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Posevins D, Bäckvall JE. Iron-Catalyzed Cross-Couplings of Propargylic Substrates with Grignard Reagents. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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2
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Nickel-catalyzed deallylation of aryl allyl ethers with hydrosilanes. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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3
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Rana S, Biswas JP, Paul S, Paik A, Maiti D. Organic synthesis with the most abundant transition metal–iron: from rust to multitasking catalysts. Chem Soc Rev 2021; 50:243-472. [DOI: 10.1039/d0cs00688b] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The promising aspects of iron in synthetic chemistry are being explored for three-four decades as a green and eco-friendly alternative to late transition metals. This present review unveils these rich iron-chemistry towards different transformations.
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Affiliation(s)
- Sujoy Rana
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | | | - Sabarni Paul
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | - Aniruddha Paik
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | - Debabrata Maiti
- Department of Chemistry
- IIT Bombay
- Mumbai-400076
- India
- Tokyo Tech World Research Hub Initiative (WRHI)
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4
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Nickel-Catalyzed Removal of Alkene Protecting Group of Phenols, Alcohols via Chain Walking Process. Molecules 2020; 25:molecules25030602. [PMID: 32019185 PMCID: PMC7037277 DOI: 10.3390/molecules25030602] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/25/2020] [Accepted: 01/28/2020] [Indexed: 11/23/2022] Open
Abstract
An efficient nickel-catalyzed removal of alkene protection group under mild condition with high functional group tolerance through chain walking process has been established. Not only phenolic ethers, but also alcoholic ethers can be tolerated with the retention of stereocenter adjacent to hydroxyl group. The new reaction brings the homoallyl group into a start of new type of protecting group.
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5
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Li TZ, Geng CA, Chen JJ. First total synthesis of rhuscholide A, glabralide B and denudalide. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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6
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Cross-Coupling Reaction of Allylic Ethers with Aryl Grignard Reagents Catalyzed by a Nickel Pincer Complex. Molecules 2019; 24:molecules24122296. [PMID: 31234296 PMCID: PMC6631569 DOI: 10.3390/molecules24122296] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 06/17/2019] [Accepted: 06/18/2019] [Indexed: 01/12/2023] Open
Abstract
A cross-coupling reaction of allylic aryl ethers with arylmagnesium reagents was investigated using β-aminoketonato- and β-diketiminato-based pincer-type nickel(II) complexes as catalysts. An β-aminoketonato nickel(II) complex bearing a diphenylphosphino group as a third donor effectively catalyzed the reaction to afford the target cross-coupled products, allylbenzene derivatives, in high yield. The regioselective reaction of a variety of substituted cinnamyl ethers proceeded to give the corresponding linear products. In contrast, α- and γ-alkyl substituted allylic ethers afforded a mixture of the linear and branched products. These results indicated that the coupling reaction proceeded via a π-allyl nickel intermediate.
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7
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Dallman J, Lansakara A, Nguyen T, Weeramange C, Hulangamuwa W, Rafferty RJ. The winding road of the uvaretin class of natural products: from total synthesis to bioactive agent discovery. MEDCHEMCOMM 2019; 10:1420-1431. [PMID: 31673309 DOI: 10.1039/c9md00052f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 06/06/2019] [Indexed: 12/25/2022]
Abstract
Herein, we disclose the development of a synthetic route to gain access to the uvaretin class of chalcone natural products. In this, the construction of a small library was achieved, and the collection was evaluated for cytotoxicity and other biological properties. Uvaretin (1) was accessed via a seven-step route in an overall yield of 15.1%. Within this route, the unsaturated enone variant of uvaretin (2), also a natural product, was accessed in a 16.7% yield over six steps. This route provides a nearly three-fold increase in yields of 1 and 2 in comparison to the previous synthetic route accessing them in 5.8% and 3.0% overall yields, respectively. Evaluation of 1 and 2 revealed IC50 values between 2.0 and 5.1 μM in the cancerous cell lines HeLa, U937, A549, and MIA PaCa-2. Screening of the whole chalcone library set led to the discovery of over 30 compounds, within six cancerous cell lines, possessing single digit μM IC50 activity as sole agents. Furthermore, multiple library members were found to possess promising potentiating properties with known chemotherapeutic agents.
