1
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von Münchow T, Liu YR, Parmar R, Peters SE, Trienes S, Ackermann L. Cobaltaelectro-Catalyzed C-H Activation for Central and Axial Double Enantio-Induction. Angew Chem Int Ed Engl 2024:e202405423. [PMID: 38758011 DOI: 10.1002/anie.202405423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 04/22/2024] [Accepted: 05/03/2024] [Indexed: 05/18/2024]
Abstract
In recent years, enantioselective electrocatalysis has surfaced as an increasingly-effective platform for sustainable molecular synthesis. Despite indisputable progress, strategies that allow the control of two distinct stereogenic elements with high selectivity remain elusive. In contrast, we, herein, describe electrochemical cobalt-catalyzed C-H activations that enable the installation of chiral stereogenic centers along with a chiral axis with high levels of enantio- and diastereoselectivities. The developed electrocatalysis strategy allowed for C-H/N-H activations/annulations with cyclic and non-cyclic alkenes providing expedient access to various central as well as atropo-chiral dihydroisoquinolinones paired to the valuable hydrogen evolution reaction. Studies on the atropo-stability of the obtained compounds demonstrated that the exceedingly mild conditions ensured by the electrocatalytic process were key for the achieved high stereoselectivities.
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Affiliation(s)
- Tristan von Münchow
- Institut für Organische und Biomolekulare Chemie, Wöhler-Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Yi-Ru Liu
- Institut für Organische und Biomolekulare Chemie, Wöhler-Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Rahul Parmar
- Institut für Organische und Biomolekulare Chemie, Wöhler-Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Sven Erik Peters
- Institut für Organische und Biomolekulare Chemie, Wöhler-Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Sven Trienes
- Institut für Organische und Biomolekulare Chemie, Wöhler-Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Wöhler-Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
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2
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Zhang ZJ, Jacob N, Bhatia S, Boos P, Chen X, DeMuth JC, Messinis AM, Jei BB, Oliveira JCA, Radović A, Neidig ML, Wencel-Delord J, Ackermann L. Iron-catalyzed stereoselective C-H alkylation for simultaneous construction of C-N axial and C-central chirality. Nat Commun 2024; 15:3503. [PMID: 38664372 PMCID: PMC11045758 DOI: 10.1038/s41467-024-47589-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 04/04/2024] [Indexed: 04/28/2024] Open
Abstract
The assembly of chiral molecules with multiple stereogenic elements is challenging, and, despite of indisputable advances, largely limited to toxic, cost-intensive and precious metal catalysts. In sharp contrast, we herein disclose a versatile C-H alkylation using a non-toxic, low-cost iron catalyst for the synthesis of substituted indoles with two chiral elements. The key for achieving excellent diastereo- and enantioselectivity was substitution on a chiral N-heterocyclic carbene ligand providing steric hindrance and extra represented by noncovalent interaction for the concomitant generation of C-N axial chirality and C-stereogenic center. Experimental and computational mechanistic studies have unraveled the origin of the catalytic efficacy and stereoselectivity.
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Affiliation(s)
- Zi-Jing Zhang
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, 37077, Göttingen, Germany
| | - Nicolas Jacob
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg/Université de Haute-Alsace, ECPM, 67087, Strasbourg, France
| | - Shilpa Bhatia
- Department of Chemistry, University of Rochester, Rochester, NY, 14627, USA
| | - Philipp Boos
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, 37077, Göttingen, Germany
| | - Xinran Chen
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, 37077, Göttingen, Germany
- Department of Chemistry, Zhejiang University, 310027, Hangzhou, China
| | - Joshua C DeMuth
- Department of Chemistry, University of Rochester, Rochester, NY, 14627, USA
| | - Antonis M Messinis
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, 37077, Göttingen, Germany
| | - Becky Bongsuiru Jei
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, 37077, Göttingen, Germany
| | - João C A Oliveira
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, 37077, Göttingen, Germany
| | - Aleksa Radović
- Department of Chemistry, University of Rochester, Rochester, NY, 14627, USA
| | - Michael L Neidig
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
| | - Joanna Wencel-Delord
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg/Université de Haute-Alsace, ECPM, 67087, Strasbourg, France.
