1
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Vázquez-Galiñanes N, Sciortino G, Piñeiro-Suárez M, Tóth BL, Maseras F, Fañanás-Mastral M. Switching Selectivity in Borylative Allyl-Allyl Cross-Coupling through Synergistic Catalysis. J Am Chem Soc 2024; 146:21977-21988. [PMID: 39046799 PMCID: PMC11311230 DOI: 10.1021/jacs.4c07188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 07/09/2024] [Accepted: 07/17/2024] [Indexed: 07/27/2024]
Abstract
A Cu/Pd-catalyzed borylative coupling of allenes with allyl carbonates is reported. Synergistic Cu/Pd catalysis enables a divergent selectivity compared to Cu catalysis and allows for the regio-, diastereo-, and enantioselective formation of synthetically versatile chiral borylated 1,5-dienes featuring two adjacent tertiary stereocenters. DFT calculations support a closed inner-sphere SE2' transmetalation between the catalytic allyl copper and allyl palladium intermediates and point at the reductive elimination of the resulting bis(allyl)Pd intermediate as the regio- and diastereo-determining step.
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Affiliation(s)
- Nuria Vázquez-Galiñanes
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS), Universidade
de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Giuseppe Sciortino
- Institute
of Chemical Research of Catalonia (ICIQ-CERCA), The Barcelona Institute of Science and Technology, Avgda, Països Catalans 16, 43007 Tarragona, Spain
| | - Martín Piñeiro-Suárez
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS), Universidade
de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Balázs L. Tóth
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS), Universidade
de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Feliu Maseras
- Institute
of Chemical Research of Catalonia (ICIQ-CERCA), The Barcelona Institute of Science and Technology, Avgda, Països Catalans 16, 43007 Tarragona, Spain
| | - Martín Fañanás-Mastral
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS), Universidade
de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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2
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Hirano M, Kiyota S. Ru(0)-catalysed synthesis of borylated polyene building blocks by cross-dimerisation toward cross-coupling. Chem Commun (Camb) 2024; 60:7672-7686. [PMID: 38962873 DOI: 10.1039/d4cc02566k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Conjugated and non-conjugated polyenes are important substructures and are often found in biologically active compounds and natural products. Their preparation often needs multiple steps or iterative reactions and as a result, they have poor step economies. In this feature article, we show a new methodology to prepare these substructures by combinations of cross-dimerisation giving borylated polyenes and subsequent cross-coupling reactions. This divergent reaction strategy allows for the opportunity to access many bioactive compounds and natural products as well as some electronic materials.
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Affiliation(s)
- Masafumi Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
| | - Sayori Kiyota
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan.
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3
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Dominguez-Molano P, Solé-Daura A, Carbó JJ, Fernández E. Remote 1,4-Carbon-to-Carbon Boryl Migration: From a Mechanistic Challenge to a Valuable Synthetic Application of Bicycles. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309779. [PMID: 38361396 DOI: 10.1002/advs.202309779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/25/2024] [Indexed: 02/17/2024]
Abstract
The present paper reports a remote carbon-to-carbon boryl migration via an intramolecular 1,4-B/Cu shift, which establishes an in situ stereospecific electrophilic trap on the alkene moiety. The synthetic application is developed to prepare functionalized cyclopentenes by means of a palladium-catalyzed regioselective intramolecular coupling that completes a strategic cyclopropanation and generates valuable structural bicyclic systems. The mechanism is characterized by DFT (density functional theory) calculations which showed that the 1,4-migration proceeds through an intramolecular, nucleophilic attack of the copper-alkyl moiety on the boron atom bonded to the C(sp2), leading to a 5-membered boracycle structure. The computation of the 1,3- and 1,4-B/Cu shifts is also compared as is the impact of the endo- or exocyclic alkene on the reaction kinetics.
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Affiliation(s)
- Paula Dominguez-Molano
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Tarragona, 43007, Spain
| | - Albert Solé-Daura
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Tarragona, 43007, Spain
| | - Jorge J Carbó
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Tarragona, 43007, Spain
| | - Elena Fernández
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Tarragona, 43007, Spain
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4
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Zeng HH, Wang YQ, He YY, Zhong XL, Li H, Ma AJ, Peng JB. Cooperative Cu/Pd-Catalyzed 1,5-Boroacylation of Cyclopropyl-Substituted Alkylidenecyclopropanes. J Org Chem 2024; 89:2637-2648. [PMID: 38277477 DOI: 10.1021/acs.joc.3c02670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
A Cu/Pd-cocatalyzed 1,5-boroacylation of cyclopropyl-substituted ACPs with B2pin2 and acid chlorides has been developed. Using cyclopropyl-substituted ACPs as the starting material, a broad range of 1,5-boroacylated products with multiple functional groups was prepared in good yields with excellent regio- and stereoselectively. Both aromatic and aliphatic acid chlorides were tolerated in this reaction.
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Affiliation(s)
- Hui-Hui Zeng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Yu-Qing Wang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Yong-Yu He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Xiao-Ling Zhong
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Hongguang Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
- Guangdong Provincial Key Laboratory of Large Animal Models for Biomedicine, Wuyi University, Jiangmen 529020, P. R. China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
| | - Jin-Bao Peng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong 529020, P. R. China
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5
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Corpas J, Gomez-Mendoza M, Arpa EM, de la Peña
O'Shea VA, Durbeej B, Carretero JC, Mauleón P, Arrayás R. Iterative Dual-Metal and Energy Transfer Catalysis Enables Stereodivergence in Alkyne Difunctionalization: Carboboration as Case Study. ACS Catal 2023; 13:14914-14927. [PMID: 38026817 PMCID: PMC10662505 DOI: 10.1021/acscatal.3c03570] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/04/2023] [Indexed: 12/01/2023]
Abstract
Stereochemically defined tetrasubstituted olefins are widespread structural elements of organic molecules and key intermediates in organic synthesis. However, flexible methods enabling stereodivergent access to E and Z isomers of fully substituted alkenes from a common precursor represent a significant challenge and are actively sought after in catalysis, especially those amenable to complex multifunctional molecules. Herein, we demonstrate that iterative dual-metal and energy transfer catalysis constitutes a unique platform for achieving stereodivergence in the difunctionalization of internal alkynes. The utility of this approach is showcased by the stereodivergent synthesis of both stereoisomers of tetrasubstituted β-boryl acrylates from internal alkynoates with excellent stereocontrol via sequential carboboration and photoisomerization. The reluctance of electron-deficient internal alkynes to undergo catalytic carboboration has been overcome through cooperative Cu/Pd-catalysis, whereas an Ir complex was identified as a versatile sensitizer that is able to photoisomerize the resulting sterically crowded alkenes. Mechanistic studies by means of quantum-chemical calculations, quenching experiments, and transient absorption spectroscopy have been applied to unveil the mechanism of both steps.
