1
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Wang ZL, Wang Y, Sun YC, Zhao JB, Xu YH. Regiodivergent Hydrosilylation of Polar Enynes to Synthesize Site-Specific Silyl-Substituted Dienes. Angew Chem Int Ed Engl 2024; 63:e202405791. [PMID: 38593214 DOI: 10.1002/anie.202405791] [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: 03/25/2024] [Revised: 04/07/2024] [Accepted: 04/08/2024] [Indexed: 04/11/2024]
Abstract
Herein, we present catalyst-regulated switchable site-selective hydrosilylation of enynes, which are suitable for a wide range of alkyl and aryl substituted polar enynes and exhibit excellent functional group compatibility. Under the optimized conditions, silyl groups can be precisely installed at various positions of 1,3-dienes. While α- and γ-silylation products were obtained under platinum-catalytic systems, β-silylation products were delivered with [Cp*RuCl]4 as catalyst. This process lead to the formation of 1,3-dienoates with diverse substitutions, which would pose challenges with other methodologies.
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Affiliation(s)
- Zi-Lu Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Ying Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yu-Chen Sun
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Jin-Bo Zhao
- Faculty of Chemistry and Life Science, Changchun University of Technology, Changchun, 130012, 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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2
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Wang ZL, Li Q, Yang MW, Song ZX, Xiao ZY, Ma WW, Zhao JB, Xu YH. Regio- and enantioselective CuH-catalyzed 1,2- and 1,4-hydrosilylation of 1,3-enynes. Nat Commun 2023; 14:5048. [PMID: 37598226 PMCID: PMC10439940 DOI: 10.1038/s41467-023-40703-1] [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: 01/11/2023] [Accepted: 08/07/2023] [Indexed: 08/21/2023] Open
Abstract
We report a copper-catalyzed ligand-controlled selective 1,2- and 1,4-hydrosilylation of 1,3-enynes, which furnishes enantiomerically enriched propargyl- and 1,2-allenylsilane products in high yields with excellent enantioselectivities (up to 99% ee). This reaction proceeds under mild conditions, shows broad substrate scope for both 1,3-enynes and trihydrosilanes, and displays excellent regioselectivities. Mechanistic studies based on deuterium-labeling reactions and density functional theory (DFT) calculations suggest that allenylcopper is the dominant reactive intermediate under both 1,2- and 1,4-hydrosilylation conditions, and it undergoes metathesis with silanes via selective four-membered or six-membered transition state, depending on the nature of the ligand. The weak interactions between the ligands and the reacting partners are found to be the key controlling factor for the observed regioselectivity switch. The origin of high enantiocontrol in the 1,4-hydrosilylation is also revealed by high level DLPNO-CCSD(T) calculations.
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Affiliation(s)
- Zi-Lu Wang
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China
| | - Qi Li
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China
| | - Meng-Wei Yang
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China
| | - Zhao-Xin Song
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China
| | - Zhen-Yu Xiao
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China
| | - Wei-Wei Ma
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China
| | - Jin-Bo Zhao
- Faculty of Chemistry and Life Science, Changchun University of Technology, 130012, Changchun, P.R. China.
| | - Yun-He Xu
- Department of Chemistry, University of Science and Technology of China, 230026, Hefei, P. R. China.
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3
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Wang Y, Sun H, He X, Chen M, Zang H, Liu X, Piao H. Phytochemical Analysis, Antioxidant and Enzyme-Inhibitory Activities, and Multivariate Analysis of Insect Gall Extracts of Picea koraiensis Nakai. Molecules 2023; 28:6021. [PMID: 37630273 PMCID: PMC10459859 DOI: 10.3390/molecules28166021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 07/26/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Picea koraiensis Nakai (PK) is an evergreen tree. It plays an important role in landscaping and road greening. Insect galls of PK are formed by parasitism of the adelgid Adelges laricis. Except for phenolics, other chemical constituents and biological activity of insect gall from PK are still unknown. Thus, here, we performed phytochemical and biological activity analyses of PK insect gall extracts, aiming to turn waste into treasure and serve human health. PK insect gall extracts were prepared using seven solvents. Antioxidant activities of the extracts were examined via antioxidant assays (radical and oxidizing substance quenching, metal chelating, and reducing power). The inhibitory activities of the extracts were determined toward the key human-disease-related enzymes α-glucosidase, α-amylase, cholinesterase, tyrosinase, urease, and xanthine oxidase. The content of numerous active constituents was high in the methanol and ethanol extracts of PK insect gall, and these extracts had the highest antioxidant and enzyme-inhibitory activities. They also showed excellent stability and low toxicity. These extracts have potential for use as stabilizers of olive and sunflower seed oils.
