1
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Swann WA, Yadav A, Colvin NB, Freundl NK, Li CW. Diastereoselective Hydrogenation of Tetrasubstituted Olefins using a Heterogeneous Pt-Ni Alloy Catalyst. Angew Chem Int Ed Engl 2024; 63:e202317710. [PMID: 38407502 PMCID: PMC11098551 DOI: 10.1002/anie.202317710] [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: 11/20/2023] [Revised: 02/24/2024] [Accepted: 02/26/2024] [Indexed: 02/27/2024]
Abstract
Stereoselective hydrogenation of tetrasubstituted olefins is an attractive method to access compounds with two contiguous stereocenters. However, homogeneous catalysts for enantio- and diastereoselective hydrogenation exhibit low reactivity toward tetrasubstituted olefins due to steric crowding between the ligand scaffold and the substrate. Monometallic heterogeneous catalysts, on the other hand, provide accessible surface active sites for hindered olefins but exhibit unpredictable and inconsistent stereoinduction. In this work, we develop a Pt-Ni bimetallic alloy catalyst that can diastereoselectively hydrogenate unactivated, sterically-bulky tetrasubstituted olefins, utilizing the more oxophilic Ni atoms to adsorb a hydroxyl directing group and direct facially-selective hydrogen addition to the olefin via the Pt atoms. Structure-activity studies on several Pt-Ni compositions underscore the importance of exposing a uniform PtNi alloy surface to achieve high diastereoselectivity and minimize side reactions. The optimized Pt-Ni/SiO2 catalyst exhibits good functional group tolerance and broad scope for tetrasubstituted olefins in a cyclopentene scaffold, generating cyclopentanol products with three contiguous stereocenters. The synthetic utility of the method is demonstrated in a four-step synthesis of (1R,2S)-(+)-cis-methyldihydrojasmonate with high yield and enantiopurity.
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Affiliation(s)
- William A. Swann
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Anish Yadav
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Nicholas B. Colvin
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Nicole K. Freundl
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Christina W. Li
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
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2
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Shui L, Liu F, Wang X, Ma C, Qiang Q, Shen M, Fang Y, Ni SF, Rong ZQ. Ligand-Induced chemodivergent nickel-catalyzed annulations via tandem isomerization/esterification and direct O-allylic substitution: Divergent access to 3,4-dihydrocoumarins and 2H-chromenes. J Catal 2023. [DOI: 10.1016/j.jcat.2023.03.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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3
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Dangalov M, Fernández-Figueiras A, Ravutsov MA, Vakarelska E, Marinova MK, Candeias NR, Simeonov SP. Ru-Catalyzed Isomerization of Achmatowicz Derivatives: A Sustainable Route to Biorenewables and Bioactive Lactones. ACS Catal 2023; 13:1916-1925. [PMID: 36776384 PMCID: PMC9904008 DOI: 10.1021/acscatal.2c04867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 01/03/2023] [Indexed: 01/20/2023]
Abstract
A Ru-catalyzed isomerization of Achmatowicz derivatives that opens unexplored routes to diversify the biogenic furanic platform is reported. The mechanistic insights of this formally redox-neutral intramolecular process were studied computationally and by deuterium labeling. The transformation proved to be a robust synthetic tool to achieve the synthesis of bioderived-monomers and a series of 4-keto-δ-valerolactones that further enabled the development of a flexible strategy for the synthesis of acetogenins. A concise and protective group-free asymmetric total synthesis of two natural products, namely, (S,S)-muricatacin and the (S,S)-L-factor, is also described.
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Affiliation(s)
- Miroslav Dangalov
- Institute
of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl 9, Sofia 1113, Bulgaria
| | - Adolfo Fernández-Figueiras
- Institute
of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl 9, Sofia 1113, Bulgaria
| | - Martin A. Ravutsov
- Institute
of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl 9, Sofia 1113, Bulgaria
| | - Ekaterina Vakarelska
- Institute
of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl 9, Sofia 1113, Bulgaria
| | - Maya K. Marinova
- Institute
of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl 9, Sofia 1113, Bulgaria
| | - Nuno R. Candeias
- LAQV-REQUIMTE,
Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal,Faculty
of Engineering and Natural Sciences, Tampere
University, Korkeakoulunkatu
8, 33101 Tampere, Finland
| | - Svilen P. Simeonov
- Institute
of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl 9, Sofia 1113, Bulgaria,Research
Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal,
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4
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Li F, Luo Y, Zhu X, Ye Y, Yuan Q, Zhang W. Iridium-Catalyzed 1,3-Rearrangement of Allylic Alcohols. Chemistry 2023; 29:e202300027. [PMID: 36620961 DOI: 10.1002/chem.202300027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/10/2023]
Abstract
The allylic alcohol structural motif is prevalent in many important molecules and valuable building blocks. The rearrangement reaction is one of the most important transformations, however there are only a few reports for the 1,3-rearrangement of allylic alcohols. Herein, a 1,3-rearrangement of allylic alcohols catalyzed by an Ir(III) dihydride complex is described. This reaction could provide the corresponding less accessible allylic alcohols regio- and stereoselectively from readily available E/Z mixtures of the substrates. Furthermore, a tandem alkene isomerization followed by 1,3-rearrangement of homoallylic alcohols was also realized. In addition, this rearrangement reaction could be used to synthesize the natural product Navenone B. Mechanistic investigation indicated that the reaction pathway involved a π-allyl-Ir(V) intermediate and that the dihydride in the iridium catalyst acts as a hydrogen switch to modulate the valence of the iridium center.
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Affiliation(s)
- Fei Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, P. R. China
| | - Yicong Luo
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, P. R. China
| | - Xuejie Zhu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, P. R. China
| | - Yong Ye
- College of Chemistry, Zhengzhou University, 75 Daxue Road, Zhengzhou, 450052, Henan, P. R. China
| | - Qianjia Yuan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, P. R. China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, 200240, Shanghai, P. R. China.,College of Chemistry, Zhengzhou University, 75 Daxue Road, Zhengzhou, 450052, Henan, P. R. China
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5
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Li X, Yang X, Chen P, Liu G. Palladium-Catalyzed Remote Hydro-Oxygenation of Internal Alkenes: An Efficient Access to Primary Alcohols. J Am Chem Soc 2022; 144:22877-22883. [PMID: 36508607 DOI: 10.1021/jacs.2c11428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
As a general method for the synthesis of alcohols, the direct oxygenation of alkenes is difficult to afford linear alcohols. Herein, we communicate the remote hydro-oxygenation of alkenes under palladium catalysis, in which both terminal and internal alkenes are suitable to yield the corresponding linear alcohols efficiently. A compatible SelectFluor/silane redox system plays an essential role for the excellent chemo- and regioselectivities. The reaction features a broad substrate scope and excellent functional group compatibility.
