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Li F, Xu Y, Wang C, Wang C, Xie H, Xu Y, Chen P, Wang L. Efficient Synthesis of Substituted Pyrazoles Via [3+2] Cycloaddition Catalyzed By Lipase in Ionic Liquid. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.11.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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2
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Shankar M, Kalyani A, Anitha M, Siva Reddy A, Swamy KCK. Divergent Reactivity of Phosphorylated and Related Allenes: [4 + 2] Cycloaddition with 3,6-Diphenyltetrazine, Self-Addition Leading to Dimers and [Pd]-Complex Formation. J Org Chem 2022; 87:13683-13697. [PMID: 36197101 DOI: 10.1021/acs.joc.2c01337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Phosphorus-based naphthalenes are formed by self-dimerization-cum-cyclization of α-aryl allenylphosphonates or allenylphosphine oxides using catalytic Pd(OAc)2in the presence of PPh3 and Et3N . This reaction involves [4 + 2]-cycloaddition with the (β,γ) double bond of one allene as the dienophile; the double bonds at the α-aryl-(β',γ') group and (α,β)-carbons of the second allene act as the diene part. A subsequent proton shift also takes place. Upon treating allenylphosphine oxides with Pd(OAc)2 [stoichiometry 2:1] in the presence of PPh3/Ag2CO3, a [Pd]-complex is isolated and structurally characterized. This complex can be used as a catalyst for C-C bond-forming reactions of phosphorus-based allenes with 2-iodophenol. Densely substituted 3,6-diphenylpyridazines are conveniently obtained in excellent yields by a thermally induced regioselective Inverse Electron Demand Diels-Alder (IEDDA) reaction of allenes with 3,6-diphenyltetrazine, followed by a [1,3]-H shift.
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Affiliation(s)
- Mallepalli Shankar
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Adula Kalyani
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Mandala Anitha
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Alla Siva Reddy
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - K C Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
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3
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Hu W, Pi C, Hu D, Han X, Wu Y, Cui X. Rh(III)-Catalyzed Synthesis of Indazolo[2,3- a]quinolines: Vinylene Carbonate as C1 and C2 Building Blocks. Org Lett 2022. [DOI: 10.1021/acs.orglett.2c00580
expr 911091169 + 878873796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Affiliation(s)
- Wei Hu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Di Hu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiliang Han
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiuling Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
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4
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Hu W, Pi C, Hu D, Han X, Wu Y, Cui X. Rh(III)-Catalyzed Synthesis of Indazolo[2,3- a]quinolines: Vinylene Carbonate as C1 and C2 Building Blocks. Org Lett 2022; 24:2613-2618. [PMID: 35377649 DOI: 10.1021/acs.orglett.2c00580] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A rhodium-catalyzed cyclization of azobenzenes and vinylene carbonate via C-H bond activation to construct indazolo[2,3-a]quinolines has been developed. This protocol offers an efficient method for synthesis of the titled products in good yields with broad functional group tolerance. In this reaction, three C-C bonds and C-N bond are formed in one pot, and vinylene carbonate (VC) acts as C1 and C2 synthons as well as "vinylene transfer" agent and acylation reagent in the construction of target-fused heterocycles. Moreover, the products exhibit favorable fluorescence properties, which indicate their potential application as fluorescent materials and biosensors.
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Affiliation(s)
- Wei Hu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Di Hu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiliang Han
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiuling Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
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5
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Vahedpour T, Hamzeh‐Mivehroud M, Hemmati S, Dastmalchi S. Synthesis of 2‐Pyrazolines from Hydrazines: Mechanisms Explained. ChemistrySelect 2021. [DOI: 10.1002/slct.202101467] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Teymour Vahedpour
- Biotechnology Research Center Tabriz University of Medical Sciences Tabriz Iran
- Department of Medicinal Chemistry School of Pharmacy Tabriz University of Medical Sciences Tabriz Iran
| | - Maryam Hamzeh‐Mivehroud
- Biotechnology Research Center Tabriz University of Medical Sciences Tabriz Iran
- Department of Medicinal Chemistry School of Pharmacy Tabriz University of Medical Sciences Tabriz Iran
| | - Salar Hemmati
- Drug Applied Research Center Tabriz University of Medical Sciences Tabriz Iran
- Pharmaceutical Analysis Research Center Tabriz University of