1
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Li X, Liu WX, Wang CC, Wei JX, Wu YQ, Xiao ZY, Li K, Li YX, Li LZ. Catalytic Asymmetric Diels-Alder Reaction of 2'-Hydroxychalcone as a Dienophile with a VANOL-Borate Ester Complex. ACS OMEGA 2023; 8:11588-11595. [PMID: 37008159 PMCID: PMC10061623 DOI: 10.1021/acsomega.3c00782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 02/23/2023] [Indexed: 06/19/2023]
Abstract
Numerous flavonoid Diels-Alder-type natural products have been isolated and received great attention from the synthetic community. Herein, we reported a catalytic strategy for an asymmetric Diels-Alder reaction of 2'-hydroxychalcone with a range of diene substrates using a chiral ligand-boron Lewis acid complex. This method enables the convenient synthesis of a wide range of cyclohexene skeletons in excellent yields with moderate to good enantioselectivities, which is critical to prepare natural product congeners for further biological studies.
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Affiliation(s)
- Xia Li
- Department
of Pharmacy, Logistics University of People’s
Armed Police Forces, Tianjin Key Laboratory for Prevention and Control
of Occupational and Environmental Hazard, Tianjin 300309, China
| | - Wen-Xiang Liu
- Department
of Pharmacy, Logistics University of People’s
Armed Police Forces, Tianjin 300309, China
| | - Cong-Cong Wang
- Department
of Health Services, Logistics University
of People’s Armed Police Forces, Tianjin 300309, China
| | - Jin-Xia Wei
- School
of Chinese Materia Medica, Tianjin University
of Traditional Chinese Medicine, Tianjin 3001617, China
| | - Yu-Qiang Wu
- Health
Team of Chaoyang Detachment of Liaoning People’s Armed Police
Corps, Chaoyang 122000, Liaoning, China
| | - Ze-Yun Xiao
- Department
of Pharmacy, Logistics University of People’s
Armed Police Forces, Tianjin 300309, China
| | - Kai Li
- Vocational
Education Center, Logistics University of
People’s Armed Police Forces, Tianjin 300309, China
| | - Ya-Xiao Li
- Department
of Pharmacy, Logistics University of People’s
Armed Police Forces, Tianjin Key Laboratory for Prevention and Control
of Occupational and Environmental Hazard, Tianjin 300309, China
| | - Ling-Zhi Li
- Department
of Pharmacy, Logistics University of People’s
Armed Police Forces, Tianjin 300309, China
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2
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Georgieva MK, Santos AG. Theoretical Study on Chiral Boron Complex‐Promoted Asymmetric Diels‐Alder Cycloadditions. European J Org Chem 2022. [DOI: 10.1002/ejoc.202201082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- Miglena K. Georgieva
- LAQV-REQUIMTE, Department of Chemistry NOVA School of Science and Technology Universidade Nova de Lisboa 2829-516 Caparica Portugal
| | - A. Gil Santos
- LAQV-REQUIMTE, Department of Chemistry NOVA School of Science and Technology Universidade Nova de Lisboa 2829-516 Caparica Portugal
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3
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Tortora C, Pisano L, Vergine V, Ghirga F, Iazzetti A, Calcaterra A, Marković V, Botta B, Quaglio D. Synthesis, Biosynthesis, and Biological Activity of Diels-Alder Adducts from Morus Genus: An Update. Molecules 2022; 27:7580. [PMID: 36364405 PMCID: PMC9657834 DOI: 10.3390/molecules27217580] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 11/28/2023] Open
Abstract
The plants of the Moraceae family are producers of a great variety of polyphenolic natural products. Among these, the Diels-Alder type adducts (DAAs) are endowed with a unique cyclohexene scaffold, since they are biosynthesized from [4+2] cycloaddition of different polyphenolic precursors such as chalcones and dehydroprenyl polyphenols. To date, more than 150 DAAs have been isolated and characterized from Moraceous and related plants. The main source of DAAs is the mulberry root bark, also known as "Sang-Bai-Pi" in Traditional Chinese Medicine, but they have also been isolated from root bark, stem barks, roots, stems or twigs, leaves, and callus cultures of Moraceous and other related plants. Since 1980, many biological activities of DAAs have been identified, including anti-HIV, antimicrobial, anti-inflammatory, and anticancer ones. For these reasons, natural DAAs have been intensively investigated, and a lot of efforts have been made to study their biosynthesis and to establish practical synthetic access. In this review, we summarized all the updated knowledge on biosynthesis, chemoenzymatic synthesis, racemic and enantioselective total synthesis, and biological activity of natural DAAs from Moraceous and related plants.
