1
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Fujii T, Wang Q, Zhu J. Arylative Ring Expansion of 3-Vinylazetidin-3-Ols and 3-Vinyloxetan-3-Ols to Dihydrofurans by Dual Palladium and Acid Catalysis. Angew Chem Int Ed Engl 2024; 63:e202403484. [PMID: 38525663 DOI: 10.1002/anie.202403484] [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: 02/19/2024] [Revised: 03/22/2024] [Accepted: 03/25/2024] [Indexed: 03/26/2024]
Abstract
In contrast to the well-studied 1-vinylcyclobutanols, the reactivity of 3-vinylazetidin-3-ols 1 and 3-vinyloxetan-3-ols 2 under transition metal catalysis remains largely unexplored. We report herein their unique reactivity under dual palladium and acid catalysis. In the presence of a catalytic amount of Pd(OAc)2(PPh3)2, AgTFA and triflic acid, the reaction of 1 or 2 with aryl iodides affords 2,3,4-trisubstituted dihydrofurans, which are valuable heterocycles in organic synthesis. Mechanistic studies reveal that this arylative ring-expansion reaction proceeds via a domino process involving Heck arylation of alkene, acid-catalyzed transposition of allylic alcohol and ring opening of the azetidine/oxetane by an internal hydroxyl group.
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Affiliation(s)
- Takuji Fujii
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH, 5304, 1015, Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH, 5304, 1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products (LSPN), Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH, 5304, 1015, Lausanne, Switzerland
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2
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Li F, Ren J, Song Y, Yuan Q, Yan D, Zhang W. Iridium-Catalyzed 1,3-Rearrangement of Allylic Ethers. Org Lett 2023. [PMID: 38029372 DOI: 10.1021/acs.orglett.3c03661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
The 1,3-rearrangement of allylic derivatives has rarely been reported, except for allylic alcohols. Herein, we describe an iridium-catalyzed 1,3-rearrangement of readily available allylic ethers to access the difficultly prepared allylic ethers with a large steric hindrance. The developed method shows a broad substrate scope and could be used in the late-stage modification of several natural products. In addition, a possible reaction pathway is also provided on the basis of the control experiments.
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Affiliation(s)
- Fei Li
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Jinbao Ren
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Yifan Song
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Qianjia Yuan
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Deyue Yan
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Wanbin Zhang
- Shanghai Key Laboratory of Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
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3
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Blackner JJ, Rooney DM, Hollett JW, McCubbin JA. Ferrocenium Boronic Acid Catalyzed Deoxygenative Coupling of Alcohols with Carbon- and Nitrogen-Based Borate and Silane Nucleophiles. J Org Chem 2023; 88:8505-8511. [PMID: 37285506 PMCID: PMC10337667 DOI: 10.1021/acs.joc.3c00463] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Indexed: 06/09/2023]
Abstract
A boronic acid catalyzed carbon-carbon and carbon-nitrogen bond-forming reaction for the functionalization of various π-activated alcohols has been developed. Ferrocenium boronic acid hexafluoroantimonate salt was identified as an effective catalyst in the direct deoxygenative coupling of alcohols with a variety of potassium trifluoroborate and organosilane nucleophiles. In a comparison between these two classes of nucleophiles, the use of organosilanes leads to higher reaction yields, increased diversity of the alcohol substrate scope, and high E/Z selectivity. Furthermore, the reaction proceeds under mild conditions and yields up to 98%. Computational studies provide a rationalization for a mechanistic pathway for the retention of E/Z stereochemistry when E or Z alkenyl silanes are used as nucleophiles. This methodology is complementary to existing methodologies for deoxygenative coupling reactions involving organosilanes, and it is effective with a variety of organosilane nucleophile sub-types, including allylic, vinylic, and propargylic trimethylsilanes.
