1
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Algar S, Vázquez-Villa H, Aguilar-Garrido P, Navarro-Aguadero MÁ, Velasco-Estévez M, Sánchez-Merino A, Arribas-Álvarez I, Paradela A, Giner-Arroyo RL, Tamargo-Azpilicueta J, Díaz-Moreno I, Martínez-López J, Gallardo M, López-Rodríguez ML, Benhamú B. Cancer-Stem-Cell Phenotype-Guided Discovery of a Microbiota-Inspired Synthetic Compound Targeting NPM1 for Leukemia. JACS AU 2024; 4:1786-1800. [PMID: 38818079 PMCID: PMC11134387 DOI: 10.1021/jacsau.3c00682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 06/01/2024]
Abstract
The human microbiota plays an important role in human health and disease, through the secretion of metabolites that regulate key biological functions. We propose that microbiota metabolites represent an unexplored chemical space of small drug-like molecules in the search of new hits for drug discovery. Here, we describe the generation of a set of complex chemotypes inspired on selected microbiota metabolites, which have been synthesized using asymmetric organocatalytic reactions. Following a primary screening in CSC models, we identified the novel compound UCM-13369 (4b) whose cytotoxicity was mediated by NPM1. This protein is one of the most frequent mutations of AML, and NPM1-mutated AML is recognized by the WHO as a distinct hematopoietic malignancy. UCM-13369 inhibits NPM1 expression, downregulates the pathway associated with mutant NPM1 C+, and specifically recognizes the C-end DNA-binding domain of NPM1 C+, avoiding the nucleus-cytoplasm translocation involved in the AML tumorological process. The new NPM1 inhibitor triggers apoptosis in AML cell lines and primary cells from AML patients and reduces tumor infiltration in a mouse model of AML with NPM1 C+ mutation. The disclosed phenotype-guided discovery of UCM-13369, a novel small molecule inspired on microbiota metabolites, confirms that CSC death induced by NPM1 inhibition represents a promising therapeutic opportunity for NPM1-mutated AML, a high-mortality disease.
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Affiliation(s)
- Sergio Algar
- Department
of Organic Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Henar Vázquez-Villa
- Department
of Organic Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Pedro Aguilar-Garrido
- Department
of Haematology, Hospital Universitario 12
de Octubre, Instituto de Investigación Sanitaria Hospital 12
de Octubre (imas12), E-28041 Madrid, Spain
- H12O-CNIO
Haematological Malignancies Clinical Research Unit, Spanish National Cancer Research Centre, E-28029 Madrid, Spain
| | - Miguel Ángel Navarro-Aguadero
- Department
of Haematology, Hospital Universitario 12
de Octubre, Instituto de Investigación Sanitaria Hospital 12
de Octubre (imas12), E-28041 Madrid, Spain
- H12O-CNIO
Haematological Malignancies Clinical Research Unit, Spanish National Cancer Research Centre, E-28029 Madrid, Spain
| | - María Velasco-Estévez
- Department
of Haematology, Hospital Universitario 12
de Octubre, Instituto de Investigación Sanitaria Hospital 12
de Octubre (imas12), E-28041 Madrid, Spain
- H12O-CNIO
Haematological Malignancies Clinical Research Unit, Spanish National Cancer Research Centre, E-28029 Madrid, Spain
| | - Anabel Sánchez-Merino
- Department
of Organic Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Iván Arribas-Álvarez
- Department
of Organic Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | | | - Rafael L. Giner-Arroyo
- Institute
for Chemical Research, cicCartuja, University
of Seville, CSIC, E-41092 Sevilla, Spain
| | | | - Irene Díaz-Moreno
- Institute
for Chemical Research, cicCartuja, University
of Seville, CSIC, E-41092 Sevilla, Spain
| | - Joaquín Martínez-López
- Department
of Haematology, Hospital Universitario 12
de Octubre, Instituto de Investigación Sanitaria Hospital 12
de Octubre (imas12), E-28041 Madrid, Spain
- H12O-CNIO
Haematological Malignancies Clinical Research Unit, Spanish National Cancer Research Centre, E-28029 Madrid, Spain
| | - Miguel Gallardo
- Department
of Haematology, Hospital Universitario 12
de Octubre, Instituto de Investigación Sanitaria Hospital 12
de Octubre (imas12), E-28041 Madrid, Spain
- H12O-CNIO
Haematological Malignancies Clinical Research Unit, Spanish National Cancer Research Centre, E-28029 Madrid, Spain
| | - María L. López-Rodríguez
- Department
of Organic Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - Bellinda Benhamú
- Department
of Organic Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, E-28040 Madrid, Spain
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2
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Marcantonio E, Curti C. Shaping Chirality via Stereoselective, Organocatalytic [4+2] Cycloadditions involving Heterocyclic ortho-Quinodimethanes. Chemistry 2024; 30:e202304001. [PMID: 38235930 DOI: 10.1002/chem.202304001] [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: 11/30/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 01/19/2024]
Abstract
Polycyclic compounds bearing a complex heterocyclic core such as an aromatic heterocycle "fused" with one or more functionalized rings, are widespread leading molecules in the domain of synthetic organic chemistry and pharmaceuticals. Although many synthetic methodologies have been devised to access achiral, fused heteroaromatic scaffolds, or related chiral variants adorned with out-of-cycle stereogenic elements, equally efficient strategies to afford chiral heterocycles featuring in-cycle stereocenters, exist to a lesser extent and presently represent a growing field of investigation. The mild, organocatalytic generation of elusive ortho-quinodimethane intermediates (oQDMs), derived from suitable heteroaromatic carbonyl- or carbonyl-like pronucleophiles has recently proved successful in the synthesis of such peculiar chiral architectures via stereoselective [4+2] cycloadditions. This review provides an overview of the most important advances attained in this field over the last decade.
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Affiliation(s)
- Enrico Marcantonio
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124, Parma, Italy
| | - Claudio Curti
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 27/A, 43124, Parma, Italy
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3
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Li YH, Chen JH, Yang Z. Exo-Selective Diels-Alder Reactions. Chemistry 2024; 30:e202304371. [PMID: 38412422 DOI: 10.1002/chem.202304371] [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: 12/30/2023] [Indexed: 02/29/2024]
Abstract
The Diels-Alder reaction stands as one of the most pivotal transformations in organic chemistry. Its efficiency, marked by the formation of two carbon-carbon bonds and up to four new stereocenters in a single step, underscores its versatility and indispensability in synthesizing natural products and pharmaceuticals. The most significant stereoselectivity feature is the "endo rule". While this rule underpins the predictability of the stereochemical outcomes, it also underscores the challenges in achieving the opposite diastereoselectivity, making the exo-Diels-Alder reactions often considered outliers. This review delves into recent examples of exo-Diels-Alder reactions, shedding light on the factors inverting the intrinsic tendency. We explore the roles of steric, electrostatic, and orbital interactions, as well as thermodynamic equilibriums in influencing exo/endo selectivity. Furthermore, we illustrate strategies to manipulate these factors, employing approaches such as bulky substituents, s-cis conformations, transient structural constraints, and innovative control physics. Through these analyses, our aim is to provide a comprehensive understanding of how to predict and design exo-Diels-Alder reactions, paving the way for new diastereoselective catalyst systems and expanding the chemical scope of Diels-Alder reactions.