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Affiliation(s)
- Xiang Li
- State Key Laboratory of Organometallic Chemistry and Shanghai Hongkong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.,Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Xintuo Yang
- State Key Laboratory of Organometallic Chemistry and Shanghai Hongkong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Pinhong Chen
- State Key Laboratory of Organometallic Chemistry and Shanghai Hongkong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China
| | - Guosheng Liu
- State Key Laboratory of Organometallic Chemistry and Shanghai Hongkong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200032, China.,Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
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6
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Luo Z, Zhang X, Liu ZQ, Hong CM, Li QH, Liu TL. Ruthenium-Catalyzed 1,3-Aryl Redox Isomerization of Allylic Alcohols. Org Lett 2022; 24:8072-8076. [DOI: 10.1021/acs.orglett.2c03410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhen Luo
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P.R. China
| | - Xue Zhang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P.R. China
| | - Zheng-Qiang Liu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P.R. China
| | - Chuan-Ming Hong
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P.R. China
| | - Qing-Hua Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P.R. China
| | - Tang-Lin Liu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P.R. China
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7
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Hong CM, Xiong SQ, Zhang X, Ma KX, Li QH, Liu TL. Sliver-Catalyzed 1,3-Aza-Benzyl Migration of Allyl Alcohol. Org Lett 2022; 24:7712-7716. [PMID: 36201425 DOI: 10.1021/acs.orglett.2c02809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Carbon migration of alkenyl alcohols has been recognized as an increasingly viable methodology in organic synthesis. Herein, we disclose a silver-catalyzed 1,3-aza-benzyl migration of allyl alcohols by utilizing chelation-assisted selective cleavage of an unstrained C(sp3)-C(sp3) bond. This approach provides an available, efficient, high atom-economic, and environmentally benign procedure, leading to alkylation products with broad substrate scopes and excellent yields. The migration proceeds via a one-pot, two-step process involving a free-state alkyl metal species.
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Affiliation(s)
- Chuan-Ming Hong
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Si-Qi Xiong
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xue Zhang
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Kai-Xian Ma
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Qing-Hua Li
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Tang-Lin Liu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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8
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Wang H, Tian YM, König B. Energy- and atom-efficient chemical synthesis with endergonic photocatalysis. Nat Rev Chem 2022; 6:745-755. [PMID: 37117495 DOI: 10.1038/s41570-022-00421-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2022] [Indexed: 11/09/2022]
Abstract
Endergonic photocatalysis is the use of light to perform catalytic reactions that are thermodynamically unfavourable. While photocatalysis has become a powerful tool in facilitating chemical transformations, the light-energy efficiency of these processes has not gathered much attention. Exergonic photocatalysis does not take full advantage of the light energy input, producing low-energy products and heat, whereas endergonic photocatalysis incorporates a portion of the photon energy into the reaction, yielding products that are higher in free energy than the reactants. Such processes can enable catalytic, atom-economic syntheses of reactive compounds from bench-stable materials. With respect to environmental friendliness and carbon neutrality, endergonic photocatalysis is also of interest to large-scale industrial manufacturing, where better energy efficiency, less waste and value addition are highly sought. We therefore assess here the thermochemistry of several classes of reported photocatalytic transformations to showcase current advances in endergonic photocatalysis and point to their industrial potential.
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9
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Siddaraju Y, Sabbatani J, Cohen A, Marek I. Preparation of Distant Quaternary Carbon Stereocenters by Double Selective Ring-Opening of 1,1-Biscyclopropyl Methanol Derivatives. Angew Chem Int Ed Engl 2022; 61:e202203652. [PMID: 35521738 PMCID: PMC9401570 DOI: 10.1002/anie.202203652] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Indexed: 12/15/2022]
Abstract
The diastereoselective double carbometalation reaction of cyclopropenes provides, in a single‐pot operation, two ω‐ene‐[1,1]‐bicyclopropyl ester derivatives. One regioisomer then undergoes a Pd‐catalyzed addition of aryl iodide to provide skipped dienes possessing several distant stereocenters including two congested quaternary carbon centers with excellent diastereoselectivity.
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Affiliation(s)
- Yogesh Siddaraju
- Schulich Faculty of Chemistry, Technion-, Israel Institute of Technology, Technion City, 3200009, Haifa, Israel
| | - Juliette Sabbatani
- Schulich Faculty of Chemistry, Technion-, Israel Institute of Technology, Technion City, 3200009, Haifa, Israel
| | - Anthony Cohen
- Schulich Faculty of Chemistry, Technion-, Israel Institute of Technology, Technion City, 3200009, Haifa, Israel
| | - Ilan Marek
- Schulich Faculty of Chemistry, Technion-, Israel Institute of Technology, Technion City, 3200009, Haifa, Israel
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10
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Wang Z, Gao P, Lin E, Li B. Stereodefined Skipped Dienes through Iridium‐Catalyzed Formal Addition of Tertiary Allylic C−H Bonds to Alkynes. Angew Chem Int Ed Engl 2022; 61:e202200075. [DOI: 10.1002/anie.202200075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Zi‐Xuan Wang
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Peng‐Chao Gao
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - En‐Ze Lin
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Bi‐Jie Li
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
- Beijing National Laboratory for Molecular Sciences Beijing 100190 China
- Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192 China
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11
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Siddaraju Y, Sabbatani J, Cohen A, Marek I. Preparation of Distant Quaternary Carbon Stereocenters by Double Selective Ring‐Opening of 1,1‐Biscyclopropyl Methanol Derivatives. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203652] [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)
| | | | - Anthony Cohen
- Technion Israel Institute of Technology Chemistry ISRAEL
| | - Ilan Marek
- Technion - Israel Institute of Technology Schulich Faculty of Chemistry Technion City 32000 Haifa ISRAEL
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12
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Wang Z, Gao P, Lin E, Li B. Stereodefined Skipped Dienes through Iridium‐Catalyzed Formal Addition of Tertiary Allylic C−H Bonds to Alkynes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zi‐Xuan Wang
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Peng‐Chao Gao
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - En‐Ze Lin
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Bi‐Jie Li
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
- Beijing National Laboratory for Molecular Sciences Beijing 100190 China
- Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192 China
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13
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Electrocatalytic Isomerization of Allylic Alcohols: Straightforward Preparation of β-Aryl-Ketones. Catalysts 2022. [DOI: 10.3390/catal12030333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Electrochemical synthesis has been rapidly developing over the past few years. Here, we report a practical and eco-friendly electrocatalytic isomerization of allylic alcohols to their corresponding carbonyl compounds. This reaction can be carried out in undivided cells without the addition of external chemical oxidants and metal catalysts. Moreover, this reaction features a broad substrate scope including challenging allylic alcohols bearing tri- and tetra-substituted olefins and affords straightforward access to diverse β-aryl-ketones. Mechanistic investigations suggest that the reactions proceed through a radical process. This study represents a unique example in which electrochemistry enables hydrogen atom transfer in organic allylic alcohol substrates using a simple organocatalyst.
