1
|
Chang MY, Lin CY, Chen SM. Synthesis of 1‐Aryl Isoquinolinones or o‐Diaryl Pyrimidines via Bismuth Triflate‐Mediated Intermolecular Annulation of Arylacetic Acids with Nitroarylaldehydes or Trimethoxybenzene in the Presence of Acetonitrile. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
2
|
Singh B, Ahmed J, Biswas A, Paira R, Mandal SK. Reduced Phenalenyl in Catalytic Dehalogenative Deuteration and Hydrodehalogenation of Aryl Halides. J Org Chem 2021; 86:7242-7255. [PMID: 33949861 DOI: 10.1021/acs.joc.1c00573] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dehalogenative deuteration reactions are generally performed through metal-mediated processes. This report demonstrates a mild protocol for hydrodehalogenation and dehalogenative deuteration of aryl/heteroaryl halides (39 examples) using a reduced odd alternant hydrocarbon phenalenyl under transition metal-free conditions and has been employed successfully for the incorporation of deuterium in various biologically active compounds. The combined approach of experimental and theoretical studies revealed a single electron transfer-based mechanism.
Collapse
Affiliation(s)
- Bhagat Singh
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741246, India
| | - Jasimuddin Ahmed
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741246, India
| | - Amit Biswas
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741246, India
| | - Rupankar Paira
- Department of Chemistry, Maharaja Manindra Chandra College, 20 Ramkanto Bose Street, Kolkata 700003, India
| | - Swadhin K Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, Mohanpur 741246, India
| |
Collapse
|
3
|
Chang MY, Lin CY, Chen SM, Hsiao YT. Bsi(OTf) 3-mediated tandem annulation of 1-aryl isochroman-3-ones with oxygenated arenes: one-pot synthesis of polyoxygenated homotriptycenes. Org Biomol Chem 2021; 19:4733-4742. [PMID: 33970174 DOI: 10.1039/d1ob00606a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bi(OTf)3 (bismuth triflate)-mediated one-pot tandem annulation of oxygenated 1-aryl isochroman-3-ones with oxygenated arenes provides polyoxygenated homotriptycenes in moderate to good yields in MeNO2 at reflux (101 °C) for 10 h under an air atmosphere and easy-operational conditions via intermolecular and intramolecular Friedel-Crafts type procedures. A plausible mechanism is proposed and discussed. This protocol provides a highly effective ring-closure via three carbon-carbon (C-C) bond formations.
Collapse
Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan. and Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
| | - Chun-Yi Lin
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Shin-Mei Chen
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Yu-Ting Hsiao
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| |
Collapse
|
4
|
Wu A, Qian H, Zhao W, Sun J. Benzannulation of isobenzopyryliums with electron-rich alkynes: a modular access to β-functionalized naphthalenes. Chem Sci 2020; 11:7957-7962. [PMID: 34094164 PMCID: PMC8163147 DOI: 10.1039/d0sc02502j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Described here is a modular strategy for the rapid synthesis of β-functionalized electron-rich naphthalenes, a family of valuable molecules lacking general access previously. Our approach employs an intermolecular benzannulation of in situ generated isobenzopyrylium ions with various electron-rich alkynes, which were not well utilized for this type of reaction before. These reactions not only feature a broad scope, complete regioselectivity, and mild conditions, but also exhibit unusual product divergence depending on the substrate substitution pattern. This divergence allows further expansion of the product diversity. Control experiments provided preliminary insights into the reaction mechanism. A substituent-controlled divergent benzannulation provides rapid access to various β-functionalized naphthalenes from electron-rich alkynes.![]()
Collapse
Affiliation(s)
- An Wu
- Department of Chemistry, The Hong Kong University of Science and Technology (HKUST) Clear Water Bay Kowloon Hong Kong SAR China .,HKUST-Shenzhen Research Institute No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Hui Qian
- Department of Chemistry, The Hong Kong University of Science and Technology (HKUST) Clear Water Bay Kowloon Hong Kong SAR China .,HKUST-Shenzhen Research Institute No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Wanxiang Zhao
- Department of Chemistry, The Hong Kong University of Science and Technology (HKUST) Clear Water Bay Kowloon Hong Kong SAR China .,HKUST-Shenzhen Research Institute No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology (HKUST) Clear Water Bay Kowloon Hong Kong SAR China .,HKUST-Shenzhen Research Institute No. 9 Yuexing 1st Rd, South Area, Hi-tech Park, Nanshan Shenzhen 518057 China
| |
Collapse
|
5
|
Tanii S, Arisawa M, Yamaguchi M. Acid-catalyzed synthesis of condensed polycyclic diaryl ethers from arenols. Chem Commun (Camb) 2019; 55:14078-14080. [PMID: 31696874 DOI: 10.1039/c9cc07172e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diaryl ethers containing condensed polycyclic aryl groups were synthesized from arenols in the presence of a catalytic amount of p-chlorobenzenesulfonic acid. Symmetrical binaphthyl, biphenanthryl, and bipyrenyl ethers were obtained in high yields. Unsymmetrical derivatives were also synthesized from 9-phenanthrol and arenols, using combinations of reactive and unreactive substrates.
