1
|
Tang Y, Huang M, Jin J, Sun S, Wang L, Tan Y, Sun X, Guo H. Asymmetric Construction of Chiral 2-Azetines and Axially Chiral Tetrasubstituted Allenes Via Phosphine Catalysis. Angew Chem Int Ed Engl 2025; 64:e202415787. [PMID: 39523451 DOI: 10.1002/anie.202415787] [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: 08/18/2024] [Revised: 11/01/2024] [Accepted: 11/10/2024] [Indexed: 11/16/2024]
Abstract
Chiral 2-azetines and allenes are highly valuable structural units in natural products and useful chemicals. However, enantioselective synthesis of both 2-azetines and allenes has been extremely challenging. Herein, we present asymmetric construction of chiral 2-azetines (70-98 % yields and up to 96 % ee) through chiral phosphine-catalyzed [2+2] annulation of yne-enones with sulfamate-derived cyclic imines. These 2-azetines were easily transformed into chiral allenes upon treatment with Et3SiH, BF3 ⋅ Et2O and water at rt for 2 minutes. Based on the above transformations, a concise one-pot synthetic procedure combining [2+2] annulation of yne-enones and sulfamate-derived cyclic imines under phosphine catalysis and sequential reduction/isomerization/ring-opening reaction through Et3SiH, BF3 ⋅ Et2O and water was thus set up, providing axially chiral tetrasubstituted allenes in satisfactory yields and enantioselectivities (56-90 % yields and up to 91 % ee).
Collapse
Affiliation(s)
- Yi Tang
- Department of Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, P. R. China
| | - Mingxia Huang
- Department of Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, P. R. China
| | - Jingrong Jin
- Department of Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, P. R. China
| | - Shitao Sun
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Lan Wang
- Department of Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, P. R. China
| | - Yu Tan
- Department of Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, P. R. China
| | - Xiaojing Sun
- Department of Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, P. R. China
| | - Hongchao Guo
- Department of Chemistry, China Agricultural University, 2 West Yuanmingyuan Road, Beijing, 100193, P. R. China
| |
Collapse
|
2
|
Yang B, Federmann P, Warth V, Ren M, Mu X, Wu H, Bäckvall JE. Total Synthesis of Strigolactones via Palladium-Catalyzed Cascade Carbonylative Carbocyclization of Enallenes. Org Lett 2024; 26:4637-4642. [PMID: 38805214 PMCID: PMC11165582 DOI: 10.1021/acs.orglett.4c01283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 05/20/2024] [Accepted: 05/24/2024] [Indexed: 05/29/2024]
Abstract
Here we report an efficient route for synthesizing strigolactones (SLs) and their derivatives. Our method relies on a palladium-catalyzed oxidative carbonylation/carbocyclization/carbonylation/alkoxylation cascade reaction, which involves the formation of three new C-C bonds and a new C-O bond while cleaving one C(sp3)-H bond in a single step. With our versatile synthetic strategy, both naturally occurring and artificial SLs were prepared.
Collapse
Affiliation(s)
- Bin Yang
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
- School
of Chemistry, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Patrick Federmann
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
| | - Viktoria Warth
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
| | - Mingzhe Ren
- School
of Chemistry, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Xin Mu
- School
of Chemistry, Xi’an Jiaotong University, Xi’an 710049, P. R. China
| | - Haibo Wu
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
| | - Jan-E. Bäckvall
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691 Stockholm, Sweden
| |
Collapse
|
3
|
Chen P, Chen HN, Wong HNC, Peng XS. Recent advances in iron-catalysed coupling reactions for the construction of the C(sp 2)-C(sp 2) bond. Org Biomol Chem 2023. [PMID: 37485859 DOI: 10.1039/d3ob00824j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
The advancement of transition-metal-catalyzed coupling reactions has been demonstrated as a highly effective strategy for the formation of carbon-carbon bonds, which serve as the fundamental basis for organic synthetic chemistry. Given that iron represents one of the most economical and ecologically sustainable metallic elements available, the exploration and enhancement of iron-catalysed coupling reactions have garnered increasing interest within the scientific community. In recent years, numerous iron-catalysed reactions have been reported, showcasing their efficacy in establishing C-C bonds. In this minireview, we present a systematic analysis of C(sp2)-C(sp2) bond formation via iron-catalysed coupling reactions as documented in the extant literature.
