1
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Takimoto M, Liu M, Nishiura M, Hou Z. Regioselective Benzylic C–H Alumination and Further Functionalization of 2-Alkylpyridines by Yttrium Catalyst. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04396] [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)
- Masanori Takimoto
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mingyu Liu
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- College of Chemistry, Nankai University, 94 Weijin Rd., Tianjin 300071, China
| | - Masayoshi Nishiura
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Zhaomin Hou
- Organometallic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Advanced Catalysis Research Group, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
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2
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Tamilthendral V, Balamurugan G, Ramesh R, Malecki JG. Ru(II)–NNO pincer‐type complexes catalysed E‐olefination of alkyl‐substituted quinolines/pyrazines utilizing primary alcohols. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Veerappan Tamilthendral
- Centre for Organometallic Chemistry, School of Chemistry Bharathidasan University Tiruchirappalli Tamil Nadu India
| | - Gunasekaran Balamurugan
- Centre for Organometallic Chemistry, School of Chemistry Bharathidasan University Tiruchirappalli Tamil Nadu India
| | - Rengan Ramesh
- Centre for Organometallic Chemistry, School of Chemistry Bharathidasan University Tiruchirappalli Tamil Nadu India
| | - Jan Grzegorz Malecki
- Department of Crystallography, Institute of Chemistry University of Silesia Katowice Poland
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3
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Jiang T, Liu H, Zhang H, Huang H. Catalytic Benzylation Reactions: From C—H Bond Activation to C—N Bond Activation. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000567] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tianxiao Jiang
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei Anhui 230026 China
| | - Hongchi Liu
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei Anhui 230026 China
| | - Haocheng Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei Anhui 230026 China
| | - Hanmin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, and Department of Chemistry, University of Science and Technology of China, Hefei Anhui 230026 China
- Center for Excellence in Molecular Synthesis of CAS, Hefei Anhui 230026 China
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4
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Kaur M, Van Humbeck JF. Recent trends in catalytic sp 3 C-H functionalization of heterocycles. Org Biomol Chem 2020; 18:606-617. [PMID: 31912069 DOI: 10.1039/c9ob01559k] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Heterocycles are a ubiquitous substructure in organic small molecules designed for use in materials and medicines. Recent work in catalysis has focused on enabling access to new heterocycle structures by sp3 C-H functionalization on alkyl side-chain substituents-especially at the heterobenzylic position-with more than two hundred manuscripts published just within the last ten years. Rather than describing in detail each of these reports, in this mini-review we attempt to highlight gaps in existing techniques. A semi-quantitative overview of ongoing work strongly suggests that several specific heterocycle types and bond formations outside of C-C, C-N, and C-O have been almost completely overlooked.
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Affiliation(s)
- Milanpreet Kaur
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4.
| | - Jeffrey F Van Humbeck
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4.
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5
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Rayaroth A, Singh RK, A. V. K, Hari K, Kaliyamoorthy A. Base-promoted 1,6-conjugate addition of alkylazaarenes to para-quinone methides. Org Biomol Chem 2020; 18:3354-3359. [DOI: 10.1039/d0ob00419g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1,1,2-Triarylethanes embedded with an azaarene unit were prepared in a single step at ambient temperature via the sodium hexamethyldisilazide mediated 1,6-conjugate addition of unactivated alkylazaarenes on para-quinone methides (p-QMs).
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Affiliation(s)
- Amritha Rayaroth
- School of Chemistry
- Indian Institute of Science Education and Research Thiruvananthapuram
- India
| | - Rajat Kumar Singh
- School of Chemistry
- Indian Institute of Science Education and Research Thiruvananthapuram
- India
| | - Kalyanakrishnan A. V.