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Affiliation(s)
- Carola Tortora
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Luca Pisano
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Valeria Vergine
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Francesca Ghirga
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Antonia Iazzetti
- Dipartimento di Scienze Biotecnologiche di Base Cliniche Intensivologiche e Perioperatorie, Campus di Roma, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168 Rome, Italy
| | - Andrea Calcaterra
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Violeta Marković
- Department of Chemistry, Faculty of Science, University of Kragujevac, R. Domanovića 12, 34000 Kragujevac, Serbia
| | - Bruno Botta
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Deborah Quaglio
- Department of Chemistry and Technology of Drugs, Department of Excellence 2018–2022, Sapienza—University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy
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4
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Mastachi-Loza S, Ramírez-Candelero TI, Benítez-Puebla LJ, Fuentes-Benítes A, González-Romero C, Vázquez MA. Chalcones, a Privileged Scaffold: Highly Versatile Molecules in [4+2] Cycloadditions. Chem Asian J 2022; 17:e202200706. [PMID: 35976743 DOI: 10.1002/asia.202200706] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/14/2022] [Indexed: 11/09/2022]
Abstract
Chalcones are aromatic ketones found in nature as the central core of many biological compounds. They have a wide range of biological activity and are biogenetic precursors of other important molecules such as flavonoids. Their pharmacological relevance makes them a privileged scaffold, advantageous for seeking alternative therapies in medicinal chemistry. Due to their structural diversity and ease of synthesis, they are often employed as building blocks for chemical transformations. Chalcones have a carbonyl conjugated system with two electrophilic centers that are commonly used for nucleophilic additions, as described in numerous articles. They can also participate in Diels-Alder reactions, which are [4+2] cycloadditions between a diene and a dienophile. This microreview presents a chronological survey of studies on chalcones as dienes and dienophiles in Diels-Alder cycloadditions. Although these reactions occur in nature, isolation of chalcones from plants yields very small quantities. Contrarily, synthesis leads to large quantities at a low cost. Hence, novel methodologies have been developed for [4+2] cycloadditions, with chalcones serving as a 2π or 4π electron system.
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Affiliation(s)
- Salvador Mastachi-Loza
- Universidad de Guanajuato Division de Ciencias Naturales y Exactas, Departamento de Química, MEXICO
| | - Tania I Ramírez-Candelero
- Universidad Autonoma del Estado de Mexico Facultad de Quimica, Departamento de Química Orgánica, MEXICO
| | - Luis J Benítez-Puebla
- Universidad de Guanajuato Division de Ciencias Naturales y Exactas, Departamento de Química, MEXICO
| | - Aydee Fuentes-Benítes
- Universidad Autonoma del Estado de Mexico Facultad de Quimica, Departamento de Química Orgánica, MEXICO
| | - Carlos González-Romero
- Universidad Autonoma del Estado de Mexico Facultad de Quimica, Departamento de Química Orgánica, MEXICO
| | - Miguel A Vázquez
- Universidad de Guanajuato Division de Ciencias Naturales y Exactas, CHEMISTRY, NORIA ALTA S/N, 36050, GUANAJUATO, MEXICO
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5
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Chai GL, Qiao Y, Zhang P, Guo R, Wang J, Chang J. Chiral Hydroxytetraphenylene-Boron Complex Catalyzed Asymmetric Diels-Alder Cycloaddition of 2'-Hydroxychalcones. Org Lett 2020; 22:8023-8027. [PMID: 32991185 DOI: 10.1021/acs.orglett.0c02978] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
(S)-2,15-Cl2-DHTP-boron complex catalyst for the asymmetric Diels-Alder cycloaddition of 2'-hydroxychalcones and dienes was developed and tested. The resulting cyclohexenes with three chiral centers were obtained in high yields (up to 98%) with excellent stereoselectivities (up to >20:1 endo/exo, >99% ee). This catalytic system features high efficiency, broad substrate scopes, and mild reaction conditions. In addition, a DFT study was performed to explain the stereochemical course of the asymmetric induction.