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Affiliation(s)
- Jake J. Blackner
- Department
of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
| | - Deirdre M. Rooney
- Department
of Chemistry, University of Winnipeg, 515 Portage Avenue, Winnipeg, Manitoba R3B 2E9, Canada
| | - Joshua W. Hollett
- Department
of Chemistry, University of Winnipeg, 515 Portage Avenue, Winnipeg, Manitoba R3B 2E9, Canada
| | - J. Adam McCubbin
- Department
of Chemistry, University of Winnipeg, 515 Portage Avenue, Winnipeg, Manitoba R3B 2E9, Canada
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4
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Abdollahi F, Ghaderi A. Copper‐catalyzed synthesis of
α
‐ketothioamides from ketones. J CHIN CHEM SOC-TAIP 2023. [DOI: 10.1002/jccs.202200520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Affiliation(s)
- Fatemeh Abdollahi
- Department of Chemistry, College of Sciences University of Hormozgan Bandar Abbas Iran
| | - Arash Ghaderi
- Department of Chemistry, College of Sciences University of Hormozgan Bandar Abbas Iran
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5
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Sai M, Mizuno T. Potassium base-catalyzed redox isomerization of propargylic alcohols to chalcones. SYNTHETIC COMMUN 2023. [DOI: 10.1080/00397911.2022.2152695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Masahiro Sai
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
| | - Takatoki Mizuno
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, Gifu, Japan
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6
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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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7
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Yang J, Massaro L, Hu W, Peters BBC, Birke N, Chantana C, Singh T, Andersson PG. Iridium-Catalyzed Double Convergent 1,3-Rearrangement/Hydrogenation of Allylic Alcohols. J Am Chem Soc 2022; 145:626-633. [PMID: 36534479 PMCID: PMC9837846 DOI: 10.1021/jacs.2c11289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Enantioconvergent catalysis has the potential to convert different isomers of a starting material to a single highly enantioenriched product. Here we report a novel enantioselective double convergent 1,3-rearrangement/hydrogenation of allylic alcohols using an Ir-N,P catalyst. A variety of allylic alcohols, each consisting of a 1:1:1:1 mixture of four isomers, were converted to the corresponding tertiary alcohols with two contiguous stereogenic centers, in up to 99% ee and 99:1 d.r. DFT calculations, and control experiments suggest that the 1,3-rearrangement is the crucial stereodetermining element of the reaction.
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Affiliation(s)
- Jianping Yang
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden
| | - Luca Massaro
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden
| | - Weigao Hu
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden
| | - Bram B. C. Peters
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden
| | - Norman Birke
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden
| | - Chayamon Chantana
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 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, Arrhenius Laboratory, Stockholm University, 106 91 Stockholm, Sweden,School
of Chemistry and Physics, University of
Kwazulu-Natal, Private Bag X54001, Durban 4000, South Africa,
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8
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Yan X, Yu B, Zhang H, Huang H. Copper-Catalyzed Claisen Rearrangement with AIBN and Allylic Alcohols. J Org Chem 2022; 87:16918-16927. [DOI: 10.1021/acs.joc.2c02298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Affiliation(s)
- Xuyang Yan
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei 230026, PR China
| | - Bangkui Yu
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei 230026, PR China
| | - Haocheng Zhang
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei 230026, PR China
| | - Hanmin Huang
- Hefei National Research Center for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, Hefei 230026, PR China
- State Key Laboratory of Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China
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9
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Zambri MT, Hou TR, Taylor MS. Synergistic Organoboron/Palladium Catalysis for Regioselective N-Allylations of Azoles with Allylic Alcohols. Org Lett 2022; 24:7617-7621. [PMID: 36201424 DOI: 10.1021/acs.orglett.2c03084] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A method for regioselective palladium-catalyzed allylic alkylation of ambident nitrogen heterocycles, employing simple allylic alcohols as electrophile precursors, is described. An organoboron co-catalyst serves both to activate the azole-type nucleophile toward selective N-functionalization and to accelerate the formation of a π-allylpalladium complex from the allylic alcohol. The method can be applied to various heterocycle types, including 1,2,3- and 1,2,4-triazoles, tetrazoles, pyrazoles, and purines, and can be extended to substituted allylic alcohol partners.
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Affiliation(s)
- Matthew T Zambri
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Teh Ren Hou
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Mark S Taylor
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
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10
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Boyce GR, Musolino SF, Yang J, Smith AD, Taylor JE. Arylboronic Acid-Catalyzed Racemization of Secondary and Tertiary Alcohols. J Org Chem 2022; 87:13367-13374. [PMID: 36075004 PMCID: PMC9552221 DOI: 10.1021/acs.joc.2c01602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
The use of 2-carboxyphenylboronic acid (5 mol %) and
oxalic acid
(10 mol %) with 2-butanone as a solvent for the racemization of a
range of enantiomerically pure secondary and tertiary alcohols is
demonstrated. The process is postulated to proceed via reversible
Brønsted acid-catalyzed C–O bond cleavage through an achiral
carbocation intermediate.
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Affiliation(s)
- Gregory R Boyce
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K.,Department of Chemistry and Physics, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Stefania F Musolino
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K
| | - Jianing Yang
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K
| | - Andrew D Smith
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife KY16 9ST, U.K
| | - James E Taylor
- Department of Chemistry, University of Bath, Claverton Down, Bath, Somerset BA2 7AY, U.K
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11
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Bai JF, Tang J, Gao X, Jiang ZJ, Tang B, Chen J, Gao Z. Regioselective Cycloaddition and Substitution Reaction of Tertiary Propargylic Alcohols and Heteroareneboronic Acids via Acid Catalysis. Org Lett 2022; 24:4507-4512. [PMID: 35708270 DOI: 10.1021/acs.orglett.2c01403] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report an acid-catalyzed formal cycloaddition and dehydrative substitution reaction of tertiary propargylic alcohols and heteroareneboronic acids. The properties of the substituents on the alkynyl moiety determines the regioselectivity of the reaction, which could selectively construct fused heterocycles, tetrasubstituted allenes, or 1,3-dienes. This reaction proceeds efficiently with a wide array of substrate scope in up to 89% yield. A significant advantage of this protocol is the transition-metal-free and mild conditions needed.