- School of Chemistry
- Indian Institute of Science Education and Research Thiruvananthapuram
- India
| | - Krishna Hari
- School of Chemistry
- Indian Institute of Science Education and Research Thiruvananthapuram
- India
| | - Alagiri Kaliyamoorthy
- School of Chemistry
- Indian Institute of Science Education and Research Thiruvananthapuram
- India
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6
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Copper-catalyzed aerobic oxidative cyclization protocol for the synthesis of quinazolines via amination of C(sp3)-H bonds of methylazaarenes. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130783] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Das J, Vellakkaran M, Sk M, Banerjee D. Iron-Catalyzed Coupling of Methyl N-Heteroarenes with Primary Alcohols: Direct Access to E-Selective Olefins. Org Lett 2019; 21:7514-7518. [DOI: 10.1021/acs.orglett.9b02793] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jagadish Das
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Mari Vellakkaran
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Motahar Sk
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
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8
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Liang E, Wang J, Wu Y, Huang L, Yao X, Tang X. Direct Alkenylation of 2‐Methylquinolines with Aldehydes through Synergistic Catalysis of 1,3‐Dimethylbarbituric Acid and HOAc. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900351] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- En Liang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical SciencesSouthern Medical University 1023 South Shatai Road, Baiyun District Guangzhou 510515 People's Republic of China
| | - Junqi Wang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical SciencesSouthern Medical University 1023 South Shatai Road, Baiyun District Guangzhou 510515 People's Republic of China
| | - Yinrong Wu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical SciencesSouthern Medical University 1023 South Shatai Road, Baiyun District Guangzhou 510515 People's Republic of China
| | - Liangbin Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical EngineeringSouth China University of Technology 381 Wushan Road Guangzhou 510640 People's Republic of China
| | - Xingang Yao
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical SciencesSouthern Medical University 1023 South Shatai Road, Baiyun District Guangzhou 510515 People's Republic of China
| | - Xiaodong Tang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical SciencesSouthern Medical University 1023 South Shatai Road, Baiyun District Guangzhou 510515 People's Republic of China
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9
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Yamashita Y, Minami K, Kobayashi S. Catalytic Addition Reactions of Alkylazaarenes to Vinylsilanes. CHEM LETT 2018. [DOI: 10.1246/cl.180132] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Yasuhiro Yamashita
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Kodai Minami
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shū Kobayashi
- Department of Chemistry, School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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10
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Tong M, Wang S, Zhuang J, Qin C, Li H, Wang W. Direct Access of the Chiral Quinolinyl Core of Cinchona Alkaloids via a Brønsted Acid and Chiral Amine Co-catalyzed Chemo- and Enantioselective α-Alkylation of Quinolinylmethanols with Enals. Org Lett 2018; 20:1195-1199. [PMID: 29411985 DOI: 10.1021/acs.orglett.8b00118] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A strategy for the facile construction of the chiral quinolinylmethanolic structure, a core featured in cinchona alkaloids, is reported. A new reactivity is harnessed by TfOH-promoted chemoselective activation of α-C-H over O-H bond in quinolinylmethanols. The new reactivity is successfully engineered with an iminium catalysis in a synergistic manner to create a powerful conjugate addition-cyclization cascade process for synthesis of chiral quinoline derived γ-butyrolactones in good yields and with good to excellent enantioselectivities. The method enables the first total synthesis of natural product broussonetine in three steps.
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Affiliation(s)
- Mengchao Tong
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology , 130 Mei-long Road, Shanghai 200237, China
| | - Sinan Wang
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology , 130 Mei-long Road, Shanghai 200237, China
| | - Jinchen Zhuang
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology , 130 Mei-long Road, Shanghai 200237, China
| | - Cong Qin
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology , 130 Mei-long Road, Shanghai 200237, China
| | - Hao Li
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology , 130 Mei-long Road, Shanghai 200237, China
| | - Wei Wang
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology , 130 Mei-long Road, Shanghai 200237, China.,Department of Chemistry and Chemical Biology, University of New Mexico , Albuquerque, New Mexico 87131-0001, United States
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11
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Rana J, Babu R, Subaramanian M, Balaraman E. Ni-Catalyzed dehydrogenative coupling of primary and secondary alcohols with methyl-N-heteroaromatics. Org Chem Front 2018. [DOI: 10.1039/c8qo00764k] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Here we report the first base-metal catalyzed dehydrogenative coupling of primary (aromatic, heteroaromatic, and aliphatic) and secondary alcohols with methyl-N-heteroaromatics to form various C(sp3)-alkylated N-heteroaromatics.
