1
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Wang MY, Zeng WL, Chen L, Yuan YF, Li W. Umpolung-Enabled Divergent Dearomative Carbonylations. Angew Chem Int Ed Engl 2024; 63:e202403917. [PMID: 38818640 DOI: 10.1002/anie.202403917] [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: 02/25/2024] [Revised: 05/28/2024] [Accepted: 05/29/2024] [Indexed: 06/01/2024]
Abstract
Although dearomative functionalizations enable the direct conversion of flat aromatics into precious three-dimensional architectures, the case for simple arenes remains largely underdeveloped owing to the high aromatic stabilization energy. We herein report a dearomative sequential addition of two nucleophiles to arene π-bonds through umpolung of chromium-arene complexes. This mode enables divergent dearomative carbonylation reactions of benzene derivatives by tolerating various nucleophiles in combination with alcohols or amines under CO-gas-free conditions, thus providing modular access to functionalized esters or amides. The tunable synthesis of 1,3- or 1,4-cyclohexadienes as well as the construction of carbon quaternary centers further highlight the versatility of this dearomatization. Diverse late-stage modifications and derivatizations towards synthetically challenging and bioactive molecules reveal the synthetic utility. A possible mechanism was proposed based on control experiments and intermediate tracking.
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Affiliation(s)
- Ming-Yang Wang
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Wei-Long Zeng
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Lin Chen
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Yu-Fei Yuan
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Wei Li
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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2
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Li J, Wang G, Guo W, Jiang J, Wang J. H 8-BINOL-Derived Chiral η 6-Benzene Ligands: New Opportunities for the Ruthenium-Catalyzed Asymmetric C-H Activation. Angew Chem Int Ed Engl 2024; 63:e202405782. [PMID: 38679580 DOI: 10.1002/anie.202405782] [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: 04/25/2024] [Accepted: 04/25/2024] [Indexed: 05/01/2024]
Abstract
Given the tremendous success of (p-cymene)RuII-catalyzed C-H activation over the past 20 years, the community has long been aware that the development of chiral η6-benzene (Ben) ligands should be a potent strategy for achieving the attractive but incredibly underdeveloped ruthenium(II)-catalyzed asymmetric C-H activation. However, it has rarely been achieved due to the severe difficulty in developing proper chiral Ben ligands. In particular, designing chiral Ben ligands by connecting a benzene fragment to a chiral framework including benzene rings remained an unsolved challenge until this effort. Here we present a novel class of axially chiral Ben ligands derived from readily available (S)-5,5',6,6',7,7',8,8'-octahydro-1,1'-bi-2-naphthol ((S)-H8-BINOL) in 4-8 steps. Notably, when coordinated with ruthenium, such chiral Ben ligand containing three benzene rings only forms one of the three possible isomeric BenRuII complexes. The related chiral BenRuII catalysts could effectively catalyze the asymmetric C-H activation of N-sulfonyl ketimines with alkynes, affording a range of chiral spirocyclic sultams in up to 99 % yield with up to >99 % ee. These catalysts are expected to find broad applications in future.
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Affiliation(s)
- Junxuan Li
- School of Chemistry, Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, and Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Guodong Wang
- School of Chemistry, Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, and Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Weicong Guo
- School of Chemistry, Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, and Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Jijun Jiang
- School of Chemistry, Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, and Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Jun Wang
- School of Chemistry, Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, and Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
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3
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Boym MA, Pototskiy RA, Podyacheva ES, Chusov DA, Nelyubina YV, Perekalin DS. Planar-chiral arene ruthenium complexes: synthesis, separation of enantiomers, and application for catalytic C-H activation. Chem Commun (Camb) 2024; 60:4491-4494. [PMID: 38567466 DOI: 10.1039/d4cc00181h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Heating tert-butyl-tetraline with [(p-cymene)RuCl2]2 produces the racemic complex [(arene)RuCl2]2, which can be separated into enantiomers by chromatography of its diastereomeric adducts with chiral phosphine ligand. The resolved chiral complex catalyzes C-H activation of N-methoxy-benzamides and their annulation with N-vinyl-pivaloyl amide giving dihydroisoquinolones in 50-80% yields and with 40-80% enantiomeric excess.
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Affiliation(s)
- Mikhail A Boym
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow, 119334, Russia.
- National Research University Higher School of Economics, 7 Vavilova str., Moscow, 117312, Russia
| | - Roman A Pototskiy
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow, 119334, Russia.
| | - Evgeniya S Podyacheva
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow, 119334, Russia.
- National Research University Higher School of Economics, 7 Vavilova str., Moscow, 117312, Russia
| | - Denis A Chusov
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow, 119334, Russia.
- National Research University Higher School of Economics, 7 Vavilova str., Moscow, 117312, Russia
| | - Yulia V Nelyubina
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow, 119334, Russia.
