1
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Chang MY, Guo CR, Ho CH. Knoevenagel Condensation of Acetonedicarboxylates with Aldehydes. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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2
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Senior A, Ruffell K, Ball LT. meta-Selective C-H arylation of phenols via regiodiversion of electrophilic aromatic substitution. Nat Chem 2023; 15:386-394. [PMID: 36509853 DOI: 10.1038/s41557-022-01101-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/27/2022] [Indexed: 12/14/2022]
Abstract
Electrophilic aromatic substitution is among the most widely used mechanistic manifolds in organic chemistry. Access to certain substitution patterns is, however, precluded by intrinsic and immutable substituent effects that ultimately restrict the diversity of the benzenoid chemical space. Here we demonstrate that the established regioselectivity of electrophilic aromatic substitution can be overcome simply by diverting the key σ-complex intermediate towards otherwise inaccessible substitution products. This 'regiodiversion' strategy is realized through the development of a general and concise method for the meta-selective C-H arylation of sterically congested phenols. Consisting of a Bi(V)-mediated electrophilic arylation and a subsequent aryl migration/rearomatization, our process is orthogonal to conventional C-H activation and cross-coupling approaches, and does not require prefunctionalization of the substrate. Mechanistically informed applications in synthesis showcase its utility as a versatile and enabling route to highly functionalized, contiguously substituted aromatic building blocks that defy synthesis via existing methods.
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Affiliation(s)
- Aaron Senior
- School of Chemistry, University of Nottingham, Nottingham, UK
| | - Katie Ruffell
- School of Chemistry, University of Nottingham, Nottingham, UK
| | - Liam T Ball
- School of Chemistry, University of Nottingham, Nottingham, UK.
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3
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Huang M, Sun M, Zhang L, Yang X, Shi Y, Xing K, Deng H, Zhang Z, Liu D, Linxiang Zhao. Development of an Efficient New Route to PPARδ Agonist Fonadelpar: Formation of the C–C Bond by Claisen Condensation. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Min Huang
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Manman Sun
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Lanxin Zhang
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Xuebo Yang
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yuntao Shi
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Kun Xing
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Hongguang Deng
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Zhenwei Zhang
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Dan Liu
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Linxiang Zhao
- Key Laboratory of Structure-Based Drugs Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
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4
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Hsueh NC, Chang MY. Tandem cyclocondensation of 1,3-bis-sulfonylpropan-2-ones with arylaldehydes. One-pot synthesis of tris-sulfonyl 3-arylphenols. Org Biomol Chem 2022; 20:8471-8483. [DOI: 10.1039/d2ob01703b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
One-pot tandem piperidinium acetate-mediated cyclocondensation of 1,3-bis-sulfonylpropan-2-ones with arylaldehydes generates tris-sulfonyl 3-arylphenols in moderate to good yields in refluxing toluene under easy-operational reaction conditions.
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Affiliation(s)
- Nai-Chen Hsueh
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
- NPUST College of Professional Studies, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
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5
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Alyabyev SB, Beletskaya IP. Gold as a catalyst. Part II. Alkynes in the reactions of carbon–carbon bond formation. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4815] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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6
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Chen C, Chen X, Zhang X, Wang S, Rao W, Chan PWH. Gold‐Catalyzed Dehydrogenative Cycloisomerization of 1,4‐Enyne Esters to 3,5‐Disubstituted Phenol Derivatives. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701068] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Cuili Chen
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Xianxiao Chen
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Xiaoxiang Zhang
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Shifa Wang
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Weidong Rao
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Philip Wai Hong Chan
- School of Chemistry Monash University Clayton, Victoria 3800 Australia
- Department of Chemistry University of Warwick Coventry CV4 7AL U.K
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7
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Feberero C, Velasco R, Sanz R. ortho-Lithiation Reactions ofO-(3,n-Dihalophenyl)N,N-Diethylcarbamates: Synthesis of Dihalosalicylamides and 2,3,n-Trihalophenol Derivatives. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600933] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Claudia Feberero
- Área de Química Orgánica; Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Pza. Misael Bañuelos s/n 09001 Burgos Spain
| | - Rocío Velasco
- Área de Química Orgánica; Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Pza. Misael Bañuelos s/n 09001 Burgos Spain
| | - Roberto Sanz
- Área de Química Orgánica; Departamento de Química; Facultad de Ciencias; Universidad de Burgos; Pza. Misael Bañuelos s/n 09001 Burgos Spain
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8
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Yu G, Clive DLJ. Formation of meta-Substituted Phenols by Transition Metal-Free Aromatization: Use of 2-Bromocyclohex-2-en-1-ones. J Org Chem 2016; 81:8470-84. [PMID: 27563935 DOI: 10.1021/acs.joc.6b01653] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Addition of Grignard or other organometallic reagents to 2-halocyclohex-2-en-1-ones bearing an alkyl or aryl group at C-5, followed by mild acid treatment and exposure to 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) at room temperature, generates meta-substituted phenols in which the newly introduced meta substituent originates from the Grignard reagent. The range of effective organometallic reagents includes alkyl, allyl, alkynyl, aryl, and heteroaryl compounds including those with fluorine substituents. The initial halocyclohexenone can be deprotonated at C-6 and reacted with carbon, fluorine, or sulfur electrophiles before the Grignard addition so as to generate highly substituted phenols.
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Affiliation(s)
- Guojun Yu
- Chemistry Department, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
| | - Derrick L J Clive
- Chemistry Department, University of Alberta , Edmonton, Alberta T6G 2G2, Canada
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Qian J, Yi W, Huang X, Miao Y, Zhang J, Cai C, Zhang W. One-Pot Synthesis of 3,5-Disubstituted and Polysubstituted Phenols from Acyclic Precursors. Org Lett 2015; 17:1090-3. [DOI: 10.1021/ol503615n] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Jinlong Qian
- School
of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Wenbin Yi
- School
of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Xin Huang
- Department
of Chemistry, University of Massachusetts Boston, Boston, Massachusetts 02125, United States
| | - Yongbo Miao
- School
of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Junkai Zhang
- School
of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Chun Cai
- School
of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Wei Zhang
- Department
of Chemistry, University of Massachusetts Boston, Boston, Massachusetts 02125, United States
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10
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Chen Y, Lu Y, Zou Q, Chen H, Ma D. A Scalable Process to the Key Intermediate of Cilazapril, (S)-1-Benzyloxycarbonylhexahydropyridazine-3-carboxylic Acid, Through a Novel Cascade Course. Org Process Res Dev 2013. [DOI: 10.1021/op400155u] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yu Chen
- Shanghai AoBo Bio-pharmaceutical Technology Co., Ltd., No. 1011, Halei Road, Zhangjiang High-Tech
Park, Shanghai 201203, P.R. China
| | - Yuwei Lu
- Shanghai AoBo Bio-pharmaceutical Technology Co., Ltd., No. 1011, Halei Road, Zhangjiang High-Tech
Park, Shanghai 201203, P.R. China
| | - Qing Zou
- Shanghai AoBo Bio-pharmaceutical Technology Co., Ltd., No. 1011, Halei Road, Zhangjiang High-Tech
Park, Shanghai 201203, P.R. China
| | - Huansheng Chen
- Shanghai AoBo Bio-pharmaceutical Technology Co., Ltd., No. 1011, Halei Road, Zhangjiang High-Tech
Park, Shanghai 201203, P.R. China
| | - Dawei Ma
- Shanghai AoBo Bio-pharmaceutical Technology Co., Ltd., No. 1011, Halei Road, Zhangjiang High-Tech
Park, Shanghai 201203, P.R. China
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