1
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Wu XX, Ma T, Qiao XX, Zou CP, Li G, He Y, Zhao XJ. Enantioselective Alkynylation of 2-Aryl-3H-indol-3-ones via Cooperative Catalysis of Copper/Chiral Phosphoric Acid. Chem Asian J 2023; 18:e202300526. [PMID: 37530657 DOI: 10.1002/asia.202300526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/31/2023] [Accepted: 08/02/2023] [Indexed: 08/03/2023]
Abstract
A facile enantioselective alkynylation of cyclic ketimines attached to a neutral functional group utilizing the dual Cu(I)-CPA catalysis is described. The strategy of the alkynylation of 2-aryl-3H-indol-3-one directly to chiral propargylic amines containing indolin-3-one moiety in good yields and enantioselectivities. Moreover, gram-scale synthesis of chiral propargylamines based C2-quaternary indolin-3-ones was performed. The synthetic applications were confirmed by transformations of the products with no decrease in the yield and enantioselectivity.
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Affiliation(s)
- Xi-Xi Wu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Tao Ma
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Xiu-Xiu Qiao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Chang-Peng Zou
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Ganpeng Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Yonghui He
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Xiao-Jing Zhao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission & Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
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2
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Reyes E, Prieto L, Uria U, Carrillo L, Vicario JL. Recent Advances in the Prins Reaction. ACS OMEGA 2022; 7:31621-31627. [PMID: 36120064 PMCID: PMC9476534 DOI: 10.1021/acsomega.2c04765] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
The Prins reaction is a very convenient synthetic platform for the preparation of oxygen-containing heterocyclic compounds, especially tetrahydropyrans and tetrahydrofurans. While this reaction has been extensively used by synthetic chemists since its discovery, the last years have witnessed impressive improvements in its performance and scope and especially in the development of new catalytic and enantioselective versions. This mini-review presents these recent advances through selected representative examples.
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Affiliation(s)
- Efraim Reyes
- Department
of Organic and Inorganic Chemistry, University
of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | | | | | | | - Jose L. Vicario
- Department
of Organic and Inorganic Chemistry, University
of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
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3
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Wu Z, Krishnamurthy S, Tummalapalli KSS, Antilla JC. Chiral Calcium Phosphate-Catalyzed Enantioselective Amination of 3-Aryl-2-oxindoles with Dibenzyl Azodicarboxylate. J Org Chem 2022; 87:8203-8212. [PMID: 35621216 DOI: 10.1021/acs.joc.2c00432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A chiral calcium phosphate-catalyzed enantioselective amination of 2-oxindoles with dibenzyl azodicarboxylate has been developed, affording the products in consistently high yields and excellent enantioselectivity. This synthetic method features low catalyst loading and a high catalytic efficiency. Moreover, the practical value of this process is well demonstrated by a scale-up experiment and a trial of catalyst recovery and reuse.
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Affiliation(s)
- Zhenwei Wu
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Suvratha Krishnamurthy
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - K S Satyanarayana Tummalapalli
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Jon C Antilla
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China.,School of Science, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, P. R. China
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4
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Budakoti A, Mondal PK, Verma P, Khamrai J. Prins cyclization-mediated stereoselective synthesis of tetrahydropyrans and dihydropyrans: an inspection of twenty years. Beilstein J Org Chem 2021; 17:932-963. [PMID: 33981366 PMCID: PMC8093554 DOI: 10.3762/bjoc.17.77] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 04/14/2021] [Indexed: 11/25/2022] Open
Abstract
Functionalized tetrahydropyran (THP) rings are important building blocks and ubiquitous scaffolds in many natural products and active pharmaceutical ingredients (API). Among various established methods, the Prins reaction has emerged as a powerful technique in the stereoselective synthesis of the tetrahydropyran skeleton with various substituents, and the strategy has further been successfully applied in the total synthesis of bioactive macrocycles and related natural products. In this context, hundreds of valuable contributions have already been made in this area, and the present review is intended to provide the systematic assortment of diverse Prins cyclization strategies, covering the literature reports of the last twenty years (from 2000 to 2019), with an aim to give an overview on exciting advancements in this area and designing new strategies for the total synthesis of related natural products.