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Affiliation(s)
- Javier Corpas
- Department of Organic Chemistry, Faculty of Science;
Institute for Advanced Research in Chemical Sciences (IAdChem); and Centro de
Innovación en Química Avanzada (ORFEO−CINQA),
Universidad Autónoma de Madrid (UAM), Cantoblanco,
28049 Madrid, Spain
| | - Miguel Gomez-Mendoza
- Photoactivated Processes Unit, IMDEA
Energy Institute, Technological Park of Mostoles, Avda. Ramón de la
Sagra 3, 28935 Madrid, Spain
| | - Enrique M. Arpa
- Division of Theoretical Chemistry, IFM,
Linköping University, 581 83 Linköping,
Sweden
| | - Víctor A. de la Peña
O'Shea
- Photoactivated Processes Unit, IMDEA
Energy Institute, Technological Park of Mostoles, Avda. Ramón de la
Sagra 3, 28935 Madrid, Spain
| | - Bo Durbeej
- Division of Theoretical Chemistry, IFM,
Linköping University, 581 83 Linköping,
Sweden
| | - Juan C. Carretero
- Department of Organic Chemistry, Faculty of Science;
Institute for Advanced Research in Chemical Sciences (IAdChem); and Centro de
Innovación en Química Avanzada (ORFEO−CINQA),
Universidad Autónoma de Madrid (UAM), Cantoblanco,
28049 Madrid, Spain
| | - Pablo Mauleón
- Department of Organic Chemistry, Faculty of Science;
Institute for Advanced Research in Chemical Sciences (IAdChem); and Centro de
Innovación en Química Avanzada (ORFEO−CINQA),
Universidad Autónoma de Madrid (UAM), Cantoblanco,
28049 Madrid, Spain
| | - Ramón
Gómez Arrayás
- Department of Organic Chemistry, Faculty of Science;
Institute for Advanced Research in Chemical Sciences (IAdChem); and Centro de
Innovación en Química Avanzada (ORFEO−CINQA),
Universidad Autónoma de Madrid (UAM), Cantoblanco,
28049 Madrid, Spain
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6
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Qin J, Zhang Z, Lu Y, Zhu S, Chu L. Divergent 1,2-carboallylation of terminal alkynes enabled by metallaphotoredox catalysis with switchable triplet energy transfer. Chem Sci 2023; 14:12143-12151. [PMID: 37969584 PMCID: PMC10631246 DOI: 10.1039/d3sc04645a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Accepted: 10/11/2023] [Indexed: 11/17/2023] Open
Abstract
We report a metallaphotoredox strategy for stereodivergent three-component carboallylation of terminal alkynes with allylic carbonates and alkyl trifluoroborates. This redox-neutral dual catalytic protocol utilizes commercially available organic photocatalyst 4CzIPN and nickel catalysts to trigger a radical addition/alkenyl-allyl coupling sequence, enabling straightforward access to functionalized 1,4-dienes in a highly chemo-, regio-selective, and stereodivergent fashion. This reaction features a broad substrate generality and a tunable triplet energy transfer control with pyrene as a simple triplet energy modulator, offering a facile synthesis of complex trans- and cis-selective skipped dienes with the same set of readily available substrates.
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Affiliation(s)
- Jian Qin
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering, Center for Advanced Low-Dimension Materials, Donghua University Shanghai 201620 China
| | - Zhuzhu Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering, Center for Advanced Low-Dimension Materials, Donghua University Shanghai 201620 China
| | - Yi Lu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering, Center for Advanced Low-Dimension Materials, Donghua University Shanghai 201620 China
| | - Shengqing Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering, Center for Advanced Low-Dimension Materials, Donghua University Shanghai 201620 China
| | - Lingling Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry and Chemical Engineering, Center for Advanced Low-Dimension Materials, Donghua University Shanghai 201620 China
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7
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Chaves-Pouso A, Rivera-Chao E, Fañanás-Mastral M. Catalytic Alkyne Allylboration: A Quest for Selectivity. ACS Catal 2023; 13:12656-12664. [PMID: 37822858 PMCID: PMC10563124 DOI: 10.1021/acscatal.3c03015] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 08/29/2023] [Indexed: 10/13/2023]
Abstract
Catalytic methodologies that enable the synthesis of complex organic molecules from simple and readily available starting materials represent a goal in modern synthetic chemistry. In particular, multicomponent carboboration reactions that provide stereoselective access to densely functionalized building blocks are particularly valuable to achieve molecular diversity. This Perspective covers the developments in the area of catalytic allylboration of alkynes and highlights the key features that have allowed for the control of the regio-, diastereo-, and enantioselectivity in these transformations.
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Affiliation(s)
- Andrea Chaves-Pouso
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS), Universidade
de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Eva Rivera-Chao
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS), Universidade
de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Martín Fañanás-Mastral
- Centro
Singular de Investigación en Química Biolóxica
e Materiais Moleculares (CiQUS), Universidade
de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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8
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Liu S, Qian YS, Xu JL, Xu L, Xu YH. Copper-Catalyzed Regio- and Stereoselective Three-Component Coupling of Allenyl Ethers with gem-Dichlorocyclobutenones and B 2pin 2. Org Lett 2023. [PMID: 37289963 DOI: 10.1021/acs.orglett.3c01515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The three-component coupling method for regio- and stereoselective difunctionalization of allenes with allenyl ethers, bis(pinacolato)diboron, and gem-dichlorocyclobutenones as electrophiles was reported, yielding a variety of highly functionalized cyclobutenone products tethering with an alkenylborate fragment. The polysubstituted cyclobutenone products also underwent diverse transformations.
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Affiliation(s)
- Shuai Liu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yi-Sen Qian
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Jian-Lin Xu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Lei Xu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
| | - Yun-He Xu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China
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9
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Souza JPA, Bandeira PT, Bergmann J, Zarbin PHG. Recent advances in the synthesis of insect pheromones: an overview from 2013 to 2022. Nat Prod Rep 2023; 40:866-889. [PMID: 36820746 DOI: 10.1039/d2np00068g] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Covering: 2013 to June 2022Pheromones are usually produced by insects in sub-microgram amounts, which prevents the elucidation of their structures by nuclear magnetic resonance (NMR). Instead, a synthetic reference material is needed to confirm the structure of the natural compounds. In addition, the provision of synthetic pheromones enables large-scale field trials for the development of environmentally friendly pest management tools. Because of these potential applications in pest control, insect pheromones are attractive targets for the development of synthetic procedures and the synthesis of these intraspecific chemical messengers has been at the core of numerous research efforts in the field of pheromone chemistry. The present review is a quick reference guide for the syntheses of insect pheromones published from 2013 to mid-2022, listing the synthesized compounds and highlighting current methodologies in organic synthesis, such as carbon-carbon coupling reactions, organo-transition metal chemistry including ring-closing olefin metathesis, asymmetric epoxidations and dihydroxylations, and enzymatic reactions.
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Affiliation(s)
- João P A Souza
- Laboratório de Semioquímicos, Departamento de Química, Universidade Federal do Paraná, UFPR, Caixa Postal 19020, Curitiba 81531-990, PR, Brazil.
| | - Pamela T Bandeira
- Laboratório de Semioquímicos, Departamento de Química, Universidade Federal do Paraná, UFPR, Caixa Postal 19020, Curitiba 81531-990, PR, Brazil. .,Departamento de Química, Universidade Federal de Santa Maria, Avda. Roraima, 1000, Santa Maria, RS, Brazil
| | - Jan Bergmann
- Instituto de Química, Pontificia Universidad Católica de Valparaíso, Avda. Universidad 330, Valparaíso, Chile.
| | - Paulo H G Zarbin
- Laboratório de Semioquímicos, Departamento de Química, Universidade Federal do Paraná, UFPR, Caixa Postal 19020, Curitiba 81531-990, PR, Brazil.
