1
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Binayeva M, Ma X, Ghaemimohammadi P, Biscoe MR. A general approach to stereospecific Pd-catalyzed cross-coupling reactions of benzylic stereocenters. Chem Sci 2023; 14:14124-14130. [PMID: 38098708 PMCID: PMC10717501 DOI: 10.1039/d3sc04519f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 11/15/2023] [Indexed: 12/17/2023] Open
Abstract
We have developed a general process for the formation of enantioenriched benzylic stereocenters via stereospecific Pd-catalyzed cross-coupling reactions of enantioenriched benzylic tricyclohexyltin nucleophiles. This process proceeds with excellent stereospecificity for a remarkably broad scope of electrophilic coupling partners including aryl and heteroaryl halides and triflates, acid chlorides, thioesters, chloroformates, and carbamoyl chlorides. Thus, enantioenriched 1,1-diarylalkanes as well as formal products of asymmetric enolate arylation are readily accessed using this approach. We additionally provide the first demonstration of a Sn-selective cross-coupling reaction using a vicinal alkylborylstannane nucleophile. In these reactions, the presence of cyclohexyl spectator ligands on tin is essential to ensure selective transfer of the secondary benzylic unit from tin to palladium.
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Affiliation(s)
- Meruyert Binayeva
- Department of Chemistry and Biochemistry, The City College of New York (CCNY) New York NY 10031 USA
- The Graduate Center of the City University of New York (CUNY) 365 Fifth Avenue New York NY 10016 USA
| | - Xinghua Ma
- Department of Chemistry and Biochemistry, The City College of New York (CCNY) New York NY 10031 USA
- The Graduate Center of the City University of New York (CUNY) 365 Fifth Avenue New York NY 10016 USA
| | - Pejman Ghaemimohammadi
- Department of Chemistry and Biochemistry, The City College of New York (CCNY) New York NY 10031 USA
- The Graduate Center of the City University of New York (CUNY) 365 Fifth Avenue New York NY 10016 USA
| | - Mark R Biscoe
- Department of Chemistry and Biochemistry, The City College of New York (CCNY) New York NY 10031 USA
- The Graduate Center of the City University of New York (CUNY) 365 Fifth Avenue New York NY 10016 USA
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2
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Sar D, Yin S, Grygus J, Rentería-Gómez Á, Garcia M, Gutierrez O. Expanding the chemical space of enol silyl ethers: catalytic dicarbofunctionalization enabled by iron catalysis. Chem Sci 2023; 14:13007-13013. [PMID: 38023494 PMCID: PMC10664506 DOI: 10.1039/d3sc04549h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
Enol silyl ethers are versatile, robust, and readily accessible substrates widely used in chemical synthesis. However, the conventional reactivity of these motifs has been limited to classical two electron (2-e) enolate-type chemistry with electrophilic partners or as radical acceptors in one electron (1-e) reactivity leading, in both cases, to exclusive α-monofunctionalization of carbonyls. Herein we describe a mild, fast, and operationally simple one-step protocol that combines readily available fluoroalkyl halides, silyl enol ethers, and, for the first time, hetero(aryl) Grignard reagents to promote selective dicarbofunctionalization of enol silyl ethers. From a broader perspective, this work expands the synthetic utility of enol silyl ethers and establishes bisphosphine-iron catalysis as enabling technology capable of orchestrating selective C-C bond formations with short-lived α-silyloxy radicals with practical implications towards sustainable chemical synthesis.
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Affiliation(s)
- Dinabandhu Sar
- Department of Chemistry, Texas A&M University College Station Texas 77843 USA
| | - Shuai Yin
- Department of Chemistry, Texas A&M University College Station Texas 77843 USA
| | - Jacob Grygus
- Department of Chemistry, Texas A&M University College Station Texas 77843 USA
| | | | - Melanie Garcia
- Department of Chemistry, Texas A&M University College Station Texas 77843 USA
| | - Osvaldo Gutierrez
- Department of Chemistry, Texas A&M University College Station Texas 77843 USA
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3
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Ma C, Sun Y, Yang J, Guo H, Zhang J. Catalytic Asymmetric Synthesis of Tröger's Base Analogues with Nitrogen Stereocenter. ACS CENTRAL SCIENCE 2023; 9:64-71. [PMID: 36712492 PMCID: PMC9881208 DOI: 10.1021/acscentsci.2c01121] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Indexed: 06/18/2023]
Abstract
Nitrogen stereocenters are common chiral units in natural products, pharmaceuticals, and chiral catalysts. However, their research has lagged largely behind, compared with carbon stereocenters and other heteroatom stereocenters. Herein, we report an efficient method for the catalytic asymmetric synthesis of Tröger's base analogues with nitrogen stereocenters via palladium catalysis and home-developed GF-Phos. It allows rapid construction of a new rigid cleft-like structure with both a C- and a N-stereogenic center in high efficiency and selectivity. A variety of applications as a chiral organocatalyst and metallic catalyst precursors were demonstrated. Furthermore, DFT calculations suggest that the NH···O hydrogen bonding and weak interaction between the substrate and ligand are crucial for the excellent enantioselectivity control.