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Affiliation(s)
- Yanqiu Wang
- College of Pharmacy, Yanbian University, Yanji 133000, China
- Tonghua Health School, Tonghua 134000, China
| | - Hui Sun
- Green Medicinal Chemistry Laboratory, School of Pharmacy and Medicine, Tonghua Normal University, Tonghua 134002, China
| | - Xu He
- College of Pharmacy, Yanbian University, Yanji 133000, China
- Green Medicinal Chemistry Laboratory, School of Pharmacy and Medicine, Tonghua Normal University, Tonghua 134002, China
| | - Meihua Chen
- College of Pharmacy, Yanbian University, Yanji 133000, China
- Green Medicinal Chemistry Laboratory, School of Pharmacy and Medicine, Tonghua Normal University, Tonghua 134002, China
| | - Hao Zang
- College of Pharmacy, Yanbian University, Yanji 133000, China
- Green Medicinal Chemistry Laboratory, School of Pharmacy and Medicine, Tonghua Normal University, Tonghua 134002, China
| | - Xuekun Liu
- College of Pharmacy, Yanbian University, Yanji 133000, China
- Green Medicinal Chemistry Laboratory, School of Pharmacy and Medicine, Tonghua Normal University, Tonghua 134002, China
| | - Huri Piao
- College of Pharmacy, Yanbian University, Yanji 133000, China
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4
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Lu W, Zhao Y, Meng F. Cobalt-Catalyzed Sequential Site- and Stereoselective Hydrosilylation of 1,3- and 1,4-Enynes. J Am Chem Soc 2022; 144:5233-5240. [PMID: 35298144 DOI: 10.1021/jacs.2c00288] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Catalytic sequential hydrosilylation of 1,3-enynes and 1,4-enynes promoted by cobalt complexes derived from bisphosphines are presented. Site- and stereoselective Si-H addition of primary silanes to 1,3-enynes followed by sequential intramolecular diastereo- and enantioselective Si-H addition afforded enantioenriched cyclic alkenylsilanes with simultaneous construction of a carbon-stereogenic center and a silicon-stereogenic center. Reactions of 1,4-enynes proceeded through sequential isomerization of the alkene moiety followed by site- and stereoselective hydrosilylation. A wide range of alkenylsilanes were afforded in high efficiency and selectivity. Functionalization of the enantioenriched silanes containing a stereogenic center at silicon delivered a variety of chiral building blocks that are otherwise difficult to access.
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Affiliation(s)
- Wenxin Lu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, China, 200032
| | - Yongmei Zhao
- State Key Laboratory of Heavy Oil Processing, College of Science, China University of Petroleum, Beijing, China, 102249
| | - Fanke Meng
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, China, 200032
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5
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Dethe DH, Kumar V, Beeralingappa NC, Mishra KB, Nirpal AK. Synthesis of Polyene Bioactive Natural Products: FR252921 and Vitamin A. Org Lett 2022; 24:2203-2207. [PMID: 35274951 DOI: 10.1021/acs.orglett.2c00546] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A formal synthesis of FR252921, a potent macrocyclic immunosuppressive agent, and a six-step synthesis of vitamin A have been demonstrated. The application of a ruthenium-catalyzed step-economic and environmentally benign strategy for the highly stereo- and chemoselective construction of valuable polyene motifs of FR252921 and vitamin A highlights the syntheses. The key features for the synthesis FR252921 include preparation of the triene moiety followed by two consecutive peptide couplings of the three fragments.