- Moscow Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny, 141700, Russia
| | - Dmitry S Perekalin
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Moscow, 119334, Russia.
- National Research University Higher School of Economics, 7 Vavilova str., Moscow, 117312, Russia
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4
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Dočekal V, Koucký F, Císařová I, Veselý J. Organocatalytic desymmetrization provides access to planar chiral [2.2]paracyclophanes. Nat Commun 2024; 15:3090. [PMID: 38600078 PMCID: PMC11006895 DOI: 10.1038/s41467-024-47407-0] [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: 12/19/2023] [Accepted: 04/01/2024] [Indexed: 04/12/2024] Open
Abstract
Planar chiral [2.2]paracyclophanes consist of two functionalized benzene rings connected by two ethylene bridges. These organic compounds have a wide range of applications in asymmetric synthesis, as both ligands and catalysts, and in materials science, as polymers, energy materials and dyes. However, these molecules can only be accessed by enantiomer separation via (a) time-consuming chiral separations and (b) kinetic resolution approaches, often with a limited substrate scope, yielding both enantiomers. Here, we report a simple, efficient, metal-free protocol for organocatalytic desymmetrization of prochiral diformyl[2.2]paracyclophanes. Our detailed experimental mechanistic study highlights differences in the origin of enantiocontrol of pseudo-para and pseudo-gem diformyl derivatives in NHC catalyzed desymmetrizations based on whether a key Breslow intermediate is irreversibly or reversibly formed in this process. This gram-scale reaction enables a wide range of follow-up derivatizations of carbonyl groups, producing various enantiomerically pure planar chiral [2.2]paracyclophane derivatives, thereby underscoring the potential of this method.
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Affiliation(s)
- Vojtěch Dočekal
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43, Prague, 2, Czech Republic.
| | - Filip Koucký
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43, Prague, 2, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43, Prague, 2, Czech Republic
| | - Jan Veselý
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43, Prague, 2, Czech Republic.
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5
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Chen W, Jiang J, Wang J. Asymmetric Ruthenium-Catalyzed C-H Activation by a Versatile Chiral-Amide-Directing Strategy. Angew Chem Int Ed Engl 2024; 63:e202316741. [PMID: 38102747 DOI: 10.1002/anie.202316741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 12/15/2023] [Accepted: 12/15/2023] [Indexed: 12/17/2023]
Abstract
A versatile and readily available chiral amide directing group has been developed for the ruthenium(II)-catalyzed asymmetric C-H activation. Asymmetric C-H activation of the related chiral benzamides with various olefins, aldehydes and propargylic alcohols has been accomplished with high stereoselectivities, affording a series of chiral products including 3,4-dihydroisocoumarins (up to 96 % ee), isocoumarins (up to 92 % ee), phthalides (up to 99 % ee), chiral bicyclo[2.2.1]heptanes (>20 : 1 dr), 4-alkylidene-3,4-dihydroisocoumarins (up to 97 % ee) and allenes (>20 : 1 dr). Importantly, our methodologies enabled concise syntheses of many biologically active compounds and natural products (e.g., Montroumarin, Cyclosporone E, Cyclosporone Q, Concentricolide, Chuangxinol, and Eleutherol).
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Affiliation(s)
- Wenkun Chen
- School of Chemistry, Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, 510006, Guangzhou, P. R. China
| | - Jijun Jiang
- School of Chemistry, Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, 510006, Guangzhou, P. R. China
| | - Jun Wang
- School of Chemistry, Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education, Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, Sun Yat-Sen University, 510006, Guangzhou, P. R. China
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6
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Wen M, Zhang M, Gu F, Geng Y, Liu X, Wu Q, Yang X. Synthesis of spiropyrans via Ru(II)-catalyzed coupling of 3-aryl-2 H-benzo[ b][1,4]oxazines with benzoquinones. Org Biomol Chem 2024; 22:998-1009. [PMID: 38186088 DOI: 10.1039/d3ob01971c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
An efficient Ru(II)-catalyzed C-H activation-based spiroannulation of benzoxazines with the easily available benzoquinone and N-sulfonyl quinone monoimine has been realized, providing a straightforward strategy to access NH-containing spiropyrans in moderate to good yields with good functional group compatibility. The procedure features atom- and step-economy, mild conditions, and excellent chemoselectivity. Moreover, a catalytically competent five-membered cycloruthenated complex has been isolated.