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Affiliation(s)
- Chun Ma
- Department
of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Yue Sun
- Department
of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| | - Junfeng Yang
- Department
of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
- Fudan
Zhangjiang Institute, Shanghai 201203, P. R. China
| | - Hao Guo
- Department
of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
- Zhuhai
Fudan Innovation Institute, Zhuhai, 519000, P. R. China
| | - Junliang Zhang
- Department
of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
- School
of Chemistry and Chemical Engineering, Henan
Normal University, Xinxiang, Henan 453007, P. R. China
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4
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Li S, Chen Q, Yang J, Zhang J. Palladium‐Catalyzed Enantioselective γ‐Arylation of β,γ‐Unsaturated Butenolides. Angew Chem Int Ed Engl 2022; 61:e202202046. [DOI: 10.1002/anie.202202046] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Indexed: 12/19/2022]
Affiliation(s)
- Sanliang Li
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Qiaoyu Chen
- Academy for Engineering and Technology Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Junfeng Yang
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Junliang Zhang
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 China
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5
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Li S, Chen Q, Yang J, Zhang J. Palladium‐Catalyzed Enantioselective γ‐Arylation of β,γ‐Unsaturated Butenolides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sanliang Li
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Qiaoyu Chen
- Academy for Engineering and Technology Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Junfeng Yang
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
| | - Junliang Zhang
- Department of Chemistry Fudan University 2005 Songhu Road Shanghai 200438 China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 China
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6
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Orlandi M, Escudero-Casao M, Licini G. Transition-Metal-Catalyzed Enantioselective α-Arylation of Carbonyl Compounds to Give Tertiary Stereocenters. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1560-5245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractEnantioenriched α-aryl carbonyl compounds are ubiquitous in natural products and biologically active compounds. Their synthesis has been explored over the last few decades and several methods now exist that allow for the enantioselective formation of a C(sp3)-C(sp2) bond in the α-position to a carbonyl group. However, although the formation of quaternary stereocenters has been fairly well established, the enantioselective formation of tertiary stereocenters proved more challenging due to facile product post-reaction racemization. In this short review, we summarize the methods reported to date for the asymmetric α-arylation of enolates and analogues that rely on transition-metal catalysis.1 Introduction2 Nucleophile Pre-activation3 Activation via Aminocatalysis4 Formation of Constrained Stereocenters5 Concluding Remarks
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7
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Orlandi M, Escudero-Casao M, Licini G. Cu(I)–Bis(phosphine) Dioxides as Catalysts for the Enantioselective α-Arylation of Carbonyl Compounds. Synlett 2021. [DOI: 10.1055/a-1503-7339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractThe transition-metal-catalyzed α-arylation of carbonyl compounds was first reported by Buchwald and Hartwig in 1997. This transformation has been used and studied extensively over the last two decades. Enantioselective variants were also developed that allow for controlling the product stereochemistry. However, these suffer several limitations in the context of formation of tertiary stereocenters. Presented here is our group’s contribution to this research area. The chiral Cu-bis(phosphine) dioxides catalytic system that we reported allowed accessing the enantioselective α-arylation of ketones that were not suitable for this transformation before in good yields and er up to 97.5:2.5. Preliminary insight and speculation concerning the reaction mechanism involving the unusual pairing of bis(phosphine) dioxides with transition-metal catalysts is also given.1 Introduction2 State of the Art3 Enantioselective α-Arylation of Acyclic Ketones4 Summary and Conclusions
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8
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Li B, Luo B, Blakemore CA, Smith AC, Widlicka DW, Berritt S, Tang W. Synthesis of α-Heteroaryl Propionic Esters by Palladium-Catalyzed α-Heteroarylation of Silyl Ketene Acetals. Org Lett 2021; 23:6439-6443. [PMID: 34369790 DOI: 10.1021/acs.orglett.1c02257] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A practical and efficient synthesis of α-heteroaryl propionic esters is developed by employing palladium-catalyzed α-heteroarylation of silyl ketene acetals, forming a wide variety of α-heteroaryl propionic esters with various substituents and functionalities in high yields. The success of this transformation is credited to the development of the bulky P,P═O ligand. The method has provided an efficient synthesis of α-heteroaryl propionic acids.
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Affiliation(s)
- Bowen Li
- School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China.,State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Bangke Luo
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Caroline A Blakemore
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Aaron C Smith
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Daniel W Widlicka
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Simon Berritt
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Wenjun Tang
- School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China.,State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
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9
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Kalkman ED, Hartwig JF. Direct Observation of Diastereomeric α-C-Bound Enolates during Enantioselective α-Arylations: Synthesis, Characterization, and Reactivity of Arylpalladium Fluorooxindole Complexes. J Am Chem Soc 2021; 143:11741-11750. [PMID: 34308646 DOI: 10.1021/jacs.1c05346] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Pd-catalyzed asymmetric α-arylation of carbonyl compounds is a valuable strategy to form benzylic stereocenters. However, the origin of the stereoselectivity of these reactions is poorly understood, and little is known about the reactivity of the putative diastereomeric arylpalladium enolate intermediates. To this end, we report the synthesis and characterization of a series of diphosphine-ligated arylpalladium fluoroenolate complexes, including complexes bearing a metal-bound, stereogenic carbon and an enantioenriched chiral diphosphine ligand. These complexes reductively eliminate to form chiral α-aryl-α-fluorooxindoles with enantioselectivities and rates that are relevant to those of the catalytic process with SEGPHOS as the ancillary ligand. Kinetic studies showed that the rate of reductive elimination is slightly slower than the rate of epimerization of the intermediate, causing the reductive elimination step to impart the greatest influence on the enantioselectivity. DFT calculations of these processes are consistent with these experimental rates and suggest that the minor diastereomer forms the major enantiomer of the product. The rates of reductive elimination from complexes containing a variety of electronically varied aryl ligands revealed the unusual trend that complexes bearing more electron-rich aryl ligands react faster than those bearing more electron-poor aryl ligands. Noncovalent Interaction (NCI) and Natural Bond Orbital (NBO) analyses of the transition-state structures for reductive elimination from the SEGPHOS-ligated complexes revealed key donor-acceptor interactions between the Pd center and the fluoroenolate fragment. These interactions stabilize the pathway to the major product enantiomer more strongly than they stabilize that to the minor enantiomer.
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Affiliation(s)
- Eric D Kalkman
- Department of Chemistry, University of California, Berkeley, California 94702, United States
| | - John F Hartwig
- Department of Chemistry, University of California, Berkeley, California 94702, United States
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10
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Wang M, Wang W, Li D, Wang WJ, Zhan R, Shao LD. α-C(sp 3)-H Arylation of Cyclic Carbonyl Compounds. NATURAL PRODUCTS AND BIOPROSPECTING 2021; 11:379-404. [PMID: 34097248 PMCID: PMC8275813 DOI: 10.1007/s13659-021-00312-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 05/24/2021] [Indexed: 05/05/2023]
Abstract
α-C(sp3)-H arylation is an important type of C-H functionalization. Various biologically significant natural products, chemical intermediates, and drugs have been effectively prepared via C-H functionalization. Cyclic carbonyl compounds comprise of cyclic ketones, enones, lactones, and lactams. The α-C(sp3)-H arylation of these compounds have been exhibited high efficiency in forming C(sp3)-C(sp2) bonds, played a crucial role in organic synthesis, and attracted majority of interests from organic and medicinal communities. This review focused on the most significant advances including methods, mechanism, and applications in total synthesis of natural products in the field of α-C(sp3)-H arylations of cyclic carbonyl compounds in recent years.