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Affiliation(s)
- Yuan-He Li
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, China
| | - Jia-Hua Chen
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, China
| | - Zhen Yang
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), and Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, China
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055
- Shenzhen Bay Laboratory, Shenzhen, 518067, China
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4
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Niu L, Guo H, Jia F, Shen J, Wang Y, Hu X. DNDMH-mediated direct nitration of aryl alkenes. Chem Commun (Camb) 2024; 60:3202-3204. [PMID: 38415740 DOI: 10.1039/d3cc06275a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
N-nitro type reagents have been demonstrated as mild nitration tools in recent years. This work presents an exploration of direct nitration of aryl alkenes mediated by DNDMH, a novel N-nitro type reagent developed in our previous study. It exhibits herein a new property of DNDMH as an effective direct nitration reagent for aryl alkenes, through probably the delivery of nitro radicals with the aid of TEMPO and Cu(OAc)2.
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Affiliation(s)
| | - Hao Guo
- Northwest University, Xi'an, China.
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5
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Wang J, Yu R, Nian C, Liao M, Han Z, Sun J, Huang H. Metal-Free C(sp 3)-H Bond Arylation of 3-Methylindole Derivatives via 3-Indole Imine Methides. Org Lett 2023; 25:8478-8483. [PMID: 37966338 DOI: 10.1021/acs.orglett.3c03406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Direct arylation of the benzylic C(sp3)-H bond is one of the most straightforward strategies for the construction of multi-aryl methanes, owing to the extraordinary step and atom economy. In this paper, we developed the first metal-free arylation of the C(sp3)-H bond in 3-methylindoles, thereby providing rapid access to a range of diaryl- and triarylmethanes with two indole rings. Mechanistically, 3-indole imine methide serves as the key intermediate. Water plays a crucial role in this process, likely serving as a proton shuttle to facilitate the key 1,3-proton transfer step in this reaction and, thus, enhance the reaction efficiency.
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Affiliation(s)
- Jie Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
| | - Run Yu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
| | - Cuicui Nian
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
| | - Maoyan Liao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
| | - Zhengyu Han
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay Kowloon, Hong Kong Special Administrative Region of the People's Republic of China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, People's Republic of China
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6
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Zhang JY, Chen JY, Gao CH, Yu L, Ni SF, Tan W, Shi F. Asymmetric (4+n) Cycloadditions of Indolyldimethanols for the Synthesis of Enantioenriched Indole-Fused Rings. Angew Chem Int Ed Engl 2023; 62:e202305450. [PMID: 37345905 DOI: 10.1002/anie.202305450] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/22/2023] [Accepted: 06/22/2023] [Indexed: 06/23/2023]
Abstract
Catalytic asymmetric construction of chiral indole-fused rings has become an important issue in the chemical community because of the significance of such scaffolds. In this work, we have accomplished the first catalytic asymmetric (4+2) and (4+3) cycloadditions of 2,3-indolyldimethanols by using indoles and 2-naphthols as suitable reaction partners under the catalysis of chiral phosphoric acids, constructing enantioenriched indole-fused six-membered and seven-membered rings in high yields with excellent enantioselectivities. In addition, this approach is used to realize the first enantioselective construction of challenging tetrahydroindolocarbazole scaffolds, which are found to show promising anticancer activity. More importantly, theoretical calculations of the reaction pathways and activation mode offer an in-depth understanding of this class of indolylmethanols. This work not only settles the challenges in realizing catalytic asymmetric cycloadditions of indolyldimethanols but also provides a powerful strategy for the construction of enantioenriched indole-fused rings.
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Affiliation(s)
- Jia-Yi Zhang
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
| | - Jia-Yi Chen
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, 515063, Shantou, China
| | - Cong-Hui Gao
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
| | - Lei Yu
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
| | - Shao-Fei Ni
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, 515063, Shantou, China
| | - Wei Tan
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
| | - Feng Shi
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
- School of Petrochemical Engineering, Changzhou University, 213164, Changzhou, China
- School of Chemistry and Chemical Engineering, Henan Normal University, 453007, Xinxiang, China
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7
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Prasad MS, Bharani MS, Jha MAK, Naik MSC, Sivaprakash M, Chowhan LR. Enantioselective Synthesis of Octahydrofuranoindole Core of Aspidosperma Alkaloids via a Diels-Alder/Reduction/Fluoroetherification Reaction Sequence. Chem Asian J 2023; 18:e202300419. [PMID: 37415449 DOI: 10.1002/asia.202300419] [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: 05/13/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/08/2023]
Abstract
Herein, we disclose the enantioselective synthesis of novel tricyclic fluorooctahydrofuranoindole spirooxindoles bearing five contiguous stereocenters via an organocatalytic sequential Diels-Alder/Reduction/Fluoroetherifiction reaction strategy. The potential of the developed approach was witnessed by generating vast examples (up to 20 examples) of library molecules embedding natural product core with good yields and phenomenal diastereo- and enantioselectivities (up to 77 % overall yield, up to 99 % ee and 10 : 1 dr). The synthetic utility of our protocol was further demonstrated by synthesizing tricyclic iodooctahydroindole spirooxindole framework through sequential Diels-Alder/reduction/iodoetherification reaction in 65 % overall yield and excellent stereoselectivity (99 % ee and 4 : 1 dr).
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Affiliation(s)
- Madavi S Prasad
- Asymmetric synthesis and catalysis laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN)., Tiruvarur, 610 005, India
| | - Ms Sankar Bharani
- Asymmetric synthesis and catalysis laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN)., Tiruvarur, 610 005, India
| | - Mr Aman Kumar Jha
- Asymmetric synthesis and catalysis laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN)., Tiruvarur, 610 005, India
| | - Mr Sugali Chetan Naik
- Asymmetric synthesis and catalysis laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN)., Tiruvarur, 610 005, India
| | - Murugesan Sivaprakash
- Asymmetric synthesis and catalysis laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN)., Tiruvarur, 610 005, India
| | - L Raju Chowhan
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
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8
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Prasad MS, Sivaprakash M, Bharani S, Chowhan LR. Trienamine catalysed unprecedented remote olefin E/ Z isomerisation/[4 + 2]-cycloaddition reaction to access spirooxindole hexahydroindoles. Org Biomol Chem 2023; 21:945-949. [PMID: 36606372 DOI: 10.1039/d2ob02228a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Herein, for the first time, we report the asymmetric synthesis of an unexpected stereoisomer of spirohexahydroindole via a trienamine-catalysed remote olefin E/Z isomerisation/[4 + 2]-cycloaddition reaction. The reaction afforded a vast library of aesthetically pleasing spirooxindole hexahydroindole scaffolds with exceptional enantio- and diastereo-selectivities (up to 95% yield, 99% ee and >99 : 1 dr). In addition, we demonstrated the synthetic transformation of enantiomerically pure spirooxindole hexahydroindoles to synthesize alkyl homologated spirooxindole hexahydroindole and fluoro-pyranooctahydroindole moieties with four and seven contiguous stereocenters, respectively, in excellent yield and selectivities. We have also demonstrated the evidence for the proposed pathway through NMR investigations.