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14
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Zhang XX, Zhang Y, Liao L, Gao Y, Su HEM, Yu JS. Catalytic Asymmetric Isomerization of (Homo)Allylic Alcohols: Recent Advances and Challenges. ChemCatChem 2022. [DOI: 10.1002/cctc.202200126] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xue-Xin Zhang
- East China Normal University Department of chemistry CHINA
| | - Ying Zhang
- East China Normal University Department of chemistry CHINA
| | - Ling Liao
- East China Normal University Department of chemistry CHINA
| | - Yang Gao
- East China Normal University Department of chemistry CHINA
| | | | - Jin-Sheng Yu
- East China Normal University Department of Chemistry Zhongshan Rd. 3663 N, 200062 Shanghai CHINA
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15
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Sai M. KOtBu/DMSO Catalytic System for Isomerization of Allylic Alcohols to Ketones. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Masahiro Sai
- Gifu University: Gifu Daigaku Department of Chemistry and Biomolecular Science 1-1 Yanagido 501-1193 Gifu JAPAN
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16
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Pandia BK, Pattanaik S, Gunanathan C. Manganese(I) catalyzed cross-coupling of secondary allylic alcohols and primary alcohols. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Biswal P, Samser S, Meher SK, Chandrasekhar V, Venkatasubbaiah K. Palladium‐Catalyzed Synthesis of α‐Methyl Ketones from Allylic Alcohols and Methanol. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101101] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Priyabrata Biswal
- School of Chemical Sciences National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI Bhubaneswar 752050 Odisha India
| | - Shaikh Samser
- School of Chemical Sciences National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI Bhubaneswar 752050 Odisha India
| | - Sushanta Kumar Meher
- School of Chemical Sciences National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI Bhubaneswar 752050 Odisha India
| | - Vadapalli Chandrasekhar
- Tata Institute of Fundamental Research Hyderabad Gopanpally Hyderabad 500 046 India
- Department of Chemistry Indian Institute of Technology Kanpur Kanpur 208016 India
| | - Krishnan Venkatasubbaiah
- School of Chemical Sciences National Institute of Science Education and Research (NISER) Bhubaneswar, HBNI Bhubaneswar 752050 Odisha India
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18
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Abstract
We here present a generally applicable cobalt-catalyzed remote hydroboration of alkenyl amines, providing a practical strategy for the preparation of borylamines and aminoalcohols. This method shows broad substrate scope and good functional group tolerance, tolerating a series of alkenyl amines, including alkyl-alkyl amines, alkyl-aryl amines, aryl-aryl amines, and amides. Of note, this protocol is also compatible with a variety of natural products and drug derivatives. Preliminary mechanistic studies suggest that this transformation involves an iterative chain walking and hydroboration sequence.
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Affiliation(s)
- Yaqin Lei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China
| | - Jiaxin Huang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China
| | - Wanxiang Zhao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, P. R. China
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19
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Suresh R, Massad I, Marek I. Stereoselective tandem iridium-catalyzed alkene isomerization-cope rearrangement of ω-diene epoxides: efficient access to acyclic 1,6-dicarbonyl compounds. Chem Sci 2021; 12:9328-9332. [PMID: 34349902 PMCID: PMC8278922 DOI: 10.1039/d1sc02575a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 06/03/2021] [Indexed: 01/05/2023] Open
Abstract
The Cope rearrangement of 2,3-divinyloxiranes, a rare example of epoxide C-C bond cleavage, results in 4,5-dihydrooxepines which are amenable to hydrolysis, furnishing 1,6-dicarbonyl compounds containing two contiguous stereocenters at the 3- and 4-positions. We employ an Ir-based alkene isomerization catalyst to form the reactive 2,3-divinyloxirane in situ with complete regio- and stereocontrol, which translates into excellent control over the stereochemistry of the resulting oxepines and ultimately to an attractive strategy towards 1,6-dicarbonyl compounds.
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Affiliation(s)
- Rahul Suresh
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology Technion City 3200009 Haifa Israel
| | - Itai Massad
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology Technion City 3200009 Haifa Israel
| | - Ilan Marek
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology Technion City 3200009 Haifa Israel
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20
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Sai M, Kurouchi H. Potassium Base‐Catalyzed Michael Additions of Allylic Alcohols to α,β‐Unsaturated Amides: Scope and Mechanistic Insights. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100272] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Masahiro Sai
- Department of Chemistry and Biomolecular Science Faculty of Engineering Gifu University 1-1 Yanagido Gifu 501-1193 Japan
- Research Foundation ITSUU Laboratory C1232 Kanagawa Science Park R & D Building 3-2-1 Sakado, Takatsu-ku Kawasaki Kanagawa 213-0012 Japan
| | - Hiroaki Kurouchi
- Research Foundation ITSUU Laboratory C1232 Kanagawa Science Park R & D Building 3-2-1 Sakado, Takatsu-ku Kawasaki Kanagawa 213-0012 Japan
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21
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Wang X, Liu F, Yan Z, Qiang Q, Huang W, Rong ZQ. Redox-Neutral Nickel-Catalyzed Cross-Coupling Reactions of (Homo)allylic Alcohols and Aryltriflates. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00951] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xuchao Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Inst-itute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, People’s Republic of China
| | - Feipeng Liu
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Inst-itute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, People’s Republic of China
| | - Zijuan Yan
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Inst-itute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, People’s Republic of China
| | - Qing Qiang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Inst-itute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, People’s Republic of China
| | - Wei Huang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Inst-itute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, People’s Republic of China
| | - Zi-Qiang Rong
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Inst-itute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi’an 710072, People’s Republic of China
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22
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Zhang L, Wang B, Zhao Y, Pu M, Liu S, Lei M. Using Bases as Initiators to Isomerize Allylic Alcohols: Insights from Density Functional Theory Studies. J Phys Chem A 2021; 125:2316-2323. [PMID: 33724037 DOI: 10.1021/acs.jpca.1c00404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Allylic alcohols, as common and readily available building blocks, could be converted into many widely used carbonyl compounds through isomerization reactions. However, these processes often involve expensive transition metal (TM) complexes as the catalyst. What is the bottleneck in the mechanism when no TM is used? In this study, density functional theory (DFT) was employed to explore the mechanistic patterns of allylic alcohols catalyzed using bases, such as KOH, NaOH, LiOH, tBuOK, tBuONa, tBuOLi, 1,5,7-triazabicyclo[4.4.0]dec-5-ene, 1,3,4,6,7,8-hexahydro-1-methyl-2H-pyrimido[1,2-a]pyrimidine, and 1,8-diazabicyclo[5.4.0]undec-7-ene. Our results show that bases containing metal cations follow the metal cation-assisted (MCA) mechanism, whereas organic bases without metal cations follow the ion pair-assisted (IPA) mechanism. The catalytic efficiency of bases containing metal cations is higher than that of bases without metal cations, indicating that metal cations play an important role in the reaction. Additionally, the modulation of substituents R1 and R2 in the substrate reveals that electron-withdrawing groups are favorable for C-H bond cleavage, and electron-donating groups are favorable for hydrogen transfer. To better understand these patterns, we applied the DFT and information-theoretic approach (ITA) to examine the impact of bases and substrate substituents on the reactivity of allylic alcohol isomerization. This work should provide a much-needed theoretical guidance to design better non-TM catalysts for the isomerization of allylic alcohols and their derivatives.