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Affiliation(s)
- Mengke Wen
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
- College of Sciences, Northeastern University, Shenyang, 110819, China
| | - Mengying Zhang
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Fan Gu
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Yuehua Geng
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Xiangyang Liu
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Qingnan Wu
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Xifa Yang
- Institute of Pesticide, College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
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7
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Sau S, Mukherjee K, Kondalarao K, Gandon V, Sahoo AK. Probing Chiral Sulfoximine Auxiliaries in Ru(II)-Catalyzed One-Pot Asymmetric C-H Hydroarylation and Annulations with Alkynes. Org Lett 2023; 25:7667-7672. [PMID: 37844260 DOI: 10.1021/acs.orglett.3c02969] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
Developed herein is a chiral sulfoximine-enabled Ru(II)-catalyzed asymmetric C-H activation/functionalization involving intramolecular hydroarylation and functionalization/annulation of alkynes. This process constructs dihydrobenzofuran- or indoline-fused isoquinolinones having a tertiary or quaternary stereocenter with good yields and enantioselectivities (up to 97:3 enantiomeric ratio). The chiral sulfoxide precursor used in synthesizing the enantiopure sulfoximines is spontaneously eliminated during the reaction. It can be recovered without losing enantiopurity (∼99% enantiomeric excess) and reused.
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Affiliation(s)
- Somratan Sau
- School of Chemistry, University of Hyderabad, Hyderabad, Telangana 500046, India
| | - Kallol Mukherjee
- School of Chemistry, University of Hyderabad, Hyderabad, Telangana 500046, India
| | - Koneti Kondalarao
- School of Chemistry, University of Hyderabad, Hyderabad, Telangana 500046, India
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182, Université Paris-Saclay, 91405 Orsay, France
| | - Akhila K Sahoo
- School of Chemistry, University of Hyderabad, Hyderabad, Telangana 500046, India
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8
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Zhang M, He Y, Li S, Geng Y, Liu X, Yang X. Synthesis of spiropyrans and arylquinones via Ru(II)-catalyzed condition-controlled coupling of 3-aryl-2 H-benzoxazinones with benzoquinones. Chem Commun (Camb) 2023; 59:11704-11707. [PMID: 37700730 DOI: 10.1039/d3cc03395c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
Ru(II)-catalyzed condition-controlled divergent coupling between 3-aryl-2H-benzoxazin-2-ones and benzoquinones has been realized under operationally simple conditions, affording a series of structurally stable spiropyrans and valuable arylquinones. The potential of this method is also demonstrated by scale-up synthesis and derivatization. Additionally, an unprecedented cycloruthenated complex has been identified as a key intermediate.
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Affiliation(s)
- Mengying Zhang
- College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Yuhao He
- College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Song Li
- College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Yuehua Geng
- College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Xiangyang Liu
- College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
| | - Xifa Yang
- College of Plant Protection, Henan Agricultural University, Zhengzhou, 450002, China.
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9
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Liu W, Li H, Huo Y, Yao Q, Duan W. Recent Progress in Research on [2.2]Paracyclophane-Based Dyes. Molecules 2023; 28:molecules28072891. [PMID: 37049653 PMCID: PMC10095835 DOI: 10.3390/molecules28072891] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/22/2023] [Accepted: 03/22/2023] [Indexed: 04/14/2023] Open
Abstract
In recent years, the [2.2]paracyclophane (PCP) ring has attracted extensive attention due to its features of providing not only chirality and electron-donating ability but also steric hindrance, which reduces intermolecular π-π stacking interactions and thereby improves the fluorescence properties of dyes. To date, some circularly polarized luminescence (CPL)-active small organic molecules based on the PCP skeleton have been reviewed; however, the application of the PCP ring in improving the photophysical properties of fluorescent dyes is still limited, and new molecular design strategies are still required. This review summarizes and promotes the application of PCP in fluorescent dye design, fluorescence detection, and CPL modulation. We expect that this review will provide readers with a comprehensive understanding of the PCP skeleton and lead to further improvement in fluorescent dye design.
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Affiliation(s)
- Wenjing Liu
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, China
| | - Huabin Li
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, China
- Shandong Xinfa Ruijie New Material Co. Ltd., Liaocheng 252000, China
| | - Yanmin Huo
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, China
| | - Qingxia Yao
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, China
| | - Wenzeng Duan
- School of Chemistry and Chemical Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, China
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10
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Kong L, Zou Y, Li XX, Zhang XP, Li X. Rhodium-catalyzed enantioselective C-H alkynylation of sulfoxides in diverse patterns: desymmetrization, kinetic resolution, and parallel kinetic resolution. Chem Sci 2023; 14:317-322. [PMID: 36687346 PMCID: PMC9811495 DOI: 10.1039/d2sc05310a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 12/01/2022] [Indexed: 12/05/2022] Open
Abstract
Rhodium-catalyzed enantioselective C-H alkynylation of achiral and racemic sulfoxides is disclosed with alkynyl bromide as the alkynylating reagent. A wide range of chiral sulfoxides have been constructed in good yield and excellent enantioselectivity (up to 99% ee, s-factor up to > 500) via desymmetrization, kinetic resolution, and parallel kinetic resolution under mild reaction conditions. The high enantioselectivity was rendered by the chiral cyclopentadienyl rhodium(iii) catalyst paired with a chiral carboxamide additive. The interactions between the chiral catalyst, the sulfoxide, and the chiral carboxylic amide during the C-H bond cleavage offer the asymmetric induction, which is validated by DFT calculations. The chiral carboxamide functions as a base to promote C-H activation and offers an additional chiral environment during the C-H cleavage.