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Affiliation(s)
- Mei Wang
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650050, China
| | - Wei Wang
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650050, China
| | - Dashan Li
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650050, China
| | - Wen-Jing Wang
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650050, China
| | - Rui Zhan
- School of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming, 650050, China.
| | - Li-Dong Shao
- Yunnan Key Laboratory of Southern Medicinal Utilization, School of Chinese Materia Medica, Yunnan University of Chinese Medicine, Kunming, 650050, China.
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11
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η
6
‐Arene CH−O Interaction Directed Dynamic Kinetic Resolution – Asymmetric Transfer Hydrogenation (DKR‐ATH) of α‐Keto/enol‐Lactams. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100288] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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12
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Wu T, Zhou Q, Tang W. Enantioselective α-Carbonylative Arylation for Facile Construction of Chiral Spirocyclic β,β'-Diketones. Angew Chem Int Ed Engl 2021; 60:9978-9983. [PMID: 33599064 DOI: 10.1002/anie.202101668] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Indexed: 01/03/2023]
Abstract
We herein describe the first enantioselective α-carbonylative arylation, providing a diverse set of chiral spiro β,β'-diketones bearing various ring sizes and functionalities in high yields and good to excellent enantioselectivities. Calculations suggest the transformation proceeds through reductive elimination instead of nucleophilic addition pathway.
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Affiliation(s)
- Ting Wu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Rd, Shanghai, 200032, China
| | - Qinghai Zhou
- College of Chemistry and Materials Science, Shanghai Normal University, 106 Guilin Road, Shanghai, 200233, China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Rd, 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, 310024, China
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13
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Wu T, Zhou Q, Tang W. Enantioselective α‐Carbonylative Arylation for Facile Construction of Chiral Spirocyclic β,β′‐Diketones. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Ting Wu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences 345 Ling Ling Rd Shanghai 200032 China
| | - Qinghai Zhou
- College of Chemistry and Materials Science Shanghai Normal University 106 Guilin Road Shanghai 200233 China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences 345 Ling Ling Rd 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 310024 China
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14
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Melot R, Zuccarello M, Cavalli D, Niggli N, Devereux M, Bürgi T, Baudoin O. Palladium(0)‐Catalyzed Enantioselective Intramolecular Arylation of Enantiotopic Secondary C−H Bonds. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014605] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Romain Melot
- University of Basel Department of Chemistry St. Johanns-Ring 19 4056 Basel Switzerland
| | - Marco Zuccarello
- University of Basel Department of Chemistry St. Johanns-Ring 19 4056 Basel Switzerland
| | - Diana Cavalli
- University of Basel Department of Chemistry St. Johanns-Ring 19 4056 Basel Switzerland
| | - Nadja Niggli
- University of Basel Department of Chemistry St. Johanns-Ring 19 4056 Basel Switzerland
| | - Michael Devereux
- University of Basel Department of Chemistry St. Johanns-Ring 19 4056 Basel Switzerland
| | - Thomas Bürgi
- University of Geneva Department of Physical Chemistry 30 Quai Ernest-Ansermet 1211 Geneva 4 Switzerland
| | - Olivier Baudoin
- University of Basel Department of Chemistry St. Johanns-Ring 19 4056 Basel Switzerland
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15
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Melot R, Zuccarello M, Cavalli D, Niggli N, Devereux M, Bürgi T, Baudoin O. Palladium(0)-Catalyzed Enantioselective Intramolecular Arylation of Enantiotopic Secondary C-H Bonds. Angew Chem Int Ed Engl 2021; 60:7245-7250. [PMID: 33325596 DOI: 10.1002/anie.202014605] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/14/2020] [Indexed: 11/10/2022]
Abstract
The enantioselective functionalization of nonactivated enantiotopic secondary C-H bonds is one of the greatest challenges in transition-metal-catalyzed C-H activation proceeding by an inner-sphere mechanism. Such reactions have remained elusive within the realm of Pd0 catalysis. Reported here is the unique reactivity profile of the IBiox ligand family in the Pd0 -catalyzed intramolecular arylation of such nonactivated secondary C-H bonds. Chiral C2 -symmetric IBiox ligands led to high enantioselectivities for a broad range of valuable indane products containing a tertiary stereocenter, as well as the arylation of secondary C-H bonds adjacent to amides. Depending on the amide substituents and upon control of reaction time, indanes containing labile tertiary stereocenters were also obtained with high enantioselectivities. Analysis of the steric maps of the IBiox ligands indicated that the level of enantioselectivity correlates with the difference between the two most occupied and the two less occupied space quadrants, and provided a blueprint for the design of even more efficient ligands.
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Affiliation(s)
- Romain Melot
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Marco Zuccarello
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Diana Cavalli
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Nadja Niggli
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Michael Devereux
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Thomas Bürgi
- University of Geneva, Department of Physical Chemistry, 30 Quai Ernest-Ansermet, 1211, Geneva 4, Switzerland
| | - Olivier Baudoin
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, 4056, Basel, Switzerland
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16
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Escudero-Casao M, Licini G, Orlandi M. Enantioselective α-Arylation of Ketones via a Novel Cu(I)-Bis(phosphine) Dioxide Catalytic System. J Am Chem Soc 2021; 143:3289-3294. [PMID: 33635068 PMCID: PMC8041290 DOI: 10.1021/jacs.0c13236] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Indexed: 12/15/2022]
Abstract
A novel catalytic system based on copper(I) and chiral bis(phosphine) dioxides is described. This allows the arylation of silyl enol ethers to access enolizable α-arylated ketones in good yields and enantiomeric excess up to 95%. Noncyclic ketones are amenable substrates with this method, which complements other approaches based on palladium catalysis. Optimization of the ligand structure is accomplished via rational design driven by correlation analysis. Preliminary mechanistic hypotheses are also evaluated in order to identify the role of chiral bis(phosphine) dioxides.