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10
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Wang Z, Lamine W, Miqueu K, Liu SY. A syn outer-sphere oxidative addition: the reaction mechanism in Pd/Senphos-catalyzed carboboration of 1,3-enynes. Chem Sci 2023; 14:2082-2090. [PMID: 36845936 PMCID: PMC9945512 DOI: 10.1039/d2sc05828f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 01/04/2023] [Indexed: 01/19/2023] Open
Abstract
We report a combined experimental and computational study of Pd/Senphos-catalyzed carboboration of 1,3-enynes utilizing DFT calculations, 31P NMR study, kinetic study, Hammett analysis and Arrhenius/Eyring analysis. Our mechanistic study provides evidence against the conventional inner-sphere β-migratory insertion mechanism. Instead, a syn outer-sphere oxidative addition mechanism featuring a Pd-π-allyl intermediate followed by coordination-assisted rearrangements is consistent with all the experimental observations.
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Affiliation(s)
- Ziyong Wang
- Department of Chemistry, Boston College Chestnut Hill Massachusetts 02467-3860 USA
| | - Walid Lamine
- Université de Pau et des Pays de l'Adour, E2S UPPA/CNRS, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux IPREM UMR 5254 Hélioparc, 2 Avenue P. Angot 64053 Pau Cedex 09 France
| | - Karinne Miqueu
- Université de Pau et des Pays de l'Adour, E2S UPPA/CNRS, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux IPREM UMR 5254 Hélioparc, 2 Avenue P. Angot 64053 Pau Cedex 09 France
| | - Shih-Yuan Liu
- Department of Chemistry, Boston College Chestnut Hill Massachusetts 02467-3860 USA
- Université de Pau et des Pays de l'Adour, E2S UPPA/CNRS, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux IPREM UMR 5254 Hélioparc, 2 Avenue P. Angot 64053 Pau Cedex 09 France
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11
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Pradhan TR, Kyoon Park J. Chemoselective Coupling of π-Systems to Access Metallated 1,4- or 1,5-Skipped Dienes in Multicomponent Reactions. Chemistry 2022; 28:e202202120. [PMID: 36094297 DOI: 10.1002/chem.202202120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Indexed: 12/14/2022]
Abstract
Integrating distinct unsaturated C-C systems while simultaneously installing metallic groups has been significantly challenging to execute in a multicomponent reaction. Therefore, designing a suitable mechanistic pathway that provides the required reactivity and selectivity for target C-C bonds with metallic reagents to ensure successful coupling is the key to success. Copper-catalyzed borylallylation and silylallylation have emerged as the most efficient strategies for assembling borylated/silylated skipped (1,4 or 1,5) dienes by catalytically combining an organocopper intermediate with allyl electrophiles. However, reactions involving interelemental reagents (e. g., [Si]-[B]) to accomplish intermolecular atom-economic couplings have not been studied thoroughly. Therefore, to aid the development of new transformations in this research area, this article attempts to include all precedents, including recent studies by the authors. The present Concept article may be helpful for researchers working in this area as it provides a basic conceptual framework.
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Affiliation(s)
- Tapas R Pradhan
- Department of Chemistry, Chemistry Institute for Functional Materials, Pusan National University, 46241, Busan, Korea
| | - Jin Kyoon Park
- Department of Chemistry, Chemistry Institute for Functional Materials, Pusan National University, 46241, Busan, Korea
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12
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Li X, Li Y, Shu J, Fu X, Wu L, Shi T, Hu W. Rh 2(Ph 3COO) 3(OAc)/Chiral Phosphoric Acid Cocatalyzed N-Alkyl Imines-Involved Multicomponent Reactions Yielding N-(Anthrancen-9-ylmethyl) Isoserines as Drug Intermediates. Org Lett 2022; 24:8633-8638. [DOI: 10.1021/acs.orglett.2c03368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Xinglin Li
- Guangdong Chiral Drug Engineering Laboratory, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Yukai Li
- Guangdong Chiral Drug Engineering Laboratory, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jirong Shu
- Guangdong Chiral Drug Engineering Laboratory, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Xiang Fu
- Guangdong Chiral Drug Engineering Laboratory, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Linna Wu
- Guangdong Chiral Drug Engineering Laboratory, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Taoda Shi
- Guangdong Chiral Drug Engineering Laboratory, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Wenhao Hu
- Guangdong Chiral Drug Engineering Laboratory, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
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13
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Liu SN, Liu JB, Huang F, Wang WJ, Wang Q, Yang C, Sun QM, Chen DZ. Origins of Stereospecificity and Divergent Reactivity of Pd-Catalyzed Cross Coupling with α,α-Disubstituted Alkenyl Hydrazones. J Org Chem 2022; 87:15608-15617. [PMID: 36321171 DOI: 10.1021/acs.joc.2c02188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This article presents an exploration of stereospecificity and divergent reactivity of Pd-catalyzed α,α-disubstituted alkenyl hydrazones to synthesize 1,4-dienes in the Z configuration and vinylcyclopropane. We calculated the energy profiles of four α,α-disubstituted alkenyl hydrazones. The results show that the energy profiles of the whole catalytic cycle are basically the same before the syn-carbopalladation step. Subsequent syn-β-C elimination yields skipping dienes, or direct β-H elimination yields vinylcyclopropane. Current theoretical calculations reveal that the stereospecificity and the divergent reactivity of reactions result from the competition between syn-β-C elimination and β-H elimination. The C-C bond rotation and subsequent syn-β-C elimination step control the stereospecificity of the reaction by changing the olefin stereostructure from E to Z configuration. The steric factor of α-substituted groups mediates the transformation between syn-β-C elimination and β-H elimination. The results are of great significance for the scientific design of substrates to achieve accurate synthesis of target products.
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Affiliation(s)
- Sheng-Nan Liu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China
| | - Jian-Biao Liu
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China
| | - Fang Huang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China
| | - Wen-Juan Wang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China
| | - Qiong Wang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China
| | - Chong Yang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China
| | - Qing-Min Sun
- Shandong Kaisheng New Materials Co., Ltd., Zibo 255185, P. R. China
| | - De-Zhan Chen
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China
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14
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Vázquez-Galiñanes N, Velo-Heleno I, Fañanás-Mastral M. Bifunctional Skipped Dienes through Cu/Pd-Catalyzed Allylboration of Alkynes with B 2pin 2 and Vinyl Epoxides. Org Lett 2022; 24:8244-8248. [DOI: 10.1021/acs.orglett.2c03390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Nuria Vázquez-Galiñanes
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Isabel Velo-Heleno
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Martín Fañanás-Mastral
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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15
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Pujol M, Maza RJ, Salvado O, Carbó JJ, Fernández E. Site-Selective (Z)-α-Borylalkenyl Copper Systems for Nucleophilic Stereodefined Allylic Coupling. Angew Chem Int Ed Engl 2022; 61:e202208495. [PMID: 35857816 PMCID: PMC9540588 DOI: 10.1002/anie.202208495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Indexed: 11/09/2022]
Abstract
1,1-Diborylalkenes can be transformed into (Z)-skipped dienes through CuI -phosphine catalyzed allylic coupling reactions. The energetically preferred formation of (Z)-α-borylalkenyl copper (I) species and the subsequent nucleophilic attack, explains the stereoselective nucleophilic substitution with allyl bromides. The eventual treatment of (Z)-skipped dienes with NaOt Bu promotes cyclization/aromatization patterns via enyne intermediates.