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Affiliation(s)
- Jagannath Rana
- Organic Chemistry Division
- Dr. Homi Bhabha Road
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune - 411008
- India
| | - Reshma Babu
- Organic Chemistry Division
- Dr. Homi Bhabha Road
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune - 411008
- India
| | - Murugan Subaramanian
- Organic Chemistry Division
- Dr. Homi Bhabha Road
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune - 411008
- India
| | - Ekambaram Balaraman
- Organic Chemistry Division
- Dr. Homi Bhabha Road
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune - 411008
- India
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12
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Fukumoto Y, Hirano M, Matsubara N, Chatani N. Ir4(CO)12-Catalyzed Benzylic C(sp3)–H Silylation of 2-Alkylpyridines with Hydrosilanes Leading to 2-(1-Silylalkyl)pyridines. J Org Chem 2017; 82:13649-13655. [DOI: 10.1021/acs.joc.7b02375] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yoshiya Fukumoto
- Department of Applied Chemistry, Faculty
of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masaya Hirano
- Department of Applied Chemistry, Faculty
of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Nao Matsubara
- 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
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13
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Xiao M, Ren D, Xu L, Li SS, Yu L, Xiao J. SN1-Type Alkylation of N-Heteroaromatics with Alcohols. Org Lett 2017; 19:5724-5727. [DOI: 10.1021/acs.orglett.7b02294] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mingyan Xiao
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Didi Ren
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Lubin Xu
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Shuai-Shuai Li
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Liping Yu
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
| | - Jian Xiao
- College of Chemistry and
Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, China
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14
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Pathan MY, Chavan SS, Shaikh TMY, Thorat SH, Gonnade RG, Mulla SAR. Facile One-Pot Multi-Component Synthesis of Spirooxindoles and 3, 3’-Disubstituted Oxindoles via sp3
C-H Activation/Functionalization of Azaarenes. ChemistrySelect 2017. [DOI: 10.1002/slct.201701507] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Mohsinkhan Y. Pathan
- Chemical Engineering and Process Development Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan Pune - 411008 India
| | - Santosh S. Chavan
- Chemical Engineering and Process Development Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan Pune - 411008 India
| | - Taufeekaslam M. Y. Shaikh
- Chemical Engineering and Process Development Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan Pune - 411008 India
| | - Shridhar H. Thorat
- Physical and Materials Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan Pune - 411008 India
| | - Rajesh G. Gonnade
- Physical and Materials Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan Pune - 411008 India
| | - Shafeek A. R. Mulla
- Chemical Engineering and Process Development Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan Pune - 411008 India
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15
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Abstract
Amines such as 1,2,3,4-tetrahydroisoquinoline undergo redox-neutral annulations with 2-alkylquinoline-3-carbaldehydes as well as the corresponding 4-alkyl isomers and pyridine analogues. These processes involve dual C-H bond functionalization. Acetic acid is used as a cosolvent and acts as the sole promoter of these transformations.