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Affiliation(s)
- Madavi S Prasad
- Asymmetric Synthesis and Catalysis Laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN), Tiruvarur-610 005, India.
| | - Murugesan Sivaprakash
- Asymmetric Synthesis and Catalysis Laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN), Tiruvarur-610 005, India.
| | - Sankar Bharani
- Asymmetric Synthesis and Catalysis Laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN), Tiruvarur-610 005, India.
| | - L Raju Chowhan
- School of Applied Material Sciences, Centre for Applied Chemistry, Central University of Gujarat, Sector-30, Gandhinagar-382030, Gujarat, India
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9
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Prasad MS, Sivaprakash M. Asymmetric synthesis of the perhydroepoxyethanoindole core via sequential [4 + 2]-addition/reduction/fluoroannulation reactions. Org Biomol Chem 2023; 21:339-344. [PMID: 36477116 DOI: 10.1039/d2ob02058k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Herein, we present the sequential aminocatalytic [4 + 2]-addition/reduction and fluoroannulation reactions to afford a novel class of bridged fluoro-perhydroepoxyethanoindole spiropyrazolone and fluoro-perhydroepoxyethanoindole spirooxindole moieties with six contiguous stereocenters. An array of perhydroepoxyethanoindole core derivatives (up to 31 examples) mimicking aspidosperma alkaloids were obtained with moderate to good yields and excellent enantio- and diastereo-selectivities (up to 69% overall yield, up to 99.9% ee and up to >20 : 1 dr). Furthermore, we have also disclosed the synthesis of the unexpected tribromo derivative of hexahydroepoxyethanoindole spiropyrazolone in a moderate yield with excellent selectivity by employing the developed protocol in sequential bromoannulation reactions.
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Affiliation(s)
- Madavi S Prasad
- Asymmetric synthesis and catalysis laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN), Tiruvarur-610 005, India.
| | - Murugesan Sivaprakash
- Asymmetric synthesis and catalysis laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN), Tiruvarur-610 005, India.
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10
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Corti V, Thøgersen MK, Enemærke VJ, Rezayee NM, Barløse CL, Anker Jørgensen K. Construction of C‐N Atropisomers by Aminocatalytic Enantioselective Addition of Indole‐2‐carboxaldehydes to
o
‐Quinone Derivatives. Chemistry 2022; 28:e202202395. [DOI: 10.1002/chem.202202395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Vasco Corti
- Department of Chemistry Aarhus University Aarhus 8000 Aarhus C Denmark
| | | | | | - Nomaan M. Rezayee
- Department of Chemistry Aarhus University Aarhus 8000 Aarhus C Denmark
| | - Casper L. Barløse
- Department of Chemistry Aarhus University Aarhus 8000 Aarhus C Denmark
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11
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First enantioselective synthesis of tetrahydrochromeno[2,3-b]carbazolylacetaldehyde via trienamine catalysis and its biological activity. Chem Heterocycl Compd (N Y) 2022. [DOI: 10.1007/s10593-022-03098-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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12
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Prasad MS, Sivaprakash M, Palanichamy A. Aminocatalytic asymmetric [4 + 2]-annulation to access functionally rich hexahydrospiroindole pyrazolones. Org Biomol Chem 2022; 20:6329-6333. [PMID: 35876851 DOI: 10.1039/d2ob01085b] [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
Herein, we report the [4 + 2]-annulation of in situ generated trienamine from 2-(E)-benzylidine-3-pyrrolidinyl acraldehyde with pyrazolone olefins for the first time. It is a robust protocol for the synthesis of biologically appealing functionally rich hexahydrospiroindole pyrazolones which is reflected in excellent yields, stereoselectivity, operational simplicity and broad substrate scope as demonstrated in this paper. Furthermore, we have also explored the synthetic applications of optically pure hexahydrospiroindole pyrazolone to construct biologically important alkylated hexahydrospiroindole pyrazolone and octahydrospiroindole pyrazolone with good yields and high selectivity.
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Affiliation(s)
- Madavi S Prasad
- Asymmetric synthesis and catalysis laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN), Tiruvarur-610 005, India.
| | - Murugesan Sivaprakash
- Asymmetric synthesis and catalysis laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN), Tiruvarur-610 005, India.
| | - A Palanichamy
- Asymmetric synthesis and catalysis laboratory, Department of Chemistry, Central University of Tamil Nadu (CUTN), Tiruvarur-610 005, India.
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13
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Zhan SC, Fang RJ, Sun J, Yan CG. Copper-catalyzed multicomponent reactions for the efficient synthesis of diverse spirotetrahydrocarbazoles. Beilstein J Org Chem 2022; 18:796-808. [PMID: 35875709 PMCID: PMC9273986 DOI: 10.3762/bjoc.18.80] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/29/2022] [Indexed: 01/20/2023] Open
Abstract
In the presence of copper sulfate, three- or four-component reactions of 2-methylindole, aromatic aldehydes and various cyclic dienophiles in refluxing toluene afforded diverse spirotetrahydrocarbazoles. This reaction is an important development of the Levy reaction by using 2-methylindole to replace ethyl indole-2-acetate and successfully provides facile access to important polysubstituted spiro[carbazole-3,3'-indolines], spiro[carbazole-2,3'-indolines], spiro[carbazole-3,5'-pyrimidines] and spiro[carbazole-3,1'-cycloalkanes] in satisfactory yields and with high diastereoselectivity.
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Affiliation(s)
- Shao-Cong Zhan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ren-Jie Fang
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jing Sun
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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14
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Alkyne–thiocarbonyl metathesis instead of Diels–Alder addition: Coupling of thiopyrano[4,3-b]indole-3(5H)-thiones and dimethyl acetylenedicarboxylate. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132751] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Przydacz A, Topolska A, Skrzyńska A, Albrecht Ł. NHC‐catalyzed 1,4‐elimination in the dearomative activation of 3‐furaldehydes towards (4+2)‐cycloadditions. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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16
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Topolska A, Frankowski S, Albrecht Ł. Differentiating Catalysis in the Dearomative [4 + 2]-Cycloaddition Involving Enals and Heteroaromatic Aldehydes. Org Lett 2022; 24:955-959. [PMID: 35040652 PMCID: PMC8805123 DOI: 10.1021/acs.orglett.1c04328] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
In this paper, the
application of differentiating catalysis in
the [4 + 2]-cycloaddition between 2-alkyl-3-formylheteroarenes and
α,β-unsaturated aldehydes is described. Within the developed
approach, the same aminocatalyst is employed for the independent activation
of both starting materials, differentiating their properties via LUMO-lowering
and HOMO-rising principles. By the combination of dearomative dienamine
activation with iminium ion chemistry high enantio- and diastereoselectivity
of the doubly asymmetric process was accomplished. Selected transformations
of products were also demonstrated.
