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Imamoto T. P-Stereogenic Phosphorus Ligands in Asymmetric Catalysis. Chem Rev 2024; 124:8657-8739. [PMID: 38954764 DOI: 10.1021/acs.chemrev.3c00875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Chiral phosphorus ligands play a crucial role in asymmetric catalysis for the efficient synthesis of useful optically active compounds. They are largely categorized into two classes: backbone chirality ligands and P-stereogenic phosphorus ligands. Most of the reported ligands belong to the former class. Privileged ones such as BINAP and DuPhos are frequently employed in a wide range of catalytic asymmetric transformations. In contrast, the latter class of P-stereogenic phosphorus ligands has remained a small family for many years mainly because of their synthetic difficulty. The late 1990s saw the emergence of novel P-stereogenic phosphorus ligands with their superior enantioinduction ability in Rh-catalyzed asymmetric hydrogenation reactions. Since then, numerous P-stereogenic phosphorus ligands have been synthesized and used in catalytic asymmetric reactions. This Review summarizes P-stereogenic phosphorus ligands reported thus far, including their stereochemical and electronic properties that afford high to excellent enantioselectivities. Examples of reactions that use this class of ligands are described together with their applications in the construction of key intermediates for the synthesis of optically active natural products and therapeutic agents. The literature covered dates back to 1968 up until December 2023, centering on studies published in the late 1990s and later years.
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Affiliation(s)
- Tsuneo Imamoto
- Department of Chemistry, Graduate School of Science, Chiba University, Chiba 263-8522, Japan
- Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, Sapporo, Hokkaido 060-8628, Japan
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2
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Li B, Wang Z, Luo Y, Wei H, Chen J, Liu D, Zhang W. Nickel-catalyzed asymmetric hydrogenation for the preparation of α-substituted propionic acids. Nat Commun 2024; 15:5482. [PMID: 38942809 PMCID: PMC11213955 DOI: 10.1038/s41467-024-49801-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 06/20/2024] [Indexed: 06/30/2024] Open
Abstract
Transition metal-catalyzed asymmetric hydrogenation is one of the most efficient methods for the preparation of chiral α-substituted propionic acids. However, research on this method, employing cleaner earth-abundant metal catalysts, is still insufficient in both academic and industrial contexts. Herein, we report an efficient nickel-catalyzed asymmetric hydrogenation of α-substituted acrylic acids affording the corresponding chiral α-substituted propionic acids with up to 99.4% ee (enantiomeric excess) and 10,000 S/C (substrate/catalyst). In particular, this method can be used to obtain (R)-dihydroartemisinic acid with 99.8:0.2 dr (diastereomeric ratio) and 5000 S/C, which is an essential intermediate for the preparation of the antimalarial drug Artemisinin. The reaction mechanism has been investigated via experiments and DFT (Density Functional Theory) calculations, which indicate that the protonolysis of the C-Ni bond of the key intermediate via an intramolecular proton transfer from the carboxylic acid group of the substrate, is the rate-determining step.
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Affiliation(s)
- Bowen Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Zhiling Wang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Yicong Luo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Hanlin Wei
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Jianzhong Chen
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
| | - Delong Liu
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
- School of Pharmacy, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
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3
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Xu D, Du B, Ji Y, Sun H, Wang T, Yin X. Stereoselective transport of 2-aryl propionic acid enantiomers in porous media subjected to chiral organic acids. JOURNAL OF HAZARDOUS MATERIALS 2024; 468:133824. [PMID: 38377915 DOI: 10.1016/j.jhazmat.2024.133824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/31/2024] [Accepted: 02/16/2024] [Indexed: 02/22/2024]
Abstract
The study examined the transport behavior of the 2-aryl propionic acid (2-APA) chiral pharmaceutical enantiomers by means of a laboratory-scale saturated quartz sand column experiment. Four typical of 2-APA and their enantiomers were selected for the study under different types of chiral organic acids (COAs)-mediated effects. Differences in the transport of the 2-APA enantiomeric pairs have been identified in response to various pH, types of COAs, and enantiomeric structures of COAs. Redundancy analysis identified the factors responsible for the largest differences in transport of 2-APA enantiomeric pairs, while spectroscopic characterization and density function theory (DFT) studies elucidated the underlying mechanisms contributing to the differences in transport of enantiomeric pairs. Obvious correlations among homochirality or heterochirality between COAs and 2-APA enantiomeric pairs were observed for changes in the mobility of 2-APA. The results indicate widespread COAs significantly affect the transport behavior of chiral man-made chemicals, suggesting more attention is needed to fill the gap in the perception of the transport behavior of chiral compounds.
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Affiliation(s)
- Duo Xu
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, PR China
| | - Bowen Du
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, PR China
| | - Yantian Ji
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, PR China
| | - Huimin Sun
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling Shaanxi, 712100, PR China
| | - Tiecheng Wang
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, PR China
| | - Xianqiang Yin
- College of Natural Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, PR China; Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China, Ministry of Agriculture and Rural Affairs, Yangling Shaanxi, 712100, PR China.
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4
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Vollgraff T, Doppiu A, Sundermeyer J. Dihydroguaiazulenide Complexes and Catalysts of Group 8-12 Transition Metals: Ligands from Renewable Feedstock Replace, even Outmatch Petrochemical Based Cyclopentadienyl Chemistry. Chemistry 2024; 30:e202302994. [PMID: 37955549 DOI: 10.1002/chem.202302994] [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: 09/14/2023] [Revised: 11/09/2023] [Accepted: 11/09/2023] [Indexed: 11/14/2023]
Abstract
We present an in-depth study of the sterically demanding Cp-synthon (8-H-GuaH)Li isolated from natural product guaiazulene (Gua) as a ligand transfer reagent towards late transition metal complex precursors. The synthesis and full characterization of selected, essentially unexplored homo- and heteroleptic 8-H-guaiazulenide complexes of iron, ruthenium, cobalt, rhodium, platinum, copper and zinc are discussed in detail. In order to demonstrate their potential in catalytic applications, [(GuaH)PtMe3 ] was selected. The latter proved an even higher catalytic activity in light induced olefin hydrosilylation at catalyst loads as low as 5 ppm than classical [CpPtMe3 ] in a typical test reaction of silicone elastomer fabrication. Our results demonstrate that traditional petrochemical based Cp metal chemistry and catalysis can be replaced, sometimes even outmatched by superior catalysts based on cheap building blocks from renewable feedstock.