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Affiliation(s)
- Guo-Li Chai
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yan Qiao
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Ping Zhang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Rong Guo
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Juan Wang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecules and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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6
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Maurya V, Appayee C. Catalytic Asymmetric Synthesis of 3,4-Disubstituted Cyclohexadiene Carbaldehydes: Formal Total Synthesis of Cyclobakuchiols A and C. Org Lett 2018; 20:4111-4115. [PMID: 29916715 DOI: 10.1021/acs.orglett.8b01667] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first catalytic approach for the asymmetric synthesis of 3,4-disubstituted cyclohexadiene carbaldehydes through an inverse-electron-demand Diels-Alder reaction is described. A variety of arylacetaldehydes and α,β,γ,δ-unsaturated aldehydes are tested under the mild reaction conditions catalyzed by l-proline to obtain the trans diastereomeric products with good yields and high enantioselectivities. The scope of this methodology is further extended to the asymmetric synthesis 3,4-disubstituted cyclohexane carbaldehydes and their derivatives. The practicality of this method is demonstrated by the gram-scale synthesis. This methodology is successfully applied for the formal total synthesis of cyclobakuchiol A, an antipyretic and anti-inflammatory agent, and cyclobakuchiol C.
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Affiliation(s)
- Vidyasagar Maurya
- Discipline of Chemistry , Indian Institute of Technology Gandhinagar , Palaj, Gandhinagar , Gujarat 382355 , India
| | - Chandrakumar Appayee
- Discipline of Chemistry , Indian Institute of Technology Gandhinagar , Palaj, Gandhinagar , Gujarat 382355 , India
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7
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Tiamas SG, Audet F, Samra AA, Bignon J, Litaudon M, Fourneau C, Ariffin A, Awang K, Desrat S, Roussi F. Asymmetric Total Synthesis and Biological Evaluation of Proapoptotic Natural Myrcene-Derived Cyclohexenyl Chalcones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800262] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shelly Gapil Tiamas
- Institut de Chimie des Substances Naturelles (ICSN) UPR2301; CNRS; Université Paris-Saclay; Avenue de la Terrasse 91198 Gif-sur-Yvette CEDEX France
- Department of Chemistry; Faculty of Science; University of Malaya; 50603 Kuala Lumpur Malaysia
| | - Florian Audet
- Institut de Chimie des Substances Naturelles (ICSN) UPR2301; CNRS; Université Paris-Saclay; Avenue de la Terrasse 91198 Gif-sur-Yvette CEDEX France
| | - Alma Abou Samra
- Institut de Chimie des Substances Naturelles (ICSN) UPR2301; CNRS; Université Paris-Saclay; Avenue de la Terrasse 91198 Gif-sur-Yvette CEDEX France
| | - Jérome Bignon
- Institut de Chimie des Substances Naturelles (ICSN) UPR2301; CNRS; Université Paris-Saclay; Avenue de la Terrasse 91198 Gif-sur-Yvette CEDEX France
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles (ICSN) UPR2301; CNRS; Université Paris-Saclay; Avenue de la Terrasse 91198 Gif-sur-Yvette CEDEX France
| | - Christophe Fourneau
- BioCIS; Faculté de Pharmacie de Châtenay-Malabry; Université Paris-Saclay; 5 rue Jean-Baptiste Clément 92296 Châtenay-Malabry France
| | - Azhar Ariffin
- Department of Chemistry; Faculty of Science; University of Malaya; 50603 Kuala Lumpur Malaysia
| | - Khalijah Awang
- Department of Chemistry; Faculty of Science; University of Malaya; 50603 Kuala Lumpur Malaysia
| | - Sandy Desrat
- Institut de Chimie des Substances Naturelles (ICSN) UPR2301; CNRS; Université Paris-Saclay; Avenue de la Terrasse 91198 Gif-sur-Yvette CEDEX France
| | - Fanny Roussi
- Institut de Chimie des Substances Naturelles (ICSN) UPR2301; CNRS; Université Paris-Saclay; Avenue de la Terrasse 91198 Gif-sur-Yvette CEDEX France
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8
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Nasir SB, Tee JT, Rahman NA, Chee CF. Biosynthesis and Biomimetic Synthesis of Flavonoid Diels-Alder Natural Products. FLAVONOIDS - FROM BIOSYNTHESIS TO HUMAN HEALTH 2017. [DOI: 10.5772/intechopen.68781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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9
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Iovine V, Benni I, Sabia R, D'Acquarica I, Fabrizi G, Botta B, Calcaterra A. Total Synthesis of (±)-Kuwanol E. JOURNAL OF NATURAL PRODUCTS 2016; 79:2495-2503. [PMID: 27656763 DOI: 10.1021/acs.jnatprod.6b00350] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The total synthesis of the Diels-Alder-type adducts (±)-kuwanol E and the heptamethyl ether derivative of (±)-kuwanon Y has been accomplished via a convergent strategy involving 2'-hydroxychalcone 6 or 9 and dehydroprenylstilbene 7, in nine steps. The synthesis features, as a key step, a Lewis acid-mediated biomimetic intermolecular Diels-Alder [4+2] cycloaddition for the construction of the cyclohexene skeleton with three stereogenic centers. Notably, the endo/exo diastereoselectivity of the reaction proved to be temperature-controlled.