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Affiliation(s)
- Aleksandra Topolska
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Sebastian Frankowski
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland
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17
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Przydacz A, Topolska A, Skrzyńska A, Frankowski S, Albrecht Ł. Aminocatalytic Alkylation of Indene‐2‐Carbaldehydes via Pentaenamine Activation. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Yang F, Hu Y, Wang L, Wu M, Yuan X, Liu Z, Li X, Wang Z, Zheng H. Palladium‐Catalyzed Coupling Reaction of o‐Alkenyl Chloroformylaniline with o‐Alkynylaniline: An Approach to Indolylmethyl Oxindole. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Fanpeng Yang
- Northwest A&F University: Northwest Agriculture and Forestry University College of Chemistry and Pharmacy CHINA
| | - Yina Hu
- Northwest A&F University: Northwest Agriculture and Forestry University College of Chemistry and Pharmacy CHINA
| | - Lu Wang
- Northwest A&F University: Northwest Agriculture and Forestry University College of Chemistry and Pharmacy CHINA
| | - Miaomiao Wu
- Northwest A&F University: Northwest Agriculture and Forestry University College of Chemistry and Pharmacy CHINA
| | - Xiaowen Yuan
- Northwest A&F University: Northwest Agriculture and Forestry University College of Chemistry and Pharmacy CHINA
| | - Zhigang Liu
- Northwest A&F University: Northwest Agriculture and Forestry University College of Chemistry and Pharmacy CHINA
| | - Xiuhuan Li
- Northwest A&F University: Northwest Agriculture and Forestry University State Key Laboratory of Crop Stress Biology for Arid Areas CHINA
| | - Zhengshen Wang
- Northwest Agriculture University: Northwest Agriculture and Forestry University College of Chemistry and Pharmacy CHINA
| | - Huaiji Zheng
- Northwest Agriculture and Forestry University College of Chemistry and Pharmacy 3 Taicheng Road 712100 Yangling CHINA
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19
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Paul N, Maity S, Panja S, Maiti D. Recent Advances in the Nitration of Olefins. CHEM REC 2021; 21:2896-2908. [PMID: 34569706 DOI: 10.1002/tcr.202100217] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/07/2021] [Indexed: 12/24/2022]
Abstract
Nitroolefins are important synthetic intermediates in the field of organic synthesis as well as in medicinal chemistry. The high reactivity of nitroalkenes due to the polarized double bond which enables them to act as Michael acceptor in conjugate addition reactions, or as a dienophile in cycloaddition makes it an essential synthetic handle for accessing complex molecules. The classical method to prepare nitroolefins is indeed the Henry nitroaldol reaction, where a carbonyl compound and nitroalkane are condensed in presence of base. Direct nitration of olefin, on the other hand, serves as a useful alternative as olefins are abundant, have broad commercial availability and easy to manipulate. In this context, numerous methods have been developed over the last few decades, focusing on direct nitration of styrene and aliphatic olefins. Furthermore, thorough literature search revealed that implementation of this class of reactions are gaining momentum as a preferred pathway to access nitroolefins, despite the presence of a powerful technique such as Henry reaction. In this review, we aim to cover recent advances in direct olefin nitration and their importance in accessing biorelevant molecules, total synthesis targets and future outlook in this specific research area.
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Affiliation(s)
- Nilanjan Paul
- IIT Hyderabad, Department of Chemistry Kandi, 502285, Telangana, India
| | - Soham Maity
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, 400076, Mumbai, India
| | - Subir Panja
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, 400076, Mumbai, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, 400076, Mumbai, India
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20
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Dourado J, Singh S, Davis RL. Exploring the Role of Aminocatalysis in the Dearomatization and Regioselectivity of Heteroaromatic Aldehydes. J Org Chem 2021; 86:11673-11682. [PMID: 34375521 DOI: 10.1021/acs.joc.1c01190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Heteroaromatic aldehydes have recently received a lot of attention as a scaffold for aminocatalytic functionalization as they allow for the construction of remote stereocenters and highly complex heterocyclic compounds. In this paper, we employ computational methods (M06-2X/cc-pVTZ//M06-2X/6-31 + G(d,p) and MP2/cc-pVTZ//M06-2X/6-31 + G(d,p)) to examine the abilities of secondary amines to activate several model heteroaromatic aldehydes by promoting loss of aromaticity and formation of the reactive trienamine intermediate. The hyperhomodesmotic equations used to assess the energy penalty for dearomatization show that the formation of the iminium ion decreases the energy cost for dearomatization, especially when X = O and S. Furthermore, we also investigated the role that the catalyst and heteroatom may have on the orbital coefficients of the various positions of the trienamine intermediary in order to better understand and/or predict the regioselectivity these systems may showcase. Synergistic effects between the catalyst and the heteroatom of the aromatic ring were observed to increase electron density at the most remote positions of several of the model systems studied.
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Affiliation(s)
- Jorge Dourado
- Chemistry Department, University of Manitoba, 360 Parker Building, 144 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada
| | - Simarpreet Singh
- Chemistry Department, University of Manitoba, 360 Parker Building, 144 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada
| | - Rebecca L Davis
- Chemistry Department, University of Manitoba, 360 Parker Building, 144 Dysart Road, Winnipeg, Manitoba R3T 2N2, Canada
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21
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Aluminum chloride-catalyzed Diels-Adler reaction involving arylmethylidenemalonates and conjugated dienes. Russ Chem Bull 2021. [DOI: 10.1007/s11172-021-3249-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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22
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Ming YC, Lv XJ, Liu M, Liu YK. Synthesis of Chiral Polycyclic Tetrahydrocarbazoles by Enantioselective Aminocatalytic Double Activation of 2-Hydroxycinnamaldehydes with Dienals. Org Lett 2021; 23:6515-6519. [PMID: 34374287 DOI: 10.1021/acs.orglett.1c02309] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient aminocatalytic enantioselective double-activation strategy has been developed that combines several different aminocatalytic modes in a cascade process, such as iminium ion, vinylogous iminium ion, trienamine, and dienamine activations. By using this strategy, 2-hydroxycinnamaldehydes worked well with various dienals via [4 + 2] cycloaddition and the oxa-Michael reaction-initiated cascade, respectively, leading to chiral polycyclic tetrahydrocarbazole and chromane derivatives with excellent diastereo- and enantioselectivities.
