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Dong X, Klein M, Waldvogel SR, Morandi B. Controlling Selectivity in Shuttle Hetero-difunctionalization Reactions: Electrochemical Transfer Halo-thiolation of Alkynes. Angew Chem Int Ed Engl 2023; 62:e202213630. [PMID: 36336662 PMCID: PMC10107926 DOI: 10.1002/anie.202213630] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 11/09/2022]
Abstract
Shuttle hetero-difunctionalization reaction, in which two chemically distinct functional groups are transferred between two molecules, has long been an unmet goal due to the daunting challenges in controlling the chemo-, regio-, and stereoselectivity. Herein, we disclose an electrochemistry enabled shuttle reaction (e-shuttle) to selectively transfer one RS- and one X- group between β-halosulfides and unsaturated hydrocarbons via a consecutive paired electrolysis mechanism. The preferential anodic oxidation of one anion over the other, which is controlled by their distinct redox potentials, plays a pivotal role in controlling the high chemoselectivity of the process. This easily scalable methodology enables the construction of a myriad of densely functionalized β-halo alkenyl sulfides in unprecedented chemo-, regio-, and stereoselectivity using benign surrogates, e.g., 2-bromoethyl sulfide, avoiding the handling of corrosive and oxidative RS-Br reagents. In a broader context, these results open up new strategies for selective shuttle difunctionalization reactions.
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Affiliation(s)
- Xichang Dong
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland
| | - Martin Klein
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Siegfried R Waldvogel
- Department of Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Bill Morandi
- Laboratorium für Organische Chemie, ETH Zürich, Vladimir-Prelog-Weg 3, HCI, 8093, Zürich, Switzerland
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2
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Zheng Z, Ma X, Cheng X, Zhao K, Gutman K, Li T, Zhang L. Homogeneous Gold-Catalyzed Oxidation Reactions. Chem Rev 2021; 121:8979-9038. [DOI: 10.1021/acs.chemrev.0c00774] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Zhitong Zheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Xu Ma
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Xinpeng Cheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Ke Zhao
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Kaylaa Gutman
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Tianyou Li
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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3
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Affiliation(s)
- Tao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, No. 620 West Chang’an Avenue, Xi’an 710119, China
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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4
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Bhunia S, Ghosh P, Patra SR. Gold‐Catalyzed Oxidative Alkyne Functionalization by N−O/S−O/C−O Bond Oxidants. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000274] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sabyasachi Bhunia
- Department of Chemistry Central University of Jharkhand Ranchi Jharkhand 835205 India
| | - Partha Ghosh
- Department of Chemistry Central University of Jharkhand Ranchi Jharkhand 835205 India
| | - Snigdha Rani Patra
- Department of Chemistry Central University of Jharkhand Ranchi Jharkhand 835205 India
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5
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Sadhukhan S, Baire B. An Unprecedented (Semi)Favorskii Rearrangement. Evidence for the 2-(Acyloxy)cyclopropanones. Org Lett 2018; 20:1748-1751. [DOI: 10.1021/acs.orglett.8b00218] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Santu Sadhukhan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamilnadu 600036, India
| | - Beeraiah Baire
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamilnadu 600036, India
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6
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Jónsson HF, Evjen S, Fiksdahl A. Gold(I)-Catalyzed [2 + 2 + 2] Cyclotrimerization of 1,3-Diarylpropargyl Acetals. Org Lett 2017; 19:2202-2205. [DOI: 10.1021/acs.orglett.7b00411] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Helgi Freyr Jónsson
- Department of Chemistry, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - Sigvart Evjen
- Department of Chemistry, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
| | - Anne Fiksdahl
- Department of Chemistry, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
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7
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Lonca GH, Tejo C, Chan HL, Chiba S, Gagosz F. Gold(i)-catalyzed 6-endo-dig azide–yne cyclization: efficient access to 2H-1,3-oxazines. Chem Commun (Camb) 2017; 53:736-739. [DOI: 10.1039/c6cc08397h] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Denitrogenative 6-endo-dig azide–yne cyclization of α-propargyloxy-β-haloalkylazides was enabled by gold catalysis, thus providing 2H-1,3-oxazines.