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Affiliation(s)
- Valentina Iovine
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia , Viale Regina Elena 291, 00161 Roma, Italy
| | - Irene Benni
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
| | - Rocchina Sabia
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
| | - Ilaria D'Acquarica
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
| | - Giancarlo Fabrizi
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
| | - Bruno Botta
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia , Viale Regina Elena 291, 00161 Roma, Italy
| | - Andrea Calcaterra
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma , p.le Aldo Moro 5, 00185 Roma, Italy
- Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia , Viale Regina Elena 291, 00161 Roma, Italy
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10
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Iriarte I, Vera S, Badiola E, Mielgo A, Oiarbide M, García JM, Odriozola JM, Palomo C. Asymmetric Assembly of All-Carbon Tertiary/Quaternary Nonadjacent Stereocenters through Organocatalytic Conjugate Addition of α-Cyanoacetates to a Methacrylate Equivalent. Chemistry 2016; 22:13690-6. [DOI: 10.1002/chem.201603082] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Igor Iriarte
- Departamento de Química Orgánica I; Universidad del País Vasco UPV/EHU; Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Silvia Vera
- Departamento de Química Orgánica I; Universidad del País Vasco UPV/EHU; Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Eider Badiola
- Departamento de Química Orgánica I; Universidad del País Vasco UPV/EHU; Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Antonia Mielgo
- Departamento de Química Orgánica I; Universidad del País Vasco UPV/EHU; Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Mikel Oiarbide
- Departamento de Química Orgánica I; Universidad del País Vasco UPV/EHU; Manuel Lardizabal 3 20018 San Sebastián Spain
| | - Jesús M. García
- Departamento de Química Aplicada; Universidad Pública de Navarra; 31006 Pamplona Spain
| | - José M. Odriozola
- Departamento de Química Aplicada; Universidad Pública de Navarra; 31006 Pamplona Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I; Universidad del País Vasco UPV/EHU; Manuel Lardizabal 3 20018 San Sebastián Spain
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11
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Yamamoto T, Dai J, Jacobsen NE, Ammam M, Hall GB, Mozziconacci O, Schöneich C, Wilson GS, Glass RS. Neighboring π-Amide Participation in Thioether Oxidation: Conformational Control. Org Lett 2016; 18:3522-5. [DOI: 10.1021/acs.orglett.6b01309] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Takuhei Yamamoto
- Department
of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721, United States
| | - Jixun Dai
- Department
of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721, United States
| | - Neil E. Jacobsen
- Department
of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721, United States
| | - Malika Ammam
- Department
of Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States
| | - Gabriel B. Hall
- Department
of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721, United States
| | - Olivier Mozziconacci
- Department
of Pharmaceutical Chemistry, The University of Kansas, Lawrence, Kansas 66047, United States
| | - Christian Schöneich
- Department
of Pharmaceutical Chemistry, The University of Kansas, Lawrence, Kansas 66047, United States
| | - George S. Wilson
- Department
of Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States
| | - Richard S. Glass
- Department
of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721, United States
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12