Collapse
Affiliation(s)
- Saori Tanii
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai, 980-8578, Japan.
| | | | | |
Collapse
|
6
|
Yamamoto D, Makino K. Development of Catalytic Oxygenative Difunctionalization Reactions of Carbon-Carbon Double Bond Using Molecular Oxygen in Air. J SYN ORG CHEM JPN 2019. [DOI: 10.5059/yukigoseikyokaishi.77.696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Daisuke Yamamoto
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University
| | - Kazuishi Makino
- Laboratory of Organic Chemistry for Drug Development and Medical Research Laboratories, Department of Pharmaceutical Sciences, Kitasato University
| |
Collapse
|
7
|
A highly selective Bi(OTf)3 mediated fragmentation-contraction of δ-ortholactones. A facile route to functionalized γ-lactones. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
8
|
Affiliation(s)
- Masahito Murai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Kazuki Origuchi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan
| |
Collapse
|
9
|
Moghaddam FM, Eslami M. Immobilized palladium nanoparticles on MNPs@A-N
-AEB as an efficient catalyst for C-O bond formation in water as a green Solvent. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4463] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Firouz Matloubi Moghaddam
- Laboratory of Organic Synthesis and Natural Products, Department of Chemistry; Sharif University of Technology; Tehran Iran
| | - Mohammad Eslami
- Laboratory of Organic Synthesis and Natural Products, Department of Chemistry; Sharif University of Technology; Tehran Iran
| |
Collapse
|
10
|
Zhang M, Yang J, Xu Q, Dong C, Han LB, Shen R. Copper-Catalyzed Dehydrative Cyclization of 1-(2-Hydroxyphenyl)propargyl Alcohols with P(O)H Compounds for the Synthesis of 2-Phosphorylmethylbenzofurans. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701368] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ming Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering; Nanjing Tech University; Nanjing 210009 People's Republic of China
| | - Jianlin Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering; Nanjing Tech University; Nanjing 210009 People's Republic of China
| | - Qing Xu
- College of Chemistry and Materials Engineering; Wenzhou University, Wenzhou; Zhejiang 325035 People's Republic of China
| | - Chao Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering; Nanjing Tech University; Nanjing 210009 People's Republic of China
| | - Li-Biao Han
- National Institute of Advanced Industrial Science & Technology (AIST), Tsukuba; Ibaraki 305-8565 Japan
| | - Ruwei Shen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering; Nanjing Tech University; Nanjing 210009 People's Republic of China
| |
Collapse
|
11
|
Yang J, Zhang M, Qiu K, Wang L, Yu J, Xia Z, Shen R, Han LB. Cadmium(II) Chloride-Catalyzed Dehydrative C−P Coupling of Propargyl Alcohols with Diarylphosphine Oxides to Afford Allenylphosphine Oxides. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700957] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jianlin Yang
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Chemical Engineering; Nanjing Tech University; Nanjing 210009 People's Republic of China
| | - Ming Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Chemical Engineering; Nanjing Tech University; Nanjing 210009 People's Republic of China
| | - Kang Qiu
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Chemical Engineering; Nanjing Tech University; Nanjing 210009 People's Republic of China
| | - Lize Wang
- College of Oversea Education; Nanjing Tech University; Nanjing 210009 People's Republic of China
| | - Jingjing Yu
- College of Oversea Education; Nanjing Tech University; Nanjing 210009 People's Republic of China
| | - Zefeng Xia
- College of Oversea Education; Nanjing Tech University; Nanjing 210009 People's Republic of China
| | - Ruwei Shen
- State Key Laboratory of Materials-Oriented Chemical Engineering; College of Chemical Engineering; Nanjing Tech University; Nanjing 210009 People's Republic of China
- College of Oversea Education; Nanjing Tech University; Nanjing 210009 People's Republic of China