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Affiliation(s)
| | - Giulia Licini
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
- CIRCC−Consorzio Interuniversitario
per le Reattività Chimiche e la Catalisi, University of Padova, via Marzolo 1, 35131 Padova, Italy
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17
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Pachisia S, Kishan R, Yadav S, Gupta R. Half-Sandwich Ruthenium Complexes of Amide-Phosphine Based Ligands: H-Bonding Cavity Assisted Binding and Reduction of Nitro-substrates. Inorg Chem 2021; 60:2009-2022. [PMID: 33459009 DOI: 10.1021/acs.inorgchem.0c03505] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present synthesis and characterization of two half-sandwich Ru(II) complexes supported with amide-phosphine based ligands. These complexes presented a pyridine-2,6-dicarboxamide based pincer cavity, decorated with hydrogen bonds, that participated in the binding of nitro-substrates closer to the Ru(II) centers, which is further supported with binding and docking studies. These ruthenium complexes functioned as the noteworthy catalysts for the borohydride mediated reduction of assorted nitro-substrates. Mechanistic studies not only confirmed the intermediacy of [Ru-H] in the reduction but also asserted the involvement of several organic intermediates during the course of the catalysis. A similar Ru(II) complex that lacked pyridine-2,6-dicarboxamide based pincer cavity substantiated its unique role both in the substrate binding and the subsequent catalysis.
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Affiliation(s)
- Sanya Pachisia
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Ram Kishan
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Samanta Yadav
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Rajeev Gupta
- Department of Chemistry, University of Delhi, Delhi 110007, India
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18
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Aspergilfuranones A-D, four norlignanolides from the Peucedanum praeruptorum endophytic fungus Aspergillus udagawae. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.131951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Guo L, Yuan M, Zhang Y, Wang F, Zhu S, Gutierrez O, Chu L. General Method for Enantioselective Three-Component Carboarylation of Alkenes Enabled by Visible-Light Dual Photoredox/Nickel Catalysis. J Am Chem Soc 2020; 142:10.1021/jacs.0c08823. [PMID: 33211954 PMCID: PMC8131407 DOI: 10.1021/jacs.0c08823] [Citation(s) in RCA: 107] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A visible-light-promoted photoredox/nickel protocol for the enantioselective three-component carboarylation of alkenes with tertiary and secondary alkyltrifluoroborates and aryl bromides is described. This redox-neutral protocol allows for facile and divergent access to a wide array of enantioenriched β-alkyl-α-arylated carbonyls, phosphonates, and sulfones in high yields and excellent enantioselectivities from readily available starting materials. We also report a modular and enantioselective synthesis of flurbiprofen analogs and piragliatin lead compound to demonstrate synthetic utility. Experimental and computational mechanistic studies were performed to gain insights into the mechanism and origin of chemo- and enantioselectivity.
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Affiliation(s)
- Lei Guo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai 201620, China
| | - Mingbin Yuan
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Yanyan Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai 201620, China
| | - Fang Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai 201620, China
| | - Shengqing Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai 201620, China
| | - Osvaldo Gutierrez
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Lingling Chu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Center for Advanced Low-Dimension Materials, Donghua University, Shanghai 201620, China
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20
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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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21
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Orlandi M, Licini G. Computational Analysis of Enantioselective Pd-Catalyzed α-Arylation of Ketones. J Org Chem 2020; 85:11511-11518. [PMID: 32786644 PMCID: PMC8009508 DOI: 10.1021/acs.joc.0c01768] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The direct α-arylation of carbonyl compounds emerged over the last two decades as a straightforward method for the formation of C(sp3)-C(sp2) bonds. Mechanistic studies suggested a classical cross-coupling catalytic cycle. This consists of oxidative addition of the aryl halide (ArX) to the Pd(0)-catalyst, transmetallation of the Na- or K-enolate generated in situ, and subsequent reductive elimination. Even though the general reaction mechanism was thoroughly investigated, studies focusing on enantioselective variants of this transformation are rare. Here, the computational study of the [Pd(BINAP)]-catalyzed α-arylation of 2-methyltetralone with bromobenzene is reported. The whole reaction energy profile was computed and several mechanistic scenarios were investigated for the key steps of the reaction, which are the enolate transmetallation and the C-C bond-forming reductive elimination. Among the computed mechanisms, the reductive elimination from the C-bound enolate Pd complex was found to be the most favorable one, providing a good match with the stereoselectivity observed experimentally with different ligands and substrates. Detailed analysis of the stereodetermining transition structures allowed us to establish the origin of the reaction enantioselectivity.
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Affiliation(s)
- Manuel Orlandi
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Giulia Licini
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy.,CIRCC-Consorzio Interuniversitario per le Reattività Chimiche e la Catalisi, Padova Unit., via Marzolo 1, 35131 Padova, Italy
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22
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Eliseenko SS, Bhadbhade M, Liu F. Multifunctional chiral aminophosphines for enantiodivergent catalysis in a palladium-catalyzed allylic alkylation reaction. Chirality 2020; 32:1311-1323. [PMID: 32757326 DOI: 10.1002/chir.23275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/11/2020] [Accepted: 07/21/2020] [Indexed: 12/20/2022]
Abstract
Trifunctional MAP-based chiral phosphines were tested as new ligands in a Pd-catalyzed asymmetric allylic alkylation, demonstrating fast and enantiodivergent catalysis. The palladium complexes of representative ligands by X-ray analysis revealed a novel mode of P,N-coordination of the ligand to the palladium center, which may contribute to switching the sense of the asymmetric induction via combined steric and tunable H-bonding interactions between the metal complex and the substrates.