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Affiliation(s)
- Jian-Fei Bai
- School of Biological and Chemical Engineering, NingboTech University, 315100 Ningbo, P. R. China
| | - Jianbo Tang
- School of Biological and Chemical Engineering, NingboTech University, 315100 Ningbo, P. R. China
| | - Xiaolong Gao
- Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, 730000 Lanzhou, P. R. China
| | - Zhi-Jiang Jiang
- School of Biological and Chemical Engineering, NingboTech University, 315100 Ningbo, P. R. China
| | - Bencan Tang
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Ningbo China, 315100 Ningbo, PR China
| | - Jia Chen
- School of Biological and Chemical Engineering, NingboTech University, 315100 Ningbo, P. R. China
| | - Zhanghua Gao
- School of Biological and Chemical Engineering, NingboTech University, 315100 Ningbo, P. R. China
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12
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Radtanajiravong L, Peters J, Hummell J, Diez-Gonzalez S. Meyer-Schuster Rearrangement of Propargylic Alcohols Mediated by Phosphorus-Containing Brønsted Acid Catalysts. Org Biomol Chem 2022; 20:7338-7342. [DOI: 10.1039/d2ob01259f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Commercially available (aqueous) hypophosphorus acid is an efficient catalyst for the synthesis of α,β-unsaturated carbonyl compounds from their corresponding propargylic alcohols. Reactions were carried out in technical toluene in the...
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13
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Dhokale RA, Seidl FJ, Sathyamoorthi S. A Formal Rearrangement of Allylic Silanols. Molecules 2021; 26:molecules26133829. [PMID: 34201779 PMCID: PMC8270268 DOI: 10.3390/molecules26133829] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/20/2021] [Accepted: 06/21/2021] [Indexed: 11/23/2022] Open
Abstract
We show that 1M aqueous HCl/THF or NaBH4/DMF allows for demercurative ring-opening of cyclic organomercurial synthons into secondary silanol products bearing terminal alkenes. We had previously demonstrated that primary allylic silanols are readily transformed into cyclic organomercurials using Hg(OTf)2/NaHCO3 in THF. Overall, this amounts to a facile two-step protocol for the rearrangement of primary allylic silanol substrates. Computational investigations suggest that this rearrangement is under thermodynamic control and that the di-tert-butylsilanol protecting group is essential for product selectivity.
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Affiliation(s)
- Ranjeet A. Dhokale
- Department of Medicinal Chemistry, University of Kansas, Lawrence, KS 66047, USA;
| | | | - Shyam Sathyamoorthi
- Department of Medicinal Chemistry, University of Kansas, Lawrence, KS 66047, USA;
- Correspondence:
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14
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Justaud F, Hachem A, Grée R. Recent Developments in the Meyer‐Schuster Rearrangement. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001494] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Frédéric Justaud
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
| | - Ali Hachem
- Lebanese University Faculty of Sciences (I) Laboratory for Medidinal Chemistry and Natural Products and PRASE-EDST Hadath Lebanon
| | - René Grée
- Univ Rennes CNRS (Institut for Chemical Sciences in Rennes), UMR 6226 35000 Rennes France
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15
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Baldassari LL, Mantovani AC, Jardim M, Maryasin B, Lüdtke DS. Meyer–Schuster-type rearrangement for the synthesis of α-selanyl-α,β-unsaturated thioesters. Chem Commun (Camb) 2021; 57:117-120. [DOI: 10.1039/d0cc07019j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A new approach to prepare α-selanyl-α,β-unsaturated thioesters from propargylthioalkynes and an electrophilic selenium species is reported.