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Affiliation(s)
- Lin Zhang
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Bin Wang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Yaqi Zhao
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Min Pu
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Shubin Liu
- Research Computing Center, University of North Carolina, Chapel Hill, North Carolina 27599-3420, United States
| | - Ming Lei
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
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23
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Samser S, Biswal P, Meher SK, Venkatasubbaiah K. Palladium mediated one-pot synthesis of 3-aryl-cyclohexenones and 1,5-diketones from allyl alcohols and aryl ketones. Org Biomol Chem 2021; 19:1386-1394. [PMID: 33481973 DOI: 10.1039/d0ob02515a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One-pot synthesis of Robinson annulated 3-aryl-cyclohexenones from allyl alcohols and ketones using palladium is reported. Long chain aliphatic or aryl substitutions at the C1 position of allyl alcohol result in the formation of 1,5-diketone products. This simple one-pot method avoids the use of highly electrophilic vinyl ketones.
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Affiliation(s)
- Shaikh Samser
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar 752050, Odisha, India.
| | - Priyabrata Biswal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar 752050, Odisha, India.
| | - Sushanta Kumar Meher
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar 752050, Odisha, India.
| | - Krishnan Venkatasubbaiah
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar 752050, Odisha, India.
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24
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Fiorito D, Scaringi S, Mazet C. Transition metal-catalyzed alkene isomerization as an enabling technology in tandem, sequential and domino processes. Chem Soc Rev 2021; 50:1391-1406. [DOI: 10.1039/d0cs00449a] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
One-pot reactions based on catalytic isomerization of alkenes not only offer the inherent advantages of atom-, step- and redox-economy but also enable the preparation of value-added products that would be difficult to access by conventional methods.
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Affiliation(s)
- Daniele Fiorito
- Organic Chemistry Department
- University of Geneva
- Geneva 1211
- Switzerland
| | - Simone Scaringi
- Organic Chemistry Department
- University of Geneva
- Geneva 1211
- Switzerland
| | - Clément Mazet
- Organic Chemistry Department
- University of Geneva
- Geneva 1211
- Switzerland
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25
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Wu H, Margarita C, Jongcharoenkamol J, Nolan MD, Singh T, Andersson PG. Kinetic resolution of racemic allylic alcohols via iridium-catalyzed asymmetric hydrogenation: scope, synthetic applications and insight into the origin of selectivity. Chem Sci 2020; 12:1937-1943. [PMID: 34163958 PMCID: PMC8179068 DOI: 10.1039/d0sc05276k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Asymmetric hydrogenation is one of the most commonly used tools in organic synthesis, whereas, kinetic resolution via asymmetric hydrogenation is less developed. Herein, we describe the first iridium catalyzed kinetic resolution of a wide range of trisubstituted secondary and tertiary allylic alcohols. Large selectivity factors were observed in most cases (s up to 211), providing the unreacted starting materials in good yield with high levels of enantiopurity (ee up to >99%). The utility of this method is highlighted in the enantioselective formal synthesis of some bioactive natural products including pumiliotoxin A, inthomycin A and B. DFT studies and a selectivity model concerning the origin of selectivity are presented. Asymmetric hydrogenation is one of the most commonly used tools in organic synthesis, whereas, kinetic resolution via asymmetric hydrogenation was less developed.![]()
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Affiliation(s)
- Haibo Wu
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory 106 91 Stockholm Sweden
| | - Cristiana Margarita
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory 106 91 Stockholm Sweden
| | - Jira Jongcharoenkamol
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory 106 91 Stockholm Sweden
| | - Mark D Nolan
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory 106 91 Stockholm Sweden
| | - Thishana Singh
- School of Chemistry and Physics, University of Kwazulu-Natal Private Bag X54001 Durban 4000 South Africa
| | - Pher G Andersson
- Department of Organic Chemistry, Stockholm University, Arrhenius Laboratory 106 91 Stockholm Sweden .,School of Chemistry and Physics, University of Kwazulu-Natal Private Bag X54001 Durban 4000 South Africa
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26
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Li M, Sanz‐Marco A, Martinez‐Erro S, García‐Vázquez V, Mai BK, Fernández‐Gallardo J, Himo F, Martín‐Matute B. Unraveling the Mechanism of the Ir III -Catalyzed Regiospecific Synthesis of α-Chlorocarbonyl Compounds from Allylic Alcohols. Chemistry 2020; 26:14978-14986. [PMID: 32757212 PMCID: PMC7756427 DOI: 10.1002/chem.202002845] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 07/19/2020] [Indexed: 01/02/2023]
Abstract
We have used experimental studies and DFT calculations to investigate the IrIII -catalyzed isomerization of allylic alcohols into carbonyl compounds, and the regiospecific isomerization-chlorination of allylic alcohols into α-chlorinated carbonyl compounds. The mechanism involves a hydride elimination followed by a migratory insertion step that may take place at Cβ but also at Cα with a small energy-barrier difference of 1.8 kcal mol-1 . After a protonation step, calculations show that the final tautomerization can take place both at the Ir center and outside the catalytic cycle. For the isomerization-chlorination reaction, calculations show that the chlorination step takes place outside the cycle with an energy barrier much lower than that for the tautomerization to yield the saturated ketone. All the energies in the proposed mechanism are plausible, and the cycle accounts for the experimental observations.
