1
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Wang RH, Li B, Gou MB, Luo ZQ, Liu B, Li Y, Kong X, He Q, He S, Li JF, Huang J, Wang J, Zhang J, Tang L. Redox-Neutral Coupling of Allyl Alcohols with Trifluoromethyl Ketones via Synergistic Ni-Ti Bimetallic Catalysis. Org Lett 2024; 26:7408-7413. [PMID: 39186015 DOI: 10.1021/acs.orglett.4c02720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
A redox-neutral coupling of allyl alcohols with trifluoromethyl ketones has been developed via Ni-Ti bimetallic catalysis. This innovative method allows for the efficient synthesis of various β-tertiary trifluoromethyl alcohol-substituted ketones with yields of up to 98%. The reaction is scalable and compatible with a wide range of substrates, including complex bioactive molecules. Mechanistic studies suggest that the rate-determining step involving β-H elimination and the presence of the Ti-based Lewis acid, as well as a hydroxyl group on the substrates, is crucial for driving the reactivity of this transformation.
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Affiliation(s)
- Rong-Hua Wang
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 561113 Guiyang, P. R. China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medcial University, 550014 Guiyang, P. R. China
| | - Bo Li
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 561113 Guiyang, P. R. China
| | - Ming-Bai Gou
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 561113 Guiyang, P. R. China
| | - Zhen-Qi Luo
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 561113 Guiyang, P. R. China
| | - Bin Liu
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 561113 Guiyang, P. R. China
| | - Yong Li
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 561113 Guiyang, P. R. China
| | - Xiangkai Kong
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 561113 Guiyang, P. R. China
| | - Qing He
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 561113 Guiyang, P. R. China
| | - Siyu He
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 561113 Guiyang, P. R. China
| | - Jiang-Fei Li
- Department of Chemistry, Institute of Synthesis and Application of Medical Materials, Wannan Medical College, 241002 Wuhu, P. R. China
| | - Jiayu Huang
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 561113 Guiyang, P. R. China
| | - Jianta Wang
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 561113 Guiyang, P. R. China
| | - Jiquan Zhang
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 561113 Guiyang, P. R. China
| | - Lei Tang
- School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 561113 Guiyang, P. R. China
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medcial University, 550014 Guiyang, P. R. China
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2
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Unexpected Decarbonylation of Acylethynylpyrroles under the Action of Cyanomethyl Carbanion: A Robust Access to Ethynylpyrroles. Molecules 2023; 28:molecules28031389. [PMID: 36771055 PMCID: PMC9919934 DOI: 10.3390/molecules28031389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/04/2023] Open
Abstract
It has been found that the addition of CH2CN- anion to the carbonyl group of acylethynylpyrroles, generated from acetonitrile and t-BuOK, results in the formation of acetylenic alcohols, which undergo unexpectedly easy (room temperature) decomposition to ethynylpyrroles and cyanomethylphenylketones (retro-Favorsky reaction). This finding allows a robust synthesis of ethynylpyrroles in up to 95% yields to be developed. Since acylethynylpyrroles became available, the strategy thus found makes ethynylpyrroles more accessible than earlier. The quantum-chemical calculations (B2PLYP/6-311G**//B3LYP/6-311G**+C-PCM/acetonitrile) confirm the thermodynamic preference of the decomposition of the intermediate acetylenic alcohols to free ethynylpyrroles rather than their potassium derivatives.