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Affiliation(s)
- Asha Budakoti
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research (CBMR), SGPGIMS Campus Raebareli Road, Lucknow, 226014 Uttar Pradesh, India
| | - Pradip Kumar Mondal
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research (CBMR), SGPGIMS Campus Raebareli Road, Lucknow, 226014 Uttar Pradesh, India
| | - Prachi Verma
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research (CBMR), SGPGIMS Campus Raebareli Road, Lucknow, 226014 Uttar Pradesh, India
| | - Jagadish Khamrai
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research (CBMR), SGPGIMS Campus Raebareli Road, Lucknow, 226014 Uttar Pradesh, India
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5
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Takagi R, Sakai Y, Duong DT. Bis(trifluoromethanesulfonimide) (BSI): Acidity and application to hydrofunctionalization as a Brønsted acid catalyst. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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6
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Mittapalli RR, Coles SJ, Klooster WT, Dobbs AP. A Stereoselective aza-Prins Reaction: Rapid Access to Enantiopure Piperidines and Pipecolic Acids. J Org Chem 2021; 86:2076-2089. [PMID: 33417453 DOI: 10.1021/acs.joc.0c01897] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The aza-Prins reaction is a widely employed and highly efficient method for the preparation of saturated nitrogen-containing heterocycles. Its major drawback has always been a lack of diastereoselectivity and the formation of racemic products. Herein, we address these problems and report, for the first time, the synthesis of both diastereomerically and enantiopure multiply substituted piperidines via the aza-Prins reaction. This method is widely applicable for natural product synthesis and is exemplified here by the synthesis of enantiopure pipecolic acid derivatives.
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Affiliation(s)
| | - Simon J Coles
- UK National Crystallography Service, University of Southampton, University Road, Southampton SO17 1BJ, United Kingdom
| | - Wim T Klooster
- UK National Crystallography Service, University of Southampton, University Road, Southampton SO17 1BJ, United Kingdom
| | - Adrian P Dobbs
- School of Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, United Kingdom
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7
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Satteyyanaidu V, Chandrashekhar R, Reddy BVS, Lalli C. Modulating Prins Cyclization
versus
Tandem Prins Processes for the Synthesis of Hexahydro‐1
H
‐pyrano[3,4‐
c
]chromenes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Vallabhareddy Satteyyanaidu
- Fluoro & Agrochemicals CSIR-Indian Institute of Chemical Technology Hyderabad 500 007
- Academy of Scientific and Innovative Research (AcSIR) New Delhi 110025 India
| | - Rapelli Chandrashekhar
- Fluoro & Agrochemicals CSIR-Indian Institute of Chemical Technology Hyderabad 500 007
- Academy of Scientific and Innovative Research (AcSIR) New Delhi 110025 India
| | - B. V. Subba Reddy
- Fluoro & Agrochemicals CSIR-Indian Institute of Chemical Technology Hyderabad 500 007
- Academy of Scientific and Innovative Research (AcSIR) New Delhi 110025 India
| | - Claudia Lalli
- CNRS ISCR – UMR 6226 Univ Rennes 35000 Rennes France
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8
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Padmaja P, Reddy PN, Subba Reddy BV. Tandem Prins cyclizations for the construction of oxygen containing heterocycles. Org Biomol Chem 2020; 18:7514-7532. [PMID: 32940271 DOI: 10.1039/d0ob00960a] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Tandem Prins cyclization is a versatile method for the synthesis of fused/bridged/spirotetrahydropyran scaffolds. Therefore, it has become a powerful tool for the stereoselective synthesis of oxygen/nitrogen containing heterocycles. Indeed, previous review articles on Prins spirocyclization illustrate the synthesis of spirotetrahydropyran derivatives and the aza-Prins reaction demonstrates its application in the total synthesis of natural products. The current review is devoted specifically to highlight tandem Prins cyclizations for the construction of fused scaffolds and related frameworks with a particular emphasis on recent applications. The mechanistic aspects and the scope of the methods are briefly discussed herein.