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Affiliation(s)
- Zhengbo Zhu
- Department of Chemistry and
Chemical Biology, Rutgers, The State University
of New Jersey, Piscataway, New Jersey 08854, United States
| | - Daniel Seidel
- Department of Chemistry and
Chemical Biology, Rutgers, The State University
of New Jersey, Piscataway, New Jersey 08854, United States
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16
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Li J, Qin C, Yu Y, Fan H, Fu Y, Li H, Wang W. Lewis Acid-Catalyzed C(sp3)-C(sp3) Bond Forming Cyclization Reactions for the Synthesis of Tetrahydroprotoberberine Derivatives. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601423] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jianjun Li
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Cong Qin
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Yang Yu
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Huaqiang Fan
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Yiwei Fu
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Hao Li
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Wei Wang
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 People's Republic of China
- Department of Chemistry and Chemical Biology; University of New Mexico; Albuquerque NM 87131-0001 USA
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17
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Suzuki H, Igarashi R, Yamashita Y, Kobayashi S. Catalytic Direct-type 1,4-Addition Reactions of Alkylazaarenes. Angew Chem Int Ed Engl 2017; 56:4520-4524. [DOI: 10.1002/anie.201611374] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 02/01/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Hirotsugu Suzuki
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo Japan
| | - Ryo Igarashi
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo Japan
| | - Yasuhiro Yamashita
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo Japan
| | - Shū Kobayashi
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo Japan
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18
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Suzuki H, Igarashi R, Yamashita Y, Kobayashi S. Catalytic Direct-type 1,4-Addition Reactions of Alkylazaarenes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611374] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Hirotsugu Suzuki
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo Japan
| | - Ryo Igarashi
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo Japan
| | - Yasuhiro Yamashita
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo Japan
| | - Shū Kobayashi
- Department of Chemistry; School of Science; The University of Tokyo; Hongo, Bunkyo-ku Tokyo Japan
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19
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Feng TY, Li HX, Young DJ, Lang JP. Ligand-Free RuCl3-Catalyzed Alkylation of Methylazaarenes with Alcohols. J Org Chem 2017; 82:4113-4120. [DOI: 10.1021/acs.joc.6b03095] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Tong-Yu Feng
- State
and Local Joint Engineering Laboratory for Novel Functional Polymeric
Materials, College of Chemistry, Chemical Engineering and Materials
Science, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
| | - Hong-Xi Li
- State
and Local Joint Engineering Laboratory for Novel Functional Polymeric
Materials, College of Chemistry, Chemical Engineering and Materials
Science, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
| | - David James Young
- Faculty
of Science and Engineering, University of the Sunshine Coast, Maroochydore
DC, Queensland 4558, Australia
| | - Jian-Ping Lang
- State
and Local Joint Engineering Laboratory for Novel Functional Polymeric
Materials, College of Chemistry, Chemical Engineering and Materials
Science, Soochow University, Suzhou 215123, Jiangsu, People’s Republic of China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
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20
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Synergistic Diastereo‐ and Enantioselective Functionalization of Unactivated Alkyl Quinolines with α,β‐Unsaturated Aldehydes. Angew Chem Int Ed Engl 2017; 56:1634-1638. [DOI: 10.1002/anie.201611306] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Indexed: 12/17/2022]
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21
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Meazza M, Tur F, Hammer N, Jørgensen KA. Synergistic Diastereo- and Enantioselective Functionalization of Unactivated Alkyl Quinolines with α,β-Unsaturated Aldehydes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611306] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Marta Meazza
- Department of Chemistry; Aarhus University; 8000 Aarhus C Denmark
| | - Fernando Tur
- Department of Chemistry; Aarhus University; 8000 Aarhus C Denmark
| | - Niels Hammer
- Department of Chemistry; Aarhus University; 8000 Aarhus C Denmark
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22
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Nagaraju D, Rajanarendar E, Praveen Kumar P, Nagi Reddy M. Water-mediated and promoted eco-friendly one-pot synthesis of azaarene substituted isoxazoles. NEW J CHEM 2017. [DOI: 10.1039/c7nj01165b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
An efficient and green approach for the sp3 C–H bond functionalization of 2-methyl azaarenes to 3-methyl-4-nitro-5-styrylisoxazoles in water has been described.
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Affiliation(s)
| | | | - Pittala Praveen Kumar
- Division of Natural Products Chemistry (CSIR)
- Indian Institute of Chemical Technology
- Hyderabad
- India
| | - Modugu Nagi Reddy
- Division of Natural Products Chemistry (CSIR)
- Indian Institute of Chemical Technology
- Hyderabad
- India
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23
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Dong DQ, Zhang H, Wang ZL. Synthesis of benzyl esters from the commercially available alcohols catalyzed by TBAI via C(sp3)–H bond functionalization. RSC Adv 2017. [DOI: 10.1039/c6ra26387a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The direct esterification of alcohol catalyzed by TBAI via C(sp3)–H bond functionalization was achieved under mild and clean conditions with good to excellent yields.