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Affiliation(s)
- Yong-Chao Ming
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Xue-Jiao Lv
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China
| | - Ming Liu
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
| | - Yan-Kai Liu
- Molecular Synthesis Center & Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao 266003, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Qingdao 266003, China
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23
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Zhan SC, Fang RJ, Sun J, Yan CG. Diastereoselective synthesis of spiro[carbazole-3,5'-pyrimidines] and spiro[carbazole-3,1'-cyclohexanes] via four-component reaction. Org Biomol Chem 2021; 19:6322-6327. [PMID: 34223583 DOI: 10.1039/d1ob01113h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Functionalized spiro[carbazole-3,5'-pyrimidines] and spiro[carbazole-3,1'-cyclohexanes] were efficiently synthesized in satisfactory yields with high diastereoselectivity by CuSO4 catalyzed multicomponent reaction of indole-2-acetate, aromatic aldehyde and 1,3-dimethylbarbituric acid or dimedone. The reaction was finished with sequential Diels-Alder reaction of both in situ generated indole-2,3-quinodimethane and a dienophile. Additionally, the initially formed spiro[carbazole-3,5'-pyrimidines] were converted to dehydrogenated spiro[carbazole-3,5'-pyrimidines] by DDQ oxidation. The initially formed spiro[carbazole-3,1'-cyclohexanes] were converted to δ-valerolactone-substituted carbazoles by a DDQ promoted Baeyer-Villiger oxidation process.
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Affiliation(s)
- Shao-Cong Zhan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Ren-Jie Fang
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Jing Sun
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
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24
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Luo J, Chenzhang P, Lan W, Li J, Qin Z, Fu B. A Highly Enantioselective Approach to Hydrocarbazole Derivatives Catalyzed by Diphenylmethylidene Bis(oxazoline)‐Ni(II) Complexes. ChemistrySelect 2021. [DOI: 10.1002/slct.202102134] [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)
- Jia‐yu Luo
- College of Science China Agricultural University Beijing 100193 P. R. China
| | - Peng‐fei Chenzhang
- College of Science China Agricultural University Beijing 100193 P. R. China
| | - Wenjie Lan
- College of Science China Agricultural University Beijing 100193 P. R. China
| | - Jia‐qi Li
- College of Science China Agricultural University Beijing 100193 P. R. China
| | - Zhaohai Qin
- College of Science China Agricultural University Beijing 100193 P. R. China
| | - Bin Fu
- College of Science China Agricultural University Beijing 100193 P. R. China
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25
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Yan C, Sun J, Han Y, Yan CG. Water Modulated Diastereoselective Synthesis of cis/ trans-Spiro[indoline-3,6'-naphtho[2,3- c]carbazoles]. J Org Chem 2021; 86:9263-9279. [PMID: 34197117 DOI: 10.1021/acs.joc.1c00044] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
p-TsOH catalyzed Diels-Alder reaction of 2-(1-alkylindol-3-yl)naphthalene-1,4-diones and 3-phenacylideneoxindoles showed fascinating diastereoselectivity. The reaction with the hydrated p-TsOH afforded trans-isomers of dihydrospiro[indoline-3,6'-naphtho[2,3-c]carbazoles] as major products. Alternatively, the reaction with anhydrous p-TsOH under a Dean and Stark apparatus predominately gave cis-isomer of dihydrospiro[indoline-3,6'-naphtho[2,3-c]carbazoles]. On the other hand, the similar p-TsOH catalyzed reaction of 2-(indol-3-yl)naphthalene-1,4-diones with 3-arylideneindolin-2-ones afforded cis/trans-isomers of dihydrospiro[indoline-3,6'-naphtho[2,3-c]carbazoles]. Additionally, the p-TsOH catalyzed reaction of 2-(indol-3-yl)naphthalene-1,4-diones with 2-arylidene-1,3-indanediones gave the expected spiro[indene-2,6'-naphtho[2,3-c]carbazoles] in satisfactory yields.
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Affiliation(s)
- Chen Yan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jing Sun
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ying Han
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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26
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Zhan SC, Fang RJ, Sun J, Yan CG. Multicomponent Reaction for Diastereoselective Synthesis of Spiro[carbazole-3,4'-pyrazoles] and Spiro[carbazole-3,4'-thiazoles]. J Org Chem 2021; 86:8726-8741. [PMID: 34111925 DOI: 10.1021/acs.joc.1c00538] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In the presence of copper sulfate, the three-component reaction of aromatic aldehydes, ethylindole-3-acetate and 4-arylidene-5-methyl-2-phenylpyrazol-3-ones, in refluxing toluene afforded spiro[carbazole-3,4'-pyrazoles] in good yields with high diastereoselectivity. More importantly, the similar CuSO4 promoted the four-component reaction of two molecular aromatic aldehydes with ethylindole-3-acetate and 5-methyl-2-phenyl-pyrazol-3-one resulted in 2,4-diarylspiro[carbazole-3,4'-pyrazoles] in satisfactory yields. Additionally, CuSO4 promoted the four-component reaction of two molecular aromatic aldehydes, ethylindole-3-acetate and 2-phenylthiazol-4-one, in refluxing toluene gave 2,4-diarylspiro[carbazole-3,4'-thiazoles] with diastereomeric ratios in the range of 3:1 to 20:1.
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Affiliation(s)
- Shao-Cong Zhan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ren-Jie Fang
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jing Sun
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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27
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Zhou L, Liu L. Highly enantioselective tandem cycloisomerization/Diels-Alder reaction of 2-(1-alkynyl)-2-alken-1-ones and enals: dual catalysis with platinum and amines. Chem Commun (Camb) 2021; 57:5690-5693. [PMID: 33982035 DOI: 10.1039/d1cc02080c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Herein, we disclosed a highly efficient strategy of enantioselective synthesis of 2,3-furan-fused carbocycles bearing three-contiguous stereocenters. This transformation is catalyzed by dual catalysis of PtCl4/chiral amines via tandem dehydrogenative annulation/Diels-Alder reaction of 2-(1-alkynyl)-2-alken-1-ones and enals. The in situ generation of the furan-based ortho-quinodimethane intermediates and the iminium activation of enals are crucial to this transformation.