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Gao L, Han J, Lei X. Enantioselective Total Syntheses of Kuwanon X, Kuwanon Y, and Kuwanol A. Org Lett 2016; 18:360-3. [DOI: 10.1021/acs.orglett.5b03285] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lei Gao
- Graduate
School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Jianguang Han
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
| | - Xiaoguang Lei
- Graduate
School of Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100730, China
- National Institute of Biological Sciences (NIBS), Beijing 102206, China
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic
Chemistry and Molecular Engineering of Ministry of Education, Department
of Chemical Biology, College of Chemistry and Molecular Engineering,
Synthetic and Functional Biomolecules Center, and Peking-Tsinghua
Center for Life Sciences, Peking University, Beijing 100871, China
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13
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Li X, Han J, Jones AX, Lei X. Chiral Boron Complex-Promoted Asymmetric Diels–Alder Cycloaddition and Its Application in Natural Product Synthesis. J Org Chem 2015; 81:458-68. [DOI: 10.1021/acs.joc.5b02248] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xia Li
- School
of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
- National Institute of Biological Sciences (NIBS), Beijing, 102206, China
| | - Jianguang Han
- School
of Pharmaceutical Science and Technology, Tianjin University, Tianjin, 300072, China
- National Institute of Biological Sciences (NIBS), Beijing, 102206, China
| | - Alexander X. Jones
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic
Chemistry and Molecular Engineering of Ministry of Education, Department
of Chemical Biology, College of Chemistry and Molecular Engineering,
Synthetic and Functional Biomolecules Center, and Center for Life
Sciences, Peking University, Beijing, 100871, China
| | - Xiaoguang Lei
- National Institute of Biological Sciences (NIBS), Beijing, 102206, China
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Bioorganic
Chemistry and Molecular Engineering of Ministry of Education, Department
of Chemical Biology, College of Chemistry and Molecular Engineering,
Synthetic and Functional Biomolecules Center, and Center for Life
Sciences, Peking University, Beijing, 100871, China
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14
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Salavati-fard T, Caratzoulas S, Doren DJ. DFT Study of Solvent Effects in Acid-Catalyzed Diels–Alder Cycloadditions of 2,5-Dimethylfuran and Maleic Anhydride. J Phys Chem A 2015; 119:9834-43. [DOI: 10.1021/acs.jpca.5b05060] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Taha Salavati-fard
- Department of Physics and Astronomy, ‡Catalysis Center
for Energy Innovation
(CCEI), Department of Chemical and Biomolecular Engineering, and §Department of
Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Stavros Caratzoulas
- Department of Physics and Astronomy, ‡Catalysis Center
for Energy Innovation
(CCEI), Department of Chemical and Biomolecular Engineering, and §Department of
Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Douglas J Doren
- Department of Physics and Astronomy, ‡Catalysis Center
for Energy Innovation
(CCEI), Department of Chemical and Biomolecular Engineering, and §Department of
Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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15
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Oelerich J, Roelfes G. Alkylidene malonates and α,β-unsaturated α′-hydroxyketones as practical substrates for vinylogous Friedel–Crafts alkylations in water catalysed by scandium(iii) triflate/SDS. Org Biomol Chem 2015; 13:2793-9. [DOI: 10.1039/c4ob02487g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Alkylidene malonates and α,β-unsaturated α′-hydroxyketones are excellent substrates for the Sc(OTf)3/SDS catalysed Friedel–Crafts alkylation in water.