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Affiliation(s)
- Geoffroy Hervé Lonca
- Département de Chimie
- UMR 7652 and 7653 CNRS
- Ecole Polytechnique
- 91128 Palaiseau
- France
| | - Ciputra Tejo
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Hui Ling Chan
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Shunsuke Chiba
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Fabien Gagosz
- Département de Chimie
- UMR 7652 and 7653 CNRS
- Ecole Polytechnique
- 91128 Palaiseau
- France
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8
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Jin H, Tian B, Song X, Xie J, Rudolph M, Rominger F, Hashmi ASK. Gold-katalysierte Synthese von Chinolinen aus Propargylsilylethern und Anthranilen über die Umpolung eines Goldcarben-Kohlenstoffatoms. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606043] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Hongming Jin
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270, 6 9120 Heidelberg Deutschland
| | - Bin Tian
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270, 6 9120 Heidelberg Deutschland
| | - Xinlong Song
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270, 6 9120 Heidelberg Deutschland
| | - Jin Xie
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270, 6 9120 Heidelberg Deutschland
| | - Matthias Rudolph
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270, 6 9120 Heidelberg Deutschland
| | - Frank Rominger
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270, 6 9120 Heidelberg Deutschland
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270, 6 9120 Heidelberg Deutschland
- Chemistry Department, Faculty of Science; King Abdulaziz University (KAU); 21589 Jeddah Saudi-Arabien
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9
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Jin H, Tian B, Song X, Xie J, Rudolph M, Rominger F, Hashmi ASK. Gold-Catalyzed Synthesis of Quinolines from Propargyl Silyl Ethers and Anthranils through the Umpolung of a Gold Carbene Carbon. Angew Chem Int Ed Engl 2016; 55:12688-92. [DOI: 10.1002/anie.201606043] [Citation(s) in RCA: 170] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Hongming Jin
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Bin Tian
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Xinlong Song
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Jin Xie
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department, Faculty of Science; King Abdulaziz University (KAU); 21589 Jeddah Saudi Arabia
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10
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Jia M, Ma S. New Approaches to the Synthesis of Metal Carbenes. Angew Chem Int Ed Engl 2016; 55:9134-66. [DOI: 10.1002/anie.201508119] [Citation(s) in RCA: 227] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 12/05/2015] [Indexed: 01/07/2023]
Affiliation(s)
- Minqiang Jia
- Department of ChemistryFudan University 220 Handan Road Shanghai 200433 P.R. China
| | - Shengming Ma
- Department of ChemistryFudan University 220 Handan Road Shanghai 200433 P.R. China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 P.R. China
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11
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Affiliation(s)
- Minqiang Jia
- Department of ChemistryFudan University 220 Handan Road Shanghai 200433 P.R. China
| | - Shengming Ma
- Department of ChemistryFudan University 220 Handan Road Shanghai 200433 P.R. China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Lu Shanghai 200032 P.R. China
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12
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Ji K, Yang F, Gao S, Tang J, Gao J. Gold‐Catalyzed Oxidation/C−H Functionalization of Ynones: Efficient and Rapid Access to Functionalized Polycyclic Salicyl Ketones. Chemistry 2016; 22:10225-9. [DOI: 10.1002/chem.201600736] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Kegong Ji
- Shaanxi Key Laboratory of Natural Products & Chemical Biology College of Science Northwest A&F University 3 Taicheng Road, Yangling 7 12100 Shaanxi P.R. China
| | - Fang Yang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology College of Science Northwest A&F University 3 Taicheng Road, Yangling 7 12100 Shaanxi P.R. China
| | - Shiyue Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology College of Science Northwest A&F University 3 Taicheng Road, Yangling 7 12100 Shaanxi P.R. China
| | - Jiangjiang Tang
- Shaanxi Key Laboratory of Natural Products & Chemical Biology College of Science Northwest A&F University 3 Taicheng Road, Yangling 7 12100 Shaanxi P.R. China
| | - Jinming Gao
- Shaanxi Key Laboratory of Natural Products & Chemical Biology College of Science Northwest A&F University 3 Taicheng Road, Yangling 7 12100 Shaanxi P.R. China
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13
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14
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Jiang T, Quan X, Zhu C, Andersson PG, Bäckvall JE. Palladium-Catalyzed Oxidative Synthesis of α-Acetoxylated Enones from Alkynes. Angew Chem Int Ed Engl 2016; 55:5824-8. [PMID: 27060476 PMCID: PMC5021131 DOI: 10.1002/anie.201600696] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Indexed: 12/28/2022]
Abstract
We report a palladium-catalyzed oxidative functionalization of alkynes to generate α-acetoxylated enones in one step. A range of functional groups are well-tolerated in this reaction. Mechanistic studies, including the use of (18) O-labeled DMSO, revealed that the ketone oxygen atom in the product originates from DMSO.