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Affiliation(s)
- P Padmaja
- Fluoro & Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.
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9
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Braire J, Dorcet V, Vidal J, Lalli C, Carreaux F. BINOL derivatives-catalysed enantioselective allylboration of isatins: application to the synthesis of (R)-chimonamidine. Org Biomol Chem 2020; 18:6042-6046. [PMID: 32729604 DOI: 10.1039/d0ob01386b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The asymmetric synthesis of the 3-allyl-3-hydroxyoxindole skeleton was accomplished in yields up to 99% via a metal-free and enantioselective allylation of isatins (90-96% ee) using BINOL derivatives as catalysts and an optimized allylboronate. This methodology was applied at a gram-scale to the synthesis of the natural product (R)-chimonamidine.
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Affiliation(s)
- Julien Braire
- Univ Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France.
| | - Vincent Dorcet
- Univ Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France.
| | - Joëlle Vidal
- Univ Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France.
| | - Claudia Lalli
- Univ Rennes, CNRS, ISCR - UMR 6226, F-35000 Rennes, France.
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10
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Maskeri MA, Brueckner AC, Feoktistova T, O'Connor MJ, Walden DM, Cheong PHY, Scheidt KA. Mechanism and origins of selectivity in the enantioselective oxa-Pictet-Spengler reaction: a cooperative catalytic complex from a hydrogen bond donor and chiral phosphoric acid. Chem Sci 2020; 11:8736-8743. [PMID: 34123127 PMCID: PMC8163393 DOI: 10.1039/d0sc03250f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 07/21/2020] [Indexed: 11/29/2022] Open
Abstract
Enantioselective additions to oxocarbenium ions are high-value synthetic transformations but have proven challenging to achieve. In particular, the oxa-Pictet-Spengler reaction has only recently been rendered enantioselective. We report experimental and computational studies on the mechanism of this unusual transformation. Herein we reveal that this reaction is hypothesized to proceed through a self-assembled ternary hydrogen bonding complex involving the substrate, chiral phosphate ion, and a urea hydrogen-bond donor. The computed transition state reveals C2-symmetric grooves in the chiral phosphate that are occupied by the urea and substrate. Occupation of one of these grooves by the urea co-catalyst tunes the available reactive volume and enhances the stereoselectivity of the chiral phosphate catalyst.
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Affiliation(s)
- Mark A Maskeri
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Northwestern University Evanston IL 60208 USA
| | | | | | - Matthew J O'Connor
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Northwestern University Evanston IL 60208 USA
| | - Daniel M Walden
- Department of Chemistry, Oregon State University Corvallis OR 97331 USA
| | | | - Karl A Scheidt
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Northwestern University Evanston IL 60208 USA
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11
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Li Y, Liu J, Chen X, Zhou Y, Xiao Y, Chen F. Asymmetric Alkynylation of Cyclic
N
‐Sulfonyl Imines using Synergistic Chiral Phosphoric Acid/Copper Catalysis. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000504] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Ya‐Ling Li
- Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - Jin‐Xin Liu
- Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - Xiao‐Pan Chen
- Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - Yuan Zhou
- Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - You‐Cai Xiao
- Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - Fen‐Er Chen
- Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan University Chengdu 610041 People's Republic of China
- Engineering Center of Catalysis and Synthesis for Chiral MoleculesDepartment of ChemistryFudan University Shanghai 200433 People's Republic of China
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs Shanghai 200433 People's Republic of China
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12
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Sun HR, Zhao Q, Yang H, Yang S, Gou BB, Chen J, Zhou L. Chiral Phosphoric-Acid-Catalyzed Cascade Prins Cyclization. Org Lett 2019; 21:7143-7148. [PMID: 31414820 DOI: 10.1021/acs.orglett.9b02714] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Asymmetric Prins cyclization of in situ generated quinone methides and o-aminobenzaldehyde has been developed with chiral phosphoric acid as an efficient catalyst. This unconventional method provides a facile access to diverse functionalized trans-fused pyrano-/furo-tetrahydroquinoline derivatives in excellent yield and with excellent diastereo- and enantioselectivities (up to 99% yield and 99% ee). Mechanistic studies suggested that the three adjacent tertiary stereocenters were constructed through the sequential formation of C-O, C-C, and C-N bonds.