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Affiliation(s)
- Lingheng Kong
- School of Chemistry and Chemical Engineering, Shaanxi Normal UniversityXi'an 710062China
| | - Yun Zou
- School of Chemistry and Chemical Engineering, Shaanxi Normal UniversityXi'an 710062China
| | - Xiao-Xi Li
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong UniversityQingdao 266237China
| | - Xue-Peng Zhang
- School of Chemistry and Chemical Engineering, Shaanxi Normal UniversityXi'an 710062China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal UniversityXi'an 710062China,Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Sciences, Shandong UniversityQingdao 266237China
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11
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Li Y, Liou Y, Oliveira JCA, Ackermann L. Ruthenium(II)/Imidazolidine Carboxylic Acid-Catalyzed C-H Alkylation for Central and Axial Double Enantio-Induction. Angew Chem Int Ed Engl 2022; 61:e202212595. [PMID: 36108175 PMCID: PMC9828380 DOI: 10.1002/anie.202212595] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Indexed: 01/12/2023]
Abstract
Enantioselective C-H activation has surfaced as a transformative toolbox for the efficient assembly of chiral molecules. However, despite of major advances in rhodium and palladium catalysis, ruthenium(II)-catalyzed enantioselective C-H activation has thus far largely proven elusive. In contrast, we herein report on a ruthenium(II)-catalyzed highly regio-, diastereo- and enantioselective C-H alkylation. The key to success was represented by the identification of novel C2-symmetric chiral imidazolidine carboxylic acids (CICAs), which are easily accessible in a one-pot fashion, as highly effective chiral ligands. This ruthenium/CICA system enabled the efficient installation of central and axial chirality, and featured excellent branched to linear ratios with generally >20 : 1 dr and up to 98 : 2 er. Mechanistic studies by experiment and computation were carried out to understand the catalyst mode of action.
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Affiliation(s)
- Yanjun Li
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Yan‐Cheng Liou
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
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12
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Hu P, Liu B, Wang F, Mi R, Li XX, Li X. A Stereodivergent–Convergent Chiral Induction Mode in Atroposelective Access to Biaryls via Rhodium-Catalyzed C–H Bond Activation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Panjie Hu
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Bingxian Liu
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Fen Wang
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Ruijie Mi
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, China
| | - Xiao-Xi Li
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
- Institute of Molecular Sciences and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao 266237, China
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13
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Qian PF, Zhou T, Li JY, Zhou YB, Shi BF. Ru(II)/Chiral Carboxylic Acid-Catalyzed Asymmetric [4 + 3] Annulation of Sulfoximines with α,β-Unsaturated Ketones. ACS Catal 2022. [DOI: 10.1021/acscatal.2c03531] [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)
- Pu-Fan Qian
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Tao Zhou
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Jun-Yi Li
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yi-Bo Zhou
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Bing-Feng Shi
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan 450001, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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14
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An Y, Zhang XY, Ding YN, Li Y, Liu XY, Liang YM. Enantioselective Synthesis of Both Axially and Planar Chiral Ferrocenes via Axial-to-Planar Diastereoinduction. Org Lett 2022; 24:7294-7299. [PMID: 36178106 DOI: 10.1021/acs.orglett.2c02707] [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
Ferrocenes with planar chirality have emerged as an important class of scaffolds for ligands in asymmetric catalysis; however, ferrocene molecules with polychiral structures have not been well explored. Herein, both axially and planar chiral ferrocenes were synthesized via palladium/chiral norbornene cooperative catalysis and axial-to-planar diastereoinduction. In this work, chiral norbornene was used to stereoselectively control the aromatic axial chirality, and further selectivity induced C(sp2)-H activation for ferrocene planar chirality. Based on density functional theory calculations, the catalytic model of chiral norbornene with the substrate and the axial-to-planar diastereoinduction process were confirmed.
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Affiliation(s)
- Yang An
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Xiao-Yan Zhang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Ya-Nan Ding
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Yuke Li
- Department of Chemistry and Centre for Scientific Modeling and Computation, Chinese University of Hong Kong, Shatin, Hong Kong, China
| | - Xue-Yuan Liu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, Gansu 730000, China
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Yoshino T. Enantioselective C–H Functionalization Using High-Valent Group 9 Metal Catalysts. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20220168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo 060-0812
- Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo 060-0812
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