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Affiliation(s)
- Liejin Zhou
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road Shanghai, 200241, P. R. China. and Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua, 321004, P. R. China
| | - Lu Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road Shanghai, 200241, P. R. China. and Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, Shanghai 200062, P. R. China
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28
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Abualnaja MM, Cowell J, Jolliffe JD, Wills C, Waddell PG, Clegg W, Hall MJ. Diastereoselective rearomative etherifications and aminations of 2,3,9,9a-tetrahydro-1H-carbazoles. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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29
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Jessen NI, Bertuzzi G, Bura M, Skipper ML, Jørgensen KA. Enantioselective Construction of the Cycl[3.2.2]azine Core via Organocatalytic [12 + 2] Cycloadditions. J Am Chem Soc 2021; 143:6140-6151. [PMID: 33872512 DOI: 10.1021/jacs.1c00499] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The first enantioselective [12 + 2] cycloaddition has been developed for the construction of a chiral cycl[3.2.2]azine core, a tricyclic moiety with a central ring-junction nitrogen atom, by an operationally simple one-step organocatalytic process. The reaction concept builds upon aminocatalytically generated 12π-components derived from 5H-benzo[a]pyrrolizine-3-carbaldehydes reacting with different electron-deficient 2π-components and affording the complex scaffold of benzo[a]cycl[3.2.2]azine (indolizino[3,4,5-ab]isoindole) with excellent enantio- and diastereoselectivity in good yields. The developed reaction is robust toward diverse substituent patterns and has been extended to different classes of electron-deficient 2π-components by minor variations in reaction setup. The obtained [12 + 2] cycloadducts are electron-deficient in nature, and their reaction with nucleophiles have been demonstrated. The enantioselective [12 + 2] cycloaddition with α,β-unsaturated aldehydes as the electron-deficient 2π-components relies upon an unconventional, simple aminocatalyst. In order to understand the high stereoselectivity of the [12 + 2] cycloaddition for this simple catalyst, combined experimental and computational investigations were performed. The investigations point to activation of both the 5H-benzo[a]pyrrolizine-3-carbaldehyde and the α,β-unsaturated aldehyde by the aminocatalyst and that the reaction proceeds by a stepwise cycloaddition, where especially the ring-closure is crucial for the stereochemical outcome. For other electron-deficient 2π-components, such as α,β-unsaturated ketoesters and nitroolefins, a more sterically demanding aminocatalyst has been applied and the corresponding [12 + 2] cycloadducts are obtained with excellent stereoselectivity. The [12 + 2] cycloaddition with vinyl sulfones afforded fully unsaturated systems, which display photoluminescence properties and for which quantum yields have been evaluated.
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Affiliation(s)
| | - Giulio Bertuzzi
- Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Maksimilian Bura
- Department of Chemistry, Aarhus University, DK-8000 Aarhus C, Denmark
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30
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Wang D, Sun J, Liu RZ, Wang Y, Yan CG. Diastereoselective Synthesis of Tetrahydrospiro[carbazole-1,3′-indolines] via an InBr3-Catalyzed Domino Diels–Alder Reaction. J Org Chem 2021; 86:5616-5629. [DOI: 10.1021/acs.joc.1c00103] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Daqian Wang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jing Sun
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ru-Zhang Liu
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Yang Wang
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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31
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Marcantonio E, Curti C, Battistini L, Sartori A, Cardinale L, Pelosi G, Zanardi F. Direct, Asymmetric Synthesis of Carbocycle‐Fused Uracils via [4+2] Cycloadditions: a Noncovalent Organocatalysis Approach. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Enrico Marcantonio
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27A 43124 Parma Italy
| | - Claudio Curti
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27A 43124 Parma Italy
| | - Lucia Battistini
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27A 43124 Parma Italy
| | - Andrea Sartori
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27A 43124 Parma Italy
| | - Luana Cardinale
- Department of Chemistry University of Hamburg Martin Luther King Platz 6 20146 Hamburg Germany
| | - Giorgio Pelosi
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale Università di Parma Parco Area delle Scienze 17A 43124 Parma Italy
| | - Franca Zanardi
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27A 43124 Parma Italy
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32
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Peňaška T, Palchykov V, Rakovský E, Addová G, Šebesta R. Stereoselective Organocatalytic Construction of Spiro Oxindole Pyrrolidines Using Unsaturated α‐Ketoesters and α‐Ketoamides. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Tibor Peňaška
- Department of Organic Chemistry Faculty of Natural Sciences Comenius University in Bratislava Mlynská dolina, Ilkovičova 6 84215 Bratislava Slovakia
| | - Vitalii Palchykov
- Department of Organic Chemistry Faculty of Natural Sciences Comenius University in Bratislava Mlynská dolina, Ilkovičova 6 84215 Bratislava Slovakia
- Research Institute of Chemistry and Geology Oles Honchar Dnipro National University Gagarina Av. 72 Dnipro 49010 Ukraine
| | - Erik Rakovský
- Department of Inorganic Chemistry Faculty of Natural Sciences Comenius University in Bratislava Mlynská dolina, Ilkovičova 6 84215 Bratislava Slovakia
| | - Gabriela Addová
- Department of Organic Chemistry Faculty of Natural Sciences Comenius University in Bratislava Mlynská dolina, Ilkovičova 6 84215 Bratislava Slovakia
| | - Radovan Šebesta
- Department of Organic Chemistry Faculty of Natural Sciences Comenius University in Bratislava Mlynská dolina, Ilkovičova 6 84215 Bratislava Slovakia
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33
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Convenient construction of spiro[indoline-3,5'-pyrrolo[3,4-c]carbazole] and spiro[indene-2,5'-pyrrolo[3,4-c]carbazole] via acid-catalyzed Diels-Alder reaction. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.08.052] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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34
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Xu JX, Chu KT, Chiang MH, Han JL. Organocatalytic asymmetric allylic alkylation of 2-methyl-3-nitroindoles: a route to direct enantioselective functionalization of indole C(sp 3)-H bonds. Org Biomol Chem 2021; 19:1503-1507. [PMID: 33533776 DOI: 10.1039/d1ob00048a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We here described a direct catalytic asymmetric functionalization of 2-methylindoles using organocatalysis. An efficient asymmetric allylic alkylation reaction with respect to 2-methyl-3-nitroindoles and racemic Morita-Baylis-Hillman carbonate has been achieved by using a chiral biscinchona alkaloid catalyst, which provided the functionalized indole derivatives in good yields and enantioselectivities.
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Affiliation(s)
- Jing-Xiang Xu
- Department of Chemistry, National Chung Hsing University, Taichung City, 40227, Taiwan, Republic of China.
| | - Kai-Ti Chu
- Institute of Chemistry, Academia Sinica, Taipei City, 11529, Taiwan, Republic of China
| | - Ming-Hsi Chiang
- Institute of Chemistry, Academia Sinica, Taipei City, 11529, Taiwan, Republic of China
| | - Jeng-Liang Han
- Department of Chemistry, National Chung Hsing University, Taichung City, 40227, Taiwan, Republic of China.
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35
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Skrzyńska A, Frankowski S, Topolska A, Dyguda M, Gao XY, Xu CJ, Chen YC, Albrecht Ł. Enantioselective H-bond-directed vinylogous iminium ion strategy for the functionalization of vinyl-substituted heteroaryl aldehydes. Chem Commun (Camb) 2021; 57:1667-1670. [PMID: 33464255 DOI: 10.1039/d0cc07765h] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work the first H-bond-directed vinylogous iminium ion strategy has been developed as a convenient strategy for the γ,δ-functionalization of vinyl-substituted heteroaromatic aldehydes. Their reaction with α-mercaptoketones proceeds in a cascade manner involving 1,6-addition followed by intramolecular aldol reaction. Excellent stereoselectivities have been obtained as a result of the H-bond interactions controlling the outcome of the cyclization step. The application of the strategy for the synthesis of tricyclic compounds bearing furan, tetrahydrothiophene and dihydropyran moieties has also been demonstrated.