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Affiliation(s)
- Dattatraya H Dethe
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Vimlesh Kumar
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | | | - Kunj B Mishra
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Appasaheb K Nirpal
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
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6
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Chen W, Jiang C, Zhang J, Xu J, Xu L, Xu X, Li J, Cui C. Rare-Earth-Catalyzed Selective 1,4-Hydrosilylation of Branched 1,3-Enynes Giving Tetrasubstituted Silylallenes. J Am Chem Soc 2021; 143:12913-12918. [PMID: 34388341 DOI: 10.1021/jacs.1c04689] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Allenes are versatile synthons in organic synthesis and medicinal chemistry because of their diverse reactivities. Catalytic 1,4-hydrosilylation of 1,3-enynes may present the straightforward strategy for synthesis of silylallenes. However, the transition-metal-catalyzed reaction has not been successful due to poor selectivity and very limited substrate scopes. We report here the efficient and selective 1,4-hydrosilylation of branched 1,3-enynes enabled by the ene-diamido rare-earth ate catalysts using both alkyl and aryl hydrosilanes, leading to the exclusive formation of tetrasubstituted silylallenes. Deuteration reaction, kinetic study, and DFT calculations were conducted to investigate the possible mechanism, revealing crucial roles of high Lewis acidity, large ionic radius, and ate structure of the rare-earth catalysts.
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Affiliation(s)
- Wufeng Chen
- State Key Laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Chunhui Jiang
- State Key Laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Jianying Zhang
- State Key Laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Jiaqi Xu
- State Key Laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Lin Xu
- State Key Laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Xiufang Xu
- State Key Laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Jianfeng Li
- State Key Laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
| | - Chunming Cui
- State Key Laboratory of Elemento-Organic Chemistry and College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China
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7
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Kong D, Hu B, Yang M, Xia H, Chen D. Cobalt-Catalyzed (E)-Selective Hydrosilylation of 1,3-Enynes for the Synthesis of 1,3-Dienylsilanes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00219] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Degong Kong
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of China
| | - Bowen Hu
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China
| | - Min Yang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People’s Republic of China
| | - Haiping Xia
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China
| | - Dafa Chen
- Shenzhen Grubbs Institute, Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, People’s Republic of China
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8
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Guo Z, Wen H, Liu G, Huang Z. Iron-Catalyzed Regio- and Stereoselective Hydrosilylation of 1,3-Enynes To Access 1,3-Dienylsilanes. Org Lett 2021; 23:2375-2379. [PMID: 33689387 DOI: 10.1021/acs.orglett.1c00670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A regio- and stereoselective hydrosilylation of 1,3-enynes with primary and secondary silanes to access 1,3-dienylsilanes is accomplished by employing an iron precatalyst bearing iminopyridine-oxazoline (IPO) ligand. The hydrosilylation proceeds via syn-addition of a Si-H bond to the alkyne group of 1,3-enynes, incorporating the silyl group at the site proximal to the alkene. The reaction features mild conditions, broad substrate scope, and good functional group tolerance. The synthetic utility was demonstrated by gram-scale reactions and further transformations.
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Affiliation(s)
- Zhihao Guo
- Chang-Kung Chuang Institute, East China Normal University, Shanghai 200062, China.,State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Huanan Wen
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Guixia Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
| | - Zheng Huang
- Chang-Kung Chuang Institute, East China Normal University, Shanghai 200062, China.,State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China.,School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
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9
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Rivas A, Areal A, Mora P, Álvarez R, de Lera AR. Synthesis of Symmetrical and Nonsymmetrical Polyenes by Iterative and Bidirectional Palladium-Catalyzed Cross-Coupling Reactions. Chemistry 2020; 26:13543-13567. [PMID: 32267574 DOI: 10.1002/chem.202000624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/08/2020] [Indexed: 11/06/2022]
Abstract
Bifunctional unsaturated reagents designed to undergo palladium-catalyzed cross-coupling reactions with complementary polyenyl connective fragments are highly useful for the undoubtedly challenging synthesis of polyenes. The current toolkit of building blocks for the bidirectional formation of Csp2 -Csp2 single bonds of polyenes includes homo-bisfunctionalized reagents with equal or unequal reactivity (due to steric and/or electronic factors), and hetero-bisfunctionalized counterparts containing either two different nucleophiles, two electrophiles or one of these functionalities and a latent nucleophile that can be unmasked when desired. The combination of these bifunctional linchpin reagents using tactics that modulate the reactivity of each terminus in order to achieve the required connection have streamlined the synthesis of polyenes of great complexity using (iterative) cross-coupling methods for Csp2 -Csp2 bond formation. Reaction conditions for the Pd-catalyzed cross-coupling reactions are mild and functional-group-tolerant, and therefore these protocols allow to construct the polyene structures using shorter unsaturated reactants with the desired geometries, since in general the products preserve the stereochemical information of the connected cross-coupling partners.