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Affiliation(s)
- Huai-Ri Sun
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China
| | - Qingyang Zhao
- School of Pharmaceutical Sciences (Shenzhen) , Sun Yat-sen University , Shenzhen 518107 , P. R. China
| | - Hui Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China
| | - Sen Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China
| | - Bo-Bo Gou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education , Northwest University , Xi'an 710127 , P. R. China
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13
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Recent Advances in First-Row Transition Metal/Chiral Phosphoric Acid Combined Catalysis. Top Curr Chem (Cham) 2019; 377:23. [PMID: 31463700 DOI: 10.1007/s41061-019-0249-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 08/16/2019] [Indexed: 01/15/2023]
Abstract
Since the pioneering independent reports of Akiyama and Terada, the use of chiral phosphoric acids (CPAs) and derivatives as a versatile tool for asymmetric synthesis with good reactivity, regioselectivity, diastereoselectivity and enantioselectivity has emerged, forming an important part of the implementation of asymmetric counteranion-directed catalysis reported to date. In these achievements, the combination of metals with CPAs has enabled various catalytic modes beyond the scope of typical acid catalysis, such as relay catalysis, ion-pairing catalysis, and binary acid catalysis. The first-row transition metals (Sc-Zn) are considered to be sustainable transition metals and have received a great deal of attention. These naturally abundant metals display excellent Lewis acidity and function as powerful redox catalysts in synthesis involving both one and two-electron transfers. Hence, in this chapter, we summarize recent advances in the development of asymmetric reactions using a combination of first-row transition metals and CPAs. Furthermore, we provide a detailed discussion of the mechanisms involved in order to understand the interaction of the metal/phosphate and the origins of the asymmetric control of the transformations.
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14
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Affiliation(s)
- Lucas Schreyer
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - Roberta Properzi
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
| | - Benjamin List
- Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Deutschland
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15
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Abstract
High acidity and structural confinement are pivotal elements in asymmetric acid catalysis. The recently introduced imidodiphosphorimidate (IDPi) Brønsted acids have met with remarkable success in combining those features, acting as powerful Brønsted acid catalysts and "silylium" Lewis acid precatalysts in numerous thus far inaccessible transformations. Substrates as challenging to activate as simple olefins were readily transformed, ketones were employed as acceptors in aldolizations allowing sub-ppm level catalysis, whereas enolates of the smallest donor aldehyde, acetaldehyde, did not polymerize but selectively added a single time to a variety of acceptor aldehydes.
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Affiliation(s)
- Lucas Schreyer
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Roberta Properzi
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Benjamin List
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
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16
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Sahani RL, Liu RS. Gold-Catalyzed Oxidative Arylations of 3-Butyn-1-ols and 2-Propyn-1-ols with Nitrones to Yield Distinct Fused Indoles Bearing a Heterocyclic Ring. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01491] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Rajkumar Lalji Sahani
- Frontier Research Center on Fundamental and Applied Science of Matters, Department of Chemistry, National Tsing-Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu-30013, Taiwan, ROC
| | - Rai-Shung Liu
- Frontier Research Center on Fundamental and Applied Science of Matters, Department of Chemistry, National Tsing-Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu-30013, Taiwan, ROC
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17
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Cheng MJ, Yang XY, Cao JQ, Liu C, Zhong LP, Wang Y, You XF, Li CC, Wang L, Ye WC. Isolation, Structure Elucidation, and Total Synthesis of Myrtuspirone A from Myrtus communis. Org Lett 2019; 21:1583-1587. [PMID: 30799624 DOI: 10.1021/acs.orglett.9b00108] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A pair of enantiomeric triketone-phloroglucinol hybrids, (+)- and (-)-myrtuspirone A (1), featuring an unprecedented 3-isopropyl-3 H-spiro[benzofuran-2,1'-cyclohexane] backbone, were isolated from the leaves of Myrtus communis. The absolute configuration of each enantiomer of 1 was determined by X-ray diffraction and chemical calculations. Furthermore, the gram-scale total syntheses of (±)-1 and (-)-1 were conducted in four steps using a Michael- N-iodosuccinimide (NIS)-mediated (3 + 2)-annulation reaction. Both (+)- and (-)-1 exhibited antibacterial activities against Gram-positive bacteria including multidrug-resistant strains.