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Affiliation(s)
- Lucas L. Baldassari
- Instituto de Química
- Universidade Federal do Rio Grande do Sul
- UFRGS
- Porto Alegre
- Brazil
| | - Anderson C. Mantovani
- Instituto de Química
- Universidade Federal do Rio Grande do Sul
- UFRGS
- Porto Alegre
- Brazil
| | - Micaela Jardim
- Instituto de Química
- Universidade Federal do Rio Grande do Sul
- UFRGS
- Porto Alegre
- Brazil
| | - Boris Maryasin
- Institute of Organic Chemistry
- University of Vienna
- 1090 Vienna
- Austria
- Institute of Theoretical Chemistry
| | - Diogo S. Lüdtke
- Instituto de Química
- Universidade Federal do Rio Grande do Sul
- UFRGS
- Porto Alegre
- Brazil
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16
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Vengatesh G, Sundaravadivelu M, Muthusubramanian S. Ring opening of 2,6‐diaryl‐3,5‐diphenyl piperidine‐4‐one by acetic acid: Structural studies and Hirshfeld surface analysis of (
E
)‐4‐aryl‐1,3‐diphenylbut‐3‐en‐2‐ones. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Gopal Vengatesh
- Department of Chemistry The Gandhigram Rural Institute (Deemed to be University) Gandhigram India
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17
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Zhang S, Lebœuf D, Moran J. Brønsted Acid and H‐Bond Activation in Boronic Acid Catalysis. Chemistry 2020; 26:9883-9888. [DOI: 10.1002/chem.202001902] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Indexed: 01/15/2023]
Affiliation(s)
- Shaofei Zhang
- University of Strasbourg CNRS ISIS UMR 7006 67000 Strasbourg France
| | - David Lebœuf
- University of Strasbourg CNRS ISIS UMR 7006 67000 Strasbourg France
| | - Joseph Moran
- University of Strasbourg CNRS ISIS UMR 7006 67000 Strasbourg France
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18
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Adonin NY, Bardin VV. Polyfluorinated arylboranes as catalysts in organic synthesis. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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19
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Dimakos V, Gorelik D, Su HY, Garrett GE, Hughes G, Shibayama H, Taylor MS. Site-selective redox isomerizations of furanosides using a combined arylboronic acid/photoredox catalyst system. Chem Sci 2020; 11:1531-1537. [PMID: 34084383 PMCID: PMC8148048 DOI: 10.1039/c9sc05173b] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 12/12/2019] [Indexed: 01/17/2023] Open
Abstract
In the presence of an arylboronic acid and a hydrogen atom transfer mediator under photoredox conditions, furanoside derivatives undergo site-selective redox isomerizations to 2-keto-3-deoxyfuranosides. Experimental evidence and computational modeling suggest that the transformation takes place by abstraction of the hydrogen atom from the 2-position of the furanoside-derived arylboronic ester, followed by C3-O bond cleavage via spin-center shift. This mechanism is reminiscent of the currently accepted pathway for the formation of 3'-ketodeoxynucleotides by ribonucleotide reductase enzymes.
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Affiliation(s)
- Victoria Dimakos
- Department of Chemistry, University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Daniel Gorelik
- Department of Chemistry, University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Hsin Y Su
- Department of Chemistry, University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Graham E Garrett
- Department of Chemistry, University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Gregory Hughes
- Global Process Chemistry, Merck Research Laboratories P. O. Box 2000 Rahway NJ 07065 USA
| | - Hiromitsu Shibayama
- Department of Chemistry, University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
| | - Mark S Taylor
- Department of Chemistry, University of Toronto 80 St. George St. Toronto ON M5S 3H6 Canada
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20
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Talasila DS, Queensen MJ, Barnes-Flaspoler M, Jurkowski K, Stephenson E, Rabus JM, Bauer EB. Ferrocenium Cations as Catalysts for the Etherification of Cyclopropyl-Substituted Propargylic Alcohols: Ene-yne Formation and Mechanistic Insights. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Deva Saroja Talasila
- University of Missouri - St. Louis; Department of Chemistry and Biochemistry; One University Boulevard 63121 St. Louis MO USA
| | - Matthew J. Queensen
- University of Missouri - St. Louis; Department of Chemistry and Biochemistry; One University Boulevard 63121 St. Louis MO USA
| | - Michael Barnes-Flaspoler
- University of Missouri - St. Louis; Department of Chemistry and Biochemistry; One University Boulevard 63121 St. Louis MO USA
| | - Kellsie Jurkowski
- University of Missouri - St. Louis; Department of Chemistry and Biochemistry; One University Boulevard 63121 St. Louis MO USA
| | - Evan Stephenson
- University of Missouri - St. Louis; Department of Chemistry and Biochemistry; One University Boulevard 63121 St. Louis MO USA
| | - Jordan M. Rabus
- University of Missouri - St. Louis; Department of Chemistry and Biochemistry; One University Boulevard 63121 St. Louis MO USA
| | - Eike B. Bauer
- University of Missouri - St. Louis; Department of Chemistry and Biochemistry; One University Boulevard 63121 St. Louis MO USA
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21
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Gan X, Fu Z, Liu L, Yan Y, Chen C, Zhou Y, Dong J. Phosphorous acid promoted isomerization of propargyl alcohols to α,β-unsaturated carbonyl compounds. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.06.065] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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22
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Sadhukhan S, Baire B. Formal Halo‐Meyer–Schuster Rearrangement of Propargylic Acetates through a Novel Intermediate and an Unexampled Mechanistic Pathway. Chemistry 2019; 25:9816-9820. [DOI: 10.1002/chem.201901856] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/29/2019] [Indexed: 01/02/2023]
Affiliation(s)
- Santu Sadhukhan
- Department of ChemistryIndian Institute of Technology Madras Chennai Tamilnadu 600036 India
| | - Beeraiah Baire
- Department of ChemistryIndian Institute of Technology Madras Chennai Tamilnadu 600036 India
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23
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Yao H, Liu J, Wang C. Boronic acid-catalysed C-3 selective ring opening of 3,4-epoxy alcohols with thiophenols and thiols. Org Biomol Chem 2019; 17:1901-1905. [PMID: 30259944 DOI: 10.1039/c8ob02141d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this protocol we described a boronic acid-catalysed C-3 selective ring opening of 3,4-epoxy alcohols with thiophenols and thiols as nucleophiles. This diastereo- and enantiospecific reaction provides an efficient entry to prepare a variety of hydroxyl sulfides. Through the directing effect of the hydroxyl group, nucleophilic attack on the C-3 position of the epoxide moiety is favoured. It can be rationalized in a proposed transition state, in which the boronic acid catalyst tethers both epoxides and S-nucleophiles.