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Affiliation(s)
- Aurea Rivas
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Andrea Areal
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Paula Mora
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Rosana Álvarez
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Angel R de Lera
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
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10
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Rivas A, Pequerul R, Barracco V, Domínguez M, López S, Jiménez R, Parés X, Alvarez R, Farrés J, de Lera AR. Synthesis of C11-to-C14 methyl-shifted all-trans-retinal analogues and their activities on human aldo-keto reductases. Org Biomol Chem 2020; 18:4788-4801. [PMID: 32530010 DOI: 10.1039/d0ob01084g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Human aldo-keto reductases (AKRs) are enzymes involved in the reduction, among other substrates, of all-trans-retinal to all-trans-retinol (vitamin A), thus contributing to the control of the levels of retinoids in organisms. Structure-activity relationship studies of a series of C11-to-C14 methyl-shifted (relative to natural C13-methyl) all-trans-retinal analogues as putative substrates of AKRs have been reported. The synthesis of these retinoids was based on the formation of a C10-C11 single bond of the pentaene skeleton starting from a trienyl iodide and the corresponding dienylstannanes and dienylsilanes, using the Stille-Kosugi-Migita and Hiyama-Denmark cross-coupling reactions, respectively. Since these reagents differ by the location and presence of methyl groups at the dienylorganometallic fragment, the study also provided insights into the ability of the different positional isomers to undergo cross-coupling and the sensitivity of these processes to steric hindrance. The resulting C11-to-C14 methyl-shifted all-trans-retinal analogues were found to be active substrates when tested with AKR1B1 and AKR1B10 enzymes, although relevant differences in substrate specificities were noted. For AKR1B1, all analogues exhibited higher catalytic efficiency (kcat/Km) than parent all-trans-retinal. In addition, only all-trans-11-methylretinal, the most hydrophobic derivative, showed a higher value of kcat/Km = 106 000 ± 23 200 mM-1 min-1 for AKR1B10, which is in fact the highest value from all known retinoid substrates of this enzyme. The novel structures, identified as efficient AKR substrates, may serve in the design of selective inhibitors with potential pharmacological interest.
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Affiliation(s)
- Aurea Rivas
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, E-36310 Vigo, Spain.
| | - Raquel Pequerul
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain
| | - Vito Barracco
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain and Department of Biology, Biochemistry Unit, University of Pisa, I-56126 Pisa, Italy
| | - Marta Domínguez
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, E-36310 Vigo, Spain.
| | - Susana López
- Departamento de Química Orgánica, Facultade de Química, Universidade de Santiago de Compostela, E-15782 Santiago, Spain
| | - Rafael Jiménez
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain
| | - Xavier Parés
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain
| | - Rosana Alvarez
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, E-36310 Vigo, Spain.
| | - Jaume Farrés
- Department of Biochemistry and Molecular Biology, Faculty of Biosciences, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain
| | - Angel R de Lera
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, E-36310 Vigo, Spain.