Collapse
Affiliation(s)
- Peng Chen
- College of Advanced Interdisciplinary Science and Technology (CAIST), Henan University of Technology, Zhengzhou 450001, China.
| | - Hao-Nan Chen
- School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Longgang District, Shenzhen 518000, China.
| | - Henry N C Wong
- School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Longgang District, Shenzhen 518000, China.
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR 999077, China
| | - Xiao-Shui Peng
- School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Longgang District, Shenzhen 518000, China.
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR 999077, China
| |
Collapse
|
4
|
Huo LQ, Wang XH, Zhang Z, Jia Z, Peng XS, Wong HNC. Sustainable and practical formation of carbon-carbon and carbon-heteroatom bonds employing organo-alkali metal reagents. Chem Sci 2023; 14:1342-1362. [PMID: 36794178 PMCID: PMC9906645 DOI: 10.1039/d2sc05475b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022] Open
Abstract
Metal-catalysed cross-coupling reactions are amongst the most widely used methods to directly construct new bonds. In this connection, sustainable and practical protocols, especially transition metal-catalysed cross-coupling reactions, have become the focus in many aspects of synthetic chemistry due to their high efficiency and atom economy. This review summarises recent advances from 2012 to 2022 in the formation of carbon-carbon bonds and carbon-heteroatom bonds by employing organo-alkali metal reagents.
Collapse
Affiliation(s)
- Lu-Qiong Huo
- School of Science and Engineering, Shenzhen Key Laboratory of Innovative Drug Synthesis, The Chinese University of Hong Kong (Shenzhen) Longgang District Shenzhen China
| | - Xin-Hao Wang
- School of Science and Engineering, Shenzhen Key Laboratory of Innovative Drug Synthesis, The Chinese University of Hong Kong (Shenzhen) Longgang District Shenzhen China
| | - Zhenguo Zhang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University Nanjing 211816 China
| | - Zhenhua Jia
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University Nanjing 211816 China
| | - Xiao-Shui Peng
- School of Science and Engineering, Shenzhen Key Laboratory of Innovative Drug Synthesis, The Chinese University of Hong Kong (Shenzhen) Longgang District Shenzhen China
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong Shatin, New Territories Hong Kong SAR China
| | - Henry N C Wong
- School of Science and Engineering, Shenzhen Key Laboratory of Innovative Drug Synthesis, The Chinese University of Hong Kong (Shenzhen) Longgang District Shenzhen China
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong Shatin, New Territories Hong Kong SAR China
| |
Collapse
|
5
|
Yu Y, Feng Y, Ma W, Li H, Yang M, Zhang G, Yang Y. Silver Iodide‐mediated Insertion of Indium to Synthesize Water‐tolerant Organoindium Reagents and the Application in Cross‐coupling Reactions. ChemistrySelect 2022. [DOI: 10.1002/slct.202202061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yunzi Yu
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing School of Chemistry and Engineering Wuhan Textile University Wuhan City Hubei Province China
| | - Yuqin Feng
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing School of Chemistry and Engineering Wuhan Textile University Wuhan City Hubei Province China
| | - Wenxia Ma
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing School of Chemistry and Engineering Wuhan Textile University Wuhan City Hubei Province China
| | - Haibo Li
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing School of Chemistry and Engineering Wuhan Textile University Wuhan City Hubei Province China
| | - Ming Yang
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing School of Chemistry and Engineering Wuhan Textile University Wuhan City Hubei Province China
| | - Gang Zhang
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing School of Chemistry and Engineering Wuhan Textile University Wuhan City Hubei Province China
| | - Yongsheng Yang
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing School of Chemistry and Engineering Wuhan Textile University Wuhan City Hubei Province China
| |
Collapse
|
6
|
Computational study of the boraformylation of allenes catalyzed by copper complexes. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2021.113575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
7
|
Chen P, Wang ZY, Wang JX, Peng XS, Wong HNC. Remote C(sp 3)–H activation: palladium-catalyzed intermolecular arylation and alkynylation with organolithiums and terminal alkynes. Org Chem Front 2022. [DOI: 10.1039/d2qo00584k] [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
A 1,4-palladium shift is regarded as one of the solutions towards the challenging remote C(sp3)–H activation.