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Affiliation(s)
- Min-Jing Cheng
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen 518055 , P.R. China.,Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy , Jinan University , Guangzhou 510632 , P.R. China
| | - Xin-Yi Yang
- Beijing Key Laboratory of Antimicrobial Agents/Laboratory of Pharmacology, Institute of Medicinal Biotechnology , Chinese Academy of Medical Sciences/Peking Union Medical College , Beijing 100050 , P.R. China
| | - Jia-Qing Cao
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy , Jinan University , Guangzhou 510632 , P.R. China
| | - Chao Liu
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy , Jinan University , Guangzhou 510632 , P.R. China
| | - Li-Ping Zhong
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen 518055 , P.R. China
| | - Ying Wang
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy , Jinan University , Guangzhou 510632 , P.R. China
| | - Xue-Fu You
- Beijing Key Laboratory of Antimicrobial Agents/Laboratory of Pharmacology, Institute of Medicinal Biotechnology , Chinese Academy of Medical Sciences/Peking Union Medical College , Beijing 100050 , P.R. China
| | - Chuang-Chuang Li
- Department of Chemistry and Shenzhen Grubbs Institute , Southern University of Science and Technology , Shenzhen 518055 , P.R. China
| | - Lei Wang
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy , Jinan University , Guangzhou 510632 , P.R. China
| | - Wen-Cai Ye
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, College of Pharmacy , Jinan University , Guangzhou 510632 , P.R. China
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18
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Hollow organic polymeric nano-bowls-supported BINOL-derived chiral phosphoric acid: enhanced catalytic performances in the enantioselective allylation of aromatic aldehydes. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2018.12.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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19
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Subba Reddy BV, Nair PN, Antony A, Srivastava N. Recent Advances in Prins Spirocyclization. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700633] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- B. V. Subba Reddy
- Centre for Semio Chemicals; CSIR - Indian Institute of Chemical Technology; Hyderabad India
| | - Preethi Narayanan Nair
- Centre for Semio Chemicals; CSIR - Indian Institute of Chemical Technology; Hyderabad India
| | - Aneesh Antony
- Centre for Semio Chemicals; CSIR - Indian Institute of Chemical Technology; Hyderabad India
| | - Nikhil Srivastava
- Centre for Semio Chemicals; CSIR - Indian Institute of Chemical Technology; Hyderabad India
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20
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Scoccia J, Pérez SJ, Sinka V, Cruz DA, López-Soria JM, Fernández I, Martín VS, Miranda PO, Padrón JI. Direct Access to 2,3,4,6-Tetrasubstituted Tetrahydro-2H-pyrans via Tandem SN2′–Prins Cyclization. Org Lett 2017; 19:4834-4837. [DOI: 10.1021/acs.orglett.7b02270] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jimena Scoccia
- Departamento
de Química, Universidad Nacional del Sur, Av Alem 1253, 800 Bahía Blanca, Argentina
- INQUISUR, CONICET, Av Alem 1253, 800 Bahía Blanca, Argentina
| | - Sixto J. Pérez
- Instituto
Universitario de Bio-Orgánica “Antonio González”
(CIBICAN), “Síntesis Orgánica Sostenible, Unidad
Asociada al CSIC”, Departamento de Química Orgánica, Universidad de La Laguna, Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - Victoria Sinka
- Instituto de Productos Naturales y Agrobiología, CSIC, Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
| | - Daniel A. Cruz
- Instituto
Universitario de Bio-Orgánica “Antonio González”
(CIBICAN), “Síntesis Orgánica Sostenible, Unidad
Asociada al CSIC”, Departamento de Química Orgánica, Universidad de La Laguna, Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - Juan M. López-Soria
- Instituto de Productos Naturales y Agrobiología, CSIC, Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
| | - Israel Fernández
- Departamento