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Affiliation(s)
- Hongqing Yao
- Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 20237, P. R. China.
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24
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Estopiñá‐Durán S, Donnelly LJ, Mclean EB, Hockin BM, Slawin AMZ, Taylor JE. Aryl Boronic Acid Catalysed Dehydrative Substitution of Benzylic Alcohols for C−O Bond Formation. Chemistry 2019; 25:3950-3956. [PMID: 30629761 DOI: 10.1002/chem.201806057] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/09/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Susana Estopiñá‐Durán
- EaStCHEMSchool of ChemistryUniversity of St Andrews North Haugh St Andrews KY16 9ST UK
| | - Liam J. Donnelly
- EaStCHEMSchool of ChemistryUniversity of St Andrews North Haugh St Andrews KY16 9ST UK
| | - Euan B. Mclean
- EaStCHEMSchool of ChemistryUniversity of St Andrews North Haugh St Andrews KY16 9ST UK
| | - Bryony M. Hockin
- EaStCHEMSchool of ChemistryUniversity of St Andrews North Haugh St Andrews KY16 9ST UK
| | | | - James E. Taylor
- EaStCHEMSchool of ChemistryUniversity of St Andrews North Haugh St Andrews KY16 9ST UK
- Department of ChemistryUniversity of Bath Claverton Down Bath BA2 7AY UK
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25
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Ang HT, Rygus JPG, Hall DG. Two-component boronic acid catalysis for increased reactivity in challenging Friedel–Crafts alkylations with deactivated benzylic alcohols. Org Biomol Chem 2019; 17:6007-6014. [DOI: 10.1039/c9ob01043b] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The combination of a boronic acid catalyst with perfluoropinacol as a co-catalyst improves the scope of Friedel–Crafts benzylations of arenes with electronically deactivated primary and secondary benzylic alcohols.
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Affiliation(s)
- Hwee Ting Ang
- Department of Chemistry
- Centennial Centre for Interdisciplinary Science
- University of Alberta
- Edmonton
- Canada
| | - Jason P. G. Rygus
- Department of Chemistry
- Centennial Centre for Interdisciplinary Science
- University of Alberta
- Edmonton
- Canada
| | - Dennis G. Hall
- Department of Chemistry
- Centennial Centre for Interdisciplinary Science
- University of Alberta
- Edmonton
- Canada
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26
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Abstract
Although boronic acids are recognized primarily for their utility as reagents in transition metal-catalyzed transformations, other applications are emerging, including their use as reaction catalysts.