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Affiliation(s)
- Jens Oelerich
- Stratingh Institute for Chemistry
- University of Groningen
- 9747 AG Groningen
- The Netherlands
| | - Gerard Roelfes
- Stratingh Institute for Chemistry
- University of Groningen
- 9747 AG Groningen
- The Netherlands
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16
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Badiola E, Fiser B, Gómez-Bengoa E, Mielgo A, Olaizola I, Urruzuno I, García JM, Odriozola JM, Razkin J, Oiarbide M, Palomo C. Enantioselective Construction of Tetrasubstituted Stereogenic Carbons through Brønsted Base Catalyzed Michael Reactions: α′-Hydroxy Enones as Key Enoate Equivalent. J Am Chem Soc 2014; 136:17869-81. [DOI: 10.1021/ja510603w] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Eider Badiola
- Departamento
de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal 3, 20018-San Sebastián, Spain
| | - Béla Fiser
- Departamento
de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal 3, 20018-San Sebastián, Spain
| | - Enrique Gómez-Bengoa
- Departamento
de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal 3, 20018-San Sebastián, Spain
| | - Antonia Mielgo
- Departamento
de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal 3, 20018-San Sebastián, Spain
| | - Iurre Olaizola
- Departamento
de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal 3, 20018-San Sebastián, Spain
| | - Iñaki Urruzuno
- Departamento
de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal 3, 20018-San Sebastián, Spain
| | - Jesús M. García
- Departamento
de Química Aplicada, Institute of Advanced Materials (INAMAT), Universidad Pública de Navarra, 31006-Pamplona, Spain
| | - José M. Odriozola
- Departamento
de Química Aplicada, Institute of Advanced Materials (INAMAT), Universidad Pública de Navarra, 31006-Pamplona, Spain
| | - Jesús Razkin
- Departamento
de Química Aplicada, Institute of Advanced Materials (INAMAT), Universidad Pública de Navarra, 31006-Pamplona, Spain
| | - Mikel Oiarbide
- Departamento
de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal 3, 20018-San Sebastián, Spain
| | - Claudio Palomo
- Departamento
de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal 3, 20018-San Sebastián, Spain
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17
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Liu X, Hu L, Liu X, Jia J, Jiang L, Lin J, Chen X. A new approach to asymmetric synthesis of infectocaryone. Org Biomol Chem 2014; 12:7603-11. [DOI: 10.1039/c4ob01162g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new approach to the asymmetric synthesis of infectocaryone featuring a regioselective and stereoselective Diels–Alder reaction of an isomeric dienophile mixture is developed.
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Affiliation(s)
- Xiubing Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064, People's Republic of China
| | - Lingling Hu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064, People's Republic of China
| | - Xiaojing Liu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064, People's Republic of China
| | - Junhao Jia
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064, People's Republic of China
| | - Lizhen Jiang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064, People's Republic of China
| | - Jiangfeng Lin
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064, People's Republic of China
| | - Xiaochuan Chen
- Key Laboratory of Green Chemistry & Technology of Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064, People's Republic of China
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18
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Kopel LC, Ahmed MS, Halaweish FT. Synthesis of novel estrone analogs by incorporation of thiophenols via conjugate addition to an enone side chain. Steroids 2013; 78:1119-25. [PMID: 23899492 DOI: 10.1016/j.steroids.2013.07.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 07/09/2013] [Accepted: 07/18/2013] [Indexed: 12/24/2022]
Abstract
Functionalized estrogen analogs have received interest due to their unique and differing biological activity compared to their parent compounds. The synthesis of a new class of 3-methoxyestrone analogs functionalized at the C17 position possessing both alkyl and aryl substituted α,β-unsaturated ketones is described, along with their thiophenol conjugate addition products.
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Affiliation(s)
- Lucas C Kopel
- Department of Chemistry & Biochemistry, South Dakota State University, Brookings, SD, USA
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19
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Gould E, Lebl T, Slawin AMZ, Reid M, Davies T, Smith AD. The development of highly active acyclic chiral hydrazides for asymmetric iminium ion organocatalysis. Org Biomol Chem 2013; 11:7877-92. [DOI: 10.1039/c3ob41719k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Zhu JL, Chen PE, Huang HW. Lewis acid mediated asymmetric Diels–Alder reactions of chiral 2-phosphonoacrylates. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2012.11.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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21
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Boesenbergia rotunda: From Ethnomedicine to Drug Discovery. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:473637. [PMID: 23243448 PMCID: PMC3519102 DOI: 10.1155/2012/473637] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Accepted: 08/06/2012] [Indexed: 01/11/2023]
Abstract
Boesenbergia rotunda is a herb from the Boesenbergia genera under the Zingiberaceae family. B. rotunda is widely found in Asian countries where it is commonly used as a food ingredient and in ethnomedicinal preparations. The popularity of its ethnomedicinal usage has drawn the attention of scientists worldwide to further investigate its medicinal properties. Advancement in drug design and discovery research has led to the development of synthetic drugs from B. rotunda metabolites via bioinformatics and medicinal chemistry studies. Furthermore, with the advent of genomics, transcriptomics, proteomics, and metabolomics, new insights on the biosynthetic pathways of B. rotunda metabolites can be elucidated, enabling researchers to predict the potential bioactive compounds responsible for the medicinal properties of the plant. The vast biological activities exhibited by the compounds obtained from B. rotunda warrant further investigation through studies such as drug discovery, polypharmacology, and drug delivery using nanotechnology.