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Affiliation(s)
- Man Li
- Department of Organic ChemistryStockholm University10691StockholmSweden
| | - Amparo Sanz‐Marco
- Department of Organic ChemistryStockholm University10691StockholmSweden
| | | | | | - Binh Khanh Mai
- Department of Organic ChemistryStockholm University10691StockholmSweden
| | | | - Fahmi Himo
- Department of Organic ChemistryStockholm University10691StockholmSweden
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27
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Xu S, Hirano K, Miura M. Pd-Catalyzed Regioselective C–H Alkenylation and Alkynylation of Allylic Alcohols with the Assistance of a Bidentate Phenanthroline Auxiliary. Org Lett 2020; 22:9059-9064. [DOI: 10.1021/acs.orglett.0c03444] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Shibo Xu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masahiro Miura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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28
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Massad I, Sommer H, Marek I. Stereoselective Access to Fully Substituted Aldehyde-Derived Silyl Enol Ethers by Iridium-Catalyzed Alkene Isomerization. Angew Chem Int Ed Engl 2020; 59:15549-15553. [PMID: 32392394 DOI: 10.1002/anie.202005058] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 05/10/2020] [Indexed: 11/06/2022]
Abstract
An in situ generated cationic Ir-catalyst isomerizes simple allylic silyl ethers into valuable, fully substituted aldehyde-derived silyl enol ethers. Importantly, by judicious choice of substrate, either of the two possible stereoisomers of a given enolate derivative is accessible with complete stereoselectivity. One-pot isomerization-aldol and isomerization-allylation processes illustrate the synthetic utility of this method.
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Affiliation(s)
- Itai Massad
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa, 3200009, Israel
| | - Heiko Sommer
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa, 3200009, Israel
| | - Ilan Marek
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa, 3200009, Israel
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29
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Lombardi L, Bellini D, Bottoni A, Calvaresi M, Monari M, Kovtun A, Palermo V, Melucci M, Bandini M. Allylic and Allenylic Dearomatization of Indoles Promoted by Graphene Oxide by Covalent Grafting Activation Mode. Chemistry 2020; 26:10427-10432. [PMID: 32346922 DOI: 10.1002/chem.202001373] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Indexed: 12/14/2022]
Abstract
The site-selective allylative and allenylative dearomatization of indoles with alcohols was performed under carbocatalytic regime in the presence of graphene oxide (GO, 10 wt % loading) as the promoter. Metal-free conditions, absence of stoichiometric additive, environmentally friendly conditions (H2 O/CH3 CN, 55 °C, 6 h), broad substrate scope (33 examples, yield up to 92 %) and excellent site- and stereoselectivity characterize the present methodology. Moreover, a covalent activation model exerted by GO functionalities was corroborated by spectroscopic, experimental and computational evidences. Recovering and regeneration of the GO catalyst through simple acidic treatment was also documented.
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Affiliation(s)
- Lorenzo Lombardi
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Daniele Bellini
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Andrea Bottoni
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Matteo Calvaresi
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Magda Monari
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, via Selmi 2, 40126, Bologna, Italy
| | - Alessandro Kovtun
- Istituto per la Sintesi Organica e Fotoreattività (ISOF)-CNR, via Gobetti 101, 40129, Bologna, Italy
| | - Vincenzo Palermo
- Istituto per la Sintesi Organica e Fotoreattività (ISOF)-CNR, via Gobetti 101, 40129, Bologna, Italy
- Chalmers University of Technology, Industrial and Materials Science, Hörsalsvägen 7A, 412 96, Goteborg, Sweden
| | - Manuela Melucci
- Istituto per la Sintesi Organica e Fotoreattività (ISOF)-CNR, via Gobetti 101, 40129, Bologna, Italy
| | - Marco Bandini
- Dipartimento di Chimica "Giacomo Ciamician", Alma Mater Studiorum-Università di Bologna, via Selmi 2, 40126, Bologna, Italy
- Consorzio C.I.N.M.P.I.S., via Selmi 2, 40126, Bologna, Italy
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30
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Guo K, Zhang Z, Li A, Li Y, Huang J, Yang Z. Photoredox-Catalyzed Isomerization of Highly Substituted Allylic Alcohols by C-H Bond Activation. Angew Chem Int Ed Engl 2020; 59:11660-11668. [PMID: 32281730 DOI: 10.1002/anie.202000743] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Indexed: 12/15/2022]
Abstract
Photoredox-catalyzed isomerization of γ-carbonyl-substituted allylic alcohols to their corresponding carbonyl compounds was achieved for the first time by C-H bond activation. This catalytic redox-neutral process resulted in the synthesis of 1,4-dicarbonyl compounds. Notably, allylic alcohols bearing tetrasubstituted olefins can also be transformed into their corresponding carbonyl compounds. Density functional theory calculations show that the carbonyl group at the γ-position of allylic alcohols are beneficial to the formation of their corresponding allylic alcohol radicals with high vertical electron affinity, which contributes to the completion of the photoredox catalytic cycle.