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Affiliation(s)
- Tobias Vollgraff
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW), Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35043, Marburg, Germany
| | - Angelino Doppiu
- Umicore AG&Co. KG, PMC R&D, Rodenbacher Chaussee 4, 63457, Hanau-Wolfgang, Germany
| | - Jörg Sundermeyer
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW), Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35043, Marburg, Germany
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5
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Xu L, Wu YJ, Gao RT, Li SY, Liu N, Wu ZQ. Visible Helicity Induction and Memory in Polyallene toward Circularly Polarized Luminescence, Helicity Discrimination, and Enantiomer Separation. Angew Chem Int Ed Engl 2023; 62:e202217234. [PMID: 36745050 DOI: 10.1002/anie.202217234] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/31/2023] [Accepted: 02/06/2023] [Indexed: 02/07/2023]
Abstract
Inspired by biological helices (e.g., DNA), artificial helical polymers have attracted intense attention. However, precise synthesis of one-handed helices from achiral materials remains a formidable challenge. Herein, a series of achiral poly(biphenyl allene)s with controlled molar mass and low dispersity were prepared and induced into one-handed helices using chiral amines and alcohols. The induced one-handed helix was simultaneously memorized, even after the chiral inducer was removed. The switchable induction processes were visible to naked eye; the achiral polymers exhibited blue emission (irradiated at 365 nm), whereas the induced one-handed helices exhibited cyan emission with clear circularly polarized luminescence. The induced helices formed stable gels in various solvents with helicity discrimination ability: the same-handed helix gels were self-healing, whereas the gels of opposite-handed helicity were self-sorted. Moreover, the induced helices could separate enantiomers via enantioselective crystallization with high efficiency and switchable enantioselectivity.
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Affiliation(s)
- Lei Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China.,Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Huaibei Normal University, Huaibei, Anhui, 235000, P. R. China
| | - Yong-Jie Wu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering, and Anhui Key Laboratory of Advanced Functional Materials and Devices, Hefei University of Technology, Hefei, Anhui Province, 230009, China
| | - Run-Tan Gao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Shi-Yi Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
| | - Na Liu
- The School of Pharmaceutical Sciences, Jilin University, 1266 Fujin Road, Changchun, Jilin, 130021, P. R. China
| | - Zong-Quan Wu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, China
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6
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Wang Q, Qi Y, Gao X, Gong L, Wan R, Lei W, Wang Z, Mao J, Guan H, Li W, Walsh PJ. Recent trends and developments in the asymmetric synthesis of profens. GREEN SYNTHESIS AND CATALYSIS 2023. [DOI: 10.1016/j.gresc.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
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7
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Wang L, Li T, Perveen S, Zhang S, Wang X, Ouyang Y, Li P. Nickel-Catalyzed Enantioconvergent Carboxylation Enabled by a Chiral 2,2'-Bipyridine Ligand. Angew Chem Int Ed Engl 2022; 61:e202213943. [PMID: 36300599 DOI: 10.1002/anie.202213943] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Indexed: 11/24/2022]
Abstract
In contrast to previous approaches to chiral α-aryl carboxylic acids that based on reactions using hazardous gases, pressurized setup and mostly noble metal catalysts, in this work, a nickel-catalyzed general, efficient and highly enantioselective carboxylation reaction of racemic benzylic (pseudo)halides under mild conditions using atmospheric CO2 has been developed. A unique chiral 2,2'-bipyridine ligand named Me-SBpy featuring compact polycyclic skeleton enabled both high reactivity and stereoselectivity. The utility of this method has been demonstrated by synthesis of various chiral α-aryl carboxylic acids (30 examples, up to 95 % yield and 99 : 1 er), including profen family anti-inflammatory drugs and transformations using the acids as key intermediates. Based on mechanistic experimental results, a plausible catalytic cycle involving Ni-complex/radical equilibrium and Lewis acid-assisted CO2 activation has been proposed.
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Affiliation(s)
- Linghua Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Tao Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Saima Perveen
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Shuai Zhang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Xicheng Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Yizhao Ouyang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China
| | - Pengfei Li
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710054, China.,School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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8
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Shekurov RP, Zagidullin AA, Khrizanforov MN, Islamov DR, Gerasimova TP, Akhmatkhanova FF, Miluykov VA. Ferrocene-based P-chiral amidophosphinate: stereoselective synthesis and X-ray structural study. Dalton Trans 2022; 51:18603-18609. [PMID: 36444982 DOI: 10.1039/d2dt02930h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Racemic and enantiopure ferrocene-based P-chiral amidophosphinates have been simply and stereoselectively synthesized by ortho-lithiation of rac- or (R)-Ugi's amine and further reaction with amidochlorophenylphosphinate Cl-P(O)(Ph)NEt2. This is the first example of an asymmetric reaction of ortho-lithiated Ugi's amine with tetracoordinated phosphorus(V) chlorides. The structures of rac- and (R)-Ugi's amine ferrocenyl(phenyl)phosphinic acid N,N-diethylamide have been extensively studied experimentally (NMR, X-ray analysis, electrochemistry). The CV first peak refers to the oxidation of the amine fragment, which is clearly seen when (R)-Ugi's amine ferrocenyl(phenyl)phosphinic acid N,N-diethylamide reacts with anhydrous acid. The addition of two equivalents of CF3COOH leads to the protonation of nitrogen atoms, and a classical reversible wave of oxidation of Fe(II) to Fe(III) is observed.
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Affiliation(s)
- Ruslan P Shekurov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov Str. 8, Kazan, Russian Federation.
| | - Almaz A Zagidullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov Str. 8, Kazan, Russian Federation.
| | - Mikhail N Khrizanforov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov Str. 8, Kazan, Russian Federation. .,Aleksander Butlerov Institute of Chemistry, Kazan Federal University, 1/29 Lobachevskogo str., Kazan, 420008, Russian Federation
| | - Daut R Islamov
- Aleksander Butlerov Institute of Chemistry, Kazan Federal University, 1/29 Lobachevskogo str., Kazan, 420008, Russian Federation
| | - Tatiana P Gerasimova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov Str. 8, Kazan, Russian Federation.
| | - Farida F Akhmatkhanova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov Str. 8, Kazan, Russian Federation.
| | - Vasily A Miluykov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Arbuzov Str. 8, Kazan, Russian Federation.
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9
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Advanced Application of Planar Chiral Heterocyclic Ferrocenes. INORGANICS 2022. [DOI: 10.3390/inorganics10100152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This manuscript is reviewing the superior catalytic activity and selectivity of ferrocene ligands in a wide range of reactions: reduction of ketones, hydrogenation of olefins, hydroboration, cycloaddition, enantioselective synthesis of biaryls, Tsuji–Trost allylation. Moreover, the correlation between a ligand structure and its catalytic activity is discussed in this review.