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Affiliation(s)
- Sviatoslav S Eliseenko
- Department of Molecular Sciences, Macquarie University, Sydney, New South Wales, Australia
| | - Mohan Bhadbhade
- Solid State & Elemental Analysis Unit, Mark Wainwright Analytical Centre, Division of Research, The University of New South Wales, Sydney, New South Wales, Australia
| | - Fei Liu
- Department of Molecular Sciences, Macquarie University, Sydney, New South Wales, Australia
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23
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Wu T, Kang X, Bai H, Xiong W, Xu G, Tang W. Enantioselective Construction of Spiro Quaternary Carbon Stereocenters via Pd-Catalyzed Intramolecular α-Arylation. Org Lett 2020; 22:4602-4607. [DOI: 10.1021/acs.orglett.0c01129] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ting Wu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Xuehua Kang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Heng Bai
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Wenrui Xiong
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Guangqing Xu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China
- School of Chemistry and Material Sciences, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, 1 Sub-lane Xiangshan, Hangzhou 310024, China
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24
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Tian J, Luo F, Zhang Q, Liang Y, Li D, Zhan Y, Kong L, Wang ZX, Peng B. Asymmetric Iodonio-[3,3]-Sigmatropic Rearrangement to Access Chiral α-Aryl Carbonyl Compounds. J Am Chem Soc 2020; 142:6884-6890. [DOI: 10.1021/jacs.0c00783] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Junsong Tian
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, China
| | - Fan Luo
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, China
| | - Qifeng Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, China
| | - Yuchen Liang
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Dongyang Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, China
| | - Yaling Zhan
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, China
| | - Lichun Kong
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, China
| | - Zhi-Xiang Wang
- School of Chemical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
| | - Bo Peng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Zhejiang Normal University, Jinhua 321004, China
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25
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Jette CI, Tong ZJ, Hadt RG, Stoltz BM. Copper-Catalyzed Enantioselective Allylic Alkylation with a γ-Butyrolactone-Derived Silyl Ketene Acetal. Angew Chem Int Ed Engl 2020; 59:2033-2038. [PMID: 31742854 PMCID: PMC7051182 DOI: 10.1002/anie.201912618] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 11/12/2019] [Indexed: 12/16/2022]
Abstract
Herein, we report a Cu-catalyzed enantioselective allylic alkylation using a γ-butyrolactone-derived silyl ketene acetal. Critical to the development of this work was the identification of a novel mono-picolinamide ligand with the appropriate steric and electronic properties to afford the desired products in high yield (up to 96 %) and high ee (up to 95 %). Aryl, aliphatic, and unsubstituted allylic chlorides bearing a broad range of functionality are well-tolerated. Spectroscopic studies reveal that a CuI species is likely the active catalyst, and DFT calculations suggest ligand sterics play an important role in determining Cu coordination and thus catalyst geometry.
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Affiliation(s)
- Carina I Jette
- Warren And Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Z Jaron Tong
- Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Ryan G Hadt
- Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, CA, 91125, USA
| | - Brian M Stoltz
- Warren And Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, 91125, USA
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26
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Jette CI, Tong ZJ, Hadt RG, Stoltz BM. Copper‐Catalyzed Enantioselective Allylic Alkylation with a γ‐Butyrolactone‐Derived Silyl Ketene Acetal. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201912618] [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)
- Carina I. Jette
- Warren And Katharine Schlinger Laboratory for Chemistry and Chemical EngineeringCalifornia Institute of Technology Pasadena CA 91125 USA
| | - Z. Jaron Tong
- Arthur Amos Noyes Laboratory of Chemical PhysicsCalifornia Institute of Technology Pasadena CA 91125 USA
| | - Ryan G. Hadt
- Arthur Amos Noyes Laboratory of Chemical PhysicsCalifornia Institute of Technology Pasadena CA 91125 USA
| | - Brian M. Stoltz
- Warren And Katharine Schlinger Laboratory for Chemistry and Chemical EngineeringCalifornia Institute of Technology Pasadena CA 91125 USA
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27
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Hao YJ, Hu XS, Zhou Y, Zhou J, Yu JS. Catalytic Enantioselective α-Arylation of Carbonyl Enolates and Related Compounds. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04480] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yong-Jia Hao
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, People’s Republic of China
| | - Xiao-Si Hu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
| | - Ying Zhou
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, People’s Republic of China
| | - Jian Zhou
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, People’s Republic of China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
| | - Jin-Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development and Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, People’s Republic of China
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28
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Chen J, Guo P, Zhang J, Rong J, Sun W, Jiang Y, Loh T. Synthesis of Functionalized α‐Vinyl Aldehydes from Enaminones. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Jie Chen
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Pan Guo
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Jianguo Zhang
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Jiaxin Rong
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Wangbin Sun
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Yaojia Jiang
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Teck‐Peng Loh
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637616 Singapore
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29
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Chen J, Guo P, Zhang J, Rong J, Sun W, Jiang Y, Loh T. Synthesis of Functionalized α‐Vinyl Aldehydes from Enaminones. Angew Chem Int Ed Engl 2019; 58:12674-12679. [DOI: 10.1002/anie.201906213] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Jie Chen
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Pan Guo
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Jianguo Zhang
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Jiaxin Rong
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Wangbin Sun
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Yaojia Jiang
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
| | - Teck‐Peng Loh
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University Nanjing 211816 China
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637616 Singapore
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30
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James J, Akula R, Guiry PJ. Pd-Catalyzed Decarboxylative Asymmetric Protonation (DAP) Using Chiral PHOX Ligands vs. Chiral Ligand-Free Conditions Employing (1R
,2S
)(-)-Ephedrine - A Comparison Study. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jinju James
- Centre for Synthesis and Chemical Biology; School of Chemistry; University College Dublin; Belfield 4 Dublin Ireland
| | - Ramulu Akula
- Synthesis & Solid State Pharmaceutical Centre (SSPC); School of Chemistry; University College Dublin; Belfield 4 Dublin Ireland
| | - Patrick J. Guiry
- Centre for Synthesis and Chemical Biology; School of Chemistry; University College Dublin; Belfield 4 Dublin Ireland