de Química Orgánica I, Facultad de Ciencias Químicas, Centro de Innovación en Química Avanzada (ORFEO−CINQA), Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Víctor S. Martín
- Instituto
Universitario de Bio-Orgánica “Antonio González”
(CIBICAN), “Síntesis Orgánica Sostenible, Unidad
Asociada al CSIC”, Departamento de Química Orgánica, Universidad de La Laguna, Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - Pedro O. Miranda
- Instituto de Productos Naturales y Agrobiología, CSIC, Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
| | - Juan I. Padrón
- Instituto de Productos Naturales y Agrobiología, CSIC, Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
- Instituto
Universitario de Bio-Orgánica “Antonio González”
(CIBICAN), “Síntesis Orgánica Sostenible, Unidad
Asociada al CSIC”, Departamento de Química Orgánica, Universidad de La Laguna, Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
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21
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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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22
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Subba Reddy BV, Nair PN, Antony A, Lalli C, Grée R. The Aza-Prins Reaction in the Synthesis of Natural Products and Analogues. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601411] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- B. V. Subba Reddy
- Centre for Semio Chemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad India
| | - Preethi Narayanan Nair
- Centre for Semio Chemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad India
| | - Aneesh Antony
- Centre for Semio Chemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad India
| | - Claudia Lalli
- Université de Rennes 1; Institut des Sciences Chimiques de Rennes, CNRS UMR 6226; Avenue du Pr. Léon Bernard 35043 Rennes-Cedex France
| | - René Grée
- Université de Rennes 1; Institut des Sciences Chimiques de Rennes, CNRS UMR 6226; Avenue du General Leclerc 35042 Rennes-Cedex France
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23
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Varela I, Faustino H, Díez E, Iglesias-Sigüenza J, Grande-Carmona F, Fernández R, Lassaletta JM, Mascareñas JL, López F. Gold(I)-Catalyzed Enantioselective [2+2+2] Cycloadditions: An Expedient Entry to Enantioenriched Tetrahydropyran Scaffolds. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03651] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Iván Varela
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Hélio Faustino
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Elena Díez
- Departamento de
Química Orgánica, C/Prof.
García González, 1, 41012 Sevilla, Spain
| | | | | | - Rosario Fernández
- Departamento de
Química Orgánica, C/Prof.
García González, 1, 41012 Sevilla, Spain
| | - José M. Lassaletta
- Instituto
Investigaciones Químicas, CSIC-USe, Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - José L. Mascareñas
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Fernando López
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS) and Departamento de Química
Orgánica, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Instituto
de Química Orgánica General, CSIC, Juan de la Cierva
3, 28006 Madrid, Spain
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24
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Lee S, Kaib PSJ, List B. Asymmetric Catalysis via Cyclic, Aliphatic Oxocarbenium Ions. J Am Chem Soc 2017; 139:2156-2159. [PMID: 28169541 DOI: 10.1021/jacs.6b11993] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A direct enantioselective synthesis of substituted oxygen heterocycles from lactol acetates and enolsilanes has been realized using a highly reactive and confined imidodiphosphorimidate (IDPi) catalyst. Various chiral oxygen heterocycles, including tetrahydrofurans, tetrahydropyrans, oxepanes, chromans, and dihydrobenzofurans, were obtained in excellent enantioselectivities by reacting the corresponding lactol acetates with diverse enol silanes. Mechanistic studies suggest the reaction to proceed via a nonstabilized, aliphatic, cyclic oxocarbenium ion intermediate paired with the confined chiral counteranion.