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22
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Zhu X, Liu J, Zhang D, Liu C. Theoretical illustration on the catalytic effect of alanine methyl ester nitrate ionic liquid on the Diels–Alder reaction between cyclopentadiene and methacrylate. COMPUT THEOR CHEM 2012. [DOI: 10.1016/j.comptc.2012.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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23
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Palomo C, Oiarbide M, García JM. α-Hydroxy ketones as useful templates in asymmetric reactions. Chem Soc Rev 2012; 41:4150-64. [PMID: 22511185 DOI: 10.1039/c2cs35046g] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Approaching the Nature's efficiency in controlling both reactivity and stereoselectivity of organic reactions by means of a catalyst species remains a formidable challenge for chemists to face. Despite impressive advances in the design of novel catalysts and activation modes, current catalytic and asymmetric methodologies rarely meet desirable standards of robustness, substrate scope, and selectivity altogether. One trick to improve catalyst behaviour is to identify adequate substrate template-catalyst combinations so that optimum performance of the reaction system could be achieved. During the last couple of years α-hydroxy ketones, and most particularly α'-hydroxy enones, have emerged as useful templates with applications in a number of metal-catalyzed as well as organocatalyzed C-C and C-X bond-forming stereoselective reactions. The first review of these accomplishments is presented here along with a brief historical introduction.
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Affiliation(s)
- Claudio Palomo
- Departamento de Química Orgánica I, Facultad de Química, Universidad del País Vasco UPV/EHU, Apdo. 1072, 20080 San Sebastián, Spain.
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24
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Schmidt RK, Müther K, Mück-Lichtenfeld C, Grimme S, Oestreich M. Silylium ion-catalyzed challenging Diels-Alder reactions: the danger of hidden proton catalysis with strong Lewis acids. J Am Chem Soc 2012; 134:4421-8. [PMID: 22309027 DOI: 10.1021/ja211856m] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The pronounced Lewis acidity of tricoordinate silicon cations brings about unusual reactivity in Lewis acid catalysis. The downside of catalysis with strong Lewis acids is, though, that these do have the potential to mediate the formation of protons by various mechanisms, and the thus released Brønsted acid might even outcompete the Lewis acid as the true catalyst. That is an often ignored point. One way of eliminating a hidden proton-catalyzed pathway is to add a proton scavenger. The low-temperature Diels-Alder reactions catalyzed by our ferrocene-stabilized silicon cation are such a case where the possibility of proton catalysis must be meticulously examined. Addition of the common hindered base 2,6-di-tert-butylpyridine resulted, however, in slow decomposition along with formation of the corresponding pyridinium ion. Quantitative deprotonation of the silicon cation was observed with more basic (Mes)(3)P to yield the phosphonium ion. A deuterium-labeling experiment verified that the proton is abstracted from the ferrocene backbone. A reasonable mechanism of the proton formation is proposed on the basis of quantum-chemical calculations. This is, admittedly, a particular case but suggests that the use of proton scavengers must be carefully scrutinized, as proton formation might be provoked rather than prevented. Proton-catalyzed Diels-Alder reactions are not well-documented in the literature, and a representative survey employing TfOH is included here. The outcome of these catalyses is compared with our silylium ion-catalyzed Diels-Alder reactions, thereby clearly corroborating that hidden Brønsted acid catalysis is not operating with our Lewis acid. Several simple-looking but challenging Diels-Alder reactions with exceptionally rare dienophile/enophile combinations are reported. Another indication is obtained from the chemoselectivity of the catalyses. The silylium ion-catalyzed Diels-Alder reaction is general with regard to the oxidation level of the α,β-unsaturated dienophile (carbonyl and carboxyl), whereas proton catalysis is limited to carbonyl compounds.
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Affiliation(s)
- Ruth K Schmidt
- Institut für Chemie, Technische Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany
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25
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The use of d-glucose-based silyloxy dienes in anthracyclinone synthesis. JOURNAL OF SAUDI CHEMICAL SOCIETY 2011. [DOI: 10.1016/j.jscs.2010.10.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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