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Affiliation(s)
- Dennis G. Hall
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
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27
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Manhas S, Taylor MS. Dehydrative glycosidations of 2-deoxysugar derivatives catalyzed by an arylboronic ester. Carbohydr Res 2018; 470:42-49. [DOI: 10.1016/j.carres.2018.10.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 10/11/2018] [Accepted: 10/11/2018] [Indexed: 01/05/2023]
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28
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Akgun B, Hall DG. Boronic Acids as Bioorthogonal Probes for Site‐Selective Labeling of Proteins. Angew Chem Int Ed Engl 2018; 57:13028-13044. [DOI: 10.1002/anie.201712611] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 04/23/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Burcin Akgun
- Department of Chemistry—CCIS 4–010University of Alberta Edmonton Alberta T6G 2G2 Canada
| | - Dennis G. Hall
- Department of Chemistry—CCIS 4–010University of Alberta Edmonton Alberta T6G 2G2 Canada
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29
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Affiliation(s)
- Jiawei Liu
- Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 20237, People’s Republic of China
| | - Hongqing Yao
- Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 20237, People’s Republic of China
| | - Chuan Wang
- Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 20237, People’s Republic of China
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30
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Akgun B, Hall DG. Boronsäuren als bioorthogonale Sonden für zentrenselektives Protein‐Labeling. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712611] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Burcin Akgun
- Department of Chemistry – CCIS 4-010University of Alberta Edmonton Alberta T6G 2G2 Kanada
| | - Dennis G. Hall
- Department of Chemistry – CCIS 4-010University of Alberta Edmonton Alberta T6G 2G2 Kanada
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31
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Roy D, Tharra P, Baire B. Intercepted Meyer-Schuster Rearrangements in Organic Synthesis. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800089] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Debayan Roy
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 Tamil Nadu India
| | - Prabhakararao Tharra
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 Tamil Nadu India
| | - Beeraiah Baire
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036 Tamil Nadu India
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32
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Mo X, Morgan TDR, Ang HT, Hall DG. Scope and Mechanism of a True Organocatalytic Beckmann Rearrangement with a Boronic Acid/Perfluoropinacol System under Ambient Conditions. J Am Chem Soc 2018; 140:5264-5271. [DOI: 10.1021/jacs.8b01618] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Xiaobin Mo
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Timothy D. R. Morgan
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Hwee Ting Ang
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Dennis G. Hall
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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33
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Dimakos V, Singh T, Taylor MS. Boronic acid/Brønsted acid co-catalyst systems for the synthesis of 2H-chromenes from phenols and α,β-unsaturated carbonyls. Org Biomol Chem 2018; 14:6703-11. [PMID: 27314604 DOI: 10.1039/c6ob01026a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Protocols for the synthesis of substituted 2H-chromenes from α,β-unsaturated carbonyls and phenols are described. Optimal combinations of arylboronic acids and Brønsted acids have been identified, such that both can be employed in catalytic quantities to accelerate these condensations. The method has been used to synthesize a variety of substituted 2H-chromenes, as well as photochromic naphthopyrans. The use of pentafluorophenylboronic acid and diphenylphosphinic acid enabled an expansion of the electrophile scope to include α,β-unsaturated ketones. Hall's 'phase-switching' of boronic acids has been exploited to achieve the separation of the two co-catalysts from unpurified reaction mixtures by a simple liquid-liquid extraction.
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Affiliation(s)
- Victoria Dimakos
- Department of Chemistry, University of Toronto, Toronto, ON M5S 3H6, Canada.
| | - Tishaan Singh
- Department of Chemistry, University of Toronto, Toronto, ON M5S 3H6, Canada.
| | - Mark S Taylor
- Department of Chemistry, University of Toronto, Toronto, ON M5S 3H6, Canada.
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34
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Liu N, Zhi Y, Yao J, Xing J, Lu T, Dou X. Rhodium(I)-Catalyzed Arylation/Dehydroxylation of tert
-Propargylic Alcohols Leading to Tetrasubstituted Allenes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701263] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Na Liu
- Department of Organic Chemistry and State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 210009, People's Republic of China
| | - Yanle Zhi
- Department of Organic Chemistry and State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 210009, People's Republic of China
| | - Jian Yao
- Department of Organic Chemistry and State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 210009, People's Republic of China
| | - Junhao Xing
- Department of Organic Chemistry and State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 210009, People's Republic of China
| | - Tao Lu
- Department of Organic Chemistry and State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 210009, People's Republic of China
| | - Xiaowei Dou
- Department of Organic Chemistry and State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 210009, People's Republic of China
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35