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Affiliation(s)
- Mireia Pujol
- Department Química Física i InorgànicaUniversitat Rovira i Virgili43007TarragonaSpain
| | - Ricardo J. Maza
- Department Química Física i InorgànicaUniversitat Rovira i Virgili43007TarragonaSpain
| | - Oriol Salvado
- Department Química Física i InorgànicaUniversitat Rovira i Virgili43007TarragonaSpain
| | - Jorge J. Carbó
- Department Química Física i InorgànicaUniversitat Rovira i Virgili43007TarragonaSpain
| | - Elena Fernández
- Department Química Física i InorgànicaUniversitat Rovira i Virgili43007TarragonaSpain
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16
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Xu WY, Li YJ, Gong TJ, Fu Y. Synthesis of gem-Difluorinated 1,3-Dienes via Synergistic Cu/Pd-Catalyzed Borodifluorovinylation of Alkynes. Org Lett 2022; 24:5884-5889. [PMID: 35926100 DOI: 10.1021/acs.orglett.2c01875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
gem-Difluoroalkenes (=CF2), which normally act as metabolically stable bioisosteres for carbonyl groups (C═O), are widely applied in agrochemicals and pharmaceuticals and are also used as building blocks in organic synthesis. Herein, an example of Cu/Pd-catalyzed borodifluorovinylation was achieved using alkynes, difluoroethylene bromide, and B2pin2 as chemical feedstocks, providing the corresponding conjugated gem-difluoroalkene scaffold with good functional group compatibility. Moreover, an array of fluorinated synthons can be obtained through further transformations.
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Affiliation(s)
- Wen-Yan Xu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Yu-Jie Li
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Tian-Jun Gong
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui 230031, People's Republic of China
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17
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Ravi Kishore D, Sreenivasulu C, Satyanarayana G, Dapkekar AB. Recent Applications on Dual-Catalysis for C–C and C–X Cross-Coupling Reactions. SYNOPEN 2022. [DOI: 10.1055/a-1896-4168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
AbstractCoupling reactions stand amid the most significant reactions in synthetic organic chemistry. Of late, these coupling strategies are being viewed as a versatile synthetic tool for a wide range of organic transformations in many sectors of chemistry, ranging from indispensable synthetic scaffolds and natural products of biological significance to novel organic materials. Further, the use of dual-catalysis in accomplishing various interesting cross-coupling transformations is an emerging field in synthetic organic chemistry, owing to their high catalytic performance rather than the use of a single catalyst. In recent years, synthetic organic chemists have given considerable attention to hetero-dual catalysis; wherein these catalytic systems have been employed for the construction of versatile carbon–carbon [C(sp
3)–C(sp
3), C(sp
3)–C(sp
2), C(sp
2)–C(sp
2)] and carbon–heteroatom (C–N, C–O, C–P, C–S) bonds. Therefore, in this mini-review, we are emphasizing recently developed various cross-coupling reactions catalysed by transition-metal dual-catalysis (i.e., using palladium and copper catalysts, but omitting the reports on photoredox/metal catalysis).1 Introduction2 Cu/Pd-Catalysed Bond Formation2.1 Pd/Cu-Catalysed C(sp
3)–C(sp
2) Bond Formation2.2 Pd/Cu-Catalysed C(sp
2)–C(sp
2) Bond Formation2.3 Pd/Cu-Catalysed C(sp)–C(sp
2) Bond Formation2.4 Pd/Cu-Catalysed C(sp
3)–C(sp
3) Bond Formation2.5 Pd/Cu-Catalysed C–X (X = B, N, P, S, Si) Bond Formation3 Conclusion
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18
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Pujol M, Maza RJ, Salvado O, Carbó JJ, Fernandez E. Site‐Selective (Z)‐α‐Borylalkenyl Copper Systems for Nucleophilic Stereodefined Allylic Coupling. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208495] [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]
Affiliation(s)
- Mireia Pujol
- Universitat Rovira i Virgili Química Física i Inorganica SPAIN
| | - Ricardo J. Maza
- Universitat Rovira i Virgili Química Física i Inorganica SPAIN
| | - Oriol Salvado
- Universitat Rovira i Virgili Química Física i Inorganica SPAIN
| | - Jorge J. Carbó
- Universitat Rovira i Virgili Química Física i Inorganica SPAIN
| | - Elena Fernandez
- University Rovira i Virgili Química Física i Inorgànica C/Marcelli Dominso s/n 43007 Tarragona SPAIN
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19
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Altarejos J, Valero A, Manzano R, Carreras J. Synthesis of Tri‐ and Tetrasubstituted Alkenyl Boronates from Alkynes. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Julia Altarejos
- Universidad de Alcalá Facultad de Ciencias: Universidad de Alcala Facultad de Ciencias Química Orgánica y Química Inorgánica SPAIN
| | - Antonio Valero
- Universidad de Alcalá Facultad de Ciencias: Universidad de Alcala Facultad de Ciencias Química Orgánica y Química Inorgánica SPAIN
| | - Rubén Manzano
- Universidad de Alcalá Facultad de Ciencias: Universidad de Alcala Facultad de Ciencias Química Orgánica y Química Inorgánica SPAIN
| | - Javier Carreras
- Universidad de Alcalá Facultad de Ciencias: Universidad de Alcala Facultad de Ciencias Química Orgánica y Química Inorgánica Carretera Madrid-Barcelona km 33,6, Campus Universitario.Facultad de Farmacia 28805 Alcalá de Henares SPAIN
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20
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Chaves-Pouso A, Álvarez-Constantino AM, Fañanás-Mastral M. Enantio- and Diastereoselective Copper-Catalyzed Allylboration of Alkynes with Allylic gem-Dichlorides. Angew Chem Int Ed Engl 2022; 61:e202117696. [PMID: 35263483 PMCID: PMC9314970 DOI: 10.1002/anie.202117696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Indexed: 11/06/2022]
Abstract
Allylic gem-dichlorides are shown to be efficient substrates for catalytic asymmetric allylboration of alkynes. The method employs a chiral NHC-Cu catalyst capable of generating in a single step chiral skipped dienes bearing a Z-alkenyl chloride, a trisubstituted E-alkenyl boronate and a bis-allylic stereocenter with excellent levels of chemo-, regio- enantio- and diastereoselectivity. This high degree of functionalization makes these products versatile building blocks as illustrated with the synthesis of several optically active compounds. DFT calculations support the key presence of a metal cation bridge ligand-substrate interaction and account for the stereoselectivity outcome.
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Affiliation(s)
- Andrea Chaves-Pouso
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Andrés M Álvarez-Constantino
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Martín Fañanás-Mastral
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
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21
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Gao Y, Kim N, Mendoza SD, Yazdani S, Faria Vieira A, Liu M, Kendrick A, Grotjahn DB, Bertrand G, Jazzar R, Engle KM. (CAAC)Copper Catalysis Enables Regioselective Three-Component Carboboration of Terminal Alkynes. ACS Catal 2022; 12:7243-7247. [PMID: 37143933 PMCID: PMC10153597 DOI: 10.1021/acscatal.2c00614] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cyclic(alkyl)(amino)carbene (CAAC) ligands are found to perturb regioselectivity of the copper-catalyzed carboboration of terminal alkynes, favoring the less commonly observed internal alkenylboron regiosomer through an α-selective borylcupration step. A variety of carbon electrophiles participate in the reaction, including allyl alcohols derivatives and alkyl halides. The method provides a straightforward and selective route to versatile tri-substituted alkenylboron compounds that are otherwise challenging to access.