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10
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Ralbovsky NM, Smith JP. Process analytical technology and its recent applications for asymmetric synthesis. Talanta 2022; 252:123787. [DOI: 10.1016/j.talanta.2022.123787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 07/25/2022] [Indexed: 11/27/2022]
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11
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Stepnicka P, Horký F. The coordination and catalytic chemistry of phosphanylferrocene chalcogenides. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200276] [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)
- Petr Stepnicka
- Charles University in Prague Department of Inorganic Chemistry, Faculty of Science Hlavova 2030 12840 Prague CZECH REPUBLIC
| | - Filip Horký
- Charles University: Univerzita Karlova Department of Inorganic Chemistry CZECH REPUBLIC
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12
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Yu J, Zhu H, Zhang X, Chen GQ. Development of C2-Symmetric Chiral Diphosphine Ligands for Highly Enantioselective Hydrogenation Assisted by Ion Pairing. Org Lett 2022; 24:2744-2749. [PMID: 35377672 DOI: 10.1021/acs.orglett.2c00852] [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
A new series of C2-symmetrical chiral ferrocene-based diphosphino-ethane ligands termed as f-DPE were developed. Assisted by the ion pairing interaction with the ligand, a wide scope of 2-substituted acrylic acids was hydrogenated to obtain chiral propanoic acids with high yields and enantioselectivities. The well-known anti-inflammatory drugs ibuprofen, naproxen, and flurbiprofen could be synthesized efficiently. In addition, the synthetic utilities of the current method were demonstrated by gram-scale experiments.
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Affiliation(s)
- Jianfei Yu
- Medi-X Pingshan and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518000, People's Republic of China
| | - Haowei Zhu
- Medi-X Pingshan and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518000, People's Republic of China
| | - Xumu Zhang
- Medi-X Pingshan and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518000, People's Republic of China
| | - Gen-Qiang Chen
- Academy for Advanced Interdisciplinary Studies and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, People's Republic of China
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13
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Lou Y, Wei J, Li M, Zhu Y. Distal Ionic Substrate-Catalyst Interactions Enable Long-Range Stereocontrol: Access to Remote Quaternary Stereocenters through a Desymmetrizing Suzuki-Miyaura Reaction. J Am Chem Soc 2022; 144:123-129. [PMID: 34979078 PMCID: PMC9549467 DOI: 10.1021/jacs.1c12345] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Spatial distancing of a substrate's reactive group and nonreactive catalyst-binding group from its pro-stereogenic element presents substantial hurdles in asymmetric catalysis. In this context, we report a desymmetrizing Suzuki-Miyaura reaction that establishes chirality at a remote quaternary carbon. The anionic, chiral catalyst exerts stereocontrol through electrostatic steering of substrates, even as the substrate's reactive group and charged catalyst-binding group become increasingly distanced. This study demonstrates that precise long-range stereocontrol is achievable by engaging ionic substrate-ligand interactions at a distal position.
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Affiliation(s)
- Yazhou Lou
- Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Junqiang Wei
- Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Mingfeng Li
- Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Ye Zhu
- Department of Chemistry, Faculty of Science, National University of Singapore, 3 Science Drive 3, Singapore 117543
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14
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Yang P, Sun Y, Fu K, Zhang L, Yang G, Yue J, Ma Y, Zhou JS, Tang B. Enantioselective Synthesis of Chiral Carboxylic Acids from Alkynes and Formic Acid by Nickel‐Catalyzed Cascade Reactions: Facile Synthesis of Profens. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Peng Yang
- College of Chemistry Chemical Engineering and Materials Science Key Laboratory of Molecular and Nano Probes Ministry of Education Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong Institutes of Biomedical Sciences Shandong Normal University Jinan 250014 P. R. China
| | - Yaxin Sun
- College of Chemistry Chemical Engineering and Materials Science Key Laboratory of Molecular and Nano Probes Ministry of Education Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong Institutes of Biomedical Sciences Shandong Normal University Jinan 250014 P. R. China
| | - Kaiyue Fu
- College of Chemistry Chemical Engineering and Materials Science Key Laboratory of Molecular and Nano Probes Ministry of Education Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong Institutes of Biomedical Sciences Shandong Normal University Jinan 250014 P. R. China
| | - Li Zhang
- College of Chemistry Chemical Engineering and Materials Science Key Laboratory of Molecular and Nano Probes Ministry of Education Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong Institutes of Biomedical Sciences Shandong Normal University Jinan 250014 P. R. China
| | - Guang Yang
- College of Chemistry Chemical Engineering and Materials Science Key Laboratory of Molecular and Nano Probes Ministry of Education Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong Institutes of Biomedical Sciences Shandong Normal University Jinan 250014 P. R. China
| | - Jieyu Yue
- College of Chemistry Chemical Engineering and Materials Science Key Laboratory of Molecular and Nano Probes Ministry of Education Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong Institutes of Biomedical Sciences Shandong Normal University Jinan 250014 P. R. China
| | - Yu Ma
- College of Chemistry Chemical Engineering and Materials Science Key Laboratory of Molecular and Nano Probes Ministry of Education Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong Institutes of Biomedical Sciences Shandong Normal University Jinan 250014 P. R. China
| | - Jianrong Steve Zhou
- State Key Laboratory of Chemical Oncogenomics Key Laboratory of Chemical Genomics School of Chemical Biology and Biotechnology Peking University Shenzhen Graduate School, Room F312 2199 Lishui Road Nanshan District Shenzhen 518055 P. R. China
| | - Bo Tang
- College of Chemistry Chemical Engineering and Materials Science Key Laboratory of Molecular and Nano Probes Ministry of Education Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong Institutes of Biomedical Sciences Shandong Normal University Jinan 250014 P. R. China
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15
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Yang P, Sun Y, Fu K, Zhang L, Yang G, Yue J, Ma Y, Zhou JS, Tang B. Enantioselective Synthesis of Chiral Carboxylic Acids from Alkynes and Formic Acid by Nickel-Catalyzed Cascade Reactions: Facile Synthesis of Profens. Angew Chem Int Ed Engl 2022; 61:e202111778. [PMID: 34676957 DOI: 10.1002/anie.202111778] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/13/2021] [Indexed: 12/20/2022]
Abstract
We report a stereoselective conversion of terminal alkynes to α-chiral carboxylic acids using a nickel-catalyzed domino hydrocarboxylation-transfer hydrogenation reaction. A simple nickel/BenzP* catalyst displayed high activity in both steps of regioselective hydrocarboxylation of alkynes and subsequent asymmetric transfer hydrogenation. The reaction was successfully applied in enantioselective preparation of three nonsteroidal anti-inflammatory profens (>90 % ees) and the chiral fragment of AZD2716.