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3
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Mu B, Gao Y, Yang F, Wu W, Zhang Y, Wang X, Yu J, Zhou J. The Bifunctional Silyl Reagent Me
2
(CH
2
Cl)SiCF
3
Enables Highly Enantioselective Ketone Trifluoromethylation and Related Tandem Processes. Angew Chem Int Ed Engl 2022; 61:e202208861. [DOI: 10.1002/anie.202208861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Indexed: 12/14/2022]
Affiliation(s)
- Bo‐Shuai Mu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Yang Gao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Fu‐Ming Yang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Wen‐Biao Wu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Ying Zhang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Xin Wang
- College of Chemistry Sichuan University Chengdu 610064 China
| | - Jin‐Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry CAS Shanghai 200032 China
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4
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Nakashima K, Hanamura S, Imamura A, Matsushima Y, Hirashima SI, Miura T. Asymmetric Friedel–Crafts alkylation of indoles with α,β‐unsaturated trifluoromethyl ketones using a squaramide organocatalyst. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kosuke Nakashima
- Tokyo University of Pharmacy and Life Sciences: Tokyo Yakka Daigaku Medicinal Chemistry 1432-1 Horinouchi 192-0392 Hachioji JAPAN
| | - Sumire Hanamura
- Tokyo University of Pharmacy and Life Science: Tokyo Yakka Daigaku School of Pharmacy Hachioji JAPAN
| | - Aoi Imamura
- Tokyo University of Pharmacy and Life Science: Tokyo Yakka Daigaku School of Pharmacy Hachioji JAPAN
| | - Yasuyuki Matsushima
- Tokyo University of Pharmacy and Life Science: Tokyo Yakka Daigaku School of Pharmacy Hachioji JAPAN
| | - Shin-ichi Hirashima
- Tokyo University of Pharmacy and Life Science: Tokyo Yakka Daigaku School of Pharmacy Hachioji JAPAN
| | - Tsuyoshi Miura
- Tokyo University of Pharmacy and Life Science: Tokyo Yakka Daigaku School of Pharmacy Hachioji JAPAN
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5
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Mu BS, Gao Y, Yang FM, Wu WB, Zhang Y, Wang X, Yu JS, Zhou J. The Bifunctional Silyl Reagent Me2(CH2Cl)SiCF3 Enabled Highly Enantioselective Ketone Trifluoromethylation and Related Tandem Processes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208861] [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)
- Bo-Shuai Mu
- East China Normal University Department of chemistry CHINA
| | - Yang Gao
- East China Normal University Department of chemistry CHINA
| | - Fu-Ming Yang
- East China Normal University Department of chemistry CHINA
| | - Wen-Biao Wu
- East China Normal University Department of chemistry CHINA
| | - Ying Zhang
- East China Normal University Department of chemistry CHINA
| | - Xin Wang
- Sichuan University College of Chemistry CHINA
| | - Jin-Sheng Yu
- East China Normal University Department of chemistry CHINA
| | - Jian Zhou
- East China Normal University Department of Chemistry 3663 N. Zhongshan Road, , 200062 Shanghai CHINA
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6
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Mishra S, Nair SR, Baire B. Recent approaches for the synthesis of pyridines and (iso)quinolines using propargylic Alcohols. Org Biomol Chem 2022; 20:6037-6056. [PMID: 35678139 DOI: 10.1039/d2ob00587e] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Propargylic alcohols are one of the readily available and highly explored building blocks in organic synthesis. They show distinct reactivities compared to simple alcohols and/or alkynes, and hence provide diverse possibilities to develop novel synthetic strategies for the construction of polycyclic systems, including heterocycles. The six-membered heterocycles, pyridines, quinolines, and isoquinolines, are very important privileged structures in medicinal chemistry and drug discovery due to their broad spectrum of biological activities. They are also part of vitamins, nucleic acids, pharmaceuticals, antibiotics, dyes, and agrochemicals. Many synthetic strategies have been developed for the rapid and efficient generation of these cyclic systems. One such strategy is employing the propargylic alcohols as reactants in the form of either a 3-carbon component or 2-carbon unit. Thus, in this review article, we aimed to summarize various approaches to pyridines, quinolines, and isoquinolines from propargylic alcohols. To the best of our knowledge, so far, no focused reviews have appeared on this topic in the literature. Due to the many reports available, we also restricted ourselves to the developments during the past 17 years, i.e., 2005-2021. We strongly believe that this review article provides comprehensive coverage of research articles on the title topic, and will be of great value for the organic synthetic community for further developments in this area of research.
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Affiliation(s)
- Surabhi Mishra
- Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India.
| | - Sindoori R Nair
- Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India.
| | - Beeraiah Baire
- Indian Institute of Technology Madras, Chennai, Tamil Nadu, 600036, India.