| | - Li-Biao Han
- National Institute of Advanced Industrial Science & Technology (AIST); Tsukuba Ibaraki 305-8565 Japan
| |
Collapse
|
12
|
Kim SY, Lim JW, Nam KC, Kim JN. Nucleophilic Aromatic tele-Substitution of Hydrogen of 9-Nitroanthracene with 2-Naphthols and Phloroglucinol. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10880] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Su Yeon Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Jin Woo Lim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Kye Chun Nam
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Jae Nyoung Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| |
Collapse
|
13
|
Kaicharla T, Roy T, Thangaraj M, Gonnade RG, Biju AT. Lewis Acid Catalyzed Selective Reactions of Donor-Acceptor Cyclopropanes with 2-Naphthols. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604373] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Trinadh Kaicharla
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Tony Roy
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Manikandan Thangaraj
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Rajesh G. Gonnade
- Centre for Materials Characterization; CSIR-National Chemical Laboratory; Pune- 411008 India
| | - Akkattu T. Biju
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| |
Collapse
|
14
|
Kaicharla T, Roy T, Thangaraj M, Gonnade RG, Biju AT. Lewis Acid Catalyzed Selective Reactions of Donor-Acceptor Cyclopropanes with 2-Naphthols. Angew Chem Int Ed Engl 2016; 55:10061-4. [DOI: 10.1002/anie.201604373] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Trinadh Kaicharla
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Tony Roy
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Manikandan Thangaraj
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| | - Rajesh G. Gonnade
- Centre for Materials Characterization; CSIR-National Chemical Laboratory; Pune- 411008 India
| | - Akkattu T. Biju
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune- 411008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi 110020 India
| |
Collapse
|
15
|
Palladium‐Catalyzed Direct Arylation of Azulene Based on Regioselective C−H Bond Activation. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600062] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
16
|
Mishra AK, Biswas S. Brønsted Acid Catalyzed Functionalization of Aromatic Alcohols through Nucleophilic Substitution of Hydroxyl Group. J Org Chem 2016; 81:2355-63. [PMID: 26835717 DOI: 10.1021/acs.joc.5b02849] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The hydroxyl groups of naphthol and tautomerizable phenol derivatives have been substituted by O-, S-, N-, and C-centered nucleophiles under solvent-free reaction conditions. The products are generated in good to excellent yields. para-Toluenesulfonic acid exhibits the best catalytic activity compared to other Brønsted acids. Experimental observations suggest that the reaction proceeds through the intermediacy of the keto tautomer of naphthol. Nucleophilic addition to the carbonyl group followed by elimination of water generates the desired product. The present methodology provides access to substituted naphtho[2,1-b]furan derivatives. The products generated using N-centered nucleophiles can be further transformed to important classes of organic molecules such as benzocarbazole and imidazole derivatives.
Collapse
Affiliation(s)
- Abhishek Kumar Mishra
- Division of Molecular Synthesis and Drug Discovery, Centre of Bio-Medical Research , SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Srijit Biswas
- Division of Molecular Synthesis and Drug Discovery, Centre of Bio-Medical Research , SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| |
Collapse
|
17
|
Ondet P, Lempenauer L, Duñach E, Lemière G. Bismuth(iii) triflate-catalysed tandem cyclisations towards complex polycyclic ethers. Org Chem Front 2016. [DOI: 10.1039/c6qo00212a] [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
A series of complex polycyclic ethers have been synthesised under very mild conditions using a low catalyst loading of bismuth(iii) triflate.