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Affiliation(s)
- Yang Gao
- Department of Chemistry, The Scripps Research Institute, 10550 N Torrey Pines Road, La Jolla, California 92037, United States
| | - Nana Kim
- Department of Chemistry, The Scripps Research Institute, 10550 N Torrey Pines Road, La Jolla, California 92037, United States
| | - Skyler D. Mendoza
- Department of Chemistry, The Scripps Research Institute, 10550 N Torrey Pines Road, La Jolla, California 92037, United States
| | - Sima Yazdani
- UCSD-CNRS Joint Research Laboratory (IRL 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Andre Faria Vieira
- UCSD-CNRS Joint Research Laboratory (IRL 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Mingyu Liu
- Department of Chemistry, The Scripps Research Institute, 10550 N Torrey Pines Road, La Jolla, California 92037, United States
| | - Aaron Kendrick
- Department of Chemistry, The Scripps Research Institute, 10550 N Torrey Pines Road, La Jolla, California 92037, United States
| | - Douglas B. Grotjahn
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182, United States
| | - Guy Bertrand
- UCSD-CNRS Joint Research Laboratory (IRL 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Rodolphe Jazzar
- UCSD-CNRS Joint Research Laboratory (IRL 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
| | - Keary M. Engle
- Department of Chemistry, The Scripps Research Institute, 10550 N Torrey Pines Road, La Jolla, California 92037, United States
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22
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Pradhan TR, Paudel M, Feoktistova T, Cheong PHY, Park JK. Silaborative Assembly of Allenamides and Alkynes: Highly Regio- and Stereocontrolled Access to Bi- or Trimetallic Skipped Dienes. Angew Chem Int Ed Engl 2022; 61:e202116154. [PMID: 35142019 DOI: 10.1002/anie.202116154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Indexed: 12/16/2022]
Abstract
A highly stereo- and regiocontrolled multicomponent approach to skipped 1,4-dienes decorated with one boryl and two silyl functionalities is described. This Pd-catalyzed atom-economical union of allenamides, alkynes, and Me2 PhSiBpin (or Et3 SiBpin) proceeds without the use of phosphine ligands, instead relying on chelation through the internal amide group of the allenamide sulfonyl. A variety of alkynes, including those derived from complex bioactive molecules, can be efficiently coupled with allenamides and Me2 PhSiBpin in good yields and with excellent selectivity. The synthetic potential was demonstrated through multiple valuable chemoselective transformations, establishing new disconnections for functionalized dienes. Density functional theory calculations revealed that the reaction first proceeded through borylation of the allenamide, followed by silylation of the alkyne and then reductive elimination, which convergently assemble the skipped 1,4-diene.
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Affiliation(s)
- Tapas R Pradhan
- Department of Chemistry and Institution for Functional Materials, Pusan National University, Busan, 46241, Republic of Korea
| | - Mukti Paudel
- Department of Chemistry and Institution for Functional Materials, Pusan National University, Busan, 46241, Republic of Korea
| | | | | | - Jin Kyoon Park
- Department of Chemistry and Institution for Functional Materials, Pusan National University, Busan, 46241, Republic of Korea
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23
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Sato T. Development of Stereodivergent Synthesis of Skipped Dienes and Application to Unified Total Synthesis of Madangamine Alkaloids. J SYN ORG CHEM JPN 2022. [DOI: 10.5059/yukigoseikyokaishi.80.343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Takaaki Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University
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24
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Chaves‐Pouso A, Álvarez‐Constantino AM, Fañanás‐Mastral M. Enantio‐ and Diastereoselective Copper‐Catalyzed Allylboration of Alkynes with Allylic
gem
‐Dichlorides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117696] [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]
Affiliation(s)
- Andrea Chaves‐Pouso
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Andrés M. Álvarez‐Constantino
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Martín Fañanás‐Mastral
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS) Departamento de Química Orgánica Universidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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25
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Pradhan TR, Paudel M, Feoktistova T, Cheong PH, Park JK. Silaborative Assembly of Allenamides and Alkynes: Highly Regio‐ and Stereocontrolled Access to Bi‐ or Trimetallic Skipped Dienes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116154] [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]
Affiliation(s)
- Tapas R. Pradhan
- Department of Chemistry and Institution for Functional Materials Pusan National University Busan 46241 Republic of Korea
| | - Mukti Paudel
- Department of Chemistry and Institution for Functional Materials Pusan National University Busan 46241 Republic of Korea
| | | | | | - Jin Kyoon Park
- Department of Chemistry and Institution for Functional Materials Pusan National University Busan 46241 Republic of Korea
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26
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Jadhav SB, Dash SR, Maurya S, Nanubolu JB, Vanka K, Chegondi R. Enantioselective Cu(I)-catalyzed borylative cyclization of enone-tethered cyclohexadienones and mechanistic insights. Nat Commun 2022; 13:854. [PMID: 35165287 PMCID: PMC8844005 DOI: 10.1038/s41467-022-28288-7] [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] [Received: 06/03/2021] [Accepted: 01/06/2022] [Indexed: 12/12/2022] Open
Abstract
The catalytic asymmetric borylation of conjugated carbonyls followed by stereoselective intramolecular cascade cyclizations with in situ generated chiral enolates are extremely rare. Herein, we report the enantioselective Cu(I)-catalyzed β-borylation/Michael addition on prochiral enone-tethered 2,5-cyclohexadienones. This asymmetric desymmetrization strategy has a broad range of substrate scope to generate densely functionalized bicyclic enones bearing four contiguous stereocenters with excellent yield, enantioselectivity, and diastereoselectivity. One-pot borylation/cyclization/oxidation via the sequential addition of sodium perborate reagent affords the corresponding alcohols without affecting yield and enantioselectivity. The synthetic potential of this reaction is explored through gram-scale reactions and further chemoselective transformations on products. DFT calculations explain the requirement of the base in an equimolar ratio in the reaction, as it leads to the formation of a lithium-enolate complex to undergo C-C bond formation via a chair-like transition state, with a barrier that is 22.5 kcal/mol more favourable than that of the copper-enolate complex. Rapidly building molecular structures with both elements of complexity and flexibility is a key goal of organic synthesis. Here the authors show a tandem copper-catalyzed β-borylation/Michael addition on prochiral enone-tethered 2,5-cyclohexadienones, to generate bicyclic borylated products in high yield and enantioselectivity.
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27
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Okazaki S, Shimada K, Komine N, Hirano M. Ru(0)-Catalyzed Regioselective Synthesis of Borylated-1,4- and -1,5-Diene Building Blocks. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shione Okazaki
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Keita Shimada
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Nobuyuki Komine
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
| | - Masafumi Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakacho, Koganei, Tokyo 184-8588, Japan
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28
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Dorn SK, Brown MK. Cooperative Pd/Cu Catalysis for Alkene Arylboration: Opportunities for Divergent Reactivity. ACS Catal 2022; 12:2058-2063. [PMID: 36212545 PMCID: PMC9540610 DOI: 10.1021/acscatal.1c05696] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A preeminent challenge in alkene difunctionalization is the control of regio-, diastereo-, and enantioselectivity. In this Perspective, a Pd/Cu-cooperative catalytic system for alkene arylboration is highlighted that allows for the controlled introduction of substituents. In particular, examples that allowed for divergent reactivity from a single substrate based on the tuning of catalysts and reaction conditions are emphasized.
