1
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Mbaezue II, Li SG, Reddy ACS, Titi HM, Tsantrizos YS. Solvent-Switchable Remote C-H Activation via 1,4-Palladium Migration Enables Site-Selective C-P Bond Formation: A Tool for the Synthesis of P-Chiral Phosphinyl Imidazoles. Org Lett 2024; 26:4200-4204. [PMID: 38739265 DOI: 10.1021/acs.orglett.4c00903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Solvent-switchable and site-selective phosphorylation of imidazoles at the C2 or C5 position of the imidazole ring was achieved via 1,4-palladium migration. P-Chiral tert-butyl(aryl)phosphine oxides were cross-coupled to 1-(2-bromophenyl)-1H-imidazoles with high enantiospecificity, thereby leading to a novel class of chiral imidazole-based phosphine oxides. As proof of concept, reduction of an analogue yielded the corresponding P-chiral 2-phosphinyl imidazole ligand, which was shown to induce high enantioselectivity in the formation of axially chiral molecules synthesized via Pd-catalyzed Suzuki-Miyaura cross-coupling.
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Affiliation(s)
- Ifenna I Mbaezue
- Department of Chemistry, McGill University. 801 Sherbrooke St. West, Montréal, Québec H3A 0B8, Canada
| | - Shi-Guang Li
- Department of Chemistry, McGill University. 801 Sherbrooke St. West, Montréal, Québec H3A 0B8, Canada
| | - Angula C S Reddy
- Department of Chemistry, McGill University. 801 Sherbrooke St. West, Montréal, Québec H3A 0B8, Canada
| | - Hatem M Titi
- Department of Chemistry, McGill University. 801 Sherbrooke St. West, Montréal, Québec H3A 0B8, Canada
| | - Youla S Tsantrizos
- Department of Chemistry, McGill University. 801 Sherbrooke St. West, Montréal, Québec H3A 0B8, Canada
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2
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Lansbergen B, Tewari S, Tomczyk I, Seemann M, Buchholz HL, Rippegarten M, Cieminski DC, Juliá F, Ritter T. Reductive Cross-Coupling of a Vinyl Thianthrenium Salt and Secondary Alkyl Iodides. Angew Chem Int Ed Engl 2023; 62:e202313659. [PMID: 37966018 DOI: 10.1002/anie.202313659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/07/2023] [Accepted: 11/10/2023] [Indexed: 11/16/2023]
Abstract
We report the first reductive vinylation of alkyl iodides. The reaction uses a vinyl thianthrenium salt, a palladium catalyst, and an alkyl zinc intermediate formed in situ to trap the Ln PdII (vinyl) complex formed after oxidative addition before it undergoes undesired homocoupling to form butadiene.
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Affiliation(s)
- Beatrice Lansbergen
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Srija Tewari
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Ireneusz Tomczyk
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Maik Seemann
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Henning Louis Buchholz
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Mike Rippegarten
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Daniel Chamier Cieminski
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Fabio Juliá
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Tobias Ritter
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
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3
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Guo FK, Lu YL, Huang MY, Yang JM, Guo JL, Wan ZY, Zhu SF. Wittig/B─H insertion reaction: A unique access to trisubstituted Z-alkenes. SCIENCE ADVANCES 2023; 9:eadj2486. [PMID: 37703379 PMCID: PMC10499320 DOI: 10.1126/sciadv.adj2486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/11/2023] [Indexed: 09/15/2023]
Abstract
The Wittig reaction, which is one of the most effective methods for synthesizing alkenes from carbonyl compounds, generally gives thermodynamically stable E-alkenes, and synthesis of trisubstituted Z-alkenes from ketones presents notable challenges. Here, we report what we refer to as Wittig/B─H insertion reactions, which innovatively combine a Wittig reaction with carbene insertion into a B─H bond and constitute a promising method for the synthesis of thermodynamically unstable trisubstituted Z-boryl alkenes. Combined with the easy transformations of boryl group, this methodology provides efficient access to a variety of previously unavailable trisubstituted Z-alkenes and thus provides a platform for discovery of pharmaceuticals. The unique Z-selectivity of the reaction is determined by the maximum overlap of the orbitals between the B─H bond of the borane adduct and the alkylidene carbene intermediate in the transition state.
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Affiliation(s)
- Feng-Kai Guo
- Frontiers Science Center for New Organic Matter, the State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Yi-Lin Lu
- Frontiers Science Center for New Organic Matter, the State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ming-Yao Huang
- Frontiers Science Center for New Organic Matter, the State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Ji-Min Yang
- Frontiers Science Center for New Organic Matter, the State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Jia-Lei Guo
- Frontiers Science Center for New Organic Matter, the State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zi-Yi Wan
- Frontiers Science Center for New Organic Matter, the State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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4
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Deng H, Bengsch M, Tchorz N, Neumann CN. Sterically Controlled Late‐Stage Functionalization of Bulky Phosphines. Chemistry 2022; 28:e202202074. [PMID: 35789048 PMCID: PMC9544633 DOI: 10.1002/chem.202202074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Indexed: 11/07/2022]
Abstract
The fine‐tuning of metal‐phosphine‐catalyzed reactions relies largely on accessing ever more precisely tuned phosphine ligands by de‐novo synthesis. Late‐stage C−H functionalization and diversification of commercial phosphines offers rapid access to entire libraries of derivatives based on privileged scaffolds. But existing routes, relying on phosphorus‐directed transformations, only yield functionalization of Csp2
−H bonds in a specific position relative to phosphorus. In contrast to phosphorus‐directed strategies, herein we disclose an orthogonal functionalization strategy capable of introducing a range of substituents into previously inaccessible positions on arylphosphines. The strongly coordinating phosphine group acts solely as a bystander in the sterically controlled borylation of bulky phosphines, and the resulting borylated phosphines serve as the supporting ligands for palladium during diversification through phosphine self‐assisted Suzuki‐Miyaura reactions.
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Affiliation(s)
- Hao Deng
- Department of Heterogeneous Catalysis Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| | - Marco Bengsch
- Department of Heterogeneous Catalysis Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| | - Nico Tchorz
- Department of Heterogeneous Catalysis Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| | - Constanze N. Neumann
- Department of Heterogeneous Catalysis Max-Planck-Institut für Kohlenforschung Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
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5
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McErlain H, Riley LM, Sutherland A. Palladium-Catalyzed C-P Bond-Forming Reactions of Aryl Nonaflates Accelerated by Iodide. J Org Chem 2021; 86:17036-17049. [PMID: 34726917 PMCID: PMC8650017 DOI: 10.1021/acs.joc.1c02172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Indexed: 11/28/2022]
Abstract
An iodide-accelerated, palladium-catalyzed C-P bond-forming reaction of aryl nonaflates is described. The protocol was optimized for the synthesis of aryl phosphine oxides and was found to be tolerant of a wide range of aryl nonaflates. The general nature of this transformation was established with coupling to other P(O)H compounds for the synthesis of aryl phosphonates and an aryl phosphinate. The straightforward synthesis of stable, isolable aryl nonaflates, in combination with the rapid C-P bond-forming reaction allows facile preparation of aryl phosphorus target compounds from readily available phenol starting materials. The synthetic utility of this general strategy was demonstrated with the efficient preparation of an organic light-emitting diode (OLED) material and a phosphonophenylalanine mimic.
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Affiliation(s)
- Holly McErlain
- School of Chemistry, The
Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Leanne M. Riley
- School of Chemistry, The
Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Andrew Sutherland
- School of Chemistry, The
Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, United Kingdom
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6
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Xiao S, Liu C, Song B, Wang L, Qi Y, Liu Y. Samarium-based Grignard-type addition of organohalides to carbonyl compounds under catalysis of CuI. Chem Commun (Camb) 2021; 57:6169-6172. [PMID: 34047318 DOI: 10.1039/d1cc00965f] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Grignard-type additions were readily achieved under the mediation of CuI (10 mol%) and samarium (2 equiv.) by employing various organohalides, e.g. benzyl, aryl, heterocyclic and aliphatic halides (Cl, Br or I), and diverse carbonyl compounds (e.g. carbonic esters, carboxylic esters, acid anhydrides, acyl chlorides, ketones, aldehydes, propylene epoxides and formamides) to afford alcohols, ketones and aldehydes, respectively, with high efficiency and chemoselectivity, in which the organosamarium intermediate might be involved.
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Affiliation(s)
- Shuhuan Xiao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Chen Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Bin Song
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Liang Wang
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Changcheng Rd. #700, Qingdao 266109, P. R. China
| | - Yan Qi
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yongjun Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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7
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Lansbergen B, Granatino P, Ritter T. Site-Selective C-H alkylation of Complex Arenes by a Two-Step Aryl Thianthrenation-Reductive Alkylation Sequence. J Am Chem Soc 2021; 143:7909-7914. [PMID: 34028272 PMCID: PMC8297726 DOI: 10.1021/jacs.1c03459] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Indexed: 12/28/2022]
Abstract
Herein, we present an undirected para-selective two-step C-H alkylation of complex arenes useful for late-stage functionalization. The combination of a site-selective C-H thianthrenation with palladium-catalyzed reductive electrophile cross-coupling grants access to a diverse range of synthetically useful alkylated arenes which cannot be accessed otherwise with comparable selectivity, diversity, and practicality. The robustness of this transformation is further demonstrated by thianthrenium-based reductive coupling of two complex fragments.
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Affiliation(s)
- Beatrice Lansbergen
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm Platz 1, D-45470 Mülheim an der
Ruhr, Germany
| | - Paola Granatino
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm Platz 1, D-45470 Mülheim an der
Ruhr, Germany
| | - Tobias Ritter
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm Platz 1, D-45470 Mülheim an der
Ruhr, Germany
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8
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Scherpf T, Steinert H, Großjohann A, Dilchert K, Tappen J, Rodstein I, Gessner VH. Efficient Pd-Catalyzed Direct Coupling of Aryl Chlorides with Alkyllithium Reagents. Angew Chem Int Ed Engl 2020; 59:20596-20603. [PMID: 32725943 PMCID: PMC7692947 DOI: 10.1002/anie.202008866] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Indexed: 12/13/2022]
Abstract
Organolithium compounds are amongst the most important organometallic reagents and frequently used in difficult metallation reactions. However, their direct use in the formation of C-C bonds is less established. Although remarkable advances in the coupling of aryllithium compounds have been achieved, Csp2 -Csp3 coupling reactions are very limited. Herein, we report the first general protocol for the coupling or aryl chlorides with alkyllithium reagents. Palladium catalysts based on ylide-substituted phosphines (YPhos) were found to be excellently suited for this transformation giving high selectivities at room temperature with a variety of aryl chlorides without the need for an additional transmetallation reagent. This is demonstrated in gram-scale synthesis including building blocks for materials chemistry and pharmaceutical industry. Furthermore, the direct coupling of aryllithiums as well as Grignard reagents with aryl chlorides was also easily accomplished at room temperature.
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Affiliation(s)
- Thorsten Scherpf
- Faculty of Chemistry and BiochemistryChair of Inorganic ChemistryRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Henning Steinert
- Faculty of Chemistry and BiochemistryChair of Inorganic ChemistryRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Angela Großjohann
- Faculty of Chemistry and BiochemistryChair of Inorganic ChemistryRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Katharina Dilchert
- Faculty of Chemistry and BiochemistryChair of Inorganic ChemistryRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Jens Tappen
- Faculty of Chemistry and BiochemistryChair of Inorganic ChemistryRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Ilja Rodstein
- Faculty of Chemistry and BiochemistryChair of Inorganic ChemistryRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
| | - Viktoria H. Gessner
- Faculty of Chemistry and BiochemistryChair of Inorganic ChemistryRuhr-Universität BochumUniversitätsstraße 15044801BochumGermany
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9
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Scherpf T, Steinert H, Großjohann A, Dilchert K, Tappen J, Rodstein I, Gessner VH. Efficient Pd‐Catalyzed Direct Coupling of Aryl Chlorides with Alkyllithium Reagents. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008866] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Thorsten Scherpf
- Faculty of Chemistry and Biochemistry Chair of Inorganic Chemistry Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Henning Steinert
- Faculty of Chemistry and Biochemistry Chair of Inorganic Chemistry Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Angela Großjohann
- Faculty of Chemistry and Biochemistry Chair of Inorganic Chemistry Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Katharina Dilchert
- Faculty of Chemistry and Biochemistry Chair of Inorganic Chemistry Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Jens Tappen
- Faculty of Chemistry and Biochemistry Chair of Inorganic Chemistry Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Ilja Rodstein
- Faculty of Chemistry and Biochemistry Chair of Inorganic Chemistry Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
| | - Viktoria H. Gessner
- Faculty of Chemistry and Biochemistry Chair of Inorganic Chemistry Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Germany
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10
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Esteves HA, Darbem MP, Pimenta DC, Stefani HA. Carbonylative Negishi-Type Coupling of 2-Iodoglycals with Alkyl and Aryl Halides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901081] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Henrique A. Esteves
- Departmento de Farmácia; Faculdade de Ciências Farmacêuticas; Universidade de São Paulo; Av. Prof. Lineu Prestes, 580 05508-000 São Paulo Brazil
| | - Mariana P. Darbem
- Departmento de Farmácia; Faculdade de Ciências Farmacêuticas; Universidade de São Paulo; Av. Prof. Lineu Prestes, 580 05508-000 São Paulo Brazil
| | - Daniel C. Pimenta
- Faculdade de Ciências Farmacêuticas; Instituto Butantan; Av. Vital Brasil 1500 05503-000 São Paulo Brazil
| | - Hélio A. Stefani
- Departmento de Farmácia; Faculdade de Ciências Farmacêuticas; Universidade de São Paulo; Av. Prof. Lineu Prestes, 580 05508-000 São Paulo Brazil
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11
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Lin W, Zhang KF, Baudoin O. Regiodivergent enantioselective C-H functionalization of Boc-1,3-oxazinanes and application to the synthesis of β 2 and β 3-amino acids. Nat Catal 2019; 2:882-888. [PMID: 31620675 PMCID: PMC6795538 DOI: 10.1038/s41929-019-0336-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
β2- and β3-Amino acids are important
chiral building blocks for the design of new pharmaceuticals and
peptidomimetics. Here we report a straightforward regio- and enantiodivergent
access to these compounds using a one-pot reaction composed of
sparteine-mediated enantioselective lithiation of a Boc-1,3-oxazinane,
transmetallation to zinc and direct or migratory Negishi coupling with an
organic electrophile. The regioselectivity of the Negishi coupling was highly
ligand-controlled and switchable to obtain the C4- or the C5-functionalized
product exclusively. High enantioselectivities were achieved on a broad range of
examples, and a catalytic version in chiral diamine was developed using the
(+)-sparteine surrogate. Selected C4- and C5-functionalized Boc-1,3-oxazinanes
were subsequently converted to highly enantio-enriched β2- and
β3-amino acids with the (R) or
(S) configuration, depending on the sparteine enantiomer
employed in the lithiation step.
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Affiliation(s)
- Weilong Lin
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Ke-Feng Zhang
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Olivier Baudoin
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
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12
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Chen W, Huang Z, Tay NES, Giglio B, Wang M, Wang H, Wu Z, Nicewicz DA, Li Z. Direct arene C-H fluorination with 18F - via organic photoredox catalysis. Science 2019; 364:1170-1174. [PMID: 31221856 PMCID: PMC6680023 DOI: 10.1126/science.aav7019] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 02/06/2019] [Accepted: 05/29/2019] [Indexed: 12/31/2022]
Abstract
Positron emission tomography (PET) plays key roles in drug discovery and development, as well as medical imaging. However, there is a dearth of efficient and simple radiolabeling methods for aromatic C-H bonds, which limits advancements in PET radiotracer development. Here, we disclose a mild method for the fluorine-18 (18F)-fluorination of aromatic C-H bonds by an [18F]F- salt via organic photoredox catalysis under blue light illumination. This strategy was applied to the synthesis of a wide range of 18F-labeled arenes and heteroaromatics, including pharmaceutical compounds. These products can serve as diagnostic agents or provide key information about the in vivo fate of the labeled substrates, as showcased in preliminary tracer studies in mice.
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Affiliation(s)
- Wei Chen
- Biomedical Research Imaging Center, Department of Radiology, and UNC Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill, NC 27514, USA
| | - Zeng Huang
- Biomedical Research Imaging Center, Department of Radiology, and UNC Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill, NC 27514, USA
| | - Nicholas E S Tay
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599, USA
| | - Benjamin Giglio
- Biomedical Research Imaging Center, Department of Radiology, and UNC Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill, NC 27514, USA
| | - Mengzhe Wang
- Biomedical Research Imaging Center, Department of Radiology, and UNC Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill, NC 27514, USA
| | - Hui Wang
- Biomedical Research Imaging Center, Department of Radiology, and UNC Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill, NC 27514, USA
| | - Zhanhong Wu
- Biomedical Research Imaging Center, Department of Radiology, and UNC Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill, NC 27514, USA
| | - David A Nicewicz
- Department of Chemistry, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599, USA.
| | - Zibo Li
- Biomedical Research Imaging Center, Department of Radiology, and UNC Lineberger Comprehensive Cancer Center, University of North Carolina-Chapel Hill, Chapel Hill, NC 27514, USA.
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13
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14
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Swyka RA, Shuler WG, Spinello BJ, Zhang W, Lan C, Krische MJ. Conversion of Aldehydes to Branched or Linear Ketones via Regiodivergent Rhodium-Catalyzed Vinyl Bromide Reductive Coupling-Redox Isomerization Mediated by Formate. J Am Chem Soc 2019; 141:6864-6868. [PMID: 30998328 DOI: 10.1021/jacs.9b03113] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A regiodivergent catalytic method for direct conversion of aldehydes to branched or linear alkyl ketones is described. Rhodium complexes modified by P tBu2Me catalyze formate-mediated aldehyde-vinyl bromide reductive coupling-redox isomerization to form branched ketones. Use of the less strongly coordinating ligand, PPh3, promotes vinyl- to allylrhodium isomerization en route to linear ketones. This method bypasses the 3-step sequence often used to convert aldehydes to ketones involving the addition of pre-metalated reagents to Weinreb or morpholine amides.
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Affiliation(s)
- Robert A Swyka
- Department of Chemistry , University of Texas at Austin , Austin , Texas 78712 , United States
| | - William G Shuler
- Department of Chemistry , University of Texas at Austin , Austin , Texas 78712 , United States
| | - Brian J Spinello
- Department of Chemistry , University of Texas at Austin , Austin , Texas 78712 , United States
| | - Wandi Zhang
- Department of Chemistry , University of Texas at Austin , Austin , Texas 78712 , United States
| | - Chunling Lan
- Department of Chemistry , University of Texas at Austin , Austin , Texas 78712 , United States
| | - Michael J Krische
- Department of Chemistry , University of Texas at Austin , Austin , Texas 78712 , United States
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15
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Ma Y, Cammarata J, Cornella J. Ni-Catalyzed Reductive Liebeskind-Srogl Alkylation of Heterocycles. J Am Chem Soc 2019; 141:1918-1922. [PMID: 30650305 PMCID: PMC6728094 DOI: 10.1021/jacs.8b13534] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Indexed: 12/22/2022]
Abstract
Herein we present a Ni-catalyzed alkylation of C-SMe with alkyl bromides for the decoration of heterocyclic frameworks. The protocol, reminiscent to the Liebeskind-Srogl coupling, makes use of simple C(sp2)-SMe to be engaged in a reductive coupling. The reaction is suitable for a preponderance of highly valuable heterocyclic motifs. In addition to cyclic bromides, noncyclic alkyl bromides are well accommodated with exquisite levels of retention over isomerization. The protocol is scalable and permits orthogonal couplings in the presence of other functionalization handles.
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Affiliation(s)
- Yuanhong Ma
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr, 45470, Germany
| | - Jose Cammarata
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr, 45470, Germany
| | - Josep Cornella
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr, 45470, Germany
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16
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Tissot M, Body N, Petit S, Claessens J, Genicot C, Pasau P. Synthesis of Electron-Deficient Heteroaromatic 1,3-Substituted Cyclobutyls via Zinc Insertion/Negishi Coupling Sequence under Batch and Automated Flow Conditions. Org Lett 2018; 20:8022-8025. [DOI: 10.1021/acs.orglett.8b03588] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthieu Tissot
- Global Chemistry, UCB New Medicines, UCB Biopharma SPRL, Avenue de l’industrie, 1420 Braine l’Alleud, Belgium
| | - Nathalie Body
- Department Chimie Organique, Université catholique de Louvain-la-Neuve, Place Louis Pasteur, 1, 1348 Louvain-la-Neuve, Belgium
| | - Sylvain Petit
- Chemical Process Research and Development, UCB Biopharma SPRL, Avenue de l’industrie, 1420 Braine l’Alleud, Belgium
| | - Jehan Claessens
- Global Chemistry, UCB New Medicines, UCB Biopharma SPRL, Avenue de l’industrie, 1420 Braine l’Alleud, Belgium
| | - Christophe Genicot
- Global Chemistry, UCB New Medicines, UCB Biopharma SPRL, Avenue de l’industrie, 1420 Braine l’Alleud, Belgium
| | - Patrick Pasau
- Global Chemistry, UCB New Medicines, UCB Biopharma SPRL, Avenue de l’industrie, 1420 Braine l’Alleud, Belgium
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17
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Cherney AH, Hedley SJ, Mennen SM, Tedrow JS. Xantphos as a Branch-Selective Ligand for the Acyclic sec-Alkyl Negishi Cross-Coupling of Heteroaryl Halides. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00590] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Alan H. Cherney
- Drug Substance Technologies, Amgen, Inc., 360 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Simon J. Hedley
- Drug Substance Technologies, Amgen, Inc., 360 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Steven M. Mennen
- Drug Substance Technologies, Amgen, Inc., 360 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Jason S. Tedrow
- Drug Substance Technologies, Amgen, Inc., 360 Binney Street, Cambridge, Massachusetts 02142, United States
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18
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Peng J, Chen B, Qi X, Ying J, Wu X. Palladium‐Catalyzed Carbonylative Coupling of Aryl Iodides with Alkyl Bromides: Efficient Synthesis of Alkyl Aryl Ketones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800879] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jin‐Bao Peng
- Department of ChemistryZhejiang Sci-Tech University, Xiasha Campus Hangzhou 310018 People's Republic of China
| | - Bo Chen
- Department of ChemistryZhejiang Sci-Tech University, Xiasha Campus Hangzhou 310018 People's Republic of China
| | - Xinxin Qi
- Department of ChemistryZhejiang Sci-Tech University, Xiasha Campus Hangzhou 310018 People's Republic of China
| | - Jun Ying
- Department of ChemistryZhejiang Sci-Tech University, Xiasha Campus Hangzhou 310018 People's Republic of China
| | - Xiao‐Feng Wu
- Department of ChemistryZhejiang Sci-Tech University, Xiasha Campus Hangzhou 310018 People's Republic of China
- Leibniz-Institut für Katalyse e.V.Universität Rostock Albert-Einstein-Straße 29a 18059 Rostock Germany
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19
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Cao Q, Howard JL, Wheatley E, Browne DL. Mechanochemical Activation of Zinc and Application to Negishi Cross-Coupling. Angew Chem Int Ed Engl 2018; 57:11339-11343. [PMID: 30015403 PMCID: PMC6220771 DOI: 10.1002/anie.201806480] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Indexed: 11/26/2022]
Abstract
A form independent activation of zinc, concomitant generation of organozinc species and engagement in a Negishi cross-coupling reaction via mechanochemical methods is reported. The reported method exhibits a broad substrate scope for both C(sp3 )-C(sp2 ) and C(sp2 )-C(sp2 ) couplings and is tolerant to many important functional groups. The method may offer broad reaching opportunities for the in situ generation organometallic compounds from base metals and their concomitant engagement in synthetic reactions via mechanochemical methods.
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Affiliation(s)
- Qun Cao
- School of ChemistryCardiff UniversityMain Building, Park PlaceCardiffCF10 3EQUK
| | - Joseph L. Howard
- School of ChemistryCardiff UniversityMain Building, Park PlaceCardiffCF10 3EQUK
| | - Emilie Wheatley
- School of ChemistryCardiff UniversityMain Building, Park PlaceCardiffCF10 3EQUK
| | - Duncan L. Browne
- School of ChemistryCardiff UniversityMain Building, Park PlaceCardiffCF10 3EQUK
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20
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Yoshida H, Kamio S, Osaka I. Copper-catalyzed Borylation of Bromoaryl Triflates with Diborons: Chemoselective Replacement of an Ar–Br Bond. CHEM LETT 2018. [DOI: 10.1246/cl.180385] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Hiroto Yoshida
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Shintaro Kamio
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8527, Japan
| | - Itaru Osaka
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8527, Japan
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21
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Cao Q, Howard JL, Wheatley E, Browne DL. Mechanochemical Activation of Zinc and Application to Negishi Cross-Coupling. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806480] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Qun Cao
- School of Chemistry; Cardiff University; Main Building, Park Place Cardiff CF10 3EQ UK
| | - Joseph L. Howard
- School of Chemistry; Cardiff University; Main Building, Park Place Cardiff CF10 3EQ UK
| | - Emilie Wheatley
- School of Chemistry; Cardiff University; Main Building, Park Place Cardiff CF10 3EQ UK
| | - Duncan L. Browne
- School of Chemistry; Cardiff University; Main Building, Park Place Cardiff CF10 3EQ UK
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