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Affiliation(s)
- Sunggi Lee
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Philip S J Kaib
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Benjamin List
- Max-Planck-Institut für Kohlenforschung , Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
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25
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Xie Y, Cheng GJ, Lee S, Kaib PSJ, Thiel W, List B. Catalytic Asymmetric Vinylogous Prins Cyclization: A Highly Diastereo- and Enantioselective Entry to Tetrahydrofurans. J Am Chem Soc 2016; 138:14538-14541. [DOI: 10.1021/jacs.6b09129] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Youwei Xie
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, 45470 Mülheim
an der Ruhr, Germany
| | - Gui-Juan Cheng
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, 45470 Mülheim
an der Ruhr, Germany
| | - Sunggi Lee
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, 45470 Mülheim
an der Ruhr, Germany
| | - Philip S. J. Kaib
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, 45470 Mülheim
an der Ruhr, Germany
| | - Walter Thiel
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, 45470 Mülheim
an der Ruhr, Germany
| | - Benjamin List
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz
1, 45470 Mülheim
an der Ruhr, Germany
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26
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Borthakur U, Borah M, Deka MJ, Saikia AK. Synthesis of Tetrahydro-1H-indeno[1,2-b]pyridine via Cascade Cyclization and Friedel–Crafts Reaction. J Org Chem 2016; 81:8736-8743. [DOI: 10.1021/acs.joc.6b00988] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Upasana Borthakur
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Madhurjya Borah
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Manash J. Deka
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anil K. Saikia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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27
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28
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Liu L, Kaib PSJ, Tap A, List B. A General Catalytic Asymmetric Prins Cyclization. J Am Chem Soc 2016; 138:10822-5. [DOI: 10.1021/jacs.6b07240] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Luping Liu
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Philip S. J. Kaib
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Aurélien Tap
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Benjamin List
- Max-Planck-Institut für Kohlenforschung, Kaiser
Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
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29
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Zhao C, Chen SB, Seidel D. Direct Formation of Oxocarbenium Ions under Weakly Acidic Conditions: Catalytic Enantioselective Oxa-Pictet–Spengler Reactions. J Am Chem Soc 2016; 138:9053-6. [DOI: 10.1021/jacs.6b05225] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Chenfei Zhao
- Department
of Chemistry and
Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Shawn B. Chen
- Department
of Chemistry and
Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
| | - Daniel Seidel
- Department
of Chemistry and
Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854, United States
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30
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Lin W, Cheng J, Ma S. Iron(III) Chloride-Catalyzed Tandem Aza-Prins/Friedel-Crafts Cyclization of 2-Arylethyl-2,3-butadienyl Tosylamides and Aldehydes-An Efficient Synthesis of Benzo[f]isoquinolines. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600107] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Vandavasi JK, Hu WP, Boominathan SSK, Guo BC, Hsiao CT, Wang JJ. Au(I)-catalyzed synthesis of 8-oxabicyclo[3.2.1]oct-2-enes and 9-oxabicyclo[3.3.1]nona-2,6-dienes from enynol via oxonium/Prins-type cyclization. Chem Commun (Camb) 2016; 51:12435-8. [PMID: 26145989 DOI: 10.1039/c5cc02847g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A sustainable and simple Au(I) catalytic system to synthesise 8-oxabicyclo[3.2.1]oct-2-enes and 9-oxabicyclo[3.3.1]nona-2,6-dienes from enynol via oxonium/Prins-type cyclization is described. The key advantages of this reaction are selectivity, good functional group tolerance and a new approach for synthesis of oxabicyclic and oxatricyclic systems.
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Affiliation(s)
- Jaya Kishore Vandavasi
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan.