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Affiliation(s)
- Anna Skrzyńska
- Institute of Organic Chemistry, Faculty of Chemistry, Lodz University of Technology, Żeromskiego 116, 90-924 Łódź, Poland.
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36
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Xu MH, Yuan YH, Liang DD, Zhang XM, Zhang FM, Tu YQ, Ma AJ, Zhang K, Peng JB. Remote asymmetric conjugate addition catalyzed by a bifunctional spiro-pyrrolidine-derived thiourea catalyst. Org Chem Front 2021. [DOI: 10.1039/d1qo00238d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A novel spiro-pyrrolidine (SPD)-derived bifunctional thiourea catalyst has been developed and used in a stereoselective conjugate addition of furfurals to β,γ-unsaturated α-ketoesters.
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Affiliation(s)
- Ming-Hui Xu
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Hai Yuan
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Dong-Dong Liang
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xiao-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
- School of Chemistry & Chemical Engineering
| | - Ai-Jun Ma
- School of Biotechnology and Health Science
- Wuyi University
- Jiangmen 529020
- P. R. China
| | - Kun Zhang
- School of Biotechnology and Health Science
- Wuyi University
- Jiangmen 529020
- P. R. China
| | - Jin-Bao Peng
- School of Biotechnology and Health Science
- Wuyi University
- Jiangmen 529020
- P. R. China
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37
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Tu MS, Chen KW, Wu P, Zhang YC, Liu XQ, Shi F. Advances in organocatalytic asymmetric reactions of vinylindoles: powerful access to enantioenriched indole derivatives. Org Chem Front 2021. [DOI: 10.1039/d0qo01643h] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review summarizes advances in vinylindole-based organocatalytic asymmetric reactions since 2008 and includes the applications of some methodologies in the total synthesis of natural products, points out remaining challenges in this research area.
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Affiliation(s)
- Man-Su Tu
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Ke-Wei Chen
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Ping Wu
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Yu-Chen Zhang
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Xiao-Qin Liu
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Feng Shi
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
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38
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Zhang M, Gong Y, Zhou W, Zhou Y, Liu XL. Recent advances of chromone-based reactants in the catalytic asymmetric domino annulation reaction. Org Chem Front 2021. [DOI: 10.1039/d1qo00269d] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chiral polycyclic chromanones are important heterocyclic frameworks that constitute the core structures of many natural products and bioactive molecules.
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Affiliation(s)
- Min Zhang
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
| | - Yi Gong
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
| | - Wei Zhou
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
| | - Ying Zhou
- College of Pharmaceutical Sciences
- Guizhou University of Chinese Medicine
- Guiyang
- P. R. China
| | - Xiong-Li Liu
- National & Local Joint Engineering Research Center for the Exploitation of Homology Resources of Southwest Medicine and Food
- Guizhou University
- Guiyang
- P. R. China
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39
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Wang Y, Cobo AA, Franz AK. Recent advances in organocatalytic asymmetric multicomponent cascade reactions for enantioselective synthesis of spirooxindoles. Org Chem Front 2021. [DOI: 10.1039/d1qo00220a] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Catalytic asymmetric MCCRs for enantioselective synthesis of spirooxindoles by using chiral phosphoric acids, amines, bifunctional thiourea/squaramides and metal-based reagents as catalysts.
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Affiliation(s)
- Yongchao Wang
- Colleage of Vocational and Technical Education
- Yunnan Normal University
- Kunming 650092
- P. R. China
| | - Angel A. Cobo
- Department of Chemistry
- University of California
- Davis
- USA
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40
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Abstract
This review summaries recent synthetic developments towards spirocyclic oxindoles and applications as valuable medicinal and synthetic targets.
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Affiliation(s)
- Alexander J. Boddy
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
| | - James A. Bull
- Department of Chemistry
- Imperial College London
- Molecular Sciences Research Hub
- London W12 0BZ
- UK
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41
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Guo M, Dong F, Yin X, Xu L, Wang L, Li SS. Facile syntheses of tetrahydroquinolines and 1,2-dihydroquinolines via vinylogous cascade hydride transfer/cyclization. Org Chem Front 2021. [DOI: 10.1039/d0qo01622e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The medicinally significant 3-monosubstituted tetrahydroquinolines and 1,2-dihydroquinolines were controllably constructed via redox-neutral vinylogous cascade condensation/[1,5]-hydride transfer/cyclization in EtOH.
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Affiliation(s)
- Mengzhu Guo
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Fengying Dong
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Xiangcong Yin
- Hematology Diagnosis Laboratory
- The Affiliated Hospital of Qingdao University
- Qingdao
- P. R. China
| | - Lubin Xu
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
| | - Liang Wang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
- College of Chemistry and Molecular Engineering
| | - Shuai-Shuai Li
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao 266109
- China
- College of Chemistry and Molecular Engineering
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42
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Zhan SC, Fang RJ, Yang RY, Zhao RF, Wang Y, Sun J, Yan CG. DDQ dehydrogenative Diels–Alder reaction for the synthesis of functionalized spiro[carbazole-1,3′-indolines] and spiro[carbazole-1,5′-pyrimidines]. NEW J CHEM 2021. [DOI: 10.1039/d1nj02836g] [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
Reactive 3-vinylindoles were generated by in situ DDQ oxidative dehydrogenation of 3-(indol-3-yl)-1,3-diphenylpropan-1-ones, and underwent sequential Diels–Alder reaction to give novel heterocyclic spirocarbazoles.
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Affiliation(s)
- Shao-Cong Zhan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ren-Jie Fang
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ren-Yin Yang
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ru-Fang Zhao
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Yang Wang
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jing Sun
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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43
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Lu JB, Shi CH, Hu D, Gao XY, Chen ZC, Du W, Chen YC. Regioselectivity Umpolung in Asymmetric Diels–Alder Reaction of ortho-Formyl-Substituted Cinnamates and Dienals via Double Aminocatalysis. Org Lett 2020; 23:145-149. [PMID: 33326232 DOI: 10.1021/acs.orglett.0c03862] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jian-Bin Lu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Chong-Hui Shi
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Di Hu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xin-Yue Gao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Zhi-Chao Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Wei Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ying-Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
- College of Pharmacy, Third Military Medical University, Shapingba, Chongqing 400038, China
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44
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Liu D, Cao J, Sun J, Liu RZ, Yan CG. Convergent Synthesis of Triindanone-Fused Spiro[bicyclo[2.2.2]octane-2,3′-indolines] via Domino Reaction of 1,3-Indanedione and 3-Methyleneoxindoles. Org Lett 2020; 22:8931-8936. [DOI: 10.1021/acs.orglett.0c03331] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Dan Liu
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jun Cao
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jing Sun
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ru-Zhang Liu
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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45
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Curti C, Rassu G, Lombardo M, Zambrano V, Pinna L, Battistini L, Sartori A, Pelosi G, Zanardi F. Unlocking Access to Enantiopure Fused Uracils by Chemodivergent [4+2] Cross-Cycloadditions: DFT-Supported Homo-Synergistic Organocatalytic Approach. Angew Chem Int Ed Engl 2020; 59:20055-20064. [PMID: 32678935 DOI: 10.1002/anie.202007509] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/13/2020] [Indexed: 01/10/2023]
Abstract
The discovery of chemical methods enabling the construction of carbocycle-fused uracils which embody a three-dimensional and functional-group-rich architecture is a useful tool in medicinal chemistry oriented synthesis. In this work, an unprecedented amine-catalyzed [4+2] cross-cycloaddition is documented; it involves remotely enolizable 6-methyluracil-5-carbaldehydes and β-aryl enals, and chemoselectively produces two novel bicyclic and tricyclic fused uracil chemotypes in good yields with a maximum level of enantiocontrol. In-depth mechanistic investigations and control experiments support an intriguing homo-synergistic organocatalytic approach, where the same amine organocatalyst concomitantly engages both aldehyde partners in a stepwise eliminative [4+2] cycloaddition, whose vinylogous iminium ion intermediate product may diverge-depending upon conditions-to either bicyclic targets by hydrolysis or tricyclic products by a second homo-synergistic trienamine-mediated stepwise [4+2] cycloaddition.