- Institut für Organische Chemie, Universität Würzburg, 97074 Würzburg, Germany.
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, 37077, Göttingen, Germany.
- Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, 37077, Göttingen, Germany.
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3
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Lin Z, Oliveira JC, Scheremetjew A, Ackermann L. Palladium-Catalyzed Electrooxidative Double C-H Arylation. J Am Chem Soc 2024; 146:228-239. [PMID: 38150013 PMCID: PMC10785825 DOI: 10.1021/jacs.3c08479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 12/08/2023] [Accepted: 12/13/2023] [Indexed: 12/28/2023]
Abstract
The electrochemical transition metal-catalyzed cross-dehydrogenative reaction has emerged as a promising platform to achieve a sustainable and atom-economic organic synthesis that avoids hazardous oxidants and minimizes undesired byproducts and circuitous functional group operations. However, a poor mechanistic understanding still prevents the widespread adoption of this strategy. In this regard, we herein present an electrochemical palladium-catalyzed oxidative coupling strategy to access biaryls in the absence of a stoichiometric chemical oxidant. The robust palladaelectrocatalysis considerably suppresses the occurrence of homocoupling and oxygenation, being compatible even with electron-deficient arenes. Late-stage functionalization and Boscalid precursor synthesis further highlighted the practical importance of our electrolysis. Remarkably, mechanistic studies including the evaluation of the reaction order of each component by variable time normalization analysis (VTNA) and initial rate analysis, H/D exchange experiment, kinetic isotope effect, and stoichiometric organometallic experiments provided strong support for the involvement of transmetalation between two organopalladium complexes in the turnover limiting step. Therefore, matching the concentrations or lifetimes of two distinct organopalladium intermediates is revealed to be a pivot to the success of electrooxidative catalysis. Moreover, the presence of cationic copper(II) seems to contribute to the stabilization of the palladium(0) catalyst instead of playing a role in the oxidation of the catalyst.
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Affiliation(s)
- Zhipeng Lin
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
- Wöhler
Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - João C.
A. Oliveira
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
- Wöhler
Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Alexej Scheremetjew
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
- Wöhler
Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Lutz Ackermann
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
- Wöhler
Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
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4
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Roos CB, Chiang CH, Murray LAM, Yang D, Schulert L, Narayan ARH. Stereodynamic Strategies to Induce and Enrich Chirality of Atropisomers at a Late Stage. Chem Rev 2023; 123:10641-10727. [PMID: 37639323 DOI: 10.1021/acs.chemrev.3c00327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Enantiomers, where chirality arises from restricted rotation around a single bond, are atropisomers. Due to the unique nature of the origins of their chirality, synthetic strategies to access these compounds in an enantioselective manner differ from those used to prepare enantioenriched compounds containing point chirality arising from an unsymmetrically substituted carbon center. In particular stereodynamic transformations, such as dynamic kinetic resolutions, thermodynamic dynamic resolutions, and deracemizations, which rely on the ability to racemize or interconvert enantiomers, are a promising set of transformations to prepare optically pure compounds in the late stage of a synthetic sequence. Translation of these synthetic approaches from compounds with point chirality to atropisomers requires an expanded toolbox for epimerization/racemization and provides an opportunity to develop a new conceptual framework for the enantioselective synthesis of these compounds.
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5
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Yue H, Zhu C, Rueping M. Electrochemical cobalt catalysis enabled construction of diverse chiral skeletons via C-H activation. Sci Bull (Beijing) 2023; 68:1730-1732. [PMID: 37500403 DOI: 10.1016/j.scib.2023.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Affiliation(s)
- Huifeng Yue
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China.
| | - Chen Zhu
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Magnus Rueping
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
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6
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Xiong M, Chen F, Shu Y, Wu X, Tang J, Yang F, Xing D. Iridium(I)-Catalyzed Atroposelective Alkenylation of Heterobiaryls with Terminal Alkynes. Org Lett 2023; 25:5703-5708. [PMID: 37523590 DOI: 10.1021/acs.orglett.3c01453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Herein we report an iridium(I)-catalyzed atroposelective alkenylation of isoquinoline-derived heterobiaryls with terminal alkynes. In the presence of a cationic iridium(I) catalyst with (R)-SEGPHOS as the chiral ligand, this atom-economical alkenylation protocol allows the rapid construction of a series of axially chiral alkenylated heterobiaryls in moderate to good yields with good to high enantioselectivities.