Collapse
Affiliation(s)
- Peng Chen
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Zhi-Yong Wang
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Jia-Xin Wang
- School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Longgang District, Shenzhen, China
| | - Xiao-Shui Peng
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
- School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Longgang District, Shenzhen, China
| | - Henry N. C. Wong
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
- School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Longgang District, Shenzhen, China
| |
Collapse
|
8
|
Kaliyamoorthy A, Rayaroth A, Elikkottil A, Chithra MJ, A. V. K, Reddy VS. Regioselective Allenylation and Propargylation of Various para-Quinone Methides Using Alkynyl Azaarenes as Pronucleophile. Chem Commun (Camb) 2022; 58:10671-10674. [DOI: 10.1039/d2cc03439e] [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
We have developed a Brønsted base-mediated regioselective allenylation and propargylation of various para-quinone methides using unfunctionalized 2-alkynyl azaarenes as the pronucleophile. The appropriate choice of a base provides an opportunity...
Collapse
|
9
|
Hazra S, Johansson Seechurn CCC, Handa S, Colacot TJ. The Resurrection of Murahashi Coupling after Four Decades. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03564] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Susanta Hazra
- 2320 S. Brook St., Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | | | - Sachin Handa
- 2320 S. Brook St., Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Thomas J. Colacot
- Millipore Sigma (Business of Merck KGaA, Darmstadt, Germany), 6000 N. Teutonia Avenue, Milwaukee, Wisconsin 53209, United States
| |
Collapse
|
10
|
Freure GPR, Skrotzki EA, Lavertu JDE, Newman SG. Palladium-Catalyzed Cross-Coupling of Superbase-Generated C(sp 3) Nucleophiles. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03180] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Garrett P. R. Freure
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, Ontario, Canada K1N 6N5
| | - Eric A. Skrotzki
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, Ontario, Canada K1N 6N5
| | - Jean-Danick E. Lavertu
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, Ontario, Canada K1N 6N5
| | - Stephen G. Newman
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie-Curie, Ottawa, Ontario, Canada K1N 6N5
| |
Collapse
|
11
|
Zhou ZZ, Song XR, Du S, Xia KJ, Tian WF, Xiao Q, Liang YM. Photoredox/nickel dual-catalyzed regioselective alkylation of propargylic carbonates for trisubstituted allenes. Chem Commun (Camb) 2021; 57:9390-9393. [PMID: 34528958 DOI: 10.1039/d1cc03303d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Herein, a highly regioselective alkylation of propargylic carbonates for trisubstituted allenes with alkyl 1,4-dihydropyridine derivatives (1,4-DHPs) is developed via a photoredox/nickel dual-catalyzed process, which represents the first direct approach to access alkylated allene products without alkyl organometallic reagents. This method features a broad substrate scope and mild conditions. A hypothetical mechanism with an alkyl radical and an allenyl Ni(III) species is proposed. Benzylation products were also obtained to be the complement building blocks for the potential synthesis of pharmaceuticals.
Collapse
Affiliation(s)
- Zhao-Zhao Zhou
- College of Chemistry and Food Science, Nanchang Normal University, Nanchang, 330000, P. R. China. .,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, P. R. China.
| | - Xian-Rong Song
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, 330000, Jiangxi Province, P. R. China.
| | - Sha Du
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, 330000, Jiangxi Province, P. R. China.
| | - Ke-Jian Xia
- College of Chemistry and Food Science, Nanchang Normal University, Nanchang, 330000, P. R. China.
| | - Wan-Fa Tian
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, 330000, Jiangxi Province, P. R. China.
| | - Qiang Xiao
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, 330000, Jiangxi Province, P. R. China.
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, 730000, P. R. China.
| |
Collapse
|
12
|
Mondal A, Visser P, Doze AM, Buter J, Feringa BL. Pd-catalyzed sp-sp 3 cross-coupling of benzyl bromides using lithium acetylides. Chem Commun (Camb) 2021; 57:7529-7532. [PMID: 34236070 PMCID: PMC8320736 DOI: 10.1039/d1cc02762j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Organolithium-based cross-coupling reactions have emerged as an indispensable method to construct C–C bonds. These transformations have proven particularly useful for the direct and fast coupling of various organolithium reagents (sp, sp2, and sp3) with aromatic (pseudo) halides (sp2). Here we present an efficient method for the cross-coupling of benzyl bromides (sp3) with lithium acetylides (sp). The reaction proceeds within 10 min at room temperature and can be performed in the presence of organolithium-sensitive functional groups such as esters, nitriles, amides and boronic esters. The potential application of the methodology is demonstrated in the preparation of key intermediates used in pharmaceuticals, chemical biology and natural products. A fast and highly selective method for cross-coupling of benzyl bromides with lithium acetylides, proceeding at room temperature in 10 min while tolerating various organolithium-sensitive functional groups, is presented.![]()
Collapse
Affiliation(s)
- Anirban Mondal
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands.