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Affiliation(s)
- Kai Guo
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Zhongchao Zhang
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Anding Li
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Yuanhe Li
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, P. R. China
| | - Jun Huang
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China
| | - Zhen Yang
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, P. R. China
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS), Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, 100871, P. R. China
- Shenzhen Bay laboratory, Shenzhen, 518055, P. R. China
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31
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Cabré A, Garçon M, Gallen A, Grisoni L, Grabulosa A, Verdaguer X, Riera A. Iridium‐Catalyzed Asymmetric Isomerization of Primary Allylic Alcohols Using MaxPHOX Ligands: Experimental and Theoretical Study. ChemCatChem 2020. [DOI: 10.1002/cctc.202000442] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Albert Cabré
- Institute of Research in Biomedicine (IRB Barcelona) The Barcelona Institute of Science and Technology Baldiri Reixac 10 Barcelona 08028 Spain
- Departament de Química Inorgànica i Orgànica Secció Orgànica Universitat de Barcelona Martí i Franquès 1 Barcelona 08028 Spain
| | - Martí Garçon
- Institute of Research in Biomedicine (IRB Barcelona) The Barcelona Institute of Science and Technology Baldiri Reixac 10 Barcelona 08028 Spain
- Departament de Química Inorgànica i Orgànica Secció Orgànica Universitat de Barcelona Martí i Franquès 1 Barcelona 08028 Spain
| | - Albert Gallen
- Departament de Química Inorgànica i Orgànica Secció Inorgànica Universitat de Barcelona Martí i Franquès 1 Barcelona 08028 Spain
| | - Lorenzo Grisoni
- Institute of Research in Biomedicine (IRB Barcelona) The Barcelona Institute of Science and Technology Baldiri Reixac 10 Barcelona 08028 Spain
| | - Arnald Grabulosa
- Departament de Química Inorgànica i Orgànica Secció Inorgànica Universitat de Barcelona Martí i Franquès 1 Barcelona 08028 Spain
- Institut de Nanociència i Nanotecnologia (IN2UB) Universitat de Barcelona Barcelona 08028 Spain
| | - Xavier Verdaguer
- Institute of Research in Biomedicine (IRB Barcelona) The Barcelona Institute of Science and Technology Baldiri Reixac 10 Barcelona 08028 Spain
- Departament de Química Inorgànica i Orgànica Secció Orgànica Universitat de Barcelona Martí i Franquès 1 Barcelona 08028 Spain
| | - Antoni Riera
- Institute of Research in Biomedicine (IRB Barcelona) The Barcelona Institute of Science and Technology Baldiri Reixac 10 Barcelona 08028 Spain
- Departament de Química Inorgànica i Orgànica Secció Orgànica Universitat de Barcelona Martí i Franquès 1 Barcelona 08028 Spain
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32
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Massad I, Sommer H, Marek I. Stereoselective Access to Fully Substituted Aldehyde‐Derived Silyl Enol Ethers by Iridium‐Catalyzed Alkene Isomerization. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Itai Massad
- Schulich Faculty of Chemistry Technion—Israel Institute of Technology Technion City Haifa 3200009 Israel
| | - Heiko Sommer
- Schulich Faculty of Chemistry Technion—Israel Institute of Technology Technion City Haifa 3200009 Israel
| | - Ilan Marek
- Schulich Faculty of Chemistry Technion—Israel Institute of Technology Technion City Haifa 3200009 Israel
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33
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Ho GM, Segura L, Marek I. Ru-catalyzed isomerization of ω-alkenylboronates towards stereoselective synthesis of vinylboronates with subsequent in situ functionalization. Chem Sci 2020; 11:5944-5949. [PMID: 34094086 PMCID: PMC8159340 DOI: 10.1039/d0sc02542a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The stereoselective preparation of synthetically versatile vinylboronates from ω-alkenylboronates is achieved through a ruthenium-catalyzed isomerization reaction. A variety of di- and trisubstituted vinylboronates were conveniently produced and could be used as a new starting point for subsequent in situ remote functionalization through either a sequential Ru/Pd or Ru/Cu double catalytic system. A regio- and stereoselective ruthenium-catalyzed isomerization of ω-alkenyl boronates into stereodefined di- and trisubstituted alkenylboronate derivatives is reported.![]()
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Affiliation(s)
- Guo-Ming Ho
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology Technion City 3200009 Haifa Israel
| | - Lucas Segura
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology Technion City 3200009 Haifa Israel
| | - Ilan Marek
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology Technion City 3200009 Haifa Israel
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34
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Guo K, Zhang Z, Li A, Li Y, Huang J, Yang Z. Photoredox‐Catalyzed Isomerization of Highly Substituted Allylic Alcohols by C−H Bond Activation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kai Guo
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics Peking University Shenzhen Graduate School Shenzhen 518055 P. R. China
| | - Zhongchao Zhang
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics Peking University Shenzhen Graduate School Shenzhen 518055 P. R. China
| | - Anding Li
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics Peking University Shenzhen Graduate School Shenzhen 518055 P. R. China
| | - Yuanhe Li
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS) Peking-Tsinghua Center for Life Sciences Peking University Beijing 100871 P. R. China
| | - Jun Huang
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics Peking University Shenzhen Graduate School Shenzhen 518055 P. R. China
| | - Zhen Yang
- State Key Laboratory of Chemical Oncogenomics and Key Laboratory of Chemical Genomics Peking University Shenzhen Graduate School Shenzhen 518055 P. R. China
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education and Beijing National Laboratory for Molecular Science (BNLMS) Peking-Tsinghua Center for Life Sciences Peking University Beijing 100871 P. R. China
- Shenzhen Bay laboratory Shenzhen 518055 P. R. China
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35
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Catalytic Regioselective Isomerization of 2,2‐Disubstituted Oxetanes to Homoallylic Alcohols. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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36
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Cabré A, Rafael S, Sciortino G, Ujaque G, Verdaguer X, Lledós A, Riera A. Catalytic Regioselective Isomerization of 2,2-Disubstituted Oxetanes to Homoallylic Alcohols. Angew Chem Int Ed Engl 2020; 59:7521-7527. [PMID: 31981390 DOI: 10.1002/anie.201915772] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/24/2020] [Indexed: 12/27/2022]
Abstract
The selective isomerization of strained heterocyclic compounds is an important tool in organic synthesis. An unprecedented regioselective isomerization of 2,2-disubstituted oxetanes into homoallylic alcohols is described. The use of tris(pentafluorophenyl)borane (B(C6 F5 )3 ), a commercially available Lewis acid was key to obtaining good yields and selectivities since other Lewis acids afforded mixtures of isomers and substantial polymerization. The reaction took place under exceptionally mild reaction conditions and very low catalyst loading (0.5 mol %). DFT calculations disclose the mechanistic features of the isomerization and account for the high selectivity displayed by the B(C6 F5 )3 catalyst. The synthetic applicability of the new reaction is demonstrated by the preparation of γ-chiral alcohols using iridium-catalyzed asymmetric hydrogenation.