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Affiliation(s)
- Tuo Jiang
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Xu Quan
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Can Zhu
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Pher G Andersson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Jan-E Bäckvall
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden.
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15
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Jiang T, Quan X, Zhu C, Andersson PG, Bäckvall JE. Palladium-Catalyzed Oxidative Synthesis of α-Acetoxylated Enones from Alkynes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600696] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Tuo Jiang
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 10691 Stockholm Sweden
| | - Xu Quan
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 10691 Stockholm Sweden
| | - Can Zhu
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 10691 Stockholm Sweden
| | - Pher G. Andersson
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 10691 Stockholm Sweden
| | - Jan-E. Bäckvall
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University; 10691 Stockholm Sweden
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16
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Chen M, Sun N, Xu W, Zhao J, Wang G, Liu Y. Gold-Catalyzed Ring Expansion of Alkynyl Heterocycles through 1,2-Migration of an Endocyclic Carbon-Heteroatom Bond. Chemistry 2015; 21:18571-5. [PMID: 26490371 DOI: 10.1002/chem.201504165] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Indexed: 11/08/2022]
Abstract
A mild and efficient gold-catalyzed oxidative ring-expansion of a series of alkynyl heterocycles using pyridine-N-oxide as the oxidant has been developed, which affords highly valuable six- or seven-membered heterocycles with wide functional group toleration. The reaction consists of a regioselective oxidation and a chemoselective migration of an endocyclic carbon-heteroatom bond (favored over C-H migration) with the order of migratory aptitude for carbon-heteroatom bonds being C-S>C-N>C-O. In the absence of an oxidant, polycyclic products are readily constructed through a ring-expansion/Nazarov cyclization reaction sequence.
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Affiliation(s)
- Ming Chen
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (P. R. China)
| | - Ning Sun
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (P. R. China)
| | - Wei Xu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (P. R. China)
| | - Jidong Zhao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (P. R. China)
| | - Gaonan Wang
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (P. R. China)
| | - Yuanhong Liu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032 (P. R. China).
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17
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2013. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.09.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Ji K, Liu X, Du B, Yang F, Gao J. Gold-catalyzed selective oxidation of 4-oxahepta-1,6-diynes to 2H-pyran-3(6H)-ones and chromen-3(4H)-ones via β-gold vinyl cation intermediates. Chem Commun (Camb) 2015; 51:10318-21. [DOI: 10.1039/c5cc02952j] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
α-Oxo gold carbenes generated in situ via the gold-catalyzed selective oxidation of 4-oxahepta-1,6-diynes were effectively trapped by internal alkynes, resulting in the formation of 2H-pyran-3(6H)-ones, 3, and chromen-3(4H)-ones, 4, upon facile trapping the vinyl cation intermediates.
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Affiliation(s)
- Kegong Ji
- College of Science
- Northwest A&F University
- Yangling 712100
- China
| | - Xiang Liu
- College of Science
- Northwest A&F University
- Yangling 712100
- China
| | - Bowen Du
- College of Science
- Northwest A&F University
- Yangling 712100
- China
| | - Fang Yang
- College of Science
- Northwest A&F University
- Yangling 712100
- China
| | - Jinming Gao
- College of Science
- Northwest A&F University
- Yangling 712100
- China
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19
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Hoffmann M, Miaskiewicz S, Weibel JM, Pale P, Blanc A. Assigning regioisomeric or diastereoisomeric relations of problematic trisubstituted double-bonds through heteronuclear 2D selective J-resolved NMR spectroscopy. RSC Adv 2015. [DOI: 10.1039/c5ra03228h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Although one of the first 2D NMR methods, but so far neglected, selectiveJ-resolved NMR spectroscopy offers a unique opportunity to help organic chemists in structure elucidation, avoiding natural and non-natural product misassignments.