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Affiliation(s)
- Peng Yang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, P. R. China
| | - Yaxin Sun
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, P. R. China
| | - Kaiyue Fu
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, P. R. China
| | - Li Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, P. R. China
| | - Guang Yang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, P. R. China
| | - Jieyu Yue
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, P. R. China
| | - Yu Ma
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, P. R. China
| | - Jianrong Steve Zhou
- State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Room F312, 2199 Lishui Road, Nanshan District, Shenzhen, 518055, P. R. China
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Collaborative Innovation Center of Functionalized Probes for, Chemical Imaging in Universities of Shandong, Institutes of Biomedical Sciences, Shandong Normal University, Jinan, 250014, P. R. China
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16
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Sen A, Chikkali SH. C 1-Symmetric diphosphorus ligands in metal-catalyzed asymmetric hydrogenation to prepare chiral compounds. Org Biomol Chem 2021; 19:9095-9137. [PMID: 34617539 DOI: 10.1039/d1ob01207j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Asymmetric hydrogenation has remained an important and challenging research area in industry as well as academia due to its high atom economy and ability to induce chirality. Among several types of ligands, chiral bidentate phosphine ligands have played a pivotal role in developing asymmetric hydrogenation. Although C2-symmetric chiral bidentate phosphine ligands have dominated the field, it has been found that several C1-symmetric ligands are equally effective and, in many cases, have outperformed their C2-symmetric counterparts. This review evaluates the possibility of the use of C1-symmetric diphosphorus ligands in asymmetric hydrogenation to produce chiral compounds. The recent strategies and advances in the application of C1-symmetric diphosphorus ligands in the metal-catalyzed asymmetric hydrogenation of a variety of CC bonds have been summarized. The potential of diphosphorus ligands in asymmetric hydrogenation to produce pharmaceutical intermediates, bioactive molecules, drug molecules, agrochemicals, and fragrances is discussed. Although asymmetric hydrogenation appears to be a problem that has been resolved, a deep dive into the recent literature reveals that there are several challenges that are yet to be addressed. The current asymmetric hydrogenation methods mostly employ precious metals, which are depleting at a fast pace. Therefore, scientific interventions to perform asymmetric hydrogenation using base metals or earth-abundant metals that can compete with established precious metals hold significant potential.
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Affiliation(s)
- Anirban Sen
- Polyolefin Lab, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Sector 19, Kamla Nehru Nagar, Ghaziabad 201002, U. P., India
| | - Samir H Chikkali
- Polyolefin Lab, Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr Homi Bhabha Road, Pune 411008, India. .,Academy of Scientific and Innovative Research (AcSIR), Sector 19, Kamla Nehru Nagar, Ghaziabad 201002, U. P., India
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17
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Ha MW, Paek SM. Recent Advances in the Synthesis of Ibuprofen and Naproxen. Molecules 2021; 26:4792. [PMID: 34443379 PMCID: PMC8399189 DOI: 10.3390/molecules26164792] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 08/03/2021] [Accepted: 08/04/2021] [Indexed: 11/16/2022] Open
Abstract
Herein, we review the recent progress in the synthesis of representative nonsteroidal anti-inflammatory drugs (NSAIDs), ibuprofen and naproxen. Although these drugs were discovered over 50 years ago, novel practical and asymmetric approaches are still being developed for their synthesis. In addition, this endeavor has enabled access to more potent and selective derivatives from the key frameworks of ibuprofen and naproxen. The development of a synthetic route to ibuprofen and naproxen over the last 10 years is summarized, including developing methodologies, finding novel synthetic routes, and applying continuous-flow chemistry.
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Affiliation(s)
- Min-Woo Ha
- Jeju Research Institute of Pharmaceutical Sciences, College of Pharmacy, Jeju National University, 102 Jejudaehak-ro, Jeju 63243, Jeju-do, Korea;
- Interdisciplinary Graduate Program in Advanced Convergence Technology & Science, Jeju National University, 102 Jejudaehak-ro, Jeju 63243, Jeju-do, Korea
| | - Seung-Mann Paek
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, 501 Jinju-daero, Jinju 52828, Gyeongnam-do, Korea
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18
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Fan X, Zheng L, Yang Y, Dong X, Zhang X, Chung LW. A Computational Study of Asymmetric Hydrogenation of
2‐Phenyl
Acrylic Acids Catalyzed by a Rh(I) Catalyst with Ferrocenyl Chiral Bisphosphorus Ligand: The Role of
Ion‐Pair
Interaction
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiangru Fan
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Grubbs Institute Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Lini Zheng
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Grubbs Institute Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Yuhong Yang
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Grubbs Institute Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Xiu‐Qin Dong
- Key Laboratory of Biomedical Polymers, Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University Wuhan Hubei 430072 China
| | - Xumu Zhang
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Grubbs Institute Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Lung Wa Chung
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis and Shenzhen Grubbs Institute Southern University of Science and Technology Shenzhen Guangdong 518055 China
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19
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Wan F, Tang W. Phosphorus Ligands from the Zhang Lab: Design, Asymmetric Hydrogenation, and Industrial Applications. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000605] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Feng Wan
- State Key Laboratory of Bio‐Organic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Wenjun Tang
- State Key Laboratory of Bio‐Organic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
- School of Chemistry and Materials Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences 1 Sub‐lane Xiangshan Hangzhou Zhejiang 310024 China
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20
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Trouvé J, Gramage-Doria R. Beyond hydrogen bonding: recent trends of outer sphere interactions in transition metal catalysis. Chem Soc Rev 2021; 50:3565-3584. [DOI: 10.1039/d0cs01339k] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The implementation of interactions beyond hydrogen bonding in the 2nd coordination sphere of transition metal catalysts is rare. However, it has already shown great promise in last 5 years, providing new tools to control the activity and selectivity as here reviewed.