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Affiliation(s)
- Albert Cabré
- Institute of Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028, Barcelona, Spain.,Departament de Química Inorgànica i Orgànica, Secció Orgànica, Universitat de Barcelona, Martí i Franquès 1, 08028, Barcelona, Spain
| | - Sergi Rafael
- Departament de Química Inorgànica i Orgànica, Secció Orgànica, Universitat de Barcelona, Martí i Franquès 1, 08028, Barcelona, Spain
| | - Giuseppe Sciortino
- Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain.,Dipartimento di Chimica e Farmacia, Università di Sassari, Via Vienna 2, 07100, Sassari, Italy
| | - Gregori Ujaque
- Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Xavier Verdaguer
- Institute of Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028, Barcelona, Spain.,Departament de Química Inorgànica i Orgànica, Secció Orgànica, Universitat de Barcelona, Martí i Franquès 1, 08028, Barcelona, Spain
| | - Agustí Lledós
- Departament de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Antoni Riera
- Institute of Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028, Barcelona, Spain.,Departament de Química Inorgànica i Orgànica, Secció Orgànica, Universitat de Barcelona, Martí i Franquès 1, 08028, Barcelona, Spain
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37
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Liu Y, Mazet C. A Catalytic Dual Isomerization/Allylboration Sequence for the Stereoselective Construction of Congested Secondary Homoallylic Alcohols. J Org Chem 2020; 85:5638-5650. [PMID: 32212727 DOI: 10.1021/acs.joc.0c00565] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A catalytic sequence for the diastereo- and enantioselective preparation of homoallylic alcohols with an adjacent quaternary (stereo)center is reported. The one-pot process relies on the use of a single (achiral or chiral) iridium complex to catalyze the concomitant isomerization of primary allylic alcohols and homoallylboronates into (chiral) aldehydes and allylboronates, respectively. In the same flask, a chiral Brønsted acid is added next to engage the isomerization products into a stereocontrolled allylboration reaction. Structural variations have been performed on both the allylic alcohols and the homoallylboronates. This mild process affords an array of stereochemically congested and complex chiral secondary homoallylic alcohols in high yield, excellent diastereoselectivity, and usually high enantioselectivity.
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Affiliation(s)
- Yangbin Liu
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Clément Mazet
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
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38
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Gao W, Zhang X, Xie X, Ding S. One simple Ir/hydrosilane catalytic system for chemoselective isomerization of 2-substituted allylic ethers. Chem Commun (Camb) 2020; 56:2012-2015. [PMID: 31961351 DOI: 10.1039/c9cc09055j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, we describe one simple Ir/hydrosilane catalytic system for chemoselective isomerization of 2-substituted allylic ethers. This facile strategy shows high efficiency towards a variety of substrates, including derivatives from bioactive molecules. The substituent at the α position of the olefins is supposed to be critical in retarding the alkene hydrosilylation process and leading the reaction to go through the isomerization pathway.
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Affiliation(s)
- Weiwei Gao
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
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39
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Meng K, Sun Y, Zhang J, Zhang K, Ji X, Ding L, Zhong G. Iridium-Catalyzed Cross-Coupling Reactions of Alkenes by Hydrogen Transfer. Org Lett 2019; 21:8219-8224. [PMID: 31589451 DOI: 10.1021/acs.orglett.9b02935] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A range of Ru-, Rh-, or Pd-catalyzed vinylic C-H/C-H cross-coupling reactions of olefins have been demonstrated to provide 1,3-dienes, using a quantitative amount of metal oxidants. Although transfer hydrogenation and C-H alkenylation are two important areas that evolved independently, we herein report the first iridium-catalyzed cross-coupling reactions of alkenes by integration of directed C(alkenyl)-H alkenylation and transfer hydrogenation to obviate the usage of a metal oxidant, employing a hydrogen acceptor such as inexpensive chloranil.
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Affiliation(s)
- Keke Meng
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , China
| | - Yaling Sun
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , China
| | - Jian Zhang
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , China
| | - Kaiyun Zhang
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , China
| | - Xiaohui Ji
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , China
| | - Liyuan Ding
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , China
| | - Guofu Zhong
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , China
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40
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Romano C, Fiorito D, Mazet C. Remote Functionalization of α,β-Unsaturated Carbonyls by Multimetallic Sequential Catalysis. J Am Chem Soc 2019; 141:16983-16990. [DOI: 10.1021/jacs.9b09373] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Ciro Romano
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Daniele Fiorito
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Clément Mazet
- Department of Organic Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva, Switzerland
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41
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Latham DE, Polidano K, Williams JMJ, Morrill LC. One-Pot Conversion of Allylic Alcohols to α-Methyl Ketones via Iron-Catalyzed Isomerization-Methylation. Org Lett 2019; 21:7914-7918. [PMID: 31536370 PMCID: PMC7007281 DOI: 10.1021/acs.orglett.9b02900] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Indexed: 11/28/2022]
Abstract
A one-pot iron-catalyzed conversion of allylic alcohols to α-methyl ketones has been developed. This isomerization-methylation strategy utilized a (cyclopentadienone)iron(0) carbonyl complex as precatalyst and methanol as the C1 source. A diverse range of allylic alcohols undergoes isomerization-methylation to form α-methyl ketones in good isolated yields (up to 84% isolated yield).
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Affiliation(s)
- Daniel E. Latham
- Cardiff Catalysis
Institute, School of Chemistry, Cardiff
University, Main Building,
Park Place, Cardiff, CF10 3AT, U.K.
| | - Kurt Polidano
- Cardiff Catalysis
Institute, School of Chemistry, Cardiff
University, Main Building,
Park Place, Cardiff, CF10 3AT, U.K.
| | | | - Louis C. Morrill
- Cardiff Catalysis
Institute, School of Chemistry, Cardiff
University, Main Building,
Park Place, Cardiff, CF10 3AT, U.K.
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42
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Molloy JJ, Morack T, Gilmour R. Positional and Geometrical Isomerisation of Alkenes: The Pinnacle of Atom Economy. Angew Chem Int Ed Engl 2019; 58:13654-13664. [PMID: 31233259 DOI: 10.1002/anie.201906124] [Citation(s) in RCA: 152] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Indexed: 12/13/2022]
Abstract
Strategies to achieve spatiotemporal regulation of pre-existing alkenes via external stimuli are essential given the ubiquity of feedstock olefins in chemistry and their downstream applications. Mirroring the 1-0 switch that underpins mammalian vision through selective geometric isomerisation in retinal, strategies to manipulate 2D space by both geometric and positional isomerisation of alkenes via chemical, thermal and light-driven processes are being intensively pursued. This minireview highlights the current state of the art in activating and achieving directionality in these fundamental chemical transformations.