- Synthesis & Solid State Pharmaceutical Centre (SSPC); School of Chemistry; University College Dublin; Belfield 4 Dublin Ireland
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31
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Vargová D, Némethová I, Plevová K, Šebesta R. Asymmetric Transition-Metal Catalysis in the Formation and Functionalization of Metal Enolates. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04357] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Denisa Vargová
- Comenius University in Bratislava, Faculty of Natural Sciences, Department of Organic Chemistry, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovak Republic
| | - Ivana Némethová
- Comenius University in Bratislava, Faculty of Natural Sciences, Department of Organic Chemistry, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovak Republic
| | - Kristína Plevová
- Comenius University in Bratislava, Faculty of Natural Sciences, Department of Organic Chemistry, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovak Republic
| | - Radovan Šebesta
- Comenius University in Bratislava, Faculty of Natural Sciences, Department of Organic Chemistry, Mlynská dolina, Ilkovičova 6, 842 15 Bratislava, Slovak Republic
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32
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Jang YJ, Rose D, Mirabi B, Lautens M. Rhodium‐Catalyzed Enantioselective Defluorinative α‐Arylation of Secondary Amides. Angew Chem Int Ed Engl 2018; 57:16147-16151. [DOI: 10.1002/anie.201808509] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/25/2018] [Indexed: 01/28/2023]
Affiliation(s)
- Young Jin Jang
- Davenport Research LaboratoriesDepartment of ChemistryUniversity of Toronto Toronto Ontario M5S 3H6 Canada
| | - Daniel Rose
- Davenport Research LaboratoriesDepartment of ChemistryUniversity of Toronto Toronto Ontario M5S 3H6 Canada
| | - Bijan Mirabi
- Davenport Research LaboratoriesDepartment of ChemistryUniversity of Toronto Toronto Ontario M5S 3H6 Canada
| | - Mark Lautens
- Davenport Research LaboratoriesDepartment of ChemistryUniversity of Toronto Toronto Ontario M5S 3H6 Canada
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33
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Mote NR, Chikkali SH. Hydrogen-Bonding-Assisted Supramolecular Metal Catalysis. Chem Asian J 2018; 13:3623-3646. [DOI: 10.1002/asia.201801302] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/09/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Nilesh R. Mote
- Polymer Science and Engineering Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); Anusandhan Bhawan, 2 Rafi Marg New Delhi- 110001 India
| | - Samir H. Chikkali
- Polymer Science and Engineering Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); Anusandhan Bhawan, 2 Rafi Marg New Delhi- 110001 India
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34
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Jang YJ, Rose D, Mirabi B, Lautens M. Rhodium‐Catalyzed Enantioselective Defluorinative α‐Arylation of Secondary Amides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808509] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Young Jin Jang
- Davenport Research LaboratoriesDepartment of ChemistryUniversity of Toronto Toronto Ontario M5S 3H6 Canada
| | - Daniel Rose
- Davenport Research LaboratoriesDepartment of ChemistryUniversity of Toronto Toronto Ontario M5S 3H6 Canada
| | - Bijan Mirabi
- Davenport Research LaboratoriesDepartment of ChemistryUniversity of Toronto Toronto Ontario M5S 3H6 Canada
| | - Mark Lautens
- Davenport Research LaboratoriesDepartment of ChemistryUniversity of Toronto Toronto Ontario M5S 3H6 Canada
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35
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Rao X, Li N, Bai H, Dai C, Wang Z, Tang W. Efficient Synthesis of (−)-Corynoline by Enantioselective Palladium-Catalyzed α-Arylation with Sterically Hindered Substrates. Angew Chem Int Ed Engl 2018; 57:12328-12332. [DOI: 10.1002/anie.201807302] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/30/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Xiaofeng Rao
- State Key Laboratory of Bio-Organic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; 345 Ling Ling Rd Shanghai 200032 China
| | - Naikai Li
- State Key Laboratory of Bio-Organic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; 345 Ling Ling Rd Shanghai 200032 China
| | - Heng Bai
- State Key Laboratory of Bio-Organic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; 345 Ling Ling Rd Shanghai 200032 China
| | - Chaodi Dai
- State Key Laboratory of Bio-Organic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; 345 Ling Ling Rd Shanghai 200032 China
| | - Zheng Wang
- Informatics and Technology; Astra Zeneca China; Shanghai China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; 345 Ling Ling Rd Shanghai 200032 China
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36
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Rao X, Li N, Bai H, Dai C, Wang Z, Tang W. Efficient Synthesis of (−)-Corynoline by Enantioselective Palladium-Catalyzed α-Arylation with Sterically Hindered Substrates. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807302] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiaofeng Rao
- State Key Laboratory of Bio-Organic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; 345 Ling Ling Rd Shanghai 200032 China
| | - Naikai Li
- State Key Laboratory of Bio-Organic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; 345 Ling Ling Rd Shanghai 200032 China
| | - Heng Bai
- State Key Laboratory of Bio-Organic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; 345 Ling Ling Rd Shanghai 200032 China
| | - Chaodi Dai
- State Key Laboratory of Bio-Organic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; 345 Ling Ling Rd Shanghai 200032 China
| | - Zheng Wang
- Informatics and Technology; Astra Zeneca China; Shanghai China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Sciences; 345 Ling Ling Rd Shanghai 200032 China
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37
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James J, Akula R, Guiry PJ. Pd-Catalyzed Decarboxylative Asymmetric Protonation of Sterically Hindered α-Aryl Lactones and Dihydrocoumarins. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800724] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jinju James
- Centre for Synthesis and Chemical Biology, School of Chemistry; University College Dublin, Belfield; Dublin 4 Ireland
| | - Ramulu Akula
- Synthesis & Solid State Pharmaceutical Centre (SSPC), School of Chemistry; University College Dublin, Belfield; Dublin 4 Ireland
| | - Patrick J. Guiry
- Centre for Synthesis and Chemical Biology, School of Chemistry; University College Dublin, Belfield; Dublin 4 Ireland
- Synthesis & Solid State Pharmaceutical Centre (SSPC), School of Chemistry; University College Dublin, Belfield; Dublin 4 Ireland
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38
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Cheng F, Lu W, Huang W, Wen L, Li M, Meng F. Cu-catalyzed enantioselective synthesis of tertiary benzylic copper complexes and their in situ addition to carbonyl compounds. Chem Sci 2018; 9:4992-4998. [PMID: 29938027 PMCID: PMC5989696 DOI: 10.1039/c8sc00827b] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 04/10/2018] [Indexed: 12/13/2022] Open
Abstract
Catalytic chemo- and enantioselective generation of tertiary benzylic copper complexes from Cu-B(pin) (pin = pinacolato) additions to 1,1-disubstituted alkenes followed by in situ reactions with ketones and carboxylic acid phenol esters to construct multifunctional alkylboron compounds that contain quaternary stereogenic centers is presented. The method is distinguished by the unprecedented reaction mode of tertiary benzylic Cu complexes, allowing reaction with a wide range of carbonyl electrophiles in good yields and with high chemo-, site-, diastereo- and enantioselectivity. The catalytic protocol was performed with easily accessible chiral ligands and copper salts at ambient temperature. Functionalization of multifunctional alkylboron products provides useful building blocks that are otherwise difficult to access.