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7
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Carceller-Ferrer L, González del Campo A, Vila C, Blay G, Muñoz MC, Pedro JR. Catalytic Diastereo- and Enantioselective Synthesis of Tertiary Trifluoromethyl Carbinols through a Vinylogous Aldol Reaction of Alkylidenepyrazolones with Trifluoromethyl Ketones. J Org Chem 2022; 87:4538-4549. [PMID: 35293756 PMCID: PMC8981347 DOI: 10.1021/acs.joc.1c02817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Indexed: 11/29/2022]
Abstract
A diastereo- and enantioselective organocatalytic aldol reaction between alkylidenepyrazolones and trifluoromethyl ketones leading to chiral tertiary alcohols bearing a trifluoromethyl group is presented. The methodology is based on the use of a bifunctional organocatalyst in order to activate the γ-hydrogen atoms of the alkylidenepyrazolone nucleophile and the carbonyl group of the trifluoromethylarylketone providing highly functionalized trifluoromethyl alcohols with moderate yields, excellent diastereoselectivity, and moderate to good enantioselectivity. Experiments monitoring the conversion by 1H NMR and the enantiomeric excess by HPLC with the reaction time showed that full conversion of the starting materials is not achieved and that the enantiomeric excess decreases upon extended times, probably due to the reversibility of the reaction.
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Affiliation(s)
- Laura Carceller-Ferrer
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Aleix González del Campo
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Carlos Vila
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - Gonzalo Blay
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
| | - M. Carmen Muñoz
- Departament
de Física Aplicada, Universitat Politècnica
de València, Camino de Vera s/n, 46022 València, Spain
| | - José R. Pedro
- Departament
de Química Orgànica, Facultat
de Química, Universitat de València, Dr. Moliner 50, 46100 Burjassot, València, Spain
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8
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Kani R, Inuzuka T, Kubota Y, Funabiki K. Synthesis of 1‐Trifluoromethylated Propargyl Alcohols by Two Successive Reactions of Cyclopentylmagnesium Bromide in a One‐Pot Manner. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ryunosuke Kani
- Department of Chemistry and Biomolecular Science Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Toshiyasu Inuzuka
- Division of Instrumental Analysis Life Science Research Center Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Yasuhiro Kubota
- Department of Chemistry and Biomolecular Science Gifu University 1-1 Yanagido Gifu 501-1193 Japan
| | - Kazumasa Funabiki
- Department of Chemistry and Biomolecular Science Gifu University 1-1 Yanagido Gifu 501-1193 Japan
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9
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Jiang S, Ma H, Yang R, Song XR, Xiao Q. Recent advances in the cascade reactions of enynols/diynols for the synthesis of carbo- and heterocycles. Org Chem Front 2022. [DOI: 10.1039/d2qo01154a] [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
This review summaries a view of the advances in the cascade reactions of enynols/diynols for the construction of carbo- and heterocycles.
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Affiliation(s)
- Shimin Jiang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Haojie Ma
- Key Laboratory of New Energy & New Functional Materials, College of Chemistry and Chemical Engineering, Yan'an University, Yan'an, Shaanxi, 716000, P. R. China
| | - Ruchun Yang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Xian-Rong Song
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Qiang Xiao
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
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10
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Tanaka I, Sawamura M, Shimizu Y. Visible Light-Induced Reductive Alkynylation of Aldehydes by Umpolung Approach. Org Lett 2021; 24:520-524. [PMID: 34965142 DOI: 10.1021/acs.orglett.1c03927] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reductive alkynylation of aldehydes by the Umpolung approach was developed using a photoredox catalyst under blue LED irradiation. Ketyl radicals, generated by single-electron reduction of aldehydes through proton-coupled electron transfer (PCET), reacted with electrophilic alkynylsulfones. Sterically demanding bulky aldehydes reacted smoothly under the Umpolung reaction conditions. Moreover, the alkynylation proceeded chemoselectively with an aryl aldehyde group in the presence of other carbonyl groups including an aliphatic aldehyde group.