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Affiliation(s)
- Stanna K. Dorn
- Indiana University, Department of Chemistry, Bloomington, Indiana 47405, United States
| | - M. Kevin Brown
- Indiana University, Department of Chemistry, Bloomington, Indiana 47405, United States
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29
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Ritchie NFC, Zahara AJ, Wilkerson-Hill SM. Divergent Reactivity of α,α-Disubstituted Alkenyl Hydrazones: Bench Stable Cyclopropylcarbinyl Equivalents. J Am Chem Soc 2022; 144:2101-2106. [PMID: 35086332 DOI: 10.1021/jacs.1c12881] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Herein we report the divergent reactivity of 2,2-dialkyl-3-(E)-alkenyl N-tosylhydrazones using Pd-catalyzed cross-coupling conditions, which enable the Z-selective synthesis of 3-aryl-1,4-dienes and gem-dialkyl vinylcyclopropanes. We found that the dialkylbiaryl phosphine ligand SPhos was the optimal ligand for this transformation producing skipped dienes in up to 83% isolated yield. The ratio of skipped diene to vinylcyclopropane is dependent on both the structure of the α,α-disubstituted hydrazones and the aryl halide partner. Using sterically encumbered aryl bromides provided the trans-cyclopropane products selectively in up to 69% yield. The reaction is stereospecific and stereoselective and occurs alongside a competing 1,2-alkenyl group migration pathway.
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Affiliation(s)
- Nina F C Ritchie
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Adam J Zahara
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Sidney M Wilkerson-Hill
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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30
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Yu SH, Gong TJ, Fu Y. Synthesis of conjugated bisallenes by cooperative Cu/Pd-catalysed borylallenylation of 2-trifluoromethyl-1,3-enynes. Chem Commun (Camb) 2022; 58:12871-12874. [DOI: 10.1039/d2cc03745a] [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
We report a cooperative Cu/Pd-catalysed borylallenylation of 2-trifluoromethyl-1,3-enynes with diboron reagents and propargylic carbonates access to a series of conjugated bisallenes with excellent functional group compatibility.
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Affiliation(s)
- Shang-Hai Yu
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei 230026, China
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui 230031, P. R. China
| | - Tian-Jun Gong
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei 230026, China
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui 230031, P. R. China
| | - Yao Fu
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, University of Science and Technology of China, Hefei 230026, China
- Institute of Energy, Hefei Comprehensive National Science Center, Hefei, Anhui 230031, P. R. China
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31
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Petruncio G, Shellnutt Z, Elahi-Mohassel S, Alishetty S, Paige M. Skipped dienes in natural product synthesis. Nat Prod Rep 2021; 38:2187-2213. [PMID: 34913051 DOI: 10.1039/d1np00012h] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Covering: 2000-2020The 1,4-diene motif, also known as a skipped diene, is widespread across various classes of natural products including alkaloids, fatty acids, terpenoids, and polyketides as part of either the finalized structure or a biosynthetic intermediate. The prevalence of this nonconjugated diene system in nature has resulted in numerous encounters in the total synthesis literature. However, skipped dienes have not been extensively reviewed, which could be attributed to overshadowing by the more recognized 1,3-diene system. In this review, we aim to highlight the relevance of skipped dienes in natural products through the lens of total synthesis. Subjects that will be covered include nomenclature, structural properties, prevalence in natural products, synthetic strategies and the future direction of the field.
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Affiliation(s)
- Greg Petruncio
- Department of Chemistry & Biochemistry, George Mason University, 10920 George Mason Circle, Manassas, Virginia 20110, USA.
| | - Zachary Shellnutt
- Department of Chemistry & Biochemistry, George Mason University, 10920 George Mason Circle, Manassas, Virginia 20110, USA.
| | - Synah Elahi-Mohassel
- Department of Chemistry & Biochemistry, George Mason University, 10920 George Mason Circle, Manassas, Virginia 20110, USA.
| | - Suman Alishetty
- Department of Bioengineering, George Mason University, 10920 George Mason Circle, Manassas, Virginia 20110, USA
| | - Mikell Paige
- Department of Chemistry & Biochemistry, George Mason University, 10920 George Mason Circle, Manassas, Virginia 20110, USA.
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32
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Rasool JU, Ali A, Ahmad QN. Recent advances in Cu-catalyzed transformations of internal alkynes to alkenes and heterocycles. Org Biomol Chem 2021; 19:10259-10287. [PMID: 34806741 DOI: 10.1039/d1ob01709h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Numerous metal-catalyzed reactions involving internal alkynes and aimed towards synthetically and pharmacologically important alkenes and heterocycles have appeared in the literature. Among these, Cu-catalyzed reactions have a special place, which has prompted the investigation and development of carbon-carbon and carbon-heteroatom bond-forming reactions. These reactions possess wide scope, and during the paths of these reactions, either stable or in situ intermediates are formed via the addition of Cu as a core catalyst or synergistic catalyst. In this review, we aim to report different contributions relating to Cu-catalyzed reactions of internal alkynes for the synthesis of different valuable alkenes and heterocycles which have appeared in the literature in the last decade. We anticipate that this appraisal will deliver basic insights for the further advancement of Cu-catalyzed reactions in organic chemistry.
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Affiliation(s)
- Javeed Ur Rasool
- Natural Product and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Canal Road, Jammu-180001, India
| | - Asif Ali
- CSIR-Institute of Genomics and Integrative Biology (CSIR-IGIB), Sukhdev Vihar, Delhi-110025, India
| | - Qazi Naveed Ahmad
- Natural Product and Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine (IIIM), Jammu-180001, India.
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33
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Bose SK, Mao L, Kuehn L, Radius U, Nekvinda J, Santos WL, Westcott SA, Steel PG, Marder TB. First-Row d-Block Element-Catalyzed Carbon-Boron Bond Formation and Related Processes. Chem Rev 2021; 121:13238-13341. [PMID: 34618418 DOI: 10.1021/acs.chemrev.1c00255] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Organoboron reagents represent a unique class of compounds because of their utility in modern synthetic organic chemistry, often affording unprecedented reactivity. The transformation of the carbon-boron bond into a carbon-X (X = C, N, and O) bond in a stereocontrolled fashion has become invaluable in medicinal chemistry, agrochemistry, and natural products chemistry as well as materials science. Over the past decade, first-row d-block transition metals have become increasingly widely used as catalysts for the formation of a carbon-boron bond, a transformation traditionally catalyzed by expensive precious metals. This recent focus on alternative transition metals has enabled growth in fundamental methods in organoboron chemistry. This review surveys the current state-of-the-art in the use of first-row d-block element-based catalysts for the formation of carbon-boron bonds.
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Affiliation(s)
- Shubhankar Kumar Bose
- Centre for Nano and Material Sciences (CNMS), Jain University, Jain Global Campus, Bangalore-562112, India
| | - Lujia Mao
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, Hainan Key Laboratory for Research and Development of Tropical Herbs, School of Pharmacy, Hainan Medical University, 571199 Haikou, Hainan, P. R. China
| | - Laura Kuehn
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Udo Radius
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Jan Nekvinda
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Webster L Santos
- Department of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Stephen A Westcott
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB E4L 1G8, Canada
| | - Patrick G Steel
- Department of Chemistry, University of Durham, Science Laboratories South Road, Durham DH1 3LE, U.K
| | - Todd B Marder
- Institute of Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
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34
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Feng YM, Nie XD, Sun JT, Xu WK, Wei BG. TMSOTf-mediated synthesis of skipped dienes through the addition of olefins to imines and semicyclic N, O-acetals. Org Biomol Chem 2021; 19:7883-7893. [PMID: 34549227 DOI: 10.1039/d1ob01370j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
A novel approach to skipped dienes has been developed through the TMSOTf-mediated one-pot addition-substitution of olefins 2a, 2f and 2g with imines 1a-1g, and a series of aryl substituted skipped dienes 3aa-3gf were accordingly obtained in 62%-94% yields. Moreover, semicyclic N,O-acetals 5 and 7 could also undergo this transformation to produce the corresponding skipped dienes 6aa and 6af-6al and 8ba and 8bf-8bk in moderate to good yields.