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Affiliation(s)
- Maoqian Xiong
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Feifei Chen
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Yuhang Shu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Xiang Wu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Jie Tang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Fan Yang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
| | - Dong Xing
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
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7
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Lin Y, von Münchow T, Ackermann L. Cobaltaelectro-Catalyzed C-H Annulation with Allenes for Atropochiral and P-Stereogenic Compounds: Late-Stage Diversification and Continuous Flow Scale-Up. ACS Catal 2023; 13:9713-9723. [PMID: 38076330 PMCID: PMC10704562 DOI: 10.1021/acscatal.3c02072] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/14/2023] [Indexed: 01/25/2024]
Abstract
The 3d metallaelectro-catalyzed C-H activation has been identified as an increasingly viable strategy to access valuable organic molecules in a resource-economic fashion under exceedingly mild reaction conditions. However, the development of enantioselective 3d metallaelectro-catalyzed C-H activation is very challenging and in its infancy. Here, we disclose the merger of cobaltaelectro-catalyzed C-H activation with asymmetric catalysis for the highly enantioselective annulation of allenes. A broad range of C-N axially chiral and P-stereogenic compounds were thereby obtained in good yields of up to 98% with high enantioselectivities of up to >99% ee. The practicality of this approach was demonstrated by the diversification of complex bioactive compounds and drug molecules as well as decagram scale enantioselective electrocatalysis in continuous flow.
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Affiliation(s)
- Ye Lin
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität
Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Tristan von Münchow
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität
Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Lutz Ackermann
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität
Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
- WISCh
(Wöhler-Research Institute for Sustainable Chemistry), Georg-August-Universität
Göttingen, Tammannstraße
2, 37077 Göttingen, Germany
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8
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Baroliya PK, Dhaker M, Panja S, Al-Thabaiti SA, Albukhari SM, Alsulami QA, Dutta A, Maiti D. Transition Metal-Catalyzed C-H Functionalization Through Electrocatalysis. CHEMSUSCHEM 2023:e202202201. [PMID: 36881013 DOI: 10.1002/cssc.202202201] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 03/06/2023] [Indexed: 06/18/2023]
Abstract
Electrochemically promoted transition metal-catalyzed C-H functionalization has emerged as a promising area of research over the last few decades. However, development in this field is still at an early stage compared to traditional functionalization reactions using chemical-based oxidizing agents. Recent reports have shown increased attention on electrochemically promoted metal-catalyzed C-H functionalization. From the standpoint of sustainability, environmental friendliness, and cost effectiveness, electrochemically promoted oxidation of a metal catalyst offers a mild, efficient, and atom-economical alternative to traditional chemical oxidants. This Review discusses advances in the field of transition metal-electrocatalyzed C-H functionalization over the past decade and describes how the unique features of electricity enable metal-catalyzed C-H functionalization in an economic and sustainable way.