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11
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Gudmundsson HG, Kuper CJ, Cornut D, Urbitsch F, Elbert BL, Anderson EA. Synthesis of Cyclic Alkenyl Dimethylsiloxanes from Alkynyl Benzyldimethylsilanes and Application in Polyene Synthesis. J Org Chem 2019; 84:14868-14882. [PMID: 31646859 DOI: 10.1021/acs.joc.9b01664] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cyclic dimethylalkenylsiloxanes, useful motifs for (Z)-selective Hiyama cross-coupling, are accessed from alkynyl benzyldimethylsilanes featuring adjacent allylic or homoallylic oxygen substituents by semihydrogenation/debenzylation/cyclization. While formation of 5- and 6-membered rings can be achieved from the free alcohols using fluoride or silanolate, allylic acetate precursors to 5-membered rings display distinct modes of activation. The utility of these compounds is demonstrated through the preparation of a variety of (Z)-alkene-containing polyenes and application to a concise total synthesis of leukotriene B3.
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Affiliation(s)
| | - Christian J Kuper
- Chemistry Research Laboratory , 12 Mansfield Road , Oxford OX1 3TA , U.K
| | - Damien Cornut
- Chemistry Research Laboratory , 12 Mansfield Road , Oxford OX1 3TA , U.K
| | - Felix Urbitsch
- Chemistry Research Laboratory , 12 Mansfield Road , Oxford OX1 3TA , U.K
| | - Bryony L Elbert
- Chemistry Research Laboratory , 12 Mansfield Road , Oxford OX1 3TA , U.K
| | - Edward A Anderson
- Chemistry Research Laboratory , 12 Mansfield Road , Oxford OX1 3TA , U.K
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12
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Rivas A, Pérez-Revenga V, Alvarez R, de Lera AR. Bidirectional Hiyama-Denmark Cross-Coupling Reactions of Bissilyldeca-1,3,5,7,9-pentaenes for the Synthesis of Symmetrical and Non-Symmetrical Carotenoids. Chemistry 2019; 25:14399-14407. [PMID: 31456273 DOI: 10.1002/chem.201903080] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/20/2019] [Indexed: 02/02/2023]
Abstract
The construction of the carotenoid skeleton by Pd-catalyzed Csp2 -Csp2 cross-coupling reactions of symmetrical and non-symmetrical 1,10-bissilyldeca-1,3,5,7,9-pentaenes and the corresponding complementary alkenyl iodides has been developed. Reaction conditions for these bidirectional and orthogonal Hiyama-Denmark cross-coupling reactions of bisfunctionalized pentaenes are mild and the carotenoid products preserve the stereochemical information of the corresponding oligoene partners. The carotenoids synthesized in this manner include β,β-carotene and (3R,3'R)-zeaxanthin (symmetrical) as well as 9-cis-β,β-carotene, 7,8-dihydro-β,β-carotene and β-cryptoxanthin (non-symmetrical).
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Affiliation(s)
- Aurea Rivas
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Víctor Pérez-Revenga
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Rosana Alvarez
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
| | - Angel R de Lera
- Departamento de Química Orgánica, Facultade de Química, CINBIO and IIS Galicia Sur, Universidade de Vigo, 36310, Vigo, Spain
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13
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Zhang S, Cai J, Yamamoto Y, Bao M. Palladium-Catalyzed sp2–sp3 Coupling of Chloromethylarenes with Allyltrimethoxysilane: Synthesis of Allyl Arenes. J Org Chem 2017; 82:5974-5980. [DOI: 10.1021/acs.joc.7b00678] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sheng Zhang
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
| | - Jinfang Cai
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
| | - Yoshinori Yamamoto
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
- WPI-AIMR
(WPI-Advanced Institute for Materials Research), Tohoku University, Sendai 980-8577, Japan
| | - Ming Bao
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
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14
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Mostafa MAB, McMillan AE, Sutherland A. Structural diversification of the aminobicyclo[4.3.0]nonane skeleton using alkynylsilyl-derived allylic trichloroacetimidates. Org Biomol Chem 2017; 15:3035-3045. [PMID: 28304410 DOI: 10.1039/c7ob00456g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The amino substituted bicyclo[4.3.0]nonane is a molecular scaffold found in a wide range of natural products and medicinal agents. Despite this, synthetic methods for the general preparation of this structural motif are sparse. Here we evaluate a diastereoselective approach for the preparation of vinylsilyl derived aminobicyclo[4.3.0]nonanes using a one-pot multi-bond forming process involving a Pd(ii)-catalysed Overman rearrangement, a Ru(ii)-catalysed ring closing enyne metathesis reaction, followed by a hydrogen bonding directed Diels-Alder reaction. We show that a benzyldimethylsilyl-substituted alkene analogue is amenable to further functionalisation and the late stage generation of diverse sp3-rich, drug-like aminobicyclo[4.3.0]nonane scaffolds with up to six stereogenic centres.