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Affiliation(s)
- Dao-Qing Dong
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- P. R. China
| | - Hui Zhang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- P. R. China
| | - Zu-Li Wang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- P. R. China
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24
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Facile synthesis of 2-alkenylazaarenes via dehydrative coupling of 2-methylazaarenes with aldehydes ‘on water’. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.065] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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25
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Mallepalli R, Vennam DKR, Perali RS. PEG-400 mediated sp 3 C H functionalization of aza-arenes: an enroute to the synthesis of 2-(2-(6-methylpyridin/quinolin-2-yl)-1-phenylethyl)malononitriles. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.083] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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26
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Wang H, Huang H. Transition-Metal-Catalyzed Redox-Neutral and Redox-Green C-H Bond Functionalization. CHEM REC 2016; 16:1807-18. [DOI: 10.1002/tcr.201500274] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Hongli Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics Chinese Academy of Sciences; Lanzhou 730000 P. R. China
| | - Hanmin Huang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics Chinese Academy of Sciences; Lanzhou 730000 P. R. China
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27
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Wang M, Gao B, Huang H. Catalytic nucleophilic addition of terminal alkynes to α,β-unsaturated-γ-lactams. CHINESE JOURNAL OF CATALYSIS 2016. [DOI: 10.1016/s1872-2067(15)61057-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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28
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Jamal Z, Teo YC, Lim GS. Direct alkenylation of alkylazaarenes with aldehydes through C(sp3)–H functionalization under catalytic InCl3 activation. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.03.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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29
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Min L, Pan B, Gu Y. Synthesis of Quinoline-Fused 1-Benzazepines through a Mannich-Type Reaction of a C,N-Bisnucleophile Generated from 2-Aminobenzaldehyde and 2-Methylindole. Org Lett 2016; 18:364-7. [DOI: 10.1021/acs.orglett.5b03287] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Lijun Min
- Key
Laboratory of Material Chemistry for Energy Conversion and Storage,
Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Bin Pan
- Key
Laboratory of Material Chemistry for Energy Conversion and Storage,
Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yanlong Gu
- Key
Laboratory of Material Chemistry for Energy Conversion and Storage,
Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Lanzhou 730000, China
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30
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Wang M, Gao B, Huang H. Catalytic nucleophilic addition of olefinic CH bond to α,β-unsaturated-γ-lactams. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.08.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Konovalova VV, Shklyaev YV, Maslivets AN. Reaction of 3-aroylpyrrolo[1,2-a]quinoxaline-1,2,4(5H)-triones with quinaldine and substituted quinoxalines. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2015. [DOI: 10.1134/s1070428015050176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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32
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Hao SH, Zhang XY, Dong DQ, Wang ZL. Alumina-supported heteropoly acid: An efficient catalyst for the synthesis of azaarene substituted 3-hydroxy-2-oxindole derivatives via C(sp3)H bond functionalization. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2014.12.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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33
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Yang L, Huang H. Transition-metal-catalyzed direct addition of unactivated C-H bonds to polar unsaturated bonds. Chem Rev 2015; 115:3468-517. [PMID: 25749375 DOI: 10.1021/cr500610p] [Citation(s) in RCA: 617] [Impact Index Per Article: 68.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Lei Yang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Hanmin Huang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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34
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Lu B, Lu Q, Zhuang S, Cheng J, Huang B. Bi(OTf)3-catalyzed C–H bond functionalization of azaarenes for the facile access to oxindoles featuring quaternary carbon centers. RSC Adv 2015. [DOI: 10.1039/c4ra14144j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bi(OTf)3-catalyzed sp3 C–H functionalization of 2-alkyl azaarenes to isatylidene malononitriles has been achieved to give oxindoles containing an all-carbon quaternary center.