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Affiliation(s)
- Fengchang Cheng
- State Key Laboratory of Organometallic Chemistry , Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai , 200032 , China .
| | - Wenxin Lu
- State Key Laboratory of Organometallic Chemistry , Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai , 200032 , China .
| | - Wei Huang
- State Key Laboratory of Organometallic Chemistry , Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai , 200032 , China .
| | - Lu Wen
- State Key Laboratory of Organometallic Chemistry , Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai , 200032 , China .
| | - Mingfeng Li
- State Key Laboratory of Organometallic Chemistry , Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai , 200032 , China .
| | - Fanke Meng
- State Key Laboratory of Organometallic Chemistry , Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai , 200032 , China .
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39
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Huang X, Oh WRJJ, Zhou JS. Palladium-Catalyzed Enantioselective Arylation of Racemic Ketones to Form Bridged Bicycles via Dynamic Kinetic Resolution. Angew Chem Int Ed Engl 2018; 57:7673-7677. [PMID: 29709091 DOI: 10.1002/anie.201804318] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Indexed: 11/08/2022]
Abstract
Enantioselective α-arylation of racemic ketones containing existing α'-stereocenters is reported for the first time via base-induced dynamic kinetic resolution. Bridged bicyclic rings are formed in good ee values, which are difficult to obtain otherwise. Furthermore, reactions in DMSO-d6 resulted in extensive deuteration of both α- and α'-positions in the products, thus supporting a pathway involving rapid, reversible deprotonation of ketones under catalytic conditions.
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Affiliation(s)
- Xiaolei Huang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, SPMS-CBC-06-03, Singapore, 637371, Singapore
| | - William Ray Jun Jie Oh
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, SPMS-CBC-06-03, Singapore, 637371, Singapore
| | - Jianrong Steve Zhou
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, SPMS-CBC-06-03, Singapore, 637371, Singapore
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40
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Palladium-Catalyzed Enantioselective Arylation of Racemic Ketones to Form Bridged Bicycles via Dynamic Kinetic Resolution. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804318] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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41
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Schwarzer MC, Fujioka A, Ishii T, Ohmiya H, Mori S, Sawamura M. Enantiocontrol by assembled attractive interactions in copper-catalyzed asymmetric direct alkynylation of α-ketoesters with terminal alkynes: OH···O/sp 3-CH···O two-point hydrogen bonding combined with dispersive attractions. Chem Sci 2018; 9:3484-3493. [PMID: 29780478 PMCID: PMC5933290 DOI: 10.1039/c8sc00527c] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 02/27/2018] [Indexed: 12/29/2022] Open
Abstract
Copper-catalyzed asymmetric direct alkynylation of α-ketoesters with terminal alkynes with chiral prolinol-phosphine ligands, most preferably (αR,2S)-1-(2-dicyclohexylphosphinobenzyl)-α-neopentyl-2-pyrrolidinemethanol, afforded various enantioenriched chiral propargylic tertiary alcohols. Quantum-chemical calculations using the BP86 density functional including Grimme's empirical dispersion correction [DF-BP86-D3(BJ)-PCM(tBuOH)/TZVPP//DF-BP86-D3(BJ)/SVP] show the occurrence of OH···O/sp3-CH···O two-point hydrogen bonding between the chiral ligand and the carbonyl group of the ketoester in the stereo-determining transition states. Combined with the hydrogen-bonding interactions orienting the ketoester substrate, dispersive attractions between the chiral ligand (P-cyclohexyl groups) and the ketoester in the favored transition states, rather than steric repulsions in the disfavored transition state explain the enantioselectivity of the asymmetric copper catalysis.
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Affiliation(s)
- Martin C Schwarzer
- Institute of Quantum Beam Science , Ibaraki University , Mito , Ibaraki 310-8512 , Japan .
| | - Akane Fujioka
- Department of Chemistry , Faculty of Science , Hokkaido University , Sapporo 060-0810 , Japan .
| | - Takaoki Ishii
- Department of Chemistry , Faculty of Science , Hokkaido University , Sapporo 060-0810 , Japan .
| | - Hirohisa Ohmiya
- Division of Pharmaceutical Sciences , Graduate School of Medical Sciences , Kanazawa University , Kakuma-machi , Kanazawa 920-1192 , Japan
| | - Seiji Mori
- Institute of Quantum Beam Science , Ibaraki University , Mito , Ibaraki 310-8512 , Japan .
| | - Masaya Sawamura
- Department of Chemistry , Faculty of Science , Hokkaido University , Sapporo 060-0810 , Japan .
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42
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Usui K. [Development of New Chiral Phosphine Ligands with Helical Environments and Their Application in Asymmetric Catalytic Reactions]. YAKUGAKU ZASSHI 2017; 137:1381-1390. [PMID: 29093375 DOI: 10.1248/yakushi.17-00151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The design and development of new chiral ligands to enable precise stereocontrol in a wide variety of reactions is one of the most important branches of organic synthesis. To date, the development of hybrid ligands containing both σ-donating and π-donating groups has attracted considerable attention, with unprecedented reactivities and stereoselectivities being observed. Therefore to develop efficient hybrid chiral ligands with novel structural motifs, we envisage that helicene would be a suitable π-donor efficiently to construct a helical environment around a metal center. In this context, we herein describe our recent efforts to develop a series of novel chiral [5]helicene-derived phosphine ligands (L1, with a 7,8-dihydro[5]helicene core structure, and L2, with a fully aromatic [5]helicene core structure). The prepared ligands, and in particular L1, were found highly effective in the asymmetric allylation of 1,3-diphenylallyl acetate with indoles and etherification with alcohols. Furthermore, in the asymmetric Suzuki-Miyaura coupling reaction, L2 exhibited excellent enantioselectivities. Finally, density functional theory studies were employed to propose a model that accounts for the origin of such high enantioselectivity in these reactions.