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Affiliation(s)
- Prabhat Kumar Baroliya
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, 313001, India
| | - Mukesh Dhaker
- Department of Chemistry, Mohanlal Sukhadia University, Udaipur, 313001, India
| | - Subir Panja
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
| | - Shaeel Ahmed Al-Thabaiti
- Department of Chemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Soha M Albukhari
- Department of Chemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Qana A Alsulami
- Department of Chemistry, Faculty of Sciences, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Arnab Dutta
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
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9
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Choppin S, Wencel-Delord J. Sulfoxide-Directed or 3d-Metal Catalyzed C-H Activation and Hypervalent Iodines as Tools for Atroposelective Synthesis. Acc Chem Res 2023; 56:189-202. [PMID: 36705934 DOI: 10.1021/acs.accounts.2c00573] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
ConspectusThe expanding applications of atropisomeric compounds combined with the growing diversity of such chiral molecules translate into an urgent need for innovative synthetic strategies allowing their rapid, efficient, and sustainable synthesis. Recently, the C-H activation approach has provided new opportunities for synthesizing axially chiral compounds. The two complementary approaches allowing implementation of the C-H activation methodology toward the synthesis of the chiral molecules imply either ortho-functionalization of the preexisting prochiral or atropo-unstable biaryl substrates or direct C-H arylation of sterically encumbered aromatics. The first approach required the preinstallation of a directing group on a biaryl precursor, which drastically limits the diversity of thus generated products. To tackle this important synthetic limitation, we have envisioned using a chiral sulfoxide as both directing group and chiral auxiliary. Indeed, in addition to efficiently coordinating the Pd-catalyst thus allowing chiral induction, the sulfoxide moiety can be easily removed, via the sulfoxide/lithium exchange, after the C-H activation step, thus guaranteeing an almost unlimited postdiversification of the atropisomeric products. The efficiency and generality of this concept could be illustrated by developing atropo-diastereoselective oxidative Heck reaction, direct acetoxylation, and iodination, as well as direct arylation. Besides, the synthetic utility of this methodology was demonstrated by designing an expedient synthesis of a direct steganone precursor. This unique transformation also allowed us to build up unprecedented triaryl scaffolds with two perfectly controlled chiral axes, original chiral skeletons for new ligand design. While considering the atroposelective direct arylations, the clear antagonism between the harsh reaction conditions frequently required for the coupling of two sterically hindered compounds and the atropo-stability of the new product, resulted in the scarcity of such transformations. To solve this fundamental challenge, we have focused on the application of a low-valent cobalt catalyst, prompted to catalyze C-H activation of indoles at the C2 position under extremely mild reaction conditions (room temperature). Accordingly, atroposelective C2-arylation of indoles could be achieved using an original carbene ligand and delivering the uncommon atropoisomerically pure indoles in excellent yields and enantioselectivities. Detailed combined experimental and theoretical mechanistic studies shed light on the mechanism of this transformation, providing strong evidence regarding the origin of the enantioselectivity. Finally, the antagonism between steric hindrance required to guarantee the atropo-stability of a molecule and harsh reaction conditions required to couple two partners is a strong limitation not only for the development of atroposelective C-H arylation reaction but also for the development of direct synthesis of the C-N axially chiral compounds. Despite the long history and incredible advances achieved in Ullmann-Goldberg and Buchwald-Hartwig couplings, atroposelective versions of such transformations have remained unprecedented until recently. Our idea to tackle this challenging issue consisted in using hypervalent iodines as highly reactive coupling partners, thus allowing the desired N-arylations to occur at room temperature. This hypothesis could be validated by reporting first atropo-diastereoselective Cu-catalyzed N-arylation, using sulfoxide λ3-iodanes as the coupling partners. Subsequently, the enantioselective version of this atroposelective N-arylation was successfully established by using a chiral Cu-complex bearing a BOX ligand. In conclusion, we report herein designing tailored-made solutions to provide new synthetic strategies to construct the atropisomeric molecules, including biaryls and C-N axially chiral molecules.
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Affiliation(s)
- Sabine Choppin
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg/Université de Haute Alsace, ECPM. 25 rue Becquerel, 67087 Strasbourg, France
| | - Joanna Wencel-Delord
- Laboratoire d'Innovation Moléculaire et Applications (UMR CNRS 7042), Université de Strasbourg/Université de Haute Alsace, ECPM. 25 rue Becquerel, 67087 Strasbourg, France
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10
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Thönnißen V, Atodiresei IL, Patureau FW. Atroposelective Nenitzescu Indole Synthesis. Chemistry 2023; 29:e202300279. [PMID: 36725685 DOI: 10.1002/chem.202300279] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/03/2023]
Abstract
In the past decade, compounds bearing a stereogenic C-N axis have gained significant attention in fields ranging from ligand to drug design. Yet, the atroposelective synthesis of these molecules remains a considerable challenge. In contrast to recent methods using more advanced chiral catalysts, a very simply accessed Jacobsen-type chromium(III)-salen complex was used here as a chiral enantiopure Lewis acid catalyst for a highly atroposelective Nenitzescu indole synthesis. Mild reaction conditions afforded various 5-hydroxybenzo[g]indoles in up to 97 % yield. Moreover, through a simple work-up, very high enantiomeric excesses of up to 99 % could be obtained.