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Affiliation(s)
- Claudio Curti
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parco Area delle Scienze 27A, 43124, Parma, Italy
| | - Gloria Rassu
- Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Traversa La Crucca 3, 07100, Li Punti Sassari, Italy
| | - Marco Lombardo
- Dipartimento di Chimica "Giacomo Ciamician", Università di Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - Vincenzo Zambrano
- Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche, Traversa La Crucca 3, 07100, Li Punti Sassari, Italy
| | - Luigi Pinna
- Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna 2, 07100, Sassari, Italy
| | - Lucia Battistini
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parco Area delle Scienze 27A, 43124, Parma, Italy
| | - Andrea Sartori
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parco Area delle Scienze 27A, 43124, Parma, Italy
| | - Giorgio Pelosi
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale, Università di Parma, Parco Area delle Scienze 17A, 43124, Parma, Italy
| | - Franca Zanardi
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parco Area delle Scienze 27A, 43124, Parma, Italy
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46
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Mukherjee S, Biswas B. Organo‐Cascade Catalysis: Application of Merged Iminium‐Enamine Activation Technique and Related Cascade Reactivities. ChemistrySelect 2020. [DOI: 10.1002/slct.202003070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Shirshendu Mukherjee
- Department of Chemistry Hooghly Mohsin Govt. College Hooghly 712101, West Bengal India
| | - Bhaskar Biswas
- Department of Chemistry University of North Bengal Siliguri Darjeeling 734013, West Bengal India
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47
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Curti C, Rassu G, Lombardo M, Zambrano V, Pinna L, Battistini L, Sartori A, Pelosi G, Zanardi F. Unlocking Access to Enantiopure Fused Uracils by Chemodivergent [4+2] Cross‐Cycloadditions: DFT‐Supported Homo‐Synergistic Organocatalytic Approach. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202007509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Claudio Curti
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27A 43124 Parma Italy
| | - Gloria Rassu
- Istituto di Chimica Biomolecolare Consiglio Nazionale delle Ricerche Traversa La Crucca 3 07100 Li Punti Sassari Italy
| | - Marco Lombardo
- Dipartimento di Chimica “Giacomo Ciamician” Università di Bologna Via Selmi 2 40126 Bologna Italy
| | - Vincenzo Zambrano
- Istituto di Chimica Biomolecolare Consiglio Nazionale delle Ricerche Traversa La Crucca 3 07100 Li Punti Sassari Italy
| | - Luigi Pinna
- Dipartimento di Chimica e Farmacia Università di Sassari Via Vienna 2 07100 Sassari Italy
| | - Lucia Battistini
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27A 43124 Parma Italy
| | - Andrea Sartori
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27A 43124 Parma Italy
| | - Giorgio Pelosi
- Dipartimento di Scienze Chimiche, della Vita e della Sostenibilità Ambientale Università di Parma Parco Area delle Scienze 17A 43124 Parma Italy
| | - Franca Zanardi
- Dipartimento di Scienze degli Alimenti e del Farmaco Università di Parma Parco Area delle Scienze 27A 43124 Parma Italy
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48
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Chen J, Fu Y, Yu Y, Wang JR, Guo YW, Li H, Wang W. Enantioselective [4 + 2] Cycloaddition Reaction of Vinylquinolines with Dienals Enabled by Synergistic Organocatalysis. Org Lett 2020; 22:6061-6066. [PMID: 32663018 DOI: 10.1021/acs.orglett.0c02137] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
An unprecedented organocatalytic enantioselective [4 + 2] cycloaddition reaction of vinyl quinolines with dienals is achieved with the synergistic activation of CH3SO3H and a chiral aminocatalyst. The power of the process is demonstrated by its high efficiency of the production of new synthetically and biologically valued chiral quinoline architectures in high yields and with excellent enantioselectivities.
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Affiliation(s)
- Jing Chen
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.,State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Yiwei Fu
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yang Yu
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jian-Rong Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Hao Li
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wei Wang
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.,Departments of Pharmacology & Toxicology and Chemistry & Biochemistry University of Arizona, Tucson, Arizona 85721, United States
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49
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Pawar TJ, Mitkari SB, Peña‐Cabrera E, Villegas Gómez C, Cruz Cruz D. Polyenals and Polyenones in Aminocatalysis: A Decade Building Complex Frameworks from Simple Blocks. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000570] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tushar Janardan Pawar
- Departamento de Química División de Ciencias Naturales y Exactas Universidad de Guanajuato Noria Alta S/N 36050 Guanajuato Gto México
| | - Suhas Balasaheb Mitkari
- Departamento de Química División de Ciencias Naturales y Exactas Universidad de Guanajuato Noria Alta S/N 36050 Guanajuato Gto México
| | - Eduardo Peña‐Cabrera
- Departamento de Química División de Ciencias Naturales y Exactas Universidad de Guanajuato Noria Alta S/N 36050 Guanajuato Gto México
| | - Clarisa Villegas Gómez
- Departamento de Química División de Ciencias Naturales y Exactas Universidad de Guanajuato Noria Alta S/N 36050 Guanajuato Gto México
| | - David Cruz Cruz
- Departamento de Química División de Ciencias Naturales y Exactas Universidad de Guanajuato Noria Alta S/N 36050 Guanajuato Gto México
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50
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Sansinenea E, Martínez EF, Ortiz A. Organocatalytic Synthesis of Chiral Spirooxindoles with Quaternary Stereogenic Centers. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000470] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Estibaliz Sansinenea
- Facultad de Ciencias Químicas Benemérita Universidad Autónoma de Puebla Puebla México
| | | | - Aurelio Ortiz
- Facultad de Ciencias Químicas Benemérita Universidad Autónoma de Puebla Puebla México
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