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Affiliation(s)
- Ibuki Tanaka
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Masaya Sawamura
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan.,Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Yohei Shimizu
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan.,Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
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11
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Liao K, Gong Y, Zhu R, Wang C, Zhou F, Zhou J. Highly Enantioselective CuAAC of Functional Tertiary Alcohols Featuring an Ethynyl Group and Their Kinetic Resolution. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016286] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Kui Liao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Yi Gong
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Ren‐Yi Zhu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Cai Wang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Feng Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 P. R. China
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12
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Liao K, Gong Y, Zhu R, Wang C, Zhou F, Zhou J. Highly Enantioselective CuAAC of Functional Tertiary Alcohols Featuring an Ethynyl Group and Their Kinetic Resolution. Angew Chem Int Ed Engl 2021; 60:8488-8493. [DOI: 10.1002/anie.202016286] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Kui Liao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Yi Gong
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Ren‐Yi Zhu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Cai Wang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Feng Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering East China Normal University 3663N Zhongshan Road Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 P. R. China
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13
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Bag D, Sawant SD. Heteroarene-tethered Functionalized Alkyne Metamorphosis. Chemistry 2021; 27:1165-1218. [PMID: 32603015 DOI: 10.1002/chem.202002154] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Indexed: 12/11/2022]
Abstract
Heteroarene-tethered functionalized alkynes are multipotent synthons in organic chemistry. This detailed Review described herein offers a thorough discussion of the metamorphosis of heteroarene-tethered functionalized alkynes, an area which has earned much attention over the past decade in the straightforward synthesis of architecturally complex heterocyclic scaffolds in atom and step economic manner. Depending upon the variety of functionalized alkynes, this Review is divided into multiple sections. Amongst the vast array of synthetic transformations covered, dearomatizing spirocyclizations and cascade spirocyclization/rearrangement are of great interest. Synthetic transformations involving the heteroarene-tethered functionalized alkynes with scope, challenges, limitations, mechanism, their application in the total synthesis of natural products and future perceptions are surveyed.
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Affiliation(s)
- Debojyoti Bag
- Laboratory 212, Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine Jammu, Canal Road, Jammu, Jammu and Kashmir, 180001, India
| | - Sanghapal D Sawant
- Laboratory 212, Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine Jammu, Canal Road, Jammu, Jammu and Kashmir, 180001, India
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14
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Du S, Zhou AX, Yang R, Song XR, Xiao Q. Recent advances in the direct transformation of propargylic alcohols to allenes. Org Chem Front 2021. [DOI: 10.1039/d1qo01151k] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review summaries a view of the advances in the direct transformation of propargylic alcohols to functionalized allenes.
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Affiliation(s)
- Sha Du
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - An-Xi Zhou
- Key Laboratory of Applied Organic Chemistry, Higher Institutions of Jiangxi Province, Shangrao Normal University, Shangrao 334000, China
| | - Ruchun Yang
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Xian-Rong Song
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
| | - Qiang Xiao
- Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Jiangxi Province, Nanchang 330013, China
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15
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Kumar GR, Rajesh M, Lin S, Liu S. Propargylic Alcohols as Coupling Partners in Transition‐Metal‐Catalyzed Arene C−H Activation. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000896] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Gadi Ranjith Kumar
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou 511436 People's Republic of China
| | - Manda Rajesh
- Department of Organic Synthesis & Process Chemistry CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
| | - Shuimu Lin
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou 511436 People's Republic of China
| | - Shouping Liu
- Key Laboratory of Molecular Target & Clinical Pharmacology and the State Key Laboratory of Respiratory Disease School of Pharmaceutical Sciences & the Fifth Affiliated Hospital Guangzhou Medical University Guangzhou 511436 People's Republic of China
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16