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Affiliation(s)
- Vinzenz Thönnißen
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Iuliana L Atodiresei
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Frederic W Patureau
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
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11
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Li Y, Liou Y, Oliveira JCA, Ackermann L. Ruthenium(II)/Imidazolidine Carboxylic Acid-Catalyzed C-H Alkylation for Central and Axial Double Enantio-Induction. Angew Chem Int Ed Engl 2022; 61:e202212595. [PMID: 36108175 PMCID: PMC9828380 DOI: 10.1002/anie.202212595] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Indexed: 01/12/2023]
Abstract
Enantioselective C-H activation has surfaced as a transformative toolbox for the efficient assembly of chiral molecules. However, despite of major advances in rhodium and palladium catalysis, ruthenium(II)-catalyzed enantioselective C-H activation has thus far largely proven elusive. In contrast, we herein report on a ruthenium(II)-catalyzed highly regio-, diastereo- and enantioselective C-H alkylation. The key to success was represented by the identification of novel C2-symmetric chiral imidazolidine carboxylic acids (CICAs), which are easily accessible in a one-pot fashion, as highly effective chiral ligands. This ruthenium/CICA system enabled the efficient installation of central and axial chirality, and featured excellent branched to linear ratios with generally >20 : 1 dr and up to 98 : 2 er. Mechanistic studies by experiment and computation were carried out to understand the catalyst mode of action.
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Affiliation(s)
- Yanjun Li
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Yan‐Cheng Liou
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
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12
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Lai XL, Chen M, Wang Y, Song J, Xu HC. Photoelectrochemical Asymmetric Catalysis Enables Direct and Enantioselective Decarboxylative Cyanation. J Am Chem Soc 2022; 144:20201-20206. [DOI: 10.1021/jacs.2c09050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Xiao-Li Lai
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Ming Chen
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Yuqi Wang
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, PR China
| | - Jinshuai Song
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, PR China
| | - Hai-Chao Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
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13
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Zhang H, Liang S, Wei D, Xu K, Zeng C. Electrocatalytic Generation of Acyl Radicals and Their Applications. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200794] [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)
- Haonan Zhang
- Faculty of Environmental and Life Beijing University of Technology 100 Pingleyuan Rd. 100124 Beijing China
| | - Sen Liang
- Beijing Key Laboratory of Flavor Chemistry Beijing Technology and Business University 100048 Beijing China
| | - Dengchao Wei
- Faculty of Environmental and Life Beijing University of Technology 100 Pingleyuan Rd. 100124 Beijing China
| | - Kun Xu
- Faculty of Environmental and Life Beijing University of Technology 100 Pingleyuan Rd. 100124 Beijing China
| | - Chengchu Zeng
- Faculty of Environmental and Life Beijing University of Technology 100 Pingleyuan Rd. 100124 Beijing China
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14
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Wang X, Wu S, Zhong Y, Wang Y, Pan Y, Tang H. Electrochemically mediated decarboxylative acylation of N-nitrosoanilines with α-oxocarboxylic acids. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.05.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Yao Y, Su S, Wu N, Wu W, Jiang H. The cobalt( ii)-catalyzed acyloxylation of picolinamides with bifunctional silver carboxylate via C–H bond activation. Org Chem Front 2022. [DOI: 10.1039/d2qo01131j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The cobalt(ii)-catalyzed C–H bond acyloxylation of picolinamides with bifunctional silver carboxylate has been developed. The mild and practical esterification provides an atom-economic route to access to polysubstituted naphthalene compounds.
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Affiliation(s)
- Yongqi Yao
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510641 Guangzhou, People's Republic of China
| | - Shaoting Su
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510641 Guangzhou, People's Republic of China
| | - Nan Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510641 Guangzhou, People's Republic of China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510641 Guangzhou, People's Republic of China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 510641 Guangzhou, People's Republic of China
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