Collapse
Affiliation(s)
- Pierrick Ondet
- Institut de Chimie de Nice
- UMR 7272
- Université Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| | - Luisa Lempenauer
- Institut de Chimie de Nice
- UMR 7272
- Université Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| | - Elisabet Duñach
- Institut de Chimie de Nice
- UMR 7272
- Université Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| | - Gilles Lemière
- Institut de Chimie de Nice
- UMR 7272
- Université Nice Sophia Antipolis
- CNRS
- 06108 Nice Cedex 2
| |
Collapse
|
18
|
Chang MY, Cheng YC. Bi(OTf)3 Mediated exo-Olefin Isomerization of α-Benzoyl β-Styrylsulfones. Org Lett 2015; 17:5702-5. [DOI: 10.1021/acs.orglett.5b03020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Meng-Yang Chang
- Department
of Medicinal and
Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Chieh Cheng
- Department
of Medicinal and
Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| |
Collapse
|
19
|
Roy D, Maekawa H, Murai M, Takai K. Short Synthesis of [5]- and [7]Phenacenes with Silyl Groups at the Axis Positions. Chem Asian J 2015. [DOI: 10.1002/asia.201500700] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- David Roy
- Division of Applied Chemistry; Graduate School of Natural Science and Technology, Okayama University; 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Hiroyuki Maekawa
- Division of Applied Chemistry; Graduate School of Natural Science and Technology, Okayama University; 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Masahito Murai
- Division of Applied Chemistry; Graduate School of Natural Science and Technology, Okayama University; 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry; Graduate School of Natural Science and Technology, Okayama University; 3-1-1 Tsushimanaka, Kita-ku Okayama 700-8530 Japan
- ACT-C (Japan) Science and Technology Agency; 4-1-8 Honcho, Kawaguchi Saitama 332-0012 Japan
| |
Collapse
|
20
|
Yoo JS, Laughlin TJ, Krob JJ, Mohan RS. Bismuth(III) bromide catalyzed synthesis of polyhydroquinoline derivatives via the Hantzsch reaction. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.04.121] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
21
|
Chang MY, Cheng YC, Lu YJ. Synthesis of Substituted Benzenes via Bi(OTf)3-Mediated Intramolecular Carbonyl Allylation of α-Prenyl or α-Geranyl β-Arylketosulfones. Org Lett 2015; 17:3142-5. [DOI: 10.1021/acs.orglett.5b01461] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and
Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yu-Chieh Cheng
- Department of Medicinal and
Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yi-Ju Lu
- Department of Medicinal and
Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| |
Collapse
|
22
|
Chang MY, Cheng YC, Lu YJ. Bi(OTf)3-Mediated Cycloisomerization of γ-Alkynyl Arylketones: Application to the Synthesis of Substituted Furans. Org Lett 2015; 17:1264-7. [DOI: 10.1021/acs.orglett.5b00246] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Meng-Yang Chang
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yu-Chieh Cheng
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yi-Ju Lu
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| |
Collapse
|
23
|
Murai M, Maekawa H, Hamao S, Kubozono Y, Roy D, Takai K. Transition-Metal-Catalyzed Facile Access to 3,11-Dialkylfulminenes for Transistor Applications. Org Lett 2015; 17:708-11. [DOI: 10.1021/ol503723j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
| | | | | | - Yoshihiro Kubozono
- ACT-C, Japan Science
and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | | | - Kazuhiko Takai
- ACT-C, Japan Science
and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| |
Collapse
|
24
|
Tobisu M, Takahira T, Ohtsuki A, Chatani N. Nickel-Catalyzed Alkynylation of Anisoles via C–O Bond Cleavage. Org Lett 2015; 17:680-3. [DOI: 10.1021/ol503707m] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Mamoru Tobisu
- Center
for Atomic and Molecular Technologies, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tsuyoshi Takahira
- Department
of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Akimichi Ohtsuki
- Department
of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Naoto Chatani
- Department
of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| |
Collapse
|
25
|
Tobisu M, Yasutome A, Kinuta H, Nakamura K, Chatani N. 1,3-Dicyclohexylimidazol-2-ylidene as a superior ligand for the nickel-catalyzed cross-couplings of aryl and benzyl methyl ethers with organoboron reagents. Org Lett 2014; 16:5572-5. [PMID: 25325885 DOI: 10.1021/ol502583h] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A new catalytic system has been developed involving the use of Ni(cod)2 in conjunction with 1,3-dicyclohexylimidazol-2-ylidene for the cross-coupling of aryl and benzyl methyl ethers with organoboron reagents. This method not only allows for the use of readily available methyl ethers as halide surrogates but also provides a functional group tolerant method for the late-stage derivatization of complex molecules.
Collapse
Affiliation(s)
- Mamoru Tobisu
- Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan
| | | | | | | | | |
Collapse
|
26
|
Okamoto N, Sueda T, Yanada R. Bi(OTf)3-Catalyzed Tandem Meyer–Schuster Rearrangement and 1,4-Addition to the Resulting Vinyl Ketone. J Org Chem 2014; 79:9854-9. [DOI: 10.1021/jo5017663] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Noriko Okamoto
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Takuya Sueda
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| | - Reiko Yanada
- Faculty of Pharmaceutical
Sciences, Hiroshima International University, 5-1-1 Hirokoshingai, Kure, Hiroshima 737-0112, Japan
| |
Collapse
|