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Affiliation(s)
- John J Molloy
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Tobias Morack
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
| | - Ryan Gilmour
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149, Münster, Germany
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43
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Molloy JJ, Morack T, Gilmour R. Positionelle und geometrische Isomerisierung von Alkenen: der Gipfel der Atomökonomie. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906124] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- John J. Molloy
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Tobias Morack
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Ryan Gilmour
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
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44
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Farshadfar K, Chipman A, Hosseini M, Yates BF, Ariafard A. A Modified Cationic Mechanism for PdCl2-Catalyzed Transformation of a Homoallylic Alcohol to an Allyl Ether. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00276] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kaveh Farshadfar
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran 1469669191, Iran
| | - Antony Chipman
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, TAS 7001, Australia
| | - Mahdieh Hosseini
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran 1469669191, Iran
| | - Brian F. Yates
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, TAS 7001, Australia
| | - Alireza Ariafard
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran 1469669191, Iran
- School of Natural Sciences (Chemistry), University of Tasmania, Private Bag 75, Hobart, TAS 7001, Australia
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45
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Cabré A, Cabezas‐Giménez J, Sciortino G, Ujaque G, Verdaguer X, Lledós A, Riera A. Mild Iridium‐Catalysed Isomerization of Epoxides. Computational Insights and Application to the Synthesis of β‐Alkyl Amines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900372] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Albert Cabré
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Orgànica.Universitat de Barcelona Martí i Franquès 1 Barcelona E-08028 Spain
| | - Juanjo Cabezas‐Giménez
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Orgànica.Universitat de Barcelona Martí i Franquès 1 Barcelona E-08028 Spain
| | - Giuseppe Sciortino
- Departament de Química, Edifici C.n.Universitat Autònoma de Barcelona Cerdanyola del Vallès 08193 Spain
- Dipt. di Chimica e FarmaciaUniversità di Sassari, via Vienna 2 I-07017 Sassari Italy
| | - Gregori Ujaque
- Departament de Química, Edifici C.n.Universitat Autònoma de Barcelona Cerdanyola del Vallès 08193 Spain
| | - Xavier Verdaguer
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Orgànica.Universitat de Barcelona Martí i Franquès 1 Barcelona E-08028 Spain
| | - Agustí Lledós
- Departament de Química, Edifici C.n.Universitat Autònoma de Barcelona Cerdanyola del Vallès 08193 Spain
| | - Antoni Riera
- Institute for Research in Biomedicine (IRB Barcelona), Baldiri Reixac 10 08028 Barcelona Spain
- Departament de Química Inorgànica i Orgànica, Secció Orgànica.Universitat de Barcelona Martí i Franquès 1 Barcelona E-08028 Spain
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46
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Francos J, Cadierno V. The chemistry of guanidinate complexes of the platinum group metals. Dalton Trans 2019; 48:9021-9036. [PMID: 31120072 DOI: 10.1039/c9dt01289c] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this Perspective article, recent advances in the chemistry of platinum group metal complexes containing mono- and dianionic guanidinate ligands, i.e. [(RN)2C-NR2]- and [(RN)2C[double bond, length as m-dash]NR]2-, respectively, are presented. Synthetic and structural aspects, reactivity studies, and applications of these compounds are discussed.
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Affiliation(s)
- Javier Francos
- Laboratorio de Compuestos Organometálicos y Catálisis (Unidad Asociada al CSIC), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Departamento de Química Orgánica e Inorgánica, IUQOEM, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain.
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47
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Spiegelberg B, Dell'Acqua A, Xia T, Spannenberg A, Tin S, Hinze S, de Vries JG. Additive-Free Isomerization of Allylic Alcohols to Ketones with a Cobalt PNP Pincer Catalyst. Chemistry 2019; 25:7820-7825. [PMID: 30973658 DOI: 10.1002/chem.201901148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Indexed: 11/06/2022]
Abstract
Catalytic isomerization of allylic alcohols in ethanol as a green solvent was achieved by using air and moisture stable cobalt (II) complexes in the absence of any additives. Under mild conditions, the cobalt PNP pincer complex substituted with phenyl groups on the phosphorus atoms appeared to be the most active. High rates were obtained at 120 °C, even though the addition of one equivalent of base increases the speed of the reaction drastically. Although some evidence was obtained supporting a dehydrogenation-hydrogenation mechanism, it was proven that this is not the major mechanism. Instead, the cobalt hydride complex formed by dehydrogenation of ethanol is capable of double-bond isomerization through alkene insertion-elimination.
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Affiliation(s)
- Brian Spiegelberg
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Andrea Dell'Acqua
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Tian Xia
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Sergey Tin
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Sandra Hinze
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Johannes G de Vries
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
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48
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Pembere AM, Cui C, Wu H, Luo Z. Small gold clusters catalyzing oxidant-free dehydrogenation of glycerol initiated by methene hydrogen atom transfer. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.12.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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49
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Sommer H, Weissbrod T, Marek I. A Tandem Iridium-Catalyzed "Chain-Walking"/Cope Rearrangement Sequence. ACS Catal 2019; 9:2400-2406. [PMID: 32953237 PMCID: PMC7493306 DOI: 10.1021/acscatal.9b00118] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 01/30/2019] [Indexed: 12/17/2022]
Abstract
An iridium-catalyzed tandem olefin migration/Cope rearrangement of alkenyl ω-ene cyclopropanes is reported. By this means, a variety of complex annulenes are obtained as single diastereomers starting from cyclopropyl ester derived from simple 1,ω-dienes and alkenyldiazo compounds. Long-range olefin migration over up to 10 positions could be realized and coupled with an efficient Cope rearrangement to yield valuable scaffolds. Various functional groups are well-tolerated, giving rise to densely functionalized products. Furthermore, the present methodology could be successfully extended to yield bicyclic cycloheptenones starting from readily available alkenyl cyclopropanols via a Kulinkovich reaction.
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Affiliation(s)
- Heiko Sommer
- Schulich Faculty of Chemistry, Technion—Israel Institute of Technology, Technion City, Haifa, 32000, Israel
| | - Tal Weissbrod
- Schulich Faculty of Chemistry, Technion—Israel Institute of Technology, Technion City, Haifa, 32000, Israel
| | - Ilan Marek
- Schulich Faculty of Chemistry, Technion—Israel Institute of Technology, Technion City, Haifa, 32000, Israel
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50
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Xia T, Spiegelberg B, Wei Z, Jiao H, Tin S, Hinze S, de Vries JG. Manganese PNP-pincer catalyzed isomerization of allylic/homo-allylic alcohols to ketones – activity, selectivity, efficiency. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01502g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Manganese PNP pincer complexes are excellent catalysts for the isomerization of allylic alcohols to the ketones. The reaction proceeds via a dehydrogenation/hydrogenation mechanism as shown by DFT calculations and deuterium labelling.
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Affiliation(s)
- Tian Xia
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Brian Spiegelberg
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Zhihong Wei
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Haijun Jiao
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Sergey Tin
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Sandra Hinze
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
| | - Johannes G. de Vries
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
- 18059 Rostock
- Germany
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