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Das A, Watanabe K, Morimoto H, Ohshima T. Boronic Acid Accelerated Three-Component Reaction for the Synthesis of α-Sulfanyl-Substituted Indole-3-acetic Acids. Org Lett 2017; 19:5794-5797. [DOI: 10.1021/acs.orglett.7b02727] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Amrita Das
- Graduate School of Pharmaceutical
Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Kenji Watanabe
- Graduate School of Pharmaceutical
Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Hiroyuki Morimoto
- Graduate School of Pharmaceutical
Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Takashi Ohshima
- Graduate School of Pharmaceutical
Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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36
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Xiao L, Zheng Y, Xie Q, Shao L. Palladium-Catalyzed Cascade Saegusa-Heck Reaction: Synthesis of β,β-Diarylacroleins from Arylpropanals and Aryl Iodides. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Li Xiao
- Department of Medicinal Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road, Zhangjiang Hi-tech Park 201203 Pudong, Shanghai P. R. China
| | - Yilin Zheng
- Department of Medicinal Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road, Zhangjiang Hi-tech Park 201203 Pudong, Shanghai P. R. China
| | - Qiong Xie
- Department of Medicinal Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road, Zhangjiang Hi-tech Park 201203 Pudong, Shanghai P. R. China
| | - Liming Shao
- Department of Medicinal Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road, Zhangjiang Hi-tech Park 201203 Pudong, Shanghai P. R. China
- State Key Laboratory of Medical Neurobiology; School of Pharmacy; Fudan University; 138 Yixueyuan Road 200032 Shanghai P. R. China
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37
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Kombala CJ, Ekanayake DI, Gross DE. Boron trifluoride facilitated transesterification of dioxaborolanes. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.08.052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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38
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Pérez JM, Maquilón C, Ramón DJ, Baeza A. Hexafluoroisopropanol-Promoted Metal-Free Allylation of Silyl Enol Ethers with Allylic Alcohols. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700320] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Juana M. Pérez
- Institute of Organic Synthesis; University of Alicante; Ctra. San Vicente s/n Alicante 03080 Spain
| | - Cristina Maquilón
- Institute of Organic Synthesis; University of Alicante; Ctra. San Vicente s/n Alicante 03080 Spain
| | - Diego J. Ramón
- Institute of Organic Synthesis; University of Alicante; Ctra. San Vicente s/n Alicante 03080 Spain
| | - Alejandro Baeza
- Institute of Organic Synthesis; University of Alicante; Ctra. San Vicente s/n Alicante 03080 Spain
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39
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Verdelet T, Ward RM, Hall DG. Direct Sulfonamidation of Primary and Secondary Benzylic Alcohols Catalyzed by a Boronic Acid/Oxalic Acid System. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700621] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tristan Verdelet
- Department of Chemistry; Centennial Centre for Interdisciplinary Science; University of Alberta; T6G 2G2 Edmonton Alberta Canada
| | - Robert M. Ward
- Department of Chemistry; Centennial Centre for Interdisciplinary Science; University of Alberta; T6G 2G2 Edmonton Alberta Canada
| | - Dennis G. Hall
- Department of Chemistry; Centennial Centre for Interdisciplinary Science; University of Alberta; T6G 2G2 Edmonton Alberta Canada
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40
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Tan JK, Mathiew M, Nayak S, Chan PWH. Brønsted Acid-Mediated Cycloaromatization of 1H-Indol-2-yl Propargyl Benzoates to 7H-Benzo[c]carbazoles. Chem Asian J 2017; 12:1475-1479. [PMID: 28608646 DOI: 10.1002/asia.201700419] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 04/07/2017] [Indexed: 01/18/2023]
Abstract
A synthetic method for the efficient assembly of benzo[c]carbazole derivatives that relies on silica gel-activated benzoic acid-mediated cycloaromatization of 1H-indol-2-yl propargyl benzoates under atmospheric conditions is described. Robust with a variety of substitution patterns tolerated, the reaction provides a one-step strategy to construct a member of the N-heterocycles family in good to excellent yields. A tentative mechanism is proposed in which the cycloaromatization process is thought to involve a Brønsted acid-mediated formal 1,3-acyloxy migration/6π-electrocyclization pathway.
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Affiliation(s)
- Javey Khiapeng Tan
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
| | - Mitch Mathiew
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
| | - Sanatan Nayak
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
| | - Philip Wai Hong Chan
- School of Chemistry, Monash University, Clayton, Victoria, 3800, Australia
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK
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41
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Trillo P, Baeza A. Copper-Catalyzed Asymmetric Allylic Alkylation ofβ-Keto Esters with Allylic Alcohols. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601139] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Paz Trillo
- Departamento de Química Orgánica; Facultad de Ciencias; Instituto de Síntesis Orgánica (ISO); Universidad de Alicante; Apdo 99 03080 Alicante Spain
| | - Alejandro Baeza
- Departamento de Química Orgánica; Facultad de Ciencias; Instituto de Síntesis Orgánica (ISO); Universidad de Alicante; Apdo 99 03080 Alicante Spain
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42
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Tharra P, Baire B. A coherent study on the Z-enoate assisted Meyer–Schuster rearrangement. Org Biomol Chem 2017. [DOI: 10.1039/c7ob01221g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The impact of temperature, solvent, concentration of the counter ion and the nature of the arene nucleophile on the Z-enoate assisted Meyer–Schuster rearrangement of propargylic alcohols was studied.