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Affiliation(s)
- Johnathan Dallman
- Department of Chemistry , Kansas State University , 1212 Mid-Campus Drive North , Manhattan , KS 66506 , USA .
| | - Ashabha Lansakara
- Department of Chemistry , Kansas State University , 1212 Mid-Campus Drive North , Manhattan , KS 66506 , USA .
| | - Thi Nguyen
- Department of Chemistry , Kansas State University , 1212 Mid-Campus Drive North , Manhattan , KS 66506 , USA .
| | - Chamitha Weeramange
- Department of Chemistry , Kansas State University , 1212 Mid-Campus Drive North , Manhattan , KS 66506 , USA .
| | - Wasundara Hulangamuwa
- Department of Chemistry , Kansas State University , 1212 Mid-Campus Drive North , Manhattan , KS 66506 , USA .
| | - Ryan J Rafferty
- Department of Chemistry , Kansas State University , 1212 Mid-Campus Drive North , Manhattan , KS 66506 , USA .
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8
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Ma E, Jiang Y, Chen Y, Qi L, Yan X, Li Z. Salicylate‐Directed C−O Bond Cleavage: Iron‐Catalyzed Allylic Substitution with Grignard Reagents. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800057] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Enlu Ma
- Department of ChemistryRenmin University of China Beijing 100872 P. R. China
| | - Yifan Jiang
- Department of ChemistryRenmin University of China Beijing 100872 P. R. China
| | - Yuanjin Chen
- Department of ChemistryRenmin University of China Beijing 100872 P. R. China
| | - Longying Qi
- Department of ChemistryRenmin University of China Beijing 100872 P. R. China
| | - Xiaoyu Yan
- Department of ChemistryRenmin University of China Beijing 100872 P. R. China
| | - Zhiping Li
- Department of ChemistryRenmin University of China Beijing 100872 P. R. China
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9
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Bisz E, Szostak M. Iron-Catalyzed C-O Bond Activation: Opportunity for Sustainable Catalysis. CHEMSUSCHEM 2017; 10:3964-3981. [PMID: 28840648 DOI: 10.1002/cssc.201701287] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Indexed: 06/07/2023]
Abstract
Oxygen-based electrophiles have emerged as some of the most valuable cross-coupling partners in organic synthesis due to several major strategic and environmental benefits, such as abundance and potential to avoid toxic halide waste. In this context, iron-catalyzed C-O activation/cross-coupling holds particular promise to achieve sustainable catalytic protocols due to its natural abundance, inherent low toxicity, and excellent economic and ecological profile. Recently, tremendous progress has been achieved in the development of new methods for functional-group-tolerant iron-catalyzed cross-coupling reactions by selective C-O cleavage. These methods establish highly attractive alternatives to traditional cross-coupling reactions by using halides as electrophilic partners. In particular, new easily accessible oxygen-based electrophiles have emerged as substrates in iron-catalyzed cross-coupling reactions, which significantly broaden the scope of this catalysis platform. New mechanistic manifolds involving iron catalysis have been established; thus opening up vistas for the development of a wide range of unprecedented reactions. The synthetic potential of this sustainable mode of reactivity has been highlighted by the development of new strategies in the construction of complex motifs, including in target synthesis. The most recent advances in sustainable iron-catalyzed cross-coupling of C-O-based electrophiles are reviewed, with a focus on both mechanistic aspects and synthetic utility. It should be noted that this catalytic manifold provides access to motifs that are often not easily available by other methods, such as the assembly of stereodefined dienes or C(sp2 )-C(sp3 ) cross-couplings, thus emphasizing the synthetic importance of this mode of reactivity.
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Affiliation(s)
- Elwira Bisz
- Department of Chemistry, Opole University, 48 Oleska Street, 45-052, Opole, Poland
| | - Michal Szostak
- Department of Chemistry, Opole University, 48 Oleska Street, 45-052, Opole, Poland
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ, 07102, USA
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10
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Tao JL, Yang B, Wang ZX. Pincer-Nickel-Catalyzed Allyl-Aryl Coupling between Allyl Methyl Ethers and Arylzinc Chlorides. J Org Chem 2015; 80:12627-34. [PMID: 26556232 DOI: 10.1021/acs.joc.5b02151] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The P,N,N-pincer nickel complex [Ni(Cl){N(2-Ph2PC6H4)(2'-Me2NC6H4)}]-catalyzed allyl-aryl coupling was studied. The reaction of allyl methyl ethers, including (1-methoxyallyl)arenes and (3-methoxyprop-1-en-1-yl)arenes, with arylzinc chlorides afforded linear (E)-alkenes in high yields, whereas the reaction of (E)-1-methoxytridec-2-ene with p-Me2NC6H4ZnCl generated a mixture of linear and branched alkenes.