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32
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Liu J, Zhou L, Wang C, Liang D, Li Z, Zou Y, Wang Q, Goeke A. Catalytic Asymmetric Prins Bicyclization for theendo-Selective Formation of 2,6-dioxabicyclo[2.2.2]octanes. Chemistry 2016; 22:6258-61. [DOI: 10.1002/chem.201600847] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Jie Liu
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P. R. China
- Givaudan Fragrances (Shanghai) Ltd.; 298 Li Shi Zhen Road Shanghai 201203 P. R. China), Fax
| | - Lijun Zhou
- Givaudan Fragrances (Shanghai) Ltd.; 298 Li Shi Zhen Road Shanghai 201203 P. R. China), Fax
| | - Chao Wang
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P. R. China
| | - Demin Liang
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P. R. China
| | - Zhiming Li
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P. R. China
| | - Yue Zou
- Givaudan Fragrances (Shanghai) Ltd.; 298 Li Shi Zhen Road Shanghai 201203 P. R. China), Fax
| | - Quanrui Wang
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 P. R. China
| | - Andreas Goeke
- Givaudan Fragrances (Shanghai) Ltd.; 298 Li Shi Zhen Road Shanghai 201203 P. R. China), Fax
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33
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Durel V, Lalli C, Roisnel T, Weghe PVD. Synergistic Effect of the TiCl4/p-TsOH Promoter System on the Aza-Prins Cyclization. J Org Chem 2016; 81:849-59. [DOI: 10.1021/acs.joc.5b02342] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vianney Durel
- Université de Rennes 1, UMR CNRS 6226, Institut des Sciences
Chimiques de Rennes, Equipe PNSCM, UFR des Sciences Biologiques et
Pharmaceutiques, 2 avenue
du Prof Léon Bernard, Rennes F-35043 Cedex, France
| | - Claudia Lalli
- Université de Rennes 1, UMR CNRS 6226, Institut des Sciences
Chimiques de Rennes, Equipe PNSCM, UFR des Sciences Biologiques et
Pharmaceutiques, 2 avenue
du Prof Léon Bernard, Rennes F-35043 Cedex, France
| | - Thierry Roisnel
- Université de Rennes 1, UMR CNRS 6226, Institut des Sciences
Chimiques de Rennes, Equipe PNSCM, UFR des Sciences Biologiques et
Pharmaceutiques, 2 avenue
du Prof Léon Bernard, Rennes F-35043 Cedex, France
| | - Pierre van de Weghe
- Université de Rennes 1, UMR CNRS 6226, Institut des Sciences
Chimiques de Rennes, Equipe PNSCM, UFR des Sciences Biologiques et
Pharmaceutiques, 2 avenue
du Prof Léon Bernard, Rennes F-35043 Cedex, France
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34
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Reddy BVS, Reddy GN, Reddy MR, Lakshmi JK, Jagadeesh B, Sridhar B. Prins-Driven Friedel-Crafts Reaction for the Stereoselective Synthesis of Hexahydroindeno[2,1-c]pyran Derivatives. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500218] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- B. V. Subba Reddy
- Natural Product Chemistry; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad- 500 607 India), Fax: (+91) 40-27160512
| | - G. Niranjan Reddy
- Natural Product Chemistry; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad- 500 607 India), Fax: (+91) 40-27160512
| | - M. Ramana Reddy
- Natural Product Chemistry; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad- 500 607 India), Fax: (+91) 40-27160512
| | - J. K. Lakshmi
- Centre for Nuclear Magnetic Resonance and Structural Chemistry; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad- 500 607 India
| | - B. Jagadeesh
- Centre for Nuclear Magnetic Resonance and Structural Chemistry; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad- 500 607 India
| | - B. Sridhar
- Laboratory of Crystallography; CSIR-Indian Institute of Chemical Technology, Tarnaka; Hyderabad- 500 607 India
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35
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Tsui GC, Liu L, List B. Die organokatalytische asymmetrische Prins-Cyclisierung. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500219] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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36
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Tsui GC, Liu L, List B. The Organocatalytic Asymmetric Prins Cyclization. Angew Chem Int Ed Engl 2015; 54:7703-6. [DOI: 10.1002/anie.201500219] [Citation(s) in RCA: 130] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 03/25/2015] [Indexed: 01/25/2023]
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37
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38
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Parmar D, Sugiono E, Raja S, Rueping M. 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 2014; 114:9047-153. [PMID: 25203602 DOI: 10.1021/cr5001496] [Citation(s) in RCA: 1495] [Impact Index Per Article: 149.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Dixit Parmar
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany
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