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Affiliation(s)
- Beili Lu
- College of Material Engineering
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- P. R. China
| | - Qilin Lu
- College of Material Engineering
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- P. R. China
| | - Senyang Zhuang
- College of Material Engineering
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- P. R. China
| | - Jiajia Cheng
- College of Chemistry
- Fuzhou University
- Fuzhou 350116
- P. R. China
| | - Biao Huang
- College of Material Engineering
- Fujian Agriculture and Forestry University
- Fuzhou 350002
- P. R. China
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35
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Chavan SS, Pathan MY, Mulla SAR. Solvent free one-pot multi-component synthesis of β-azaarene substituted ketones via a Sn-catalyzed C(sp3)–H functionalization of 2-alkylazaarenes. RSC Adv 2015. [DOI: 10.1039/c5ra20728b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A tin-catalyzed solvent free one-pot multi-component cascade reaction strategy for the efficient synthesis of β-azaarene substituted ketones via an aldol–Michael addition/C(sp3)–H functionalization of 2-alkylazaarenes has been developed.
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Affiliation(s)
- Santosh S. Chavan
- Chemical Engineering and Process Development Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Mohsinkhan Y. Pathan
- Chemical Engineering and Process Development Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Shafeek A. R. Mulla
- Chemical Engineering and Process Development Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
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36
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Satish Kumar N, Chandrasekhara Rao L, Jagadeesh Babu N, Meshram HM. A domino green method for the rapid synthesis of novel fused isoquinoline derivatives via Knoevenagel/Michael/cyclization reactions on aqueous media and their photophysical properties. RSC Adv 2015. [DOI: 10.1039/c5ra15948b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An expedient, eco-friendly and green-protocol has been developed for the synthesis of novel 4-imino-2-aryl-4H-pyrido[2,1-a]isoquinoline-3-carbonitrile derivatives via Knoevenagel/Michael/cyclisation reactions in one pot under catalyst-free conditions on aqueous media.
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Affiliation(s)
- Nandigama Satish Kumar
- Medicinal Chemistry and Pharmacology Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - L. Chandrasekhara Rao
- Medicinal Chemistry and Pharmacology Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - N. Jagadeesh Babu
- Laboratory of X-ray Crystallography
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - H. M. Meshram
- Medicinal Chemistry and Pharmacology Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
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37
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Vanjari R, Singh KN. Utilization of methylarenes as versatile building blocks in organic synthesis. Chem Soc Rev 2015; 44:8062-96. [DOI: 10.1039/c5cs00003c] [Citation(s) in RCA: 135] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review attempts to describe the latest developments in the utilisation of methylarenes adopting C–H functionalization strategies and covers all the developments until March 2015.
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Affiliation(s)
- Rajeshwer Vanjari
- Department of Chemistry (Centre of Advanced Study)
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005
- India
| | - Krishna Nand Singh
- Department of Chemistry (Centre of Advanced Study)
- Faculty of Science
- Banaras Hindu University
- Varanasi-221005
- India
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38
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Wang ZL. Magnetically separable CuFe2O4 nanoparticles as a recoverable catalyst for the addition reaction of C(sp3)–H bond of azaarenes to aldehydes. RSC Adv 2015. [DOI: 10.1039/c4ra14486d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A green and efficient method for CuFe2O4-catalyzed C(sp3)–H functionalization of 2-alkyl azaarenes has been developed. The catalyst can be magnetically recycled and reused for eight times without significant decrease in catalytic activity.
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Affiliation(s)
- Zu-Li Wang
- College of Chemistry and Pharmaceutical Sciences
- Qingdao Agricultural University
- Qingdao
- P. R. China
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39
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Xu L, Shao Z, Wang L, Zhao H, Xiao J. Catalyst-free synthesis of (E)-2-alkenylquinoline derivatives via C(sp3)-H functionalization of 2-methylquinolines. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.079] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Jamal Z, Teo YC, Wong LK. Functionalization of the Benzylic C-H Bonds in Azaarenes by Cobalt-Catalyzed 1,4-Addition to Enones. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403203] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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41
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42
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Mao D, Hong G, Wu S, Liu X, Yu J, Wang L. Lewis-Acid-Catalyzed Benzylic Reactions of 2-Methylazaarenes with Aldehydes. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400073] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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43
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Xu L, Shao Z, Wang L, Xiao J. Tandem sp3 C-H functionlization/decarboxylation of 2-alkylazaarenes with coumarin-3-carboxylic acids. Org Lett 2014; 16:796-9. [PMID: 24437668 DOI: 10.1021/ol403541g] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The catalyst-free sp(3) C-H functionalization of 2-alkylazaarenes has been achieved in the reaction with (thio)coumarin-3-carboxylic acids. Followed by a tandem decarboxylation, this method provides facile synthesis of biologically important azaarene-substituted 3,4-dihydro(thio)coumarins in a single step in high yields.
