Robinson Annulation Protocols for the Highly Enantioselective Synthesis of the Wieland-Miescher Ketone and Analogues. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900321] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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33
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Wang X, Butler SC, Gallucci JC, Paquette LA. Enolization regioselectivity involving stereoisomeric 4a-methyl-5-methoxyperhydrobenzo[7]annulen-2-ones. J Org Chem 2009; 74:6825-30. [PMID: 19642628 DOI: 10.1021/jo901391d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Efficient synthetic routes to the four isomers 17b-20b of the title ketone are described. Entry begins from the Wieland-Miescher homologue 3 whose pair of carbonyl groups are amenable to regiochemical manipulation. The compositions of the reaction mixtures generated under kinetic or thermodynamic control were defined by (1)H NMR analysis subsequent to chromatographic purification. The regiochemical trends are correlated with B3LYP/6-31G* calculations, the results of which conform to the preferred introduction of a 1,2- or 2,3-double bond.
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Affiliation(s)
- Xiaozhao Wang
- Evans Chemical Laboratories, The Ohio State University, Columbus, Ohio 43210, USA
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34
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Hiroya K, Ichihashi Y, Furutono A, Inamoto K, Sakamoto T, Doi T. Development of Diastereoselective Birch Reduction−Alkylation Reactions of Bi- and Tricyclic β-Alkoxy-α,β-unsaturated Ketones. J Org Chem 2009; 74:6623-30. [DOI: 10.1021/jo901094x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kou Hiroya
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki, Aza Aoba, Aoba-ku, Sendai 980-8578 Japan
| | - Yusuke Ichihashi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki, Aza Aoba, Aoba-ku, Sendai 980-8578 Japan
| | - Ai Furutono
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki, Aza Aoba, Aoba-ku, Sendai 980-8578 Japan
| | - Kiyofumi Inamoto
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki, Aza Aoba, Aoba-ku, Sendai 980-8578 Japan
| | - Takao Sakamoto
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki, Aza Aoba, Aoba-ku, Sendai 980-8578 Japan
| | - Takayuki Doi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aramaki, Aza Aoba, Aoba-ku, Sendai 980-8578 Japan
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35
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36
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Binder CM, Bautista A, Zaidlewicz M, Krzemiński MP, Oliver A, Singaram B. Dual stereoselectivity in the dialkylzinc reaction using (-)-beta-pinene derived amino alcohol chiral auxiliaries. J Org Chem 2009; 74:2337-43. [PMID: 19216500 DOI: 10.1021/jo802371z] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
(+)-Nopinone, prepared from naturally occurring (-)-beta-pinene, was converted to the two regioisomeric amino alcohols 3-MAP and 2-MAP in very good yield and excellent isomeric purity. Amino alcohol 3-MAP was synthesized by converting (+)-nopinone to the corresponding alpha-ketooxime. This was reduced to the primary amino alcohol and was converted to the morpholino group through a simple substitution reaction. 3-MAP was characterized by X-ray crystallography, which displayed the rigidity of the pinane framework. Amino alcohol 2-MAP was prepared from its trans isomer 2, which in turn was synthesized via hydroboration/oxidation of the morpholine enamine of (+)-nopinone. Two-dimensional NMR was used to characterize amino alcohol 2-MAP, and NOE was used to confirm its relative stereochemistry. These amino alcohols were employed as chiral auxiliaries in the addition of diethylzinc to benzaldehyde to obtain near-quantitative asymmetric induction in the products. The use of 3-MAP yielded (S)-phenylpropanol in 99% ee, and its regioisomer 2-MAP gave the opposite enantiomer, (R)-phenylpropanol, also in 99% ee. Other aromatic, aliphatic, and alpha,beta-unsaturated aldehydes were implemented in this method, affording secondary alcohols in high yield and enantiomeric excess. Amino alcohols 2-MAP and 3-MAP were also found to be useful in the dimethylzinc addition reaction, both catalyzing the addition to benzaldehyde with nearly quantitative ee. Regioisomeric amino alcohols 2-MAP and 3-MAP, even though they were prepared from one enantiomer of nopinone, provide antipodal enantiofacial selectivity in the dialkylzinc addition reaction. This circumvents the necessity to synthesize amino alcohols derived from (-)-nopinone, which in turn requires the unnatural (+)-beta-pinene. Possible mechanistic insights are offered to explain the dual stereoselectivity observed in the diethylzinc addition reaction involving regioisomeric, pseudo-enantiomeric amino alcohols 3-MAP and 2-MAP.