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Song X, Yang R, Xiao Q. Recent Advances in the Synthesis of Heterocyclics via Cascade Cyclization of Propargylic Alcohols. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001142] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Xian‐Rong Song
- Institute of Organic Chemistry Jiangxi Science & Technology Normal University Key Laboratory of Organic Chemistry Nanchang 330013 People's Republic of China
| | - Ruchun Yang
- Institute of Organic Chemistry Jiangxi Science & Technology Normal University Key Laboratory of Organic Chemistry Nanchang 330013 People's Republic of China
| | - Qiang Xiao
- Institute of Organic Chemistry Jiangxi Science & Technology Normal University Key Laboratory of Organic Chemistry Nanchang 330013 People's Republic of China
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17
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Pan B, Shi Y, Tian Y, Zhou Y, Zhou J, Yu J. Synthesis of Multifunctional
α
,
α
‐Difluoroketones through Allylic Alkylation of Difluoroenoxysilanes with MBH Carbonates. Chem Asian J 2020; 15:4028-4032. [DOI: 10.1002/asia.202001145] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 10/19/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Bo‐Wen Pan
- College of Pharmacy Guizhou University of Traditional Chinese Medicine Guiyang 550025 P. R. China
| | - Yang Shi
- College of Pharmacy Guizhou University of Traditional Chinese Medicine Guiyang 550025 P. R. China
| | - You‐Ping Tian
- College of Pharmacy Guizhou University of Traditional Chinese Medicine Guiyang 550025 P. R. China
| | - Ying Zhou
- College of Pharmacy Guizhou University of Traditional Chinese Medicine Guiyang 550025 P. R. China
| | - Jian Zhou
- College of Pharmacy Guizhou University of Traditional Chinese Medicine Guiyang 550025 P. R. China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes East China Normal University Shanghai 200062 P. R. China
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry, CAS Shanghai 200032 P.R. China
| | - Jin‐Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development Shanghai Key Laboratory of Green Chemistry and Chemical Processes East China Normal University Shanghai 200062 P. R. China
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18
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Zhu WJ, Gong JF, Song MP. Synthesis of Chiral Bis(3-indolyl)methanes Bearing a Trifluoromethylated All-Carbon Quaternary Stereocenter via Nickel-Catalyzed Asymmetric Friedel-Crafts Alkylation Reaction. J Org Chem 2020; 85:9525-9537. [PMID: 32628848 DOI: 10.1021/acs.joc.0c00336] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Bis(3-indolyl)methanes are well-known natural products with a broad range of important biological functions including cancer cell growth inhibition and antimicrobial activity. Incorporation of a trifluoromethyl group is known to have a profound effect on the parent compound's biological activities. Here, an efficient method for the synthesis of chiral trifluoromethylated bis(3-indolyl)methanes via a catalytic asymmetric Friedel-Crafts (F-C) alkylation reaction has been established. Both enantiomers of the catalysis products can be obtained by tuning the chiral substituents of the catalyst. With 5 mol % of the Ni(II)/(imidazoline-oxazoline) complex as the catalyst, the F-C reaction of indoles with β-CF3-β-(3-indolyl)nitroalkenes proceeded well to afford a series of chiral bis(3-indolyl)methanes bearing a trifluoromethylated all-carbon quaternary stereocenter in generally good yields with excellent enantioselectivities (up to 98% yield and 94% ee). Furthermore, by interchanging the indole moieties of the two reactants, indole vs β-CF3-β-(3-indolyl)nitroalkene in the F-C reaction, both enantiomers of a given trifluoromethylated bis(3-indolyl)methane were obtained with high enantioselectivities (89-94% ee) upon removal of the indole N-protecting group in the F-C products. The current work represents the first general catalytic enantioselective approach to the important class of trifluoromethylated bis(3-indolyl)methanes.
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Affiliation(s)
- Wen-Jing Zhu
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Jun-Fang Gong
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People's Republic of China
| | - Mao-Ping Song
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou 450001, People's Republic of China
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19
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Viesser RV, Tormena CF. Counterintuitive deshielding on the 13 C NMR chemical shift for the trifluoromethyl anion. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2020; 58:540-547. [PMID: 31705544 DOI: 10.1002/mrc.4958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 10/18/2019] [Indexed: 06/10/2023]
Abstract
The trifluoromethyl anion (CF3 - ) displays 13 C NMR chemical shift (175.0 ppm) surprisingly larger than neutral (CHF3 , 122.2 ppm) and cation (CF3 + , 150.7 ppm) compounds. This unexpected deshielding effect for a carbanion is investigated by density functional theory calculations and decomposition analyses of the 13 C shielding tensor into localized molecular orbital contributions. The present work determines the shielding mechanisms involved in the observed behaviour of the fluorinated anion species, shedding light on the experimental NMR data and demystify the classical correlation between electron density and NMR chemical shift. The presence of fluorine atoms induces the carbon lone pair to create a paramagnetic shielding on the carbon nucleus.