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21
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22
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Jin Y, Bao H, Sun W, Tong S. Enantioseparation of three constitutional isomeric 2-(methylphenyl)propanoic acids by countercurrent chromatography. J Chromatogr A 2020; 1637:461804. [PMID: 33352504 DOI: 10.1016/j.chroma.2020.461804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 11/27/2020] [Accepted: 12/10/2020] [Indexed: 10/22/2022]
Abstract
2-(3-Methylphenyl)propanic acid and 2-(4-methylphenyl)propanoic acid were successfully enantioseparated by countercurrent chromatography using hydroxypropyl-β-cyclodextrin (HP-β-CD) as a chiral selector. 2-(2-Methylphenyl)propanoic acid was also studied to compare the enantioseparation ability of three isomeric 2-(methylphenyl)propanoic acids. Totally 20 mg of 2-(3-methylphenyl)propanic acid and 20mg of 2-(4-methylphenyl)propanic acid were enantioseparated individually by countercurrent chromatography. Recovery for the (±)-2-(3-methylphenyl)propanic acid enantiomer was in the range of 85%-90% with 98.0%-98.8% purity and recovery for the (±)-2-(4-methylphenyl)propanic acid enantiomer was in the range of 80%-83% with 97.0%-98.0% purity. The enantioseparation factor in countercurrent chromatography for 2-(4-methylphenyl)propanic acid and 2-(3-methylphenyl)propanic acid were 1.31 and 1.26, and the peak resolution in HPLC reached 2.2 and 1.4. However, no enantioseparation could be found for 2-(2-methylphenyl)propanic acid. In addition, the inclusion complexes were investigated by UV spectrophotometer. The inclusion formation constant of inclusion complex between 2-(4-methylphenyl)propanic acid, 2-(3-methylphenyl)propanic acid, 2-(2-methylphenyl)propanic acid and HP-β-CD were determined as 121.73 mol/L, 78.12 mol/L and 53.18 mol/L, respectively. The present results showed that enantiorecognition was greatly affected by substituted positions of methyl group on the benzene ring. Combined with our previous results, the steric hindrance had a significant effect on inclusion interaction between HP-β-CD and racemic 2-(substitutedphenyl)propanoic acids. No enantiorecognition could be achieved for 2-(substitutedphenyl)propanoic acids with ortho-substituent group on benzene, while the influence of meta- and para- group on enantiorecognition varies with different substituent groups on benzene ring.
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Affiliation(s)
- Yang Jin
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Honglei Bao
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Wenyu Sun
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Shengqiang Tong
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, 310032, China.
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23
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An C, Shaw MH, Tharp A, Verma D, Li H, Wang H, Wang X. Enantioselective Enzymatic Reduction of Acrylic Acids. Org Lett 2020; 22:8320-8325. [PMID: 33048553 DOI: 10.1021/acs.orglett.0c02959] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An ene-reductase (ERED 36) with broad substrate specificity was identified, and optimization studies led to the development of an enzymatic protocol for the reduction of α,β-unsaturated acids under mild, aqueous conditions. The substrate scope includes aromatic- and aliphatic-substituted acrylic acids, as well as cyclic α,β-substituted acrylic acids, yielding chiral α-substituted acids with exquisite levels of enantioselectivity (>99% ee).
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Affiliation(s)
- Chihui An
- Department of Process Research & Development, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Megan H Shaw
- Department of Process Research & Development, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Annika Tharp
- Department of Process Research & Development, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Deeptak Verma
- Department of Process Research & Development, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Hongming Li
- Department of Process Research & Development, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Heather Wang
- Department of Process Research & Development, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
| | - Xiao Wang
- Department of Process Research & Development, MRL, Merck & Co., Inc., Rahway, New Jersey 07065, United States
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24
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Dong WW, Li YN, Chang X, Shen C, Wang CJ. Chiral Ugi-Type Amines: Practical Synthesis, Ligand Development, and Asymmetric Catalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Wu-Wei Dong
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Yi-Nan Li
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xin Chang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Chong Shen
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Chun-Jiang Wang
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
- State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China
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25
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Fanourakis A, Docherty PJ, Chuentragool P, Phipps RJ. Recent Developments in Enantioselective Transition Metal Catalysis Featuring Attractive Noncovalent Interactions between Ligand and Substrate. ACS Catal 2020; 10:10672-10714. [PMID: 32983588 PMCID: PMC7507755 DOI: 10.1021/acscatal.0c02957] [Citation(s) in RCA: 94] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/14/2020] [Indexed: 12/11/2022]
Abstract
Enantioselective transition metal catalysis is an area very much at the forefront of contemporary synthetic research. The development of processes that enable the efficient synthesis of enantiopure compounds is of unquestionable importance to chemists working within the many diverse fields of the central science. Traditional approaches to solving this challenge have typically relied on leveraging repulsive steric interactions between chiral ligands and substrates in order to raise the energy of one of the diastereomeric transition states over the other. By contrast, this Review examines an alternative tactic in which a set of attractive noncovalent interactions operating between transition metal ligands and substrates are used to control enantioselectivity. Examples where this creative approach has been successfully applied to render fundamental synthetic processes enantioselective are presented and discussed. In many of the cases examined, the ligand scaffold has been carefully designed to accommodate these attractive interactions, while in others, the importance of the critical interactions was only elucidated in subsequent computational and mechanistic studies. Through an exploration and discussion of recent reports encompassing a wide range of reaction classes, we hope to inspire synthetic chemists to continue to develop asymmetric transformations based on this powerful concept.