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Affiliation(s)
- Yi-Man Feng
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Xiao-Di Nie
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Jian-Ting Sun
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Wen-Ke Xu
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
| | - Bang-Guo Wei
- Department of Natural Medicine, School of Pharmacy, Fudan University, 826 Zhangheng Road, Shanghai 201203, China.
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35
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Wang Z, Wu J, Lamine W, Li B, Sotiropoulos JM, Chrostowska A, Miqueu K, Liu SY. C-Boron Enolates Enable Palladium Catalyzed Carboboration of Internal 1,3-Enynes. Angew Chem Int Ed Engl 2021; 60:21231-21236. [PMID: 34245074 DOI: 10.1002/anie.202108534] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Indexed: 12/17/2022]
Abstract
A new family of carbon-bound boron enolates, generated by a kinetically controlled halogen exchange between chlorocatecholborane and silylketene acetals, is described. These C-boron enolates are demonstrated to activate 1,3-enyne substrates in the presence of a Pd0 /Senphos ligand complex, resulting in the first examples of a carboboration reaction of an alkyne with enolate-equivalent nucleophiles. Highly substituted dienyl boron building blocks are produced in excellent site-, regio-, and diastereoselectivity by the described catalytic cis-carboboration reaction.
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Affiliation(s)
- Ziyong Wang
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Jason Wu
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Walid Lamine
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, 64053, Pau cedex 09, France
| | - Bo Li
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA
| | - Jean-Marc Sotiropoulos
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, 64053, Pau cedex 09, France
| | - Anna Chrostowska
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, 64053, Pau cedex 09, France
| | - Karinne Miqueu
- Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, 64053, Pau cedex 09, France
| | - Shih-Yuan Liu
- Department of Chemistry, Boston College, Chestnut Hill, MA, 02467, USA.,Université de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, UMR 5254, 64053, Pau cedex 09, France
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36
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Wang Z, Wu J, Lamine W, Li B, Sotiropoulos J, Chrostowska A, Miqueu K, Liu S. C−Boron Enolates Enable Palladium Catalyzed Carboboration of Internal 1,3‐Enynes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108534] [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]
Affiliation(s)
- Ziyong Wang
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
| | - Jason Wu
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
| | - Walid Lamine
- Université de Pau et des Pays de l'Adour, E2S UPPA CNRS, IPREM, UMR 5254 64053 Pau cedex 09 France
| | - Bo Li
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
| | - Jean‐Marc Sotiropoulos
- Université de Pau et des Pays de l'Adour, E2S UPPA CNRS, IPREM, UMR 5254 64053 Pau cedex 09 France
| | - Anna Chrostowska
- Université de Pau et des Pays de l'Adour, E2S UPPA CNRS, IPREM, UMR 5254 64053 Pau cedex 09 France
| | - Karinne Miqueu
- Université de Pau et des Pays de l'Adour, E2S UPPA CNRS, IPREM, UMR 5254 64053 Pau cedex 09 France
| | - Shih‐Yuan Liu
- Department of Chemistry Boston College Chestnut Hill MA 02467 USA
- Université de Pau et des Pays de l'Adour, E2S UPPA CNRS, IPREM, UMR 5254 64053 Pau cedex 09 France
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37
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Sato T, Suto T, Nagashima Y, Mukai S, Chida N. Total Synthesis of Skipped Diene Natural Products. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100421] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Takaaki Sato
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Takahiro Suto
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Yoshiyuki Nagashima
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Shori Mukai
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Noritaka Chida
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3-14-1, Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
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38
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Kim-Lee SH, Mauleón P, Gómez Arrayás R, Carretero JC. Dynamic multiligand catalysis: A polar to radical crossover strategy expands alkyne carboboration to unactivated secondary alkyl halides. Chem 2021. [DOI: 10.1016/j.chempr.2021.06.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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39
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Song Y, Fu C, Ma S. Copper-Catalyzed Syntheses of Multiple Functionalizatized Allenes via Three-Component Reaction of Enynes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02140] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Yulong Song
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, People’s Republic of China
| | - Chunling Fu
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, People’s Republic of China
| | - Shengming Ma
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, People’s Republic of China
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40
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Zhang GM, Zhang H, Wang B, Wang JY. Boron-catalyzed dehydrative allylation of 1,3-diketones and β-ketone esters with 1,3-diarylallyl alcohols in water. RSC Adv 2021; 11:17025-17031. [PMID: 35479693 PMCID: PMC9031380 DOI: 10.1039/d1ra01922h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 04/21/2021] [Indexed: 11/21/2022] Open
Abstract
A metal-free catalytic allylation with atom economy and green environment friendly was developed. Allylic alcohols could be directly dehydrated in water by B(C6F5)3, without using any base additives. The reaction can afford the corresponding monoallylated product in moderate to high yield and has been performed on a gram-scale, and a quaternary carbon center can be constructed for the active methine compounds of 1,3-diketones or β-ketone esters in this process. The product can be further converted, such as the synthesis of tetra-substituted pyrazole compounds, or 1,4-dienes and functionalized dihydropyrans.
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Affiliation(s)
- Guo-Min Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu 610041 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Hua Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu 610041 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Bei Wang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu 610041 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Ji-Yu Wang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences Chengdu 610041 P. R. China
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41
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Suliman AMY, Ahmed EAMA, Gong TJ, Fu Y. Cu/Pd-Catalyzed cis-Borylfluoroallylation of Alkynes for the Synthesis of Boryl-Substituted Monofluoroalkenes. Org Lett 2021; 23:3259-3263. [PMID: 33872017 DOI: 10.1021/acs.orglett.1c00668] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Monofluoroalkenes normally act as metabolically stable bioisosteres for amide groups (-NH-CO-) and have widespread applications in drug discovery. Additionally, they are widely used as building blocks in organic synthesis. In this study, the Cu/Pd-catalyzed cis-borylfluoroallylation of alkynes was achieved, providing a modular and general tactic for the preparation of monofluorinated alkene scaffolds with high regioselectivity and stereoselectivity. Moreover, an array of synthetic building blocks can be generated by downstream transformations.