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Affiliation(s)
- Renan V Viesser
- Institute of Chemistry, University of Campinas-UNICAMP, P.O. Box 6154, Campinas, SP, 13083-970, Brazil
| | - Cláudio F Tormena
- Institute of Chemistry, University of Campinas-UNICAMP, P.O. Box 6154, Campinas, SP, 13083-970, Brazil
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20
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Hirano K, Yoshioka K, Umezu K, Kagawa T, Sumii Y, Shibata N. One-step Synthesis of 2-Hydroxy-2-(trifluoromethyl)malonates by Trifluoromethylation of 2-Oxomalonates with Ruppert-Prakash Reagent. CHEM LETT 2020. [DOI: 10.1246/cl.190942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kazuki Hirano
- Department of Nanopharmaceutical Sciences, and Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya, Aichi 466-8555, Japan
| | - Kotaro Yoshioka
- KUMIAI CHEMICAL INDUSTRY CO., LTD, 4-26 Ikenohata 1-chome, Taito-ku, Tokyo 110-8782, Japan
| | - Kazuto Umezu
- KUMIAI CHEMICAL INDUSTRY CO., LTD, 4-26 Ikenohata 1-chome, Taito-ku, Tokyo 110-8782, Japan
| | - Takumi Kagawa
- Tosoh Finechem Corporation, 4988 Kaiseicho, Shunan, Yamaguchi 746-0006, Japan
| | - Yuji Sumii
- Department of Nanopharmaceutical Sciences, and Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya, Aichi 466-8555, Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences, and Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya, Aichi 466-8555, Japan
- Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, 688 Yingbin Avenue, 321004 Jinhua, P. R. China
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21
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Xie S, Gao X, Zhou F, Wu H, Zhou J. Enantioselective carboxylative cyclization of propargylic alcohol with carbon dioxide under mild conditions. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.05.060] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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22
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Park D, Jette CI, Kim J, Jung W, Lee Y, Park J, Kang S, Han MS, Stoltz BM, Hong S. Enantioselective Alkynylation of Trifluoromethyl Ketones Catalyzed by Cation‐Binding Salen Nickel Complexes. Angew Chem Int Ed Engl 2020; 59:775-779. [DOI: 10.1002/anie.201913057] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 11/06/2019] [Indexed: 01/11/2023]
Affiliation(s)
- Dongseong Park
- Department of ChemistryGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
| | - Carina I. Jette
- Warren And Katharine Schlinger Laboratory for Chemistry and Chemical EngineeringCalifornia Institute of Technology Pasadena CA 91125 USA
| | - Jiyun Kim
- Department of ChemistryGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
| | - Woo‐Ok Jung
- Department of ChemistryGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
| | - Yongmin Lee
- School of Materials Science and EngineeringGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
| | - Jongwoo Park
- Department of ChemistryUniversity of Florida P.O.Box 117200 Gainesville FL 32611-7200 USA
- Current address: Process R&D CenterSK biotek 325 Exporo Yuseong-gu Daejeon 34124 Republic of Korea
| | - Seungyoon Kang
- Department of ChemistryGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
| | - Min Su Han
- Department of ChemistryGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
| | - Brian M. Stoltz
- Warren And Katharine Schlinger Laboratory for Chemistry and Chemical EngineeringCalifornia Institute of Technology Pasadena CA 91125 USA
| | - Sukwon Hong
- Department of ChemistryGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
- School of Materials Science and EngineeringGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
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23
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Park D, Jette CI, Kim J, Jung W, Lee Y, Park J, Kang S, Han MS, Stoltz BM, Hong S. Enantioselective Alkynylation of Trifluoromethyl Ketones Catalyzed by Cation‐Binding Salen Nickel Complexes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201913057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Dongseong Park
- Department of ChemistryGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
| | - Carina I. Jette
- Warren And Katharine Schlinger Laboratory for Chemistry and Chemical EngineeringCalifornia Institute of Technology Pasadena CA 91125 USA
| | - Jiyun Kim
- Department of ChemistryGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
| | - Woo‐Ok Jung
- Department of ChemistryGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
| | - Yongmin Lee
- School of Materials Science and EngineeringGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
| | - Jongwoo Park
- Department of ChemistryUniversity of Florida P.O.Box 117200 Gainesville FL 32611-7200 USA
- Current address: Process R&D CenterSK biotek 325 Exporo Yuseong-gu Daejeon 34124 Republic of Korea
| | - Seungyoon Kang
- Department of ChemistryGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
| | - Min Su Han
- Department of ChemistryGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
| | - Brian M. Stoltz
- Warren And Katharine Schlinger Laboratory for Chemistry and Chemical EngineeringCalifornia Institute of Technology Pasadena CA 91125 USA
| | - Sukwon Hong
- Department of ChemistryGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
- School of Materials Science and EngineeringGwangju Institute of Science and Technology (GIST) 123 Cheomdan-gwagiro Buk-gu Gwangju 61005 Republic of Korea
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24
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Tong P, Sun Z, Wang S, Zhang Y, Li Y. Zn(OTf) 2-Catalyzed Formal [3 + 3] Cascade Annulation of Propargylic Alcohols with 2-Aminochromones: Accessing the Chromeno[2,3- b]pyridines. J Org Chem 2019; 84:13967-13974. [PMID: 31552742 DOI: 10.1021/acs.joc.9b02120] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A Zn(OTf)2-catalyzed formal [3 + 3] cascade annulation strategy for the synthesis of functionalized chromeno[2,3-b]pyridines has been developed using propargylic alcohols and 2-aminochromones as the substrates. The protocol provides a convenient and atom-economical method of accessing a broad range of chromeno[2,3-b]pyridine derivatives in excellent yields with good functional-group tolerance. The method is also effective on the gram scale, which highlights the inherent practicality of this synthetic transformation.