| | - Paco Visser
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands.
| | - Anna M Doze
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands.
| | - Jeffrey Buter
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands.
| | - Ben L Feringa
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands.
| |
Collapse
|
13
|
Chen P, Wang ZY, Peng XS, Wong HNC. Stereospecific Iron-Catalyzed Carbon (sp 2)-Carbon (sp 2) Cross-Coupling of Aryllithium with Vinyl Halides. Org Lett 2021; 23:4385-4390. [PMID: 34008404 DOI: 10.1021/acs.orglett.1c01318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We present herein an efficient synthetic protocol involving iron-catalyzed cross-coupling of organolithium compounds with vinyl halides as key coupling partners. More than 30 examples were obtained with moderate to good yields and high stereoselectivities. The practicality of this method is evidenced by a gram-scale synthesis. In addition, a preliminary mechanistic investigation was also performed.
Collapse
Affiliation(s)
- Peng Chen
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Zhi-Yong Wang
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Xiao-Shui Peng
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China.,School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Longgang District, Shenzhen 518172, China
| | - Henry N C Wong
- Department of Chemistry, and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China.,School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen), Longgang District, Shenzhen 518172, China
| |
Collapse
|
14
|
Trofimova A, Holownia A, Tien CH, Širvinskas MJ, Yudin AK. Acylboronates in Polarity-Reversed Generation of Acyl Palladium(II) Intermediates. Org Lett 2021; 23:3294-3299. [PMID: 33848176 DOI: 10.1021/acs.orglett.1c00742] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We report a catalytic cross-coupling process between aryl (pseudo)halides and boron-based acyl anion equivalents. This mode of acylboronate reactivity represents polarity reversal, which is supported by the observation of tetracoordinated boronate and acyl palladium(II) species by 11B, 31P NMR, and mass spectrometry. A broad scope of aliphatic and aromatic acylboronates has been examined, as well as a variety of aryl (pseudo)halides.
Collapse
Affiliation(s)
- Alina Trofimova
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Aleksandra Holownia
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Chieh-Hung Tien
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Martynas J Širvinskas
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Andrei K Yudin
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| |
Collapse
|
15
|
Panahi F, Khosravi H, Bauer F, Breit B. Asymmetric hydroalkylation of alkynes and allenes with imidazolidinone derivatives: α-alkenylation of α-amino acids. Chem Sci 2021; 12:7388-7392. [PMID: 34163828 PMCID: PMC8171337 DOI: 10.1039/d1sc00240f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 04/21/2021] [Indexed: 01/20/2023] Open
Abstract
This work reports a new method for the synthesis of quaternary α-alkenyl substituted amino acids by the enantio- and diastereoselective addition of imidazolidinone derivatives to alkynes and allenes. Further hydrolysis of the imidazolidinone products under acidic conditions afforded biologically relevant amino acid derivatives. This method is geometry-selective (E-isomer), enantio- and diastereoselective, and products were obtained in good to excellent yields. The utility of this new methodology is proved by its operational simplicity and the successful accomplishment of gram-scale reactions. Experimental and computational studies suggest the key role of Li in terms of selectivity and support the proposed reaction mechanism.