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Affiliation(s)
- Caitlin M Binder
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, 1156 High Street, Santa Cruz, California 95064, USA
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37
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Chen F, Huang S, Zhang H, Liu F, Peng Y. Proline-based dipeptides with two amide units as organocatalyst for the asymmetric aldol reaction of cyclohexanone with aldehydes. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.07.051] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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Affiliation(s)
- Santanu Mukherjee
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim an der Ruhr, Germany
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39
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Kotsuki H, Ikishima H, Okuyama A. Organocatalytic Asymmetric Synthesis Using Proline and Related Molecules. Part 1. HETEROCYCLES 2008. [DOI: 10.3987/rev-07-620] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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40
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Inomata K, Nagamine T, Endo Y. A New Chiral Synthesis of a Bicyclic Enedione Containing a Seven-Membered Ring Mediated by a Combination of Chiral Amine and Brønsted Acid. HETEROCYCLES 2008. [DOI: 10.3987/com-08-s(n)81] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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41
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Gallucci JC, Inomata K, Dura RD, Paquette LA. (+)-(1S,5R,10S)-11,11-Dimeth-yl-4-oxa-tricyclo-[8.4.0.0]tetra-deca-ne-3,12-dione. Acta Crystallogr Sect E Struct Rep Online 2007; 64:o287. [PMID: 21200853 PMCID: PMC2915339 DOI: 10.1107/s1600536807066159] [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: 11/20/2007] [Accepted: 12/07/2007] [Indexed: 11/23/2022]
Abstract
The title compound, C(15)H(22)O(3), was prepared via amino-acid-promoted Robinson annulation followed by tandem Pd/C-mediated hydrogenation and oxidative cyclization. This product was instrumental in determining the feasibility of a stereocontrolled hydrogenation in which the directing hydroxyl group is adjacent to the 6-7-ring network and its olefinic component. The asymmetric unit consists of a single mol-ecule with normal geometric parameters. The absolute configuration was assigned based on the known enanti-omeric prescursor. Inter-molecular C-H⋯O inter-actions link each mol-ecule with four neighboring mol-ecules.
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Affiliation(s)
- Judith C. Gallucci
- Evans Chemical Laboratories, The Ohio State University, 100 W. 18th Avenue, Columbus, OH 43210, USA
| | - Kohei Inomata
- Evans Chemical Laboratories, The Ohio State University, 100 W. 18th Avenue, Columbus, OH 43210, USA
| | - Robert D. Dura
- Evans Chemical Laboratories, The Ohio State University, 100 W. 18th Avenue, Columbus, OH 43210, USA
| | - Leo A. Paquette
- Evans Chemical Laboratories, The Ohio State University, 100 W. 18th Avenue, Columbus, OH 43210, USA
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42
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Guillena G, Nájera C, Ramón DJ. Enantioselective direct aldol reaction: the blossoming of modern organocatalysis. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.09.025] [Citation(s) in RCA: 311] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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43
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Ramachary DB, Kishor M. Organocatalytic sequential one-pot double cascade asymmetric synthesis of Wieland-Miescher ketone analogues from a Knoevenagel/hydrogenation/Robinson annulation sequence: scope and applications of organocatalytic biomimetic reductions. J Org Chem 2007; 72:5056-68. [PMID: 17552564 DOI: 10.1021/jo070277i] [Citation(s) in RCA: 159] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A practical and novel organocatalytic chemo- and enantioselective process for the cascade synthesis of highly substituted 2-alkyl-cyclohexane-1,3-diones and Wieland-Miescher (W-M) ketone analogs is presented via reductive alkylation as a key step. First time, we developed the one-step alkylation of dimedone and 1,3-cyclohexanedione with aldehydes and Hantzsch ester through an organocatalytic reductive alkylation strategy. Direct combination of l-proline-catalyzed cascade Knoevenagel/hydrogenation and cascade Robinson annulation of CH acids (dimedone and 1,3-cyclohexanedione), aldehydes, Hantzsch ester, and methyl vinyl ketone furnished the highly functionalized W-M ketone analogues in good to high yields and with excellent enantioselectivities. Many of the reductive alkylation products show a direct application in pharmaceutical chemistry.
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Affiliation(s)
- Dhevalapally B Ramachary
- School of Chemistry, University of Hyderabad, Central University (PO), Hyderabad 500 046, India.
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44
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Direct asymmetric aldol reactions catalyzed by a siloxy serine organocatalyst in water. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.tetasy.2007.05.025] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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45
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Inomata K, Akahane Y, Inage N, Nagamine T, Endo Y. An Alternative Chiral Synthesis of Wieland-Miescher Ketone Mediated by (S)-2-(Pyrrolidinylmethyl)pyrrolidine: Remarkable Effects of Brønsted Acid. HETEROCYCLES 2007. [DOI: 10.3987/com-07-s(w)44] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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46
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Nagamine T, Inomata K, Endo Y. Enantioselective Intramolecular Aldol Reaction Mediated by a Combination of L-Amino Acid and Bronsted Acid to Construct a Bicyclic Enedione Containing a 7-Membered Ring. Chem Pharm Bull (Tokyo) 2007; 55:1710-2. [DOI: 10.1248/cpb.55.1710] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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