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Affiliation(s)
- Pei Tong
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , People's Republic of China
| | - Zhou Sun
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , People's Republic of China.,Institute for Advanced Interdisciplinary Research , Qilu University of Technology , Daxue Road No. 3501 , Jinan , Shandong 250353 , People's Republic of China
| | - Shutao Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , People's Republic of China
| | - Yuan Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , People's Republic of China
| | - Ying Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering , Lanzhou University , Lanzhou 730000 , People's Republic of China
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25
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Affiliation(s)
- Hongwei Qian
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Dayun Huang
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Yicheng Bi
- Qingdao University of Science & TechnologySifang Campus 53 Zhengzhou Road Qingdao Shandong 266042 People's Republic of China
| | - Guobing Yan
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
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26
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Rong MY, Yang L, Nie J, Zhang FG, Ma JA. Construction of Chiral β-Trifluoromethyl Alcohols Enabled by Catalytic Enantioselective Aldol-Type Reaction of CF3CHN2. Org Lett 2019; 21:4280-4283. [DOI: 10.1021/acs.orglett.9b01468] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Meng-Yu Rong
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering, Tianjin University, Tianjin 300072, P. R. of China
| | - Lijun Yang
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering, Tianjin University, Tianjin 300072, P. R. of China
| | - Jing Nie
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering, Tianjin University, Tianjin 300072, P. R. of China
| | - Fa-Guang Zhang
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering, Tianjin University, Tianjin 300072, P. R. of China
| | - Jun-An Ma
- Department of Chemistry, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, and Tianjin Collaborative Innovation Center of Chemical Science & Engineering, Tianjin University, Tianjin 300072, P. R. of China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. of China
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27
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Hu WF, Zhao JQ, Chen XZ, Zhou MQ, Zhang XM, Xu XY, Yuan WC. Organocatalytic enantioselective sulfa-Michael addition of thiocarboxylic acids to β-trifluoromethyl-α,β-unsaturated ketones for the construction of stereogenic carbon center bearing a sulfur atom and a trifluoromethyl group. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.02.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Paria S, Lee HJ, Maruoka K. Enantioselective Alkynylation of Isatin Derivatives Using a Chiral Phase-Transfer/Transition-Metal Hybrid Catalyst System. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04949] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Suva Paria
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Hyo-Jun Lee
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100, West Waihuan Road, HEMC, Panyu District, Guangzhou, 510006, China
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29
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Hu XS, Ding PG, Yu JS, Zhou J. A Sc(OTf)3 catalyzed Mukaiyama–Mannich reaction of difluoroenoxysilanes with unactivated ketimines. Org Chem Front 2019. [DOI: 10.1039/c9qo00577c] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The first example of a Mukaiyama–Mannich reaction of difluoroenoxysilanes with unactivated ketimines catalyzed by Sc(OTf)3 is described.
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Affiliation(s)
- Xiao-Si Hu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- East China Normal University
- Shanghai 200062
- China
| | - Pei-Gang Ding
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- East China Normal University
- Shanghai 200062
- China
| | - Jin-Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- East China Normal University
- Shanghai 200062
- China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- East China Normal University
- Shanghai 200062
- China
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30
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Hu XS, Yu JS, Zhou J. Catalytic selective mono- and difluoroalkylation using fluorinated silyl enol ethers. Chem Commun (Camb) 2019; 55:13638-13648. [DOI: 10.1039/c9cc07677h] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This feature article highlights our recent achievements in catalytic selective mono- and difluoroalkylation using fluorinated silyl enol ethers (FSEEs).
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Affiliation(s)
- Xiao-Si Hu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Jin-Sheng Yu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- P. R. China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development
- East China Normal University
- Shanghai 200062
- P. R. China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
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