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Affiliation(s)
- Marie Hoffmann
- Laboratoire de Synthèse
- Réactivité Organiques et Catalyse
- UMR 7177 associé au CNRS
- Institut de Chimie
- Université de Strasbourg
| | - Solène Miaskiewicz
- Laboratoire de Synthèse
- Réactivité Organiques et Catalyse
- UMR 7177 associé au CNRS
- Institut de Chimie
- Université de Strasbourg
| | - Jean-Marc Weibel
- Laboratoire de Synthèse
- Réactivité Organiques et Catalyse
- UMR 7177 associé au CNRS
- Institut de Chimie
- Université de Strasbourg
| | - Patrick Pale
- Laboratoire de Synthèse
- Réactivité Organiques et Catalyse
- UMR 7177 associé au CNRS
- Institut de Chimie
- Université de Strasbourg
| | - Aurélien Blanc
- Laboratoire de Synthèse
- Réactivité Organiques et Catalyse
- UMR 7177 associé au CNRS
- Institut de Chimie
- Université de Strasbourg
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20
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Li J, Ji K, Zheng R, Nelson J, Zhang L. Expanding the horizon of intermolecular trapping of in situ generated α-oxo gold carbenes: efficient oxidative union of allylic sulfides and terminal alkynes via C-C bond formation. Chem Commun (Camb) 2014; 50:4130-4133. [PMID: 24622909 DOI: 10.1039/c4cc00739e] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With a new P,S-bidentate phosphine as the ligand to gold(I), the α-oxo gold carbenes generated in situ via gold-catalyzed intermolecular oxidation of terminal alkynes were effectively trapped by various allylic sulfides, resulting in the formation of α-aryl(alkyl)thio-γ,δ-unsaturated ketones upon facile [2,3]sigmatropic rearrangements.
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Affiliation(s)
- Jiabin Li
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106.,College of Science, China Pharmaceutical University, Nanjing, 210009, P. R. China
| | - Kegong Ji
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106
| | - Renhua Zheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106
| | - Jonathan Nelson
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106
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21
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Ji K, D’Souza B, Nelson J, Zhang L. Gold-Catalyzed Oxidation of Propargylic Ethers with Internal C-C Triple Bonds: Impressive Regioselectivity Enabled by Inductive Effect. J Organomet Chem 2014; 770:142-145. [PMID: 25284890 PMCID: PMC4183066 DOI: 10.1016/j.jorganchem.2014.08.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Inductive perturbations of C-C triple bonds are shown to dictate the regiochemistry of gold-catalyzed oxidation of internal C-C triple bonds in the cases of propargylic ethers, resulting in highly regioselective formation of β-alkoxy-α,β-unsaturated ketones (up to >50/1 selectivity) via α-oxo gold carbene intermediates. Ethers derived from primary propargylic alcohols can be reliably transformed in good yields, and various functional groups are tolerated. With substrates derived from secondary propargylic alcohols, the development of a new P,N-bidentate ligand enables the minimization of competing alkyl group migration to the gold carbene center over the desired hydride migration; the preferred migration of a phenyl group, however, results in efficient formation of a α-phenyl-β-alkoxy-α,β-unsaturated ketone. These results further advance the surrogacy of a propargyl moiety to synthetically versatile enone function with reliable and readily predictable regioselectivity.
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Affiliation(s)
- Kegong Ji
- Department of Chemistry and Biochemistry University of California Santa Barbara, California (USA)
| | - Brendan D’Souza
- Department of Chemistry and Biochemistry University of California Santa Barbara, California (USA)
| | - Jon Nelson
- Department of Chemistry and Biochemistry University of California Santa Barbara, California (USA)
| | - Liming Zhang
- Department of Chemistry and Biochemistry University of California Santa Barbara, California (USA)
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22
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Cui JF, Kung KKY, Ko HM, Hui TW, Wong MK. Silver-Catalyzed Transformation of Propargylic AmineN-Oxides to Enones and Acyloxy KetonesviaIsoxazolinium Intermediates. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400395] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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23
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Sun N, Chen M, Liu Y. Gold-Catalyzed Oxidative Reactions of Propargylic Carbonates Involving 1,2-Carbonate Migration: Stereoselective Synthesis of Functionalized Alkenes. J Org Chem 2014; 79:4055-67. [DOI: 10.1021/jo500573s] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Ning Sun
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Ming Chen
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
| | - Yuanhong Liu
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People’s Republic of China
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