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Affiliation(s)
- Kazuteru Usui
- Graduate School of Pharmaceutical Sciences, Kyushu University
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43
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Abstract
γ-Butenolides, γ-butyrolactones, and derivatives, especially in enantiomerically pure form, constitute the structural core of numerous natural products which display an impressive range of biological activities which are important for the development of novel physiological and therapeutic agents. Furthermore, optically active γ-butenolides and γ-butyrolactones serve also as a prominent class of chiral building blocks for the synthesis of diverse biological active compounds and complex molecules. Taking into account the varying biological activity profiles and wide-ranging structural diversity of the optically active γ-butenolide or γ-butyrolactone structure, the development of asymmetric synthetic strategies for assembling such challenging scaffolds has attracted major attention from synthetic chemists in the past decade. This review offers an overview of the different enantioselective synthesis of γ-butenolides and γ-butyrolactones which employ catalytic amounts of metal complexes or organocatalysts, with emphasis focused on the mechanistic issues that account for the observed stereocontrol of the representative reactions, as well as practical applications and synthetic potentials.
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Affiliation(s)
- Bin Mao
- Stratingh Institute for Chemistry, University of Groningen , Nijenborg 4, 9747 AG Groningen, The Netherlands.,National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology , Hangzhou 310014, P. R. China
| | - Martín Fañanás-Mastral
- Stratingh Institute for Chemistry, University of Groningen , Nijenborg 4, 9747 AG Groningen, The Netherlands.,Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela , Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain
| | - Ben L Feringa
- Stratingh Institute for Chemistry, University of Groningen , Nijenborg 4, 9747 AG Groningen, The Netherlands
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44
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Kingston C, Guiry PJ. Enantiodivergent Synthesis of Tertiary α-Aryl 1-Indanones: Evidence Toward Disparate Mechanisms in the Palladium-Catalyzed Decarboxylative Asymmetric Protonation. J Org Chem 2017; 82:3806-3819. [DOI: 10.1021/acs.joc.7b00303] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cian Kingston
- Synthesis and Solid State
Pharmaceutical Centre, Centre for Synthesis and Chemical Biology,
School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Patrick J. Guiry
- Synthesis and Solid State
Pharmaceutical Centre, Centre for Synthesis and Chemical Biology,
School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
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45
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Dong Y, Svane K, Lemay JC, Groves MN, McBreen PH. STM Study of Ketopantolactone/(R)-1-(1-Naphthyl)ethylamine Complexes on Pt(111): Comparison of Prochiral and Enantiomeric Ratios and Examination of the Contribution of CH···OC Bonding. ACS Catal 2017. [DOI: 10.1021/acscatal.6b02590] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yi Dong
- Department of Chemistry, Laval University, Quebec City, Quebec G1V 0A6, Canada
| | - Katrine Svane
- Department of Chemistry, University of Bath, Bath BA2 7AY, U.K
| | | | - Michael N. Groves
- Department of Chemistry and Biochemistry, California State University, Fullerton, Fullerton, California 92834, United States
| | - Peter H. McBreen
- Department of Chemistry, Laval University, Quebec City, Quebec G1V 0A6, Canada
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46
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Zhang SJ, Sun WW, Yu QY, Cao P, Dong XP, Wu B. Stereoselective synthesis of (−)-3-PPP through palladium-catalysed unactivated C(sp3)–H arylation at the C-3 position of l-pipecolinic acid. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.12.051] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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47
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James J, Guiry PJ. Highly Enantioselective Construction of Sterically Hindered α-Allyl-α-Aryl Lactones via Palladium-Catalyzed Decarboxylative Asymmetric Allylic Alkylation. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03355] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jinju James
- Centre for Synthesis and
Chemical Biology, School of Chemistry, University College Dublin Belfield, Dublin
4, Ireland
| | - Patrick J. Guiry
- Centre for Synthesis and
Chemical Biology, School of Chemistry, University College Dublin Belfield, Dublin
4, Ireland
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48
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Jiao Z, Chee KW, Zhou J“S. Palladium-Catalyzed Asymmetric α-Arylation of Alkylnitriles. J Am Chem Soc 2016; 138:16240-16243. [DOI: 10.1021/jacs.6b11610] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Zhiwei Jiao
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Kwok Wei Chee
- Division of Chemistry and
Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Jianrong “Steve” Zhou
- 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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49
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Jiao Z, Beiger JJ, Jin Y, Ge S, Zhou JS, Hartwig JF. Palladium-Catalyzed Enantioselective α-Arylation of α-Fluoroketones. J Am Chem Soc 2016; 138:15980-15986. [DOI: 10.1021/jacs.6b09580] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhiwei Jiao
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Jason J. Beiger
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Yushu Jin
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Shaozhong Ge
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Jianrong Steve Zhou
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - John F. Hartwig
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
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50
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Yang XH, Yue HT, Yu N, Li YP, Xie JH, Zhou QL. Iridium-catalyzed asymmetric hydrogenation of racemic α-substituted lactones to chiral diols. Chem Sci 2016; 8:1811-1814. [PMID: 28451302 PMCID: PMC5396509 DOI: 10.1039/c6sc04609f] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Accepted: 11/14/2016] [Indexed: 12/30/2022] Open
Abstract
We report a protocol for the highly efficient iridium-catalyzed asymmetric hydrogenation of racemic α-substituted lactones via dynamic kinetic resolution. Using Ir-SpiroPAP (R)-1d as a catalyst, a wide range of chiral diols were prepared in a high yield (80-95%) with a high enantioselectivity (up to 95% ee) under mild reaction conditions. This protocol was used for enantioselective syntheses of (-)-preclamol and a chiral 2,5-disubstituted tetrahydropyran.
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Affiliation(s)
- Xiao-Hui Yang
- State Key Laboratory and Institute of Elemento-Organic Chemistry , Nankai University , Tianjin 300071 , China . ;
| | - Hai-Tao Yue
- State Key Laboratory and Institute of Elemento-Organic Chemistry , Nankai University , Tianjin 300071 , China . ;
| | - Na Yu
- State Key Laboratory and Institute of Elemento-Organic Chemistry , Nankai University , Tianjin 300071 , China . ;
| | - Yi-Pan Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry , Nankai University , Tianjin 300071 , China . ;
| | - Jian-Hua Xie
- State Key Laboratory and Institute of Elemento-Organic Chemistry , Nankai University , Tianjin 300071 , China . ;
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-Organic Chemistry , Nankai University , Tianjin 300071 , China . ; .,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) , Nankai University , Tianjin 300071 , China
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