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Affiliation(s)
- Ayman M Y Suliman
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, China
| | - Ebrahim-Alkhalil M A Ahmed
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province 325035, China
| | - Tian-Jun Gong
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230031, China
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42
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Kim UB, Jung DJ, Jeon HJ, Rathwell K, Lee SG. Synergistic Dual Transition Metal Catalysis. Chem Rev 2020; 120:13382-13433. [DOI: 10.1021/acs.chemrev.0c00245] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- U Bin Kim
- Department of Chemistry and Nanoscience (BK 21 Plus), Ewha Womans University, Seoul 120-750, Korea
| | - Da Jung Jung
- Department of Chemistry and Nanoscience (BK 21 Plus), Ewha Womans University, Seoul 120-750, Korea
| | - Hyun Ji Jeon
- Department of Chemistry and Nanoscience (BK 21 Plus), Ewha Womans University, Seoul 120-750, Korea
| | - Kris Rathwell
- Department of Chemistry and Nanoscience (BK 21 Plus), Ewha Womans University, Seoul 120-750, Korea
| | - Sang-gi Lee
- Department of Chemistry and Nanoscience (BK 21 Plus), Ewha Womans University, Seoul 120-750, Korea
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43
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Whyte A, Torelli A, Mirabi B, Zhang A, Lautens M. Copper-Catalyzed Borylative Difunctionalization of π-Systems. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02758] [Citation(s) in RCA: 89] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Andrew Whyte
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Alexa Torelli
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Bijan Mirabi
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Anji Zhang
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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44
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Gallego AM, Peñas-Defrutos MN, Marcos-Ayuso G, Martin-Alvarez JM, Martínez-Ilarduya JM, Espinet P. Experimental study of speciation and mechanistic implications when using chelating ligands in aryl-alkynyl Stille coupling. Dalton Trans 2020; 49:11336-11345. [PMID: 32766614 DOI: 10.1039/d0dt02335c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Neutral palladium(ii) complexes [Pd(Rf)X(P-L)] (Rf = 3,5-C6Cl2F3, X = Cl, I, OTf) with P-P (dppe and dppf) and P-N (PPh2(bzN)) ligands have chelated structures in the solid-state, except for P-L = dppf and X = Cl, were chelated and dimeric bridged structures are found. The species present in solution in different solvents (CDCl3, THF, NMP and HMPA) have been characterised by 19F and 31P{1H} NMR and conductivity studies. Some [Pd(Rf)X(P-L)] complexes are involved in equilibria with [Pd(Rf)(solv)(P-L)]X, depending on the solvent and X. The ΔH° and ΔS° values of these equilibria explain the variations of ionic vs. neutral complexes in the range 183-293 K. Overall the order of coordination strength of solvents and anionic ligands is: HMPA ≫ NMP > THF and I-, Cl- > TfO-. This coordination preference is determining the complexes participating in the alkynyl transmetalation from PhC[triple bond, length as m-dash]CSnBu3 to [Pd(Rf)X(P-L)] (X = OTf, I) in THF and subsequent coupling. Very different reaction rates and stability of intermediates are observed for similar complexes, revealing neglected complexities that catalytic cycles have to deal with. Rich information on the evolution of these Stille systems after transmetalation has been obtained that leads to proposal of a common behaviour for complexes with dppe and PPh2(bzN), but a different evolution for the complexes with dppf: this difference leads the latter to produce PhC[triple bond, length as m-dash]CRf and black Pd, whereas the two former yield PhC[triple bond, length as m-dash]CRf and [Pd(C[triple bond, length as m-dash]CPh)(SnBu3)(dppe)] or [Pd(C[triple bond, length as m-dash]CPh)(SnBu3){PPh2(bzN)}].
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Affiliation(s)
- Ana M Gallego
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071 Valladolid, Spain.
| | - Marconi N Peñas-Defrutos
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071 Valladolid, Spain.
| | - Guillermo Marcos-Ayuso
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071 Valladolid, Spain.
| | - Jose M Martin-Alvarez
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071 Valladolid, Spain.
| | - Jesús M Martínez-Ilarduya
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071 Valladolid, Spain.
| | - Pablo Espinet
- IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071 Valladolid, Spain.
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45
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Yu SH, Gong TJ, Fu Y. Three-Component Borylallenylation of Alkynes: Access to Densely Boryl-Substituted Ene-allenes. Org Lett 2020; 22:2941-2945. [PMID: 32250638 DOI: 10.1021/acs.orglett.0c00643] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Ene-allenes serve as versatile building blocks in organic synthesis, and the development of their efficient preparation is valuable. Herein the synthesis of boryl-substituted ene-allenes utilizing a Cu/Pd-catalyzed borylallenylation of alkynes with propargylic carbonates and bis(pinacolato)diboron is reported. Densely (tetra-, penta-, and hexa-) substituted ene-allenes were synthesized in acceptable yield with high regio- and stereoselectivity. More important molecule structures can be obtained by subsequent modifications.
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Affiliation(s)
- Shang-Hai Yu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei 230026, China
| | - Tian-Jun Gong
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei 230026, China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei 230026, China
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46
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Wu Y, Huo X, Zhang W. Synergistic Pd/Cu Catalysis in Organic Synthesis. Chemistry 2020; 26:4895-4916. [DOI: 10.1002/chem.201904495] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Indexed: 12/31/2022]
Affiliation(s)
- Yue Wu
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
- Zhiyuan CollegeShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Xiaohong Huo
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
- College of Chemistry and Molecular EngineeringZhengzhou University 75 Daxue Road Zhengzhou 450052 P. R. China
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47
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Mateos J, Fuentes-Vara N, Fra L, Rivera-Chao E, Vázquez-Galiñanes N, Chaves-Pouso A, Fañanás-Mastral M. Transmetalation as Key Step in the Diastereo- and Enantioselective Synergistic Cu/Pd-Catalyzed Allylboration of Alkynes with Racemic Allylic Carbonates. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jaime Mateos
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Noelia Fuentes-Vara
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Laura Fra
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Eva Rivera-Chao
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Nuria Vázquez-Galiñanes
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Andrea Chaves-Pouso
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Martín Fañanás-Mastral
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
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48
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Zhuo KF, Xu WY, Gong TJ, Fu Y. The dual-catalyzed boryldifluoroallylation of alkynes: an efficient method for the synthesis of skipped gem-difluorodienes. Chem Commun (Camb) 2020; 56:2340-2343. [DOI: 10.1039/c9cc08485a] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The Cu/Pd-catalyzed boryldifluoroallylation of alkynes was achieved, providing the skipped gem-difluorodiene scaffolds with high regio- and stereoselectivity. An array of synthetic building blocks can be obtained via further transformations.
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Affiliation(s)
- Kai-Feng Zhuo
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Wen-Yan Xu
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Tian-Jun Gong
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale
- iChEM
- CAS Key Laboratory of Urban Pollutant Conversion
- Anhui Province Key Laboratory of Biomass Clean Energy
- University of Science and Technology of China
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49
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Rivera‐Chao E, Mitxelena M, Varela JA, Fañanás‐Mastral M. Copper‐Catalyzed Enantioselective Allylboration of Alkynes: Synthesis of Highly Versatile Multifunctional Building Blocks. Angew Chem Int Ed Engl 2019; 58:18230-18234. [DOI: 10.1002/anie.201910707] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 09/13/2019] [Indexed: 01/23/2023]
Affiliation(s)
- Eva Rivera‐Chao
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Maider Mitxelena
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Jesús A. Varela
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
| | - Martín Fañanás‐Mastral
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS)Departamento de Química OrgánicaUniversidade de Santiago de Compostela 15782 Santiago de Compostela Spain
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50
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Nagashima Y, Okada Y, Sato T, Chida N. Enantioselective Stereodivergent Approach to α-Hydroxy Skipped Dienes: Synthesis of the Western Polyene Fragment of Corallopyronin A. CHEM LETT 2019. [DOI: 10.1246/cl.190676] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yoshiyuki Nagashima
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Yuto Okada
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Takaaki Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Noritaka Chida
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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