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Affiliation(s)
| | - Beeraiah Baire
- Department of Chemistry
- Institute of Technology Madras
- Chennai-600036
- India
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43
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Li J, Tan C, Mu X, Gong J, Yang Z. Synthesis of Substituted Benzoxacycles via a Pd(II)-Catalyzed Intramolecular Arylation Reaction of Allylic Alcohols. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201600527] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jingjie Li
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology; Peking University Shenzhen, Graduate School; Shenzhen Guangdong 518055 China
| | - Ceheng Tan
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology; Peking University Shenzhen, Graduate School; Shenzhen Guangdong 518055 China
| | - Xinpeng Mu
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology; Peking University Shenzhen, Graduate School; Shenzhen Guangdong 518055 China
| | - Jianxian Gong
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology; Peking University Shenzhen, Graduate School; Shenzhen Guangdong 518055 China
| | - Zhen Yang
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology; Peking University Shenzhen, Graduate School; Shenzhen Guangdong 518055 China
- Key Laboratory of Bioorganic Chemistry and Molecular Engineering, Ministry of Education and Beijing National, Laboratory for Molecular Science (BNLMS) and Peking-Tsinghua Center for Life Sciences; Peking University; Beijing 100871 China
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44
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Mo X, Hall DG. Dual Catalysis Using Boronic Acid and Chiral Amine: Acyclic Quaternary Carbons via Enantioselective Alkylation of Branched Aldehydes with Allylic Alcohols. J Am Chem Soc 2016; 138:10762-5. [DOI: 10.1021/jacs.6b06101] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xiaobin Mo
- Department
of Chemistry,
Centennial Centre for Interdisciplinary Science, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Dennis G. Hall
- Department
of Chemistry,
Centennial Centre for Interdisciplinary Science, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
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45
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Puri S, Hari Babu M, Sridhar Reddy M. BF3·OEt2-mediated syn-selective Meyer-Schuster rearrangement of phenoxy propargyl alcohols for Z-β-aryl-α,β-unsaturated esters. Org Biomol Chem 2016; 14:7001-9. [PMID: 27355915 DOI: 10.1039/c6ob01090c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of Z-β-aryl-α,β-unsaturated esters from readily available 1-aryl-3-phenoxy propargyl alcohols is achieved via a BF3-mediated syn-selective Meyer-Schuster rearrangement under ambient conditions. The reaction mechanism is postulated to involve an electrophilic borylation of an allene intermediate as the key step to kinetically control the stereoselectivity.
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Affiliation(s)
- Surendra Puri
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India.
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46
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El Dine TM, Rouden J, Blanchet J. Borinic acid catalysed peptide synthesis. Chem Commun (Camb) 2016; 51:16084-7. [PMID: 26390250 DOI: 10.1039/c5cc06177f] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalytic synthesis of peptides is a major challenge in the modern organic chemistry hindered by the well-established use of stoichiometric coupling reagents. Herein, we describe for the first time that borinic acid is able to catalyse this reaction under mild conditions with an improved activity compared to our recently developed thiophene-based boronic acid. This catalyst is particularly efficient for peptide bond synthesis affording dipeptides in good yields without detectable racemization.
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Affiliation(s)
- Tharwat Mohy El Dine
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN, Université de Caen Normandie, CNRS, 6 boulevard du Maréchal Juin, 14050 Caen, France.
| | - Jacques Rouden
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN, Université de Caen Normandie, CNRS, 6 boulevard du Maréchal Juin, 14050 Caen, France.
| | - Jérôme Blanchet
- Laboratoire de Chimie Moléculaire et Thio-organique, ENSICAEN, Université de Caen Normandie, CNRS, 6 boulevard du Maréchal Juin, 14050 Caen, France.
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47
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Tiwari PK, Aidhen IS. A Weinreb Amide Based Building Block for Convenient Access to β,β-Diarylacroleins: Synthesis of 3-Arylindanones. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600193] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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48
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Alcaide B, Almendros P, Busto E, Luna A. Domino Meyer-Schuster/Arylation Reaction of Alkynols or Alkynyl Hydroperoxides with Diazonium Salts Promoted by Visible Light under Dual Gold and Ruthenium Catalysis. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600158] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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49
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Du C, Wang X, Jin S, Shi H, Li Y, Pang Y, Liu Y, Cheng M, Guo C, Liu Y. Investigation of Meyer-Schuster Rearrangement Promoted by a Samarium(III) Triflate/N-Fluorobenzenesulfonimide Lewis Acid System. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600124] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Chuan Du
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Xiaoyu Wang
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Shengfei Jin
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Hui Shi
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Yangming Li
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Yadong Pang
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Yang Liu
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
| | - Maosheng Cheng
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
| | - Chun Guo
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
| | - Yongxiang Liu
- Key Laboratory of Structure-Based Drug Design and Discovery; Shenyang Pharmaceutical University; Ministry of Education; Shenyang 110016 P. R. China
- Institute of Drug Research in Medicine Capital of China; Benxi 117000 P. R. China
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50
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Tharra P, Baire B. The Z-enoate assisted, Meyer–Schuster rearrangement cascade: unconventional synthesis of α-arylenone esters. Chem Commun (Camb) 2016; 52:12147-12150. [DOI: 10.1039/c6cc06639a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Brønsted acid promoted nucleophilation of propargylic alcohols during the Meyer–Schuster rearrangement (M–S) has been introduced. The reverse polarization of the M–S intermediate allenyl cation has been realized by employing a novel concept of cis-enoate assistance strategy.
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Affiliation(s)
| | - Beeraiah Baire
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600036
- India
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