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Affiliation(s)
- Lubin Xu
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University , Qingdao 266109, China
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44
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Kumari K, Allam BK, Singh KN. A simple and sustainable tetrabutylammonium fluoride (TBAF)-catalyzed synthesis of azaarene-substituted 3-hydroxy-2-oxindoles through sp3 C–H functionalization. RSC Adv 2014. [DOI: 10.1039/c3ra47332e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
A green, practical, and metal-free protocol for direct addition of α-and γ-alkylazaarenes to isatins has been developed for the synthesis of biologically important azaarene-substituted 3-hydroxy-2-oxindoles in good to excellent yields.
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Affiliation(s)
- Kumkum Kumari
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221005, India
| | - Bharat Kumar Allam
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221005, India
| | - Krishna Nand Singh
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi 221005, India
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45
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Best D, Lam HW. C═N-Containing Azaarenes as Activating Groups in Enantioselective Catalysis. J Org Chem 2013; 79:831-45. [DOI: 10.1021/jo402414k] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Daniel Best
- EaStCHEM, School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings,
West Mains Road, Edinburgh EH9 3JJ, United Kingdom
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
| | - Hon Wai Lam
- EaStCHEM, School of Chemistry, University of Edinburgh, Joseph Black Building, The King’s Buildings,
West Mains Road, Edinburgh EH9 3JJ, United Kingdom
- School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom
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46
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Xie P, Xia C, Huang H. Palladium-Catalyzed Oxidative Aminocarbonylation: A New Entry to Amides via C–H Activation. Org Lett 2013; 15:3370-3. [DOI: 10.1021/ol401419u] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Pan Xie
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Chungu Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Hanmin Huang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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47
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Du J, Zhou B, Yang Y, Li Y. Rhodium(III)-Catalyzed Synthesis of Cyclopenta[b]pyrroles from 1,2-Diketones, 2-Aminopyridine, and Alkynes. Chem Asian J 2013; 8:1386-90. [DOI: 10.1002/asia.201300341] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 04/05/2013] [Indexed: 01/13/2023]
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48
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Zhang YG, Xu JK, Li XM, Tian SK. Oxidative Olefination of Secondary Amines with Carbon Nucleophiles. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300368] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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49
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Hou W, Zhou B, Yang Y, Feng H, Li Y. Rh(III)-catalyzed addition of alkenyl C-H bond to isocyanates and intramolecular cyclization: direct synthesis 5-ylidenepyrrol-2(5H)-ones. Org Lett 2013; 15:1814-7. [PMID: 23560588 DOI: 10.1021/ol4003674] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The rhodium-catalyzed addition of an alkenyl C-H bond to isocyanates via sp(2) C-H bond activation followed by an intramolecular cyclization is described. This atom-economic and catalytic reaction affords a simple and straightforward access to biologically relevant 5-ylidene pyrrol-2(5H)-ones and can be carried out under mild and neutral conditions in the absence of any additives and environmentally hazardous waste production.
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Affiliation(s)
- Wei Hou
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Zhang Jiang Hi-Tech Park, Shanghai 201203, PR China
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50
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Zhou B, Hou W, Yang Y, Li Y. Rhodium(III)-Catalyzed Amidation of Aryl KetoneO-Methyl Oximes with Isocyanates by CH Activation: Convergent Synthesis of 3-Methyleneisoindolin-1-ones. Chemistry 2013; 19:4701-6. [DOI: 10.1002/chem.201204448] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Indexed: 11/09/2022]
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