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Affiliation(s)
- Mohamed A B Mostafa
- WestCHEM, School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
| | - Angus E McMillan
- WestCHEM, School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
| | - Andrew Sutherland
- WestCHEM, School of Chemistry, The Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
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15
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Foubelo F, Nájera C, Yus M. The Hiyama Cross-Coupling Reaction: New Discoveries. CHEM REC 2016; 16:2521-2533. [DOI: 10.1002/tcr.201600063] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Indexed: 12/19/2022]
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16
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McAdam CA, McLaughlin MG, Cook MJ. An alkyne hydrosilylation–Hiyama coupling approach to highly functionalised 1,3-dienes. Org Chem Front 2015. [DOI: 10.1039/c5qo00002e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A high yielding and completely stereoselective hydrosilylation–Hiyama protocol has been established for the synthesis of highly functionalised E,E-dienes.
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Affiliation(s)
- Catherine A. McAdam
- School of Chemistry and Chemical Engineering
- Queen's University Belfast
- Belfast
- UK
| | - Mark G. McLaughlin
- School of Chemistry and Chemical Engineering
- Queen's University Belfast
- Belfast
- UK
| | - Matthew J. Cook
- School of Chemistry and Chemical Engineering
- Queen's University Belfast
- Belfast
- UK
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17
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Elbert BL, Lim DSW, Gudmundsson HG, O'Hanlon JA, Anderson EA. Synthesis of cyclic alkenylsiloxanes by semihydrogenation: a stereospecific route to (Z)-alkenyl polyenes. Chemistry 2014; 20:8594-8. [PMID: 24899240 PMCID: PMC4531823 DOI: 10.1002/chem.201403255] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Indexed: 11/24/2022]
Abstract
Cyclic alkenylsiloxanes were synthesized by semihydrogenation of alkynylsilanes-a reaction previously plagued by poor stereoselectivity. The silanes, which can be synthesized on multigram scale, undergo Hiyama-Denmark coupling to give (Z)-alkenyl polyene motifs found in bioactive natural products. The ring size of the silane is crucial: five-membered cyclic siloxanes also couple under fluoride-free conditions, whilst their six-membered homologues do not, enabling orthogonality within this structural motif.
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Affiliation(s)
- Bryony L Elbert
- Chemistry Research Laboratory, University of Oxford12 Mansfield Road, Oxford, OX1 3TA, U.K. Fax: (+44) 1865-285002 E-mail:
| | - Diane S W Lim
- Chemistry Research Laboratory, University of Oxford12 Mansfield Road, Oxford, OX1 3TA, U.K. Fax: (+44) 1865-285002 E-mail:
| | - Haraldur G Gudmundsson
- Chemistry Research Laboratory, University of Oxford12 Mansfield Road, Oxford, OX1 3TA, U.K. Fax: (+44) 1865-285002 E-mail:
| | - Jack A O'Hanlon
- Chemistry Research Laboratory, University of Oxford12 Mansfield Road, Oxford, OX1 3TA, U.K. Fax: (+44) 1865-285002 E-mail:
| | - Edward A Anderson
- Chemistry Research Laboratory, University of Oxford12 Mansfield Road, Oxford, OX1 3TA, U.K. Fax: (+44) 1865-285002 E-mail:
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18
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Lee J, Panek JS. Synthesis of isochromene-type scaffolds via single-flask Diels-Alder-[4 + 2]-annulation sequence of a silyl-substituted diene with menadione. Org Lett 2014; 16:3320-3. [PMID: 24918110 PMCID: PMC4076005 DOI: 10.1021/ol501329t] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A sequential Diels-Alder reaction/silicon-directed [4 + 2]-annulation was developed to assemble hydroisochromene-type ring systems from menadione 2. In the first step, a Diels-Alder of the 1-silyl-substituted butadiene 1 with 2 furnished an intermediate cyclic allylsilane. Subsequently, TMSOTf promoted a [4 + 2]-annulation through trapping of an oxonium, generated by condensation between an aldehyde and the TBS protected alcohol resulted in the formation of a cis-fused hydroisochromene 13.