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Affiliation(s)
- Jian-Long Tao
- CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, People's Republic of China
| | - Bo Yang
- CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, People's Republic of China
| | - Zhong-Xia Wang
- CAS Key Laboratory of Soft Matter Chemistry and Department of Chemistry, University of Science and Technology of China , Hefei, Anhui 230026, People's Republic of China.,Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072, People's Republic of China
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11
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Gärtner D, Stein AL, Grupe S, Arp J, Jacobi von Wangelin A. Iron-Catalyzed Cross-Coupling of Alkenyl Acetates. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504524] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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12
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Gärtner D, Stein AL, Grupe S, Arp J, Jacobi von Wangelin A. Iron-Catalyzed Cross-Coupling of Alkenyl Acetates. Angew Chem Int Ed Engl 2015; 54:10545-9. [PMID: 26184455 DOI: 10.1002/anie.201504524] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Indexed: 11/06/2022]
Abstract
Stable C-O linkages are generally unreactive in cross-coupling reactions which mostly employ more electrophilic halides or activated esters (triflates, tosylates). Acetates are cheap and easily accessible electrophiles but have not been used in cross-couplings because the strong C-O bond and high propensity to engage in unwanted acetylation and deprotonation. Reported herein is a selective iron-catalyzed cross-coupling of diverse alkenyl acetates, and it operates under mild reaction conditions (0 °C, 2 h) with a ligand-free catalyst (1-2 mol%).
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Affiliation(s)
- Dominik Gärtner
- Institute of Organic Chemistry, University of Regensburg, Universitaetsstr. 31, 93040 Regensburg (Germany)
| | - André Luiz Stein
- Institute of Organic Chemistry, University of Regensburg, Universitaetsstr. 31, 93040 Regensburg (Germany)
| | - Sabine Grupe
- Institute of Organic Chemistry, University of Regensburg, Universitaetsstr. 31, 93040 Regensburg (Germany)
| | - Johannes Arp
- Institute of Organic Chemistry, University of Regensburg, Universitaetsstr. 31, 93040 Regensburg (Germany)
| | - Axel Jacobi von Wangelin
- Institute of Organic Chemistry, University of Regensburg, Universitaetsstr. 31, 93040 Regensburg (Germany).
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13
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Affiliation(s)
- Ingmar Bauer
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
| | - Hans-Joachim Knölker
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
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14
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Hedström A, Izakian Z, Vreto I, Wallentin CJ, Norrby PO. On the Radical Nature of Iron-Catalyzed Cross-Coupling Reactions. Chemistry 2015; 21:5946-53. [DOI: 10.1002/chem.201406096] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Indexed: 12/31/2022]
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15
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Yadav VK, Verma AK, Kumar P, Hulikal V. 2-Arylcyclopropylmethanol as a substitute for homoallyl aryl alcohol in the construction of cis-2,6-disubstituted tetrahydropyran: synthesis of (±)-centrolobine. Chem Commun (Camb) 2014; 50:15457-60. [PMID: 25354489 DOI: 10.1039/c4cc07796b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The application of 2-arylcyclopropylmethanols as substitutes to homoallyl aryl alcohols and their reactions with aliphatic aldehydes in the presence of SnCl4 in CH2Cl2 leads to an efficient Prins cyclization to generate cis-2,6-disubstituted tetrahydropyrans in high yields. The reaction is free from 2-oxonia-Cope rearrangement. This protocol was used to synthesize (±)-centrolobine in an overall 84% yield over three steps. The protocol holds promise for scaffold generation for medicinal chemistry exploitation.
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Affiliation(s)
- Veejendra K Yadav
- Department of Chemistry, Indian Institute of Technology, Kanpur 208016, India.
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16
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Sugiyama YK, Heigozono S, Okamoto S. Iron-Catalyzed Reductive Magnesiation of Oxetanes to Generate (3-Oxidopropyl)magnesium Reagents. Org Lett 2014; 16:6278-81. [DOI: 10.1021/ol503191w] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yu-ki Sugiyama
- Department
of Material and
Life Chemistry, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Shiori Heigozono
- Department
of Material and
Life Chemistry, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Sentaro Okamoto
- Department
of Material and
Life Chemistry, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
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17
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Watanabe K, Mino T, Abe T, Kogure T, Sakamoto M. Hydrazone-palladium-catalyzed allylic arylation of cinnamyloxyphenylboronic acid pinacol esters. J Org Chem 2014; 79:6695-702. [PMID: 24962496 DOI: 10.1021/jo501235w] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Allylic arylation of cinnamyloxyphenylboronic acid pinacol esters 3, which have arylboronic acid moiety and allylic ether moiety, using a hydrazone 1d-Pd(OAc)2 system proceeded and gave the corresponding 1,3-diarylpropene derivatives 4 with a phenolic hydroxyl group via a selective coupling reaction of the π-allyl intermediate to the boron-substituted position of the leaving group.
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Affiliation(s)
- Kohei Watanabe
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University , 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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