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Affiliation(s)
- Alexander Fanourakis
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Philip J. Docherty
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Padon Chuentragool
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom
| | - Robert J. Phipps
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom
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26
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Zhao Q, Chen C, Wen J, Dong XQ, Zhang X. Noncovalent Interaction-Assisted Ferrocenyl Phosphine Ligands in Asymmetric Catalysis. Acc Chem Res 2020; 53:1905-1921. [PMID: 32852187 DOI: 10.1021/acs.accounts.0c00347] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Noncovalent interactions are ubiquitous in nature and are responsible for the precision control in enzyme catalysis via the cooperation of multiple active sites. Inspired by this principle, noncovalent interaction-assisted transition metal catalysis has emerged recently as a powerful tool and has attracted intense interest. However, it is still highly desirable to develop efficient and operationally convenient ligands along this line with new structural motifs. Based on the specific nature of hydrogen bonding and ion pairing interactions, we developed a series of noncovalent interaction-assisted chiral ferrocenyl phosphine ligands, including Zhaophos, Wudaphos, and miscellaneous SPO-Wudaphos. Due to the assistance of noncovalent interactions, this catalytic mode is capable of achieving transition metal catalyzed asymmetric hydrogenation and other transformations with remarkable improvement of reactivity and selectivity. In some specific challenging cases, this probably represents one of the most productive methods. Moreover, these ligands are easily prepared, air stable, and highly tunable, meeting the requirements of industrial application.In this Account, we give a concise review of recent advances in asymmetric catalysis. By means of hydrogen bonding interactions, Rh- and Ir-Zhaophos complexes exhibited excellent activities and enantioselectivities in asymmetric hydrogenation of a wide range of substrates: C═C bonds of substituted conjugate alkenes with neutral hydrogen bond acceptors, including nitro groups, carbonyl groups (ketones, esters, amides, maleinimides, and anhydrides), ethers, and sulfones; C═N bonds of substituted iminium salts with chloride as an anionic hydrogen bond acceptor, including N-H imines and cyclic imines; N-heteroaromatic compounds with HCl as an additive, including unprotected quinolines, isoquinolines, and indoles; carbocation of substituted oxocarbenium ions. By means of ion pairing interactions, Rh-Wudaphos complexes enabled the catalytic asymmetric hydrogenation of α-substituted unsaturated carboxylic acids, carboxy-directed α,α-disubstituted terminal olefins, and sodium α-arylethenylsulfonates. Rh-SPO-Wudaphos utilized both hydrogen bonding and ion pairing interactions in asymmetric hydrogenation of α-substituted unsaturated carboxylic acids and phosphonic acids. In addition, Zhaophos has achieved highly selective intramolecular reductive amination and inter- and intramolecular asymmetric decarboxylative allylation. Investigations into mechanism implied that noncovalent interactions were involved in the catalytic cycle and played a critical role for both high reactivity and selectivity. Notably, a rare ionic hydrogenation pathway has been proposed in some cases. Furthermore, these catalytic systems have been used in the gram-scale synthesis of natural products and pharmaceuticals.
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Affiliation(s)
- Qingyang Zhao
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, P. R. China
| | - Caiyou Chen
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Jialin Wen
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518000, P.R. China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518000, P.R. China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences, Wuhan University, 430072 Wuhan, P.R. China
| | - Xumu Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518000, P.R. China
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27
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Du P, Lu XB. A Simple Strategy for the Preparation of P
-Chirogenic Trost Ligands with Different Absolute Configurations. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000833] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Peng Du
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 2 Linggong Road 116024 Dalian China
| | - Xiao-Bing Lu
- State Key Laboratory of Fine Chemicals; Dalian University of Technology; 2 Linggong Road 116024 Dalian China
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28
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Zhou MM, Chen G, Dang L. Enantioselective hydrosilylation of unsaturated carbon-heteroatom bonds (C[double bond, length as m-dash]N, C[double bond, length as m-dash]O) catalyzed by [Ru-S] complexes: a theoretical study. RSC Adv 2020; 10:9431-9437. [PMID: 35497244 PMCID: PMC9050042 DOI: 10.1039/c9ra10760f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 02/14/2020] [Indexed: 11/21/2022] Open
Abstract
A detailed theoretical study on the mechanism of enanthioselective hydrosilylation of imines and ketones catalyzed by the ruthenium(ii) thiolate catalyst [Ru–S] ([L*-Ru(SDmp)]+[BAr4F]−) with a chiral monodentate phosphine ligand is carried out in this work. We elucidate all the pathways leading to the main products or by products mediated by the [Ru–S] complex in order to have deep understanding of the chemoselectivity and enantioselectivity. The DFT (Density Functional Theory) calculations show that the reaction mechanism including: (1) Si–H bond cleavage by the dual activity of Ru–S bond; (2) the generation of a sulfur-stabilized silane cation; (3) the electrophilic attack of silane cation to NC/OC; (4) hydrogen transfer from Ru to carbon cation. The hydrosilylation products are found to be the final products rather than the dehydrogenative ones, which is consistent with the experimental results. The dehydrogenative silylation reaction pathways which give N- or O-silylated enamine/enol ether are reversible according to our calculations. The computational results also show that the electrophilic attack of silicon to NC/OC is the rate-determining step and the ee value can be improved significantly with more bulky model phosphine ligand based on the same calculation methods. A detailed theoretical study on the mechanism of enanthioselective hydrosilylation of imines and ketones catalyzed by the ruthenium(ii) thiolate catalyst with a chiral monodentate phosphine ligand is carried out in this work.![]()
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Affiliation(s)
- Miao-Miao Zhou
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University Guangdong 515063 P. R. China
| | - Guanghui Chen
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University Guangdong 515063 P. R. China
| | - Li Dang
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University Guangdong 515063 P. R. China
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29
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Zhong H, Shevlin M, Chirik PJ. Cobalt-Catalyzed Asymmetric Hydrogenation of α,β-Unsaturated Carboxylic Acids by Homolytic H2 Cleavage. J Am Chem Soc 2020; 142:5272-5281. [DOI: 10.1021/jacs.9b13876] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hongyu Zhong
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Michael Shevlin
- Department of Process Research & Development, Merck & Company, Limited, Rahway, New Jersey 07065, United States
| | - Paul J. Chirik
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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30
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Cunningham L, Benson A, Guiry PJ. Recent developments in the synthesis and applications of chiral ferrocene ligands and organocatalysts in asymmetric catalysis. Org Biomol Chem 2020; 18:9329-9370. [DOI: 10.1039/d0ob01933j] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This review highlights recent advances in the synthesis and application of ferrocene-containing chiral ligands and organocatalysts in asymmetric catalysis.