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Affiliation(s)
- Jihoon Lee
- Department of Chemistry and Center for Chemical Methodology and Library Development, Metcalf Center for Science and Engineering, Boston University , 590 Commonwealth Avenue, Boston, Massachusetts 02215, United States
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19
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Álvarez R, Vaz B, Gronemeyer H, de Lera ÁR. Functions, therapeutic applications, and synthesis of retinoids and carotenoids. Chem Rev 2013; 114:1-125. [PMID: 24266866 DOI: 10.1021/cr400126u] [Citation(s) in RCA: 163] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Rosana Álvarez
- Departamento de Química Orgánica, Centro de Investigación Biomédica (CINBIO), and Instituto de Investigación Biomédica de Vigo (IBIV), Universidade de Vigo , 36310 Vigo, Spain
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20
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Zhang X, Wang M, Zhang MX, Xu YH, Loh TP. Synthesis of Dienyl Ketones via Palladium(II)-Catalyzed Direct Cross-Coupling Reactions between Simple Alkenes and Vinyl Ketones: Application to the Synthesis of Vitamin A1 and Bornelone. Org Lett 2013; 15:5531-3. [DOI: 10.1021/ol402692t] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Xiang Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China, and Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore
| | - Min Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China, and Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore
| | - Ming-Xin Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China, and Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore
| | - Yun-He Xu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China, and Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore
| | - Teck-Peng Loh
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China, and Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore
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21
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Rossi R, Bellina F, Lessi M, Manzini C. Development and applications of highly selective palladium-catalyzed monocoupling reactions of (cyclo)alkenes and 1,3-alkadienes bearing two or three electrophilic sites and bis(enol triflates) with terminal alkynes. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.06.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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22
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Zhou H, Moberg C. Regio- and Stereoselective Hydrosilylation of 1,3-Enynes Catalyzed by Palladium. Org Lett 2013; 15:1444-7. [DOI: 10.1021/ol4001334] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hui Zhou
- Department of Chemistry, Organic Chemistry, School of Chemical Science and Engineering, KTH Royal Institute of Technology, SE 100 44 Stockholm, Sweden
| | - Christina Moberg
- Department of Chemistry, Organic Chemistry, School of Chemical Science and Engineering, KTH Royal Institute of Technology, SE 100 44 Stockholm, Sweden
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23
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Inubushi H, Kondo H, Lesbani A, Miyachi M, Yamanoi Y, Nishihara H. Direct synthesis of alkylsilanes by platinum-catalyzed coupling of hydrosilanes and iodoalkanes. Chem Commun (Camb) 2013; 49:134-6. [DOI: 10.1039/c2cc35150a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Bergueiro J, Montenegro J, Saá C, López S. Synthesis of 11-cis-Retinoids by Hydrosilylation-Protodesilylation of an 11,12-Didehydro Precursor: Easy Access to 11- and 12-Mono- and 11,12-Dideuteroretinoids. Chemistry 2012; 18:14100-7. [DOI: 10.1002/chem.201202260] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Indexed: 12/27/2022]
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25
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Iglesias M, Pérez-Nicolás M, Miguel PJS, Polo V, Fernández-Alvarez FJ, Pérez-Torrente JJ, Oro LA. A synthon for a 14-electron Ir(iii) species: catalyst for highly selective β-(Z) hydrosilylation of terminal alkynes. Chem Commun (Camb) 2012; 48:9480-2. [DOI: 10.1039/c2cc34931k] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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