Collapse
Affiliation(s)
- Farhad Panahi
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg Albertstraße 21 79104 Freiburg im Breisgau Germany
| | - Hormoz Khosravi
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg Albertstraße 21 79104 Freiburg im Breisgau Germany
| | - Felix Bauer
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg Albertstraße 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg Albertstraße 21 79104 Freiburg im Breisgau Germany
| |
Collapse
|
16
|
Gentner TX, Mulvey RE. Alkali-Metal Mediation: Diversity of Applications in Main-Group Organometallic Chemistry. Angew Chem Int Ed Engl 2021; 60:9247-9262. [PMID: 33017511 PMCID: PMC8247348 DOI: 10.1002/anie.202010963] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Indexed: 12/23/2022]
Abstract
Organolithium compounds have been at the forefront of synthetic chemistry for over a century, as they mediate the synthesis of myriads of compounds that are utilised worldwide in academic and industrial settings. For that reason, lithium has always been the most important alkali metal in organometallic chemistry. Today, that importance is being seriously challenged by sodium and potassium, as the alkali-metal mediation of organic reactions in general has started branching off in several new directions. Recent examples covering main-group homogeneous catalysis, stoichiometric organic synthesis, low-valent main-group metal chemistry, polymerization, and green chemistry are showcased in this Review. Since alkali-metal compounds are often not the end products of these applications, their roles are rarely given top billing. Thus, this Review has been written to alert the community to this rising unifying phenomenon of "alkali-metal mediation".
Collapse
Affiliation(s)
- Thomas X. Gentner
- Department of Pure and Applied ChemistryUniversity of StrathclydeGlasgowG1 1XLUK
| | - Robert E. Mulvey
- Department of Pure and Applied ChemistryUniversity of StrathclydeGlasgowG1 1XLUK
| |
Collapse
|
17
|
Helbert H, Antunes IF, Luurtsema G, Szymanski W, Feringa BL, Elsinga PH. Cross-coupling of [ 11C]methyllithium for 11C-labelled PET tracer synthesis. Chem Commun (Camb) 2021; 57:203-206. [PMID: 33300515 DOI: 10.1039/d0cc05392a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The cross-coupling of aryl bromides with [11C]CH3Li for the labelling of a variety of tracers for positron emission tomography (PET) is presented. The radiolabelled products were obtained in excellent yields, at rt and after short reaction times (3-5 min) compatible with the half-life of 11C (20.4 min). The automation of the protocol on a synthesis module is investigated, representing an important step towards a fast method for the synthesis of 11C-labelled compounds for PET imaging.
Collapse
Affiliation(s)
- Hugo Helbert
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG, Groningen, The Netherlands.
| | | | | | | | | | | |
Collapse
|
18
|
Gentner TX, Mulvey RE. Alkalimetall‐Mediatoren: Vielfältige Anwendungen in der metallorganischen Chemie der Hauptgruppenelemente. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010963] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Thomas X. Gentner
- Department of Pure and Applied Chemistry University of Strathclyde Glasgow G1 1XL Großbritannien
| | - Robert E. Mulvey
- Department of Pure and Applied Chemistry University of Strathclyde Glasgow G1 1XL Großbritannien
| |
Collapse
|
19
|
Sun M, Li J, Liang C, Shan C, Shen X, Cheng R, Ma Y, Ye J. Practical and rapid construction of 2-pyridyl ketone library in continuous flow. J Flow Chem 2020. [DOI: 10.1007/s41981-020-00120-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
20
|
Hu Y, Shi W, Zheng B, Liao J, Wang W, Wu Y, Guo H. Organocatalytic Asymmetric C(sp
2
)−H Allylic Alkylation: Enantioselective Synthesis of Tetrasubstituted Allenoates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009460] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yimin Hu
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Wangyu Shi
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Bing Zheng
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Jianning Liao
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Wei Wang
- College of Public Health Zhengzhou University Zhengzhou 450001 P. R. China
| | - Yongjun Wu
- College of Public Health Zhengzhou University Zhengzhou 450001 P. R. China
| | - Hongchao Guo
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| |
Collapse
|
21
|
Hu Y, Shi W, Zheng B, Liao J, Wang W, Wu Y, Guo H. Organocatalytic Asymmetric C(sp
2
)−H Allylic Alkylation: Enantioselective Synthesis of Tetrasubstituted Allenoates. Angew Chem Int Ed Engl 2020; 59:19820-19824. [PMID: 32820579 DOI: 10.1002/anie.202009460] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Yimin Hu
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Wangyu Shi
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Bing Zheng
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Jianning Liao
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| | - Wei Wang
- College of Public Health Zhengzhou University Zhengzhou 450001 P. R. China
| | - Yongjun Wu
- College of Public Health Zhengzhou University Zhengzhou 450001 P. R. China
| | - Hongchao Guo
- Department of Chemistry China Agricultural University 2 West Yuanmingyuan Road Beijing 100193 P. R. China
| |
Collapse
|