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Affiliation(s)
- Laura Cunningham
- Synthesis and Solid State Pharmaceutical Centre
- Centre for Synthesis and Chemical Biology
- School of Chemistry
- University College Dublin
- Dublin 4
| | - Annette Benson
- Centre for Synthesis and Chemical Biology
- School of Chemistry
- University College Dublin
- Dublin 4
- Ireland
| | - Patrick J. Guiry
- Synthesis and Solid State Pharmaceutical Centre
- Centre for Synthesis and Chemical Biology
- School of Chemistry
- University College Dublin
- Dublin 4
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31
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Zhou G, Aboo AH, Robertson CM, Liu R, Li Z, Luzyanin K, Berry NG, Chen W, Xiao J. N,O- vs N,C-Chelation in Half-Sandwich Iridium Complexes: A Dramatic Effect on Enantioselectivity in Asymmetric Transfer Hydrogenation of Ketones. ACS Catal 2018. [DOI: 10.1021/acscatal.8b02068] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Gang Zhou
- School of Pharmacy, Fourth Military Medical University, Xi’an, 710032, China
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom
| | - Ahmed H. Aboo
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom
| | - Craig M. Robertson
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom
| | - Ruixia Liu
- School of Pharmacy, Fourth Military Medical University, Xi’an, 710032, China
| | - Zhenhua Li
- Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Konstantin Luzyanin
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom
| | - Neil G. Berry
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom
| | - Weiping Chen
- School of Pharmacy, Fourth Military Medical University, Xi’an, 710032, China
| | - Jianliang Xiao
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom
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32
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Wang Z, Hayashi T. Rhodium-Catalyzed Enantioposition-Selective Hydroarylation of Divinylphosphine Oxides with Aryl Boroxines. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712572] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhe Wang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
| | - Tamio Hayashi
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; 21 Nanyang Link Singapore 637371 Singapore
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33
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Wang Z, Hayashi T. Rhodium-Catalyzed Enantioposition-Selective Hydroarylation of Divinylphosphine Oxides with Aryl Boroxines. Angew Chem Int Ed Engl 2018; 57:1702-1706. [PMID: 29266704 DOI: 10.1002/anie.201712572] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Indexed: 01/12/2023]
Abstract
The rhodium-catalyzed hydroarylation of divinylphosphine oxides (RP(O)(CH=CH2 )2 ) with aryl boroxines ((ArBO)3 ) gives the corresponding monoarylation products (RP(O)(CH=CHAr)CH2 CH3 ) in high yields. One of the two vinyl groups in the phosphine oxide undergoes oxidative arylation while the other one is reduced to an ethyl moiety. These reactions proceed with high selectivity in terms of the enantiotopic vinyl groups in the presence of (R)-DTBM-segphos/Rh to give the P-stereogenic monoarylation products with high enantioselectivity.
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Affiliation(s)
- Zhe Wang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Tamio Hayashi
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
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34
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Takeda N, Furuishi M, Nishijima Y, Futaki E, Ueda M, Shinada T, Miyata O. Chiral isoxazolidine-mediated stereoselective umpolung α-phenylation of methyl ketones. Org Biomol Chem 2018; 16:8940-8943. [DOI: 10.1039/c8ob02480d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Asymmetric nucleophilic phenylation of N-alkoxyenamine with triphenylaluminium is achieved for the formation of enantioenriched α-phenyl ketones through a one-pot process.
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Affiliation(s)
| | | | | | - Erika Futaki
- Kobe Pharmaceutical University
- Kobe 658-8558
- Japan
| | | | - Tetsuro Shinada
- Graduate School of Science
- Osaka City University
- Osaka 558-8585
- Japan
| | - Okiko Miyata
- Kobe Pharmaceutical University
- Kobe 658-8558
- Japan
- Graduate School of Science
- Osaka City University
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35
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Wen S, Chen C, Du S, Zhang Z, Huang Y, Han Z, Dong XQ, Zhang X. Highly Enantioselective Asymmetric Hydrogenation of Carboxy-Directed α,α-Disubstituted Terminal Olefins via the Ion Pair Noncovalent Interaction. Org Lett 2017; 19:6474-6477. [PMID: 29164897 DOI: 10.1021/acs.orglett.7b02972] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The t-Bu-Wudaphos was successfully applied into Rh-catalyzed asymmetric hydrogenation of α,α-disubstituted terminal olefins bearing a carboxy-directed group with excellent reactivities and enantioselectivities via the ion pair noncovalent interaction (up to >99% conversion, 98% yield, 98% ee) under mild reaction conditions without base. In addition, control experiments were conducted, and the results demonstrated that the ion pair noncovalent interaction between ligand and substrate played an important role in achieving an outstanding performance in this asymmetric hydrogenation.
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Affiliation(s)
- Songwei Wen
- Key Laboratory of Biomedical Polymers, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Caiyou Chen
- Key Laboratory of Biomedical Polymers, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Shuaichen Du
- Key Laboratory of Biomedical Polymers, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Zhefan Zhang
- Key Laboratory of Biomedical Polymers, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Yi Huang
- Key Laboratory of Biomedical Polymers, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Zhengyu Han
- Key Laboratory of Biomedical Polymers, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Xiu-Qin Dong
- Key Laboratory of Biomedical Polymers, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Xumu Zhang
- Key Laboratory of Biomedical Polymers, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China.,Department of Chemistry, Southern University of Science and Technology , Shenzhen, Guangdong 518000, P. R. China
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36
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Yin X, Chen C, Li X, Dong XQ, Zhang X. Rh/SPO-WudaPhos-Catalyzed Asymmetric Hydrogenation of α-Substituted Ethenylphosphonic Acids via Noncovalent Ion-Pair Interaction. Org Lett 2017; 19:4375-4378. [PMID: 28792771 DOI: 10.1021/acs.orglett.7b02098] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Asymmetric hydrogenation of α-substituted ethenylphosphonic acids has been successfully achieved by Rh/ferrocenyl chiral bisphosphorus ligand (SPO-Wudaphos) through noncovalent ion-pair interaction between the substrate and catalyst under mild reaction conditions without base. A series of chiral phosphonic acids were obtained with excellent results (up to 98% ee, >99% conversion, 2000 TON). Moreover, the control experiments showed that the noncovalent ion-pair interaction was critical in this asymmetric hydrogenation.
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Affiliation(s)
- Xuguang Yin
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Caiyou Chen
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Xiong Li
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Xumu Zhang
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China.,Department of Chemistry, South University of Science and Technology of China , Shenzhen, Guangdong 518055, P. R. China
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37
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Yin X, Chen C, Dong XQ, Zhang X. Rh/Wudaphos-Catalyzed Asymmetric Hydrogenation of Sodium α-Arylethenylsulfonates: A Method To Access Chiral α-Arylethylsulfonic Acids. Org Lett 2017; 19:2678-2681. [PMID: 28485604 DOI: 10.1021/acs.orglett.7b01021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly enantioselective hydrogenation of various sodium α-arylethenylsulfonates catalyzed by Rh/chiral ferrocenyl bisphosphorus ligand (Wudaphos) was successfully developed to construct a series of chiral α-arylethylsulfonic acids in the presence of CF3SO3H with full conversion and good to excellent enantioselectivity (>99% conversion, up to 96% ee) under mild reaction conditions for the first time. Moreover, the control experiment results showed that the non-covalent ion pair interaction between the α-arylethenylsulfonic acid and the Wudaphos ligand plays an important role in this asymmetric hydrogenation system.
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Affiliation(s)
- Xuguang Yin
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Caiyou Chen
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Xumu Zhang
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China.,Department of Chemistry, South University of Science and Technology of China , Shenzhen, Guangdong 518055, P. R. China
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38
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Enzyme-Inspired Chiral Secondary-Phosphine-Oxide Ligand with Dual Noncovalent Interactions for Asymmetric Hydrogenation. Angew Chem Int Ed Engl 2017; 56:6808-6812. [DOI: 10.1002/anie.201701394] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 03/29/2017] [Indexed: 11/07/2022]
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39
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Chen C, Zhang Z, Jin S, Fan X, Geng M, Zhou Y, Wen S, Wang X, Chung LW, Dong XQ, Zhang X. Enzyme-Inspired Chiral Secondary-Phosphine-Oxide Ligand with Dual Noncovalent Interactions for Asymmetric Hydrogenation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701394] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Caiyou Chen
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P.R. China
| | - Zhefan Zhang
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P.R. China
| | - Shicheng Jin
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P.R. China
| | - Xiangru Fan
- Department of Chemistry; South University of Science and Technology of China; Shenzhen 518000 P.R. China
| | - Mingyu Geng
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P.R. China
| | - Yan Zhou
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay, Kowloon Hong Kong SAR China
| | - Songwei Wen
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P.R. China
| | - Xinrui Wang
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P.R. China
| | - Lung Wa Chung
- Department of Chemistry; South University of Science and Technology of China; Shenzhen 518000 P.R. China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P.R. China
| | - Xumu Zhang
- College of Chemistry and Molecular Sciences; Wuhan University; 430072 Wuhan P.R. China
- Department of Chemistry; South University of Science and Technology of China; Shenzhen 518000 P.R. China
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40
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Zhu SF, Zhou QL. Iridium-Catalyzed Asymmetric Hydrogenation of Unsaturated Carboxylic Acids. Acc Chem Res 2017; 50:988-1001. [PMID: 28374998 DOI: 10.1021/acs.accounts.7b00007] [Citation(s) in RCA: 143] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Chiral carboxylic acid moieties are widely found in pharmaceuticals, agrochemicals, flavors, fragrances, and health supplements. Although they can be synthesized straightforwardly by transition-metal-catalyzed enantioselective hydrogenation of unsaturated carboxylic acids, because the existing chiral catalysts have various disadvantages, the development of new chiral catalysts with high activity and enantioselectivity is an important, long-standing challenge. Ruthenium complexes with chiral diphosphine ligands and rhodium complexes with chiral monodentate or bidentate phosphorus ligands have been the predominant catalysts for asymmetric hydrogenation of unsaturated acids. However, the efficiency of these catalysts is highly substrate-dependent, and most of the reported catalysts require a high loading, high hydrogen pressure, or long reaction time for satisfactory results. Our recent studies have revealed that chiral iridium complexes with chiral spiro-phosphine-oxazoline ligands and chiral spiro-phosphine-benzylamine ligands exhibit excellent activity and enantioselectivity in the hydrogenation of α,β-unsaturated carboxylic acids, including α,β-disubstituted acrylic acids, trisubstituted acrylic acids, α-substituted acrylic acids, and heterocyclic α,β-unsaturated acids. On the basis of an understanding of the role of the carboxy group in iridium-catalyzed asymmetric hydrogenation reactions, we developed a carboxy-group-directed strategy for asymmetric hydrogenation of olefins. Using this strategy, we hydrogenated several challenging olefin substrates, such as β,γ-unsaturated carboxylic acids, 1,1-diarylethenes, 1,1-dialkylethenes, and 1-alkyl styrenes in high yield and with excellent enantioselectivity. All these iridium-catalyzed asymmetric hydrogenation reactions feature high turnover numbers (up to 10000) and turnover frequencies (up to 6000 h-1), excellent enantioselectivities (greater than 95% ee with few exceptions), low hydrogen pressure (<12 atm), and operational simplicity. These features make chiral iridium catalysts superior or comparable to well-established chiral ruthenium and rhodium catalysts for asymmetric hydrogenation of unsaturated carboxylic acids. A number of chiral natural products and pharmaceuticals have been prepared by concise routes involving an iridium-catalyzed asymmetric hydrogenation of an unsaturated carboxylic acid as a key step. As part of a mechanistic study of iridium-catalyzed asymmetric hydrogenation of unsaturated acids, we isolated, for the first time, the migratory insertion intermediate in the iridium-catalyzed asymmetric hydrogenation of olefins, and this result strongly supports the involvement of an Ir(III)/Ir(V) catalytic cycle. The rigid, bulky scaffold of the chiral spiro-P,N-ligands of the catalysts not only prevents them from undergoing deactivating aggregation under the hydrogenation conditions but also is responsible for the efficient chiral induction. The carboxy group of the substrate acts as an anchor to ensure coordination of the substrate to the iridium center of the catalyst during the reaction and makes the hydrogenation proceed smoothly.
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Affiliation(s)
- Shou-Fei Zhu
- State
Key Laboratory and Institute of Elemento-Organic Chemistry and ‡Collaborative
Innovation Center of Chemical Science and Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Qi-Lin Zhou
- State
Key Laboratory and Institute of Elemento-Organic Chemistry and ‡Collaborative
Innovation Center of Chemical Science and Engineering, College of Chemistry, Nankai University, Tianjin 300071, China
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41
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Chen C, Wen S, Geng M, Jin S, Zhang Z, Dong XQ, Zhang X. A new ferrocenyl bisphosphorus ligand for the asymmetric hydrogenation of α-methylene-γ-keto-carboxylic acids. Chem Commun (Camb) 2017; 53:9785-9788. [DOI: 10.1039/c7cc04401a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new chiral ferrocenyl bisphosphorus ligand t-Bu-Wudaphos exhibited excellent performance in the asymmetric hydrogenation of α-methylene-γ-keto-carboxylic acids (up to >99% conversion, >99% ee).
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Affiliation(s)
- Caiyou Chen
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Songwei Wen
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Mingyu Geng
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Shicheng Jin
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Zhefan Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
| | - Xumu Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P. R. China
- Department of Chemistry
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42
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Chen C, Wen S, Dong XQ, Zhang X. Highly stereoselective synthesis and application of P-chiral ferrocenyl bisphosphorus ligands for asymmetric hydrogenation. Org Chem Front 2017. [DOI: 10.1039/c7qo00448f] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
New, efficient and highly stereoselective methods were developed for the synthesis/systematic modification of Wudaphos type ligands.
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Affiliation(s)
- Caiyou Chen
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
| | - Songwei Wen
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
| | - Xiu-Qin Dong
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
| | - Xumu Zhang
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan
- P.R. China
- Department of Chemistry
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