1
|
Zhang M, Lee PS, Allais C, Singer RA, Morken JP. Desymmetrization of Vicinal Bis(boronic) Esters by Enantioselective Suzuki-Miyaura Cross-Coupling Reaction. J Am Chem Soc 2023:10.1021/jacs.3c01571. [PMID: 37023255 PMCID: PMC10556193 DOI: 10.1021/jacs.3c01571] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
Abstract
The development of an enantioselective catalytic Suzuki-Miyaura reaction that applies to meso 1,2-diborylcycloalkanes is described. This reaction provides a modular route to enantiomerically enriched substituted carbocycles and heterocycles that retain a synthetically versatile boronic ester. With appropriately constructed substrates, compounds bearing additional stereogenic centers and fully substituted carbon atoms can be generated in a straightforward fashion. Preliminary mechanistic experiments suggest that substrate activation arises from the cooperative effect of vicinal boronic esters during the transmetalation step.
Collapse
Affiliation(s)
- Mingkai Zhang
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Paul S. Lee
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Christophe Allais
- Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Robert A. Singer
- Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - James P. Morken
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| |
Collapse
|
2
|
Ohmura T. Development of Catalytic Reactions that Enable Efficient Conversions of sp<sup>3</sup> Carbon-Hydrogen and Carbon-Boron Bonds. J SYN ORG CHEM JPN 2022. [DOI: 10.5059/yukigoseikyokaishi.80.1113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Toshimichi Ohmura
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology
| |
Collapse
|
3
|
Sivendran N, Pirkl N, Hu Z, Doppiu A, Gooßen LJ. Halogen-Bridged Methylnaphthyl Palladium Dimers as Versatile Catalyst Precursors in Coupling Reactions. Angew Chem Int Ed Engl 2021; 60:25151-25160. [PMID: 34520603 PMCID: PMC9293455 DOI: 10.1002/anie.202110450] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Indexed: 11/16/2022]
Abstract
Halogen‐bridged methylnaphthyl (MeNAP) palladium dimers are presented as multipurpose Pd‐precursors, ideally suited for catalytic method development and preparative organic synthesis. By simply mixing with phosphine or carbene ligands, they are in situ converted into well‐defined monoligated complexes. Their catalytic performance was benchmarked against state‐of‐the‐art systems in challenging Buchwald–Hartwig, Heck, Suzuki and Negishi couplings, and ketone arylations. Their use enabled record‐setting activities, beyond those achievable by optimization of the ligand alone. The MeNAP catalysts permit syntheses of tetra‐ortho‐substituted arenes and bulky anilines in near‐quantitative yields at room temperature, allow mono‐arylations of small ketones, and enable so far elusive cross‐couplings of secondary alkyl boronic acids with aryl chlorides.
Collapse
Affiliation(s)
- Nardana Sivendran
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801, Bochum, Germany
| | - Nico Pirkl
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801, Bochum, Germany
| | - Zhiyong Hu
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801, Bochum, Germany
| | - Angelino Doppiu
- Umicore Precious Metals Chemistry, Rodenbacher Chaussee 4, 63457, Hanau, Germany
| | - Lukas J Gooßen
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801, Bochum, Germany
| |
Collapse
|
4
|
Sivendran N, Pirkl N, Hu Z, Doppiu A, Gooßen LJ. Halogen‐verbrückte Methylnaphthylpalladium‐Dimere als vielseitig einsetzbare Katalysatorvorstufen in Kreuzkupplungen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202110450] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Nardana Sivendran
- Evonik Chair of Organic Chemistry Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Nico Pirkl
- Evonik Chair of Organic Chemistry Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Zhiyong Hu
- Evonik Chair of Organic Chemistry Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Angelino Doppiu
- Umicore Precious Metals Chemistry Rodenbacher Chaussee 4 63457 Hanau Deutschland
| | - Lukas J. Gooßen
- Evonik Chair of Organic Chemistry Ruhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| |
Collapse
|
5
|
Dombrowski AW, Aguirre AL, Shrestha A, Sarris KA, Wang Y. The Chosen Few: Parallel Library Reaction Methodologies for Drug Discovery. J Org Chem 2021; 87:1880-1897. [PMID: 34780177 DOI: 10.1021/acs.joc.1c01427] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Parallel library synthesis is an important tool for drug discovery because it enables the synthesis of closely related analogues in parallel via robust and general synthetic transformations. In this perspective, we analyzed the synthetic methodologies used in >5000 parallel libraries representing 15 prevalent synthetic transformations. The library data set contains complex substrates and diverse arrays of building blocks used over the last 14 years at AbbVie. The library synthetic methodologies that have demonstrated robustness and generality with proven success are described along with their substrate scopes. The evolution of the synthetic methodologies for library synthesis over the past decade is discussed. We also highlight that the combination of parallel library synthesis with high-throughput experimentation will continue to facilitate the discovery of library-amenable synthetic methodologies in drug discovery.
Collapse
Affiliation(s)
- Amanda W Dombrowski
- Advanced Chemistry Technologies Group, AbbVie, Inc., North Chicago, Illinois 60064, United States
| | - Ana L Aguirre
- Advanced Chemistry Technologies Group, AbbVie, Inc., North Chicago, Illinois 60064, United States
| | - Anurupa Shrestha
- Advanced Chemistry Technologies Group, AbbVie, Inc., North Chicago, Illinois 60064, United States
| | - Kathy A Sarris
- Advanced Chemistry Technologies Group, AbbVie, Inc., North Chicago, Illinois 60064, United States
| | - Ying Wang
- Advanced Chemistry Technologies Group, AbbVie, Inc., North Chicago, Illinois 60064, United States
| |
Collapse
|
6
|
O'Neill MJ, Riesebeck T, Cornella J. Thorpe-Ingold Effect in Branch-Selective Alkylation of Unactivated Aryl Fluorides. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804479] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Matthew J. O'Neill
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| | - Tim Riesebeck
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| | - Josep Cornella
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| |
Collapse
|
7
|
O'Neill MJ, Riesebeck T, Cornella J. Thorpe-Ingold Effect in Branch-Selective Alkylation of Unactivated Aryl Fluorides. Angew Chem Int Ed Engl 2018; 57:9103-9107. [DOI: 10.1002/anie.201804479] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/22/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Matthew J. O'Neill
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| | - Tim Riesebeck
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| | - Josep Cornella
- Max-Planck-Institut für Kohlenforschung; Kaiser-Wilhelm-Platz 1 45470 Mülheim an der Ruhr Germany
| |
Collapse
|
8
|
Zhang XM, Yang J, Zhuang QB, Tu YQ, Chen Z, Shao H, Wang SH, Zhang FM. Allylic Arylation of 1,3-Dienes via Hydroboration/Migrative Suzuki–Miyaura Cross-Coupling Reactions. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01823] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xiao-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jie Yang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Qing-Bo Zhuang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yong-Qiang Tu
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Zongyuan Chen
- Radiochemistry Laboratory, School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, P. R. China
| | - Hui Shao
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Shao-Hua Wang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
- School of Pharmacy, Lanzhou University, Lanzhou 730000, P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| |
Collapse
|
9
|
Han S, Ren X, Wu Q, Liang A, Li J, Zou D, Wu Y, Wu Y. Palladium-Catalyzed Decarboxylative Cross-Couplings of 1-Boc-3-iodoazetidine: Regioselective Access to 2-Alkynylazetidines, 3-Alkynylazetidines and 3-Vinylazetidines. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800100] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shuaijun Han
- The College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou People's Republic of China
| | - Xiaoxiao Ren
- The College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou People's Republic of China
| | - Qingsong Wu
- The College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou People's Republic of China
| | - Apeng Liang
- The College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou People's Republic of China
| | - Jingya Li
- Tetranov Biopharm, LLC.; Collaborative Innovation Center of New Drug Research and Safety Evaluation; Zhengzhou 450052 People's Republic of China
| | - Dapeng Zou
- The College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou People's Republic of China
| | - Yangjie Wu
- The College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou People's Republic of China
| | - Yusheng Wu
- The College of Chemistry and Molecular Engineering; Zhengzhou University; Zhengzhou People's Republic of China
- Tetranov Biopharm, LLC.; Collaborative Innovation Center of New Drug Research and Safety Evaluation; Zhengzhou 450052 People's Republic of China
- Tetranov International, Inc.; 100 Jersey Avenue, Suite A340 New Brunswick NJ 08901 USA
| |
Collapse
|
10
|
Rygus JPG, Crudden CM. Enantiospecific and Iterative Suzuki–Miyaura Cross-Couplings. J Am Chem Soc 2017; 139:18124-18137. [DOI: 10.1021/jacs.7b08326] [Citation(s) in RCA: 125] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jason P. G. Rygus
- Department
of Chemistry, Queen’s University, Chernoff Hall, Kingston, Ontario K7L
3N6, Canada
| | - Cathleen M. Crudden
- Department
of Chemistry, Queen’s University, Chernoff Hall, Kingston, Ontario K7L
3N6, Canada
- Institute
of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya 464-8601, Japan
| |
Collapse
|
11
|
Flaherty DP, Harris MT, Schroeder CE, Khan H, Kahney EW, Hackler AL, Patrick SL, Weiner WS, Aubé J, Sharlow ER, Morris JC, Golden JE. Optimization and Evaluation of Antiparasitic Benzamidobenzoic Acids as Inhibitors of Kinetoplastid Hexokinase 1. ChemMedChem 2017; 12:1994-2005. [PMID: 29105342 PMCID: PMC5808564 DOI: 10.1002/cmdc.201700592] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2017] [Revised: 10/26/2017] [Indexed: 11/05/2022]
Abstract
Kinetoplastid-based infections are neglected diseases that represent a significant human health issue. Chemotherapeutic options are limited due to toxicity, parasite susceptibility, and poor patient compliance. In response, we studied a molecular-target-directed approach involving intervention of hexokinase activity-a pivotal enzyme in parasite metabolism. A benzamidobenzoic acid hit with modest biochemical inhibition of Trypanosoma brucei hexokinase 1 (TbHK1, IC50 =9.1 μm), low mammalian cytotoxicity (IMR90 cells, EC50 >25 μm), and no appreciable activity on whole bloodstream-form (BSF) parasites was optimized to afford a probe with improved TbHK1 potency and, significantly, efficacy against whole BSF parasites (TbHK1, IC50 =0.28 μm; BSF, ED50 =1.9 μm). Compounds in this series also inhibited the hexokinase enzyme from Leishmania major (LmHK1), albeit with less potency than toward TbHK1, suggesting that inhibition of the glycolytic pathway may be a promising opportunity to target multiple disease-causing trypanosomatid protozoa.
Collapse
Affiliation(s)
- Daniel P Flaherty
- University of Kansas Specialized Chemistry Center, University of Kansas, Lawrence, KS, 66049, USA
- Present Address: Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, 575 West Stadium Avenue, West Lafayette, IN, 47907, USA
| | - Michael T Harris
- Eukaryotic Pathogens Innovation Center, Department of Genetics and Biochemistry, Clemson University, Clemson, SC, 29634, USA
- Present Address: Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Chad E Schroeder
- University of Kansas Specialized Chemistry Center, University of Kansas, Lawrence, KS, 66049, USA
| | - Haaris Khan
- Eukaryotic Pathogens Innovation Center, Department of Genetics and Biochemistry, Clemson University, Clemson, SC, 29634, USA
| | - Elizabeth W Kahney
- Eukaryotic Pathogens Innovation Center, Department of Genetics and Biochemistry, Clemson University, Clemson, SC, 29634, USA
- Present Address: Department of Biology, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Amber L Hackler
- Eukaryotic Pathogens Innovation Center, Department of Genetics and Biochemistry, Clemson University, Clemson, SC, 29634, USA
| | - Stephen L Patrick
- Eukaryotic Pathogens Innovation Center, Department of Genetics and Biochemistry, Clemson University, Clemson, SC, 29634, USA
| | - Warren S Weiner
- University of Kansas Specialized Chemistry Center, University of Kansas, Lawrence, KS, 66049, USA
| | - Jeffrey Aubé
- University of Kansas Specialized Chemistry Center, University of Kansas, Lawrence, KS, 66049, USA
- Present Address: School of Pharmacy, University of North Carolina, 3012 Marsico Hall, 125 Mason Farm Road, Chapel Hill, NC, 27599, USA
| | - Elizabeth R Sharlow
- Department of Pharmacology, University of Virginia, Charlottesville, VA, 22908, USA
| | - James C Morris
- Eukaryotic Pathogens Innovation Center, Department of Genetics and Biochemistry, Clemson University, Clemson, SC, 29634, USA
| | - Jennifer E Golden
- University of Kansas Specialized Chemistry Center, University of Kansas, Lawrence, KS, 66049, USA
- Present Address: School of Pharmacy, Department of Pharmaceutical Sciences, University of Wisconsin-Madison, 777 Highland Avenue, Madison, WI, 53705, USA
| |
Collapse
|
12
|
Sarkar U, Hillebrand R, Johnson KM, Cummings AH, Phung NL, Rajapakse A, Zhou H, Willis JR, Barnes CL, Gates KS. Application of Suzuki-Miyaura and Buchwald-Hartwig Cross-coupling Reactions to the Preparation of Substituted 1,2,4-Benzotriazine 1-Oxides Related to the Antitumor Agent Tirapazamine. J Heterocycl Chem 2017; 54:155-160. [PMID: 28439141 DOI: 10.1002/jhet.2559] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Many 1,2,4-benzotriazine 1,4-dioxides display the ability to selectively kill the oxygen-poor cells found in solid tumors. As a result, there is a desire for synthetic routes that afford access to substituted 1,2,4-benzotriazine 1-oxides that can be used as direct precursors in the synthesis of 1,2,4-benzotriazine 1,4-dioxides. Here we describe the use of Suzuki-Miyaura and Buchwald-Hartwig cross-coupling reactions for the construction of various 1,2,4-benzotriazine 1-oxide analogs bearing substituents at the 3-, 6-, and 7-positions.
Collapse
Affiliation(s)
- Ujjal Sarkar
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211
| | - Roman Hillebrand
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211
| | - Kevin M Johnson
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211
| | - Andrea H Cummings
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211
| | - Ngoc Linh Phung
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211
| | - Anuruddha Rajapakse
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211
| | - Haiying Zhou
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211
| | - Jordan R Willis
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211
| | - Charles L Barnes
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211
| | - Kent S Gates
- University of Missouri, Department of Chemistry, 125 Chemistry Building, Columbia, MO 65211.,University of Missouri, Department of Biochemistry, 125 Chemistry Building, Columbia, MO 65211
| |
Collapse
|
13
|
Si T, Li B, Xiong W, Xu B, Tang W. Efficient cross-coupling of aryl/alkenyl triflates with acyclic secondary alkylboronic acids. Org Biomol Chem 2017; 15:9903-9909. [DOI: 10.1039/c7ob02531a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient cross-coupling between aryl/alkenyl triflates and acyclic secondary alkylboronic acids is realized by employing P,PO ligand L1/L2, providing a series of sterically congested acyclic secondary alkyl arenes/olefins in good to excellent yields. The method has enabled a concise and 4-step synthesis of a gossypol intermediate.
Collapse
Affiliation(s)
- Tengda Si
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Bowen Li
- State Key Laboratory of Bio-Organic and Natural Products Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Wenrui Xiong
- State Key Laboratory of Bio-Organic and Natural Products Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Bin Xu
- Department of Chemistry
- Shanghai University
- Shanghai 200444
- China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| |
Collapse
|
14
|
Tellis JC, Kelly C, Primer DN, Jouffroy M, Patel NR, Molander GA. Single-Electron Transmetalation via Photoredox/Nickel Dual Catalysis: Unlocking a New Paradigm for sp(3)-sp(2) Cross-Coupling. Acc Chem Res 2016; 49:1429-39. [PMID: 27379472 PMCID: PMC4955519 DOI: 10.1021/acs.accounts.6b00214] [Citation(s) in RCA: 509] [Impact Index Per Article: 63.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Indexed: 12/19/2022]
Abstract
The important role of transition metal-catalyzed cross-coupling in expanding the frontiers of accessible chemical territory is unquestionable. Despite empowering chemists with Herculean capabilities in complex molecule construction, contemporary protocols are not without their Achilles' heel: Csp(3)-Csp(2)/sp(3) coupling. The underlying challenge in sp(3) cross-couplings is 2-fold: (i) methods employing conventional, bench-stable precursors are universally reliant on extreme reaction conditions because of the high activation barrier of transmetalation; (ii) circumvention of this barrier invariably relies on use of more reactive precursors, thereby sacrificing functional group tolerance, operational simplicity, and broad applicability. Despite the ubiquity of this problem, the nature of the transmetalation step has remained unchanged from the seminal reports of Negishi, Suzuki, Kumada, and Stille, thus suggesting that the challenges in Csp(3)-Csp(2)/sp(3) coupling result from inherent mechanistic constraints in the traditional cross-coupling paradigm. Rather than submitting to the limitations of this conventional approach, we envisioned that a process rooted in single-electron reactivity could furnish the same key metalated intermediate posited in two-electron transmetalation, while demonstrating entirely complementary reactivity patterns. Inspired by literature reports on the susceptibility of organoboron reagents toward photochemical, single-electron oxidative fragmentation, realization of a conceptually novel open shell transmetalation framework was achieved in the facile coupling of benzylic trifluoroborates with aryl halides via cooperative visible-light activated photoredox and Ni cross-coupling catalysis. Following this seminal study, we disclosed a suite of protocols for the cross-coupling of secondary alkyl, α-alkoxy, α-amino, and α-trifluoromethylbenzyltrifluoroborates. Furthermore, the selective cross-coupling of Csp(3) organoboron moieties in the presence of Csp(2) organoboron motifs was also demonstrated, highlighting the nuances of this approach to transmetalation. Computational modeling of the reaction mechanism uncovered useful details about the intermediates and transition-state structures involved in the nickel catalytic cycle. Most notably, a unique dynamic kinetic resolution process, characterized by radical homolysis/recombination equilibrium of a Ni(III) intermediate, was discovered. This process was ultimately found to be responsible for stereoselectivity in an enantioselective variant of these cross-couplings. Prompted by the intrinsic limitations of organotrifluoroborates, we sought other radical feedstocks and quickly identified alkylbis(catecholato)silicates as viable radical precursors for Ni/photoredox dual catalysis. These hypervalent silicate species have several notable benefits, including more favorable redox potentials that allow extension to primary alkyl systems incorporating unprotected amines as well as compatibility with less expensive Ru-based photocatalysts. Additionally, these reagents exhibit an amenability to alkenyl halide cross-coupling while simultaneously expanding the aryl halide scope. In the process of exploring these reagents, we serendipitously discovered a method to effect thioetherification of aryl halides via a H atom transfer mechanism. This latter discovery emphasizes that this robust cross-coupling paradigm is "blind" to the origins of the radical, opening opportunities for a wealth of new discoveries. Taken together, our studies in the area of photoredox/nickel dual catalysis have validated single-electron transmetalation as a powerful platform for enabling conventionally challenging Csp(3)-Csp(2) cross-couplings. More broadly, these findings represent the power of rational design in catalysis and the strategic use of mechanistic knowledge and manipulation for the development of new synthetic methods.
Collapse
Affiliation(s)
| | | | - David N. Primer
- Roy and Diana Vagelos Laboratories,
Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Matthieu Jouffroy
- Roy and Diana Vagelos Laboratories,
Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Niki R. Patel
- Roy and Diana Vagelos Laboratories,
Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Gary A. Molander
- Roy and Diana Vagelos Laboratories,
Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| |
Collapse
|
15
|
Tellis JC, Amani J, Molander GA. Single-Electron Transmetalation: Photoredox/Nickel Dual Catalytic Cross-Coupling of Secondary Alkyl β-Trifluoroboratoketones and -esters with Aryl Bromides. Org Lett 2016; 18:2994-7. [PMID: 27265019 DOI: 10.1021/acs.orglett.6b01357] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first cross-coupling of secondary alkyl β-trifluoroboratoketones and -esters has been achieved through application of photoredox/nickel dual catalysis. Although the related β-trifluoroboratoamides have been effectively cross-coupled via Pd-catalysis, the corresponding ketones and esters had proven recalcitrant prior to this report. Reactions occur under mild conditions, and a variety of functional groups and sterically and electronically diverse reaction partners are tolerated.
Collapse
Affiliation(s)
- John C Tellis
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Javad Amani
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| | - Gary A Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania , 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| |
Collapse
|
16
|
Atack TC, Cook SP. Manganese-Catalyzed Borylation of Unactivated Alkyl Chlorides. J Am Chem Soc 2016; 138:6139-42. [DOI: 10.1021/jacs.6b03157] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Thomas C. Atack
- Department
of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405-7102, United States
| | - Silas P. Cook
- Department
of Chemistry, Indiana University, 800 East Kirkwood Avenue, Bloomington, Indiana 47405-7102, United States
| |
Collapse
|
17
|
Cherney AH, Kadunce NT, Reisman SE. Enantioselective and Enantiospecific Transition-Metal-Catalyzed Cross-Coupling Reactions of Organometallic Reagents To Construct C-C Bonds. Chem Rev 2015; 115:9587-652. [PMID: 26268813 PMCID: PMC4566132 DOI: 10.1021/acs.chemrev.5b00162] [Citation(s) in RCA: 615] [Impact Index Per Article: 68.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Alan H Cherney
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Nathaniel T Kadunce
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| | - Sarah E Reisman
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology , Pasadena, California 91125, United States
| |
Collapse
|
18
|
Blaisdell TP, Morken JP. Hydroxyl-Directed Cross-Coupling: A Scalable Synthesis of Debromohamigeran E and Other Targets of Interest. J Am Chem Soc 2015; 137:8712-5. [PMID: 26125083 DOI: 10.1021/jacs.5b05477] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A hydroxyl functional group positioned β to a pinacol boronate can serve to direct palladium-catalyzed cross-coupling reactions. This feature can be used to control the reaction site in multiply borylated substrates and can activate boronates for reaction that would otherwise be unreactive.
Collapse
Affiliation(s)
- Thomas P Blaisdell
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - James P Morken
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| |
Collapse
|
19
|
Primer DN, Karakaya I, Tellis JC, Molander GA. Single-electron transmetalation: an enabling technology for secondary alkylboron cross-coupling. J Am Chem Soc 2015; 137:2195-8. [PMID: 25650892 PMCID: PMC4466116 DOI: 10.1021/ja512946e] [Citation(s) in RCA: 250] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Single-electron-mediated alkyl transfer affords a novel mechanism for transmetalation, enabling cross-coupling under mild conditions. Here, general conditions are reported for cross-coupling of secondary alkyltrifluoroborates with an array of aryl bromides mediated by an Ir photoredox catalyst and a Ni cross-coupling catalyst.
Collapse
Affiliation(s)
- David N. Primer
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Idris Karakaya
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
- Department of Chemistry, Faculty of Sciences and Letters, Osmaniye Korkut Ata University, 80000 Osmaniye, Turkey
| | - John C. Tellis
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Gary A. Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| |
Collapse
|
20
|
Li C, Chen T, Li B, Xiao G, Tang W. Efficient Synthesis of Sterically Hindered Arenes Bearing Acyclic Secondary Alkyl Groups by Suzuki-Miyaura Cross-Couplings. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411518] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
21
|
Li C, Chen T, Li B, Xiao G, Tang W. Efficient Synthesis of Sterically Hindered Arenes Bearing Acyclic Secondary Alkyl Groups by Suzuki-Miyaura Cross-Couplings. Angew Chem Int Ed Engl 2015; 54:3792-6. [DOI: 10.1002/anie.201411518] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Indexed: 11/07/2022]
|
22
|
Leonori D, Aggarwal VK. Stereospezifische Kupplungen von sekundären und tertiären Boronsäureestern. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407701] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
23
|
Leonori D, Aggarwal VK. Stereospecific couplings of secondary and tertiary boronic esters. Angew Chem Int Ed Engl 2014; 54:1082-96. [PMID: 25414056 DOI: 10.1002/anie.201407701] [Citation(s) in RCA: 247] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Indexed: 12/15/2022]
Abstract
This Minireview highlights advances in the Suzuki-Miyaura cross-coupling of secondary boron reagents for the creation of C-C bonds with control of stereochemistry. It also includes non-transition-metal coupling of secondary and tertiary boronic esters to electron-rich aromatics.
Collapse
Affiliation(s)
- Daniele Leonori
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL (UK).
| | | |
Collapse
|
24
|
Li L, Zhao S, Joshi-Pangu A, Diane M, Biscoe MR. Stereospecific pd-catalyzed cross-coupling reactions of secondary alkylboron nucleophiles and aryl chlorides. J Am Chem Soc 2014; 136:14027-30. [PMID: 25226092 PMCID: PMC4195375 DOI: 10.1021/ja508815w] [Citation(s) in RCA: 192] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
![]()
We
report the development of a Pd-catalyzed process for the stereospecific
cross-coupling of unactivated secondary alkylboron nucleophiles and
aryl chlorides. This process tolerates the use of secondary alkylboronic
acids and secondary alkyltrifluoroborates and occurs without significant
isomerization of the alkyl nucelophile. Optically active secondary
alkyltrifluoroborate reagents undergo cross-coupling reactions with
stereospecific inversion of configuration using this method.
Collapse
Affiliation(s)
- Ling Li
- Department of Chemistry, The City College of New York (CCNY) , 160 Convent Avenue, New York, New York 10031, United States
| | | | | | | | | |
Collapse
|
25
|
Yang Y, Niedermann K, Han C, Buchwald SL. Highly selective palladium-catalyzed cross-coupling of secondary alkylzinc reagents with heteroaryl halides. Org Lett 2014; 16:4638-41. [PMID: 25153332 PMCID: PMC4156254 DOI: 10.1021/ol502230p] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The highly selective palladium-catalyzed Negishi coupling of secondary alkylzinc reagents with heteroaryl halides is described. The development of a series of biarylphosphine ligands has led to the identification of an improved catalyst for the coupling of electron-deficient heterocyclic substrates. Preparation and characterization of oxidative addition complex (L)(Ar)PdBr provided insight into the unique reactivity of catalysts based on CPhos-type ligands in facilitating challenging reductive elimination processes.
Collapse
Affiliation(s)
- Yang Yang
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
| | | | | | | |
Collapse
|
26
|
Li C, Xiao G, Zhao Q, Liu H, Wang T, Tang W. Sterically demanding aryl–alkyl Suzuki–Miyaura coupling. Org Chem Front 2014. [DOI: 10.1039/c4qo00024b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient sterically demanding aryl–alkyl Suzuki–Miyaura coupling between di-ortho-substituted aryl halides and secondary alkylboronic acids has been achieved with a Pd-AntPhos catalyst.
Collapse
Affiliation(s)
- Chengxi Li
- State Key Laboratory of Bio-Organic and Natural Products Chemistry
- Shanghai Institute of Organic Chemistry
- Shanghai 200032, P. R. China
| | - Guolan Xiao
- State Key Laboratory of Bio-Organic and Natural Products Chemistry
- Shanghai Institute of Organic Chemistry
- Shanghai 200032, P. R. China
| | - Qing Zhao
- State Key Laboratory of Bio-Organic and Natural Products Chemistry
- Shanghai Institute of Organic Chemistry
- Shanghai 200032, P. R. China
| | - Huimin Liu
- AutoChem Department
- Mettler-Toledo International Trading Co. Ltd
- Shanghai 200233, P. R. China
| | - Tao Wang
- AutoChem Department
- Mettler-Toledo International Trading Co. Ltd
- Shanghai 200233, P. R. China
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry
- Shanghai Institute of Organic Chemistry
- Shanghai 200032, P. R. China
| |
Collapse
|
27
|
Vila C, Giannerini M, Hornillos V, Fañanás-Mastral M, Feringa BL. Palladium-catalysed direct cross-coupling of secondary alkyllithium reagents. Chem Sci 2014. [DOI: 10.1039/c3sc53047g] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
28
|
Thuy-Boun PS, Villa G, Dang D, Richardson P, Su S, Yu JQ. Ligand-accelerated ortho-C-H alkylation of arylcarboxylic acids using alkyl boron reagents. J Am Chem Soc 2013; 135:17508-13. [PMID: 24124892 DOI: 10.1021/ja409014v] [Citation(s) in RCA: 140] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A protocol for the Pd(II)-catalyzed ortho-C-H alkylation of phenylacetic and benzoic acids using alkylboron reagents is disclosed. Monoprotected amino acid ligands (MPAA) were found to significantly promote reactivity. Both potassium alkyltrifluoroborates and alkylboronic acids were compatible coupling partners. The possibility of a radical alkyl transfer to Pd(II) was also investigated.
Collapse
Affiliation(s)
- Peter S Thuy-Boun
- Department of Chemistry, The Scripps Research Institute , 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | | | | | | | | | | |
Collapse
|
29
|
Liu Z, Dong N, Xu M, Sun Z, Tu T. Mild Negishi Cross-Coupling Reactions Catalyzed by Acenaphthoimidazolylidene Palladium Complexes at Low Catalyst Loadings. J Org Chem 2013; 78:7436-44. [DOI: 10.1021/jo400803s] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Zelong Liu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, P. R.
China
| | - Ningning Dong
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, P. R.
China
| | - Mizhi Xu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, P. R.
China
| | - Zheming Sun
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, P. R.
China
| | - Tao Tu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, P. R.
China
| |
Collapse
|
30
|
Swift EC, Jarvo ER. Asymmetric transition metal-catalyzed cross-coupling reactions for the construction of tertiary stereocenters. Tetrahedron 2013; 69:5799-5817. [PMID: 23956470 DOI: 10.1016/j.tet.2013.05.001] [Citation(s) in RCA: 95] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Elizabeth C Swift
- Department of Chemistry, University of California, Irvine, California 92697-2025
| | | |
Collapse
|
31
|
Pompeo M, Froese RDJ, Hadei N, Organ MG. Pd-PEPPSI-IPent(Cl): a highly effective catalyst for the selective cross-coupling of secondary organozinc reagents. Angew Chem Int Ed Engl 2012; 51:11354-7. [PMID: 23038603 DOI: 10.1002/anie.201205747] [Citation(s) in RCA: 145] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 08/29/2012] [Indexed: 11/07/2022]
Abstract
No migration? No problem! A series of new N-heterocyclic carbene based Pd complexes has been created and evaluated in the Negishi cross-coupling of aryl and heteroaryl chlorides, bromides, and triflates with a variety of secondary alkylzinc reagents. The direct elimination product is nearly exclusively formed; in most examples there is no migratory insertion at all.
Collapse
Affiliation(s)
- Matthew Pompeo
- Department of Chemistry, York University, Toronto, ON, Canada
| | | | | | | |
Collapse
|
32
|
Pompeo M, Froese RDJ, Hadei N, Organ MG. Pd-PEPPSI-IPentCl: A Highly Effective Catalyst for the Selective Cross-Coupling of Secondary Organozinc Reagents. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205747] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
33
|
He Z, Zajdlik A, St Denis JD, Assem N, Yudin AK. Boroalkyl group migration provides a versatile entry into α-aminoboronic acid derivatives. J Am Chem Soc 2012; 134:9926-9. [PMID: 22662871 DOI: 10.1021/ja304173d] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
A reaction exemplifying migration of boron-substituted carbon is described. We show that α-boroalkyl groups of transient boroalkyl acyl azide intermediates readily migrate from carbon to nitrogen. This process allows access to a new class of stable molecules, α-boryl isocyanates, from α-borylcarboxylic acid precursors. The methodology facilitates synthesis of a wide range of α-aminoboronic acid derivatives, including α,α-disubstituted analogues.
Collapse
Affiliation(s)
- Zhi He
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | | | | | | | | |
Collapse
|
34
|
Valente C, Calimsiz S, Hoi KH, Mallik D, Sayah M, Organ MG. The development of bulky palladium NHC complexes for the most-challenging cross-coupling reactions. Angew Chem Int Ed Engl 2012; 51:3314-32. [PMID: 22287485 DOI: 10.1002/anie.201106131] [Citation(s) in RCA: 718] [Impact Index Per Article: 59.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Indexed: 11/11/2022]
Abstract
Palladium-catalyzed cross-coupling reactions enable organic chemists to form C-C bonds in targeted positions and under mild conditions. Although phosphine ligands have been intensively researched, in the search for even better cross-coupling catalysts attention has recently turned to the use of N-heterocyclic carbene (NHC) ligands, which form a strong bond to the palladium center. PEPPSI (pyridine-enhanced precatalyst preparation, stabilization, and initiation) palladium precatalysts with bulky NHC ligands have established themselves as successful alternatives to palladium phosphine complexes. This Review shows the success of these species in Suzuki-Miyaura, Negishi, and Stille-Migita cross-couplings as well as in amination and sulfination reactions.
Collapse
Affiliation(s)
- Cory Valente
- Department of Chemistry, York University, Toronto, ON, Canada
| | | | | | | | | | | |
Collapse
|
35
|
Valente C, Çalimsiz S, Hoi KH, Mallik D, Sayah M, Organ MG. Die Entwicklung raumerfüllender Palladium-NHC-Komplexe für anspruchsvollste Kreuzkupplungsreaktionen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201106131] [Citation(s) in RCA: 146] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
36
|
The first examples of rhodium-catalyzed 1,4-conjugate addition reactions of arylboronic acids with ethenesulfonamides. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.08.108] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
37
|
Pudasaini B, Janesko BG. Computational Investigation of Selectivity in Suzuki–Miyaura Coupling of Secondary Alkyl Boranes. Organometallics 2011. [DOI: 10.1021/om200305r] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bimal Pudasaini
- Department of Chemistry, Texas Christian University, Fort Worth, Texas, United States
| | - Benjamin G. Janesko
- Department of Chemistry, Texas Christian University, Fort Worth, Texas, United States
| |
Collapse
|
38
|
Endo K, Ohkubo T, Shibata T. Chemoselective Suzuki Coupling of Diborylmethane for Facile Synthesis of Benzylboronates. Org Lett 2011; 13:3368-71. [DOI: 10.1021/ol201115k] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kohei Endo
- Waseda Institute for Advanced Study, Shinjuku, Tokyo, 169-8050, Japan, PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, Saitama, 332-0012, Japan, and Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo, 169-8555, Japan
| | - Takahiro Ohkubo
- Waseda Institute for Advanced Study, Shinjuku, Tokyo, 169-8050, Japan, PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, Saitama, 332-0012, Japan, and Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo, 169-8555, Japan
| | - Takanori Shibata
- Waseda Institute for Advanced Study, Shinjuku, Tokyo, 169-8050, Japan, PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, Saitama, 332-0012, Japan, and Department of Chemistry and Biochemistry, School of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo, 169-8555, Japan
| |
Collapse
|
39
|
Delaunay T, Es-Sayed M, Vors JP, Monteiro N, Balme G. Facile Access to 3,5-Dihalogenated Pyrazoles by Sydnone Cycloaddition and their Versatile Functionalization by Pd-Catalyzed Cross-Coupling Processes. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100119] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
40
|
Çalimsiz S, Organ MG. Negishi cross-coupling of secondary alkylzinc halides with aryl/heteroaryl halides using Pd–PEPPSI–IPent. Chem Commun (Camb) 2011; 47:5181-3. [DOI: 10.1039/c0cc04835f] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
41
|
Ohmura T, Awano T, Suginome M. Stereospecific Suzuki-Miyaura coupling of chiral α-(acylamino)benzylboronic esters with inversion of configuration. J Am Chem Soc 2010; 132:13191-3. [PMID: 20822146 DOI: 10.1021/ja106632j] [Citation(s) in RCA: 216] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first invertive B-alkyl Suzuki-Miyaura coupling has been achieved. The coupling of enantioenriched α-(acylamino)benzylboronic esters with aryl bromides and chlorides took place efficiently in toluene at 80 °C in the presence of Pd(dba)(2) (5 mol %), XPhos (10 mol %), K(2)CO(3) (3 equiv), and H(2)O (2 equiv). The reaction proceeded with inversion of configuration to give diarylmethanamine derivatives in high yields with high conservation of enantiomeric excesses.
Collapse
Affiliation(s)
- Toshimichi Ohmura
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Kyoto 615-8510, Japan.
| | | | | |
Collapse
|
42
|
van den Hoogenband A, Lange JH, Bronger RP, Stoit AR, Terpstra JW. A simple, base-free preparation of S-aryl thioacetates as surrogates for aryl thiols. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.10.125] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
43
|
Endo K, Ohkubo T, Hirokami M, Shibata T. Chemoselective and regiospecific Suzuki coupling on a multisubstituted sp(3)-carbon in 1,1-diborylalkanes at room temperature. J Am Chem Soc 2010; 132:11033-5. [PMID: 20698667 DOI: 10.1021/ja105176v] [Citation(s) in RCA: 176] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The palladium-catalyzed Suzuki-Miyaura cross-coupling on a multisubstituted sp(3)-carbon in 1,1-diborylalkanes was achieved at room temperature. The generation of a monoborate intermediate by virtue of the adjacent B atom could result in the chemoselective coupling reaction under ambient conditions.
Collapse
Affiliation(s)
- Kohei Endo
- Waseda Institute for Advanced Study, Shinjuku, Tokyo, 169-8050, Japan.
| | | | | | | |
Collapse
|
44
|
Sandrock DL, Jean-Gérard L, Chen CY, Dreher SD, Molander GA. Stereospecific cross-coupling of secondary alkyl β-trifluoroboratoamides. J Am Chem Soc 2010; 132:17108-10. [PMID: 21077687 DOI: 10.1021/ja108949w] [Citation(s) in RCA: 189] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The stereospecific cross-coupling of enantioenriched nonbenzylic secondary alkyl boron compounds has been achieved. The high selectivity toward product formation over an undesired β-H elimination pathway is achieved via an intramolecular coordination of an ancillary carbonyl to the metal center in the diorganopalladium intermediate.
Collapse
Affiliation(s)
- Deidre L Sandrock
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, USA
| | | | | | | | | |
Collapse
|
45
|
López-Pérez A, Adrio J, Carretero JC. Palladium-catalyzed cross-coupling reaction of secondary benzylic bromides with grignard reagents. Org Lett 2010; 11:5514-7. [PMID: 19943702 DOI: 10.1021/ol902335c] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A mild palladium-catalyzed Kumada-Corriu reaction of secondary benzylic bromides with aryl and alkenyl Grignard reagents has been developed. In the presence of the Xantphos ligand, the undesired beta-elimination pathway is minimized, affording the corresponding cross-coupling products in acceptable to good yields. The reaction proceeds with inversion of the configuration.
Collapse
Affiliation(s)
- Ana López-Pérez
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
| | | | | |
Collapse
|
46
|
Molander G, Canturk B. Organotrifluorborate und einfach koordinierte Palladiumkomplexe als Katalysatoren â die perfekte Kombination für die Suzuki-Miyaura-Kupplung. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200904306] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
47
|
Bagutski V, Ros A, Aggarwal VK. Improved method for the conversion of pinacolboronic esters into trifluoroborate salts: facile synthesis of chiral secondary and tertiary trifluoroborates. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.10.002] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
48
|
van den Hoogenband A, den Hartog JA, Faber-Hilhorst N, Lange JH, Terpstra JW. A straightforward synthesis of 1,3-dichloro-5,8-dihydroisoquinoline by consecutive Stille cross-coupling and metathesis reactions. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.06.101] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
49
|
Ros A, Aggarwal V. Complete Stereoretention in the Rhodium-Catalyzed 1,2-Addition of Chiral Secondary and Tertiary Alkyl Potassium Trifluoroborate Salts to Aldehydes. Angew Chem Int Ed Engl 2009; 48:6289-92. [DOI: 10.1002/anie.200901900] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
50
|
Ros A, Aggarwal V. Complete Stereoretention in the Rhodium-Catalyzed 1,2-Addition of Chiral Secondary and Tertiary Alkyl Potassium Trifluoroborate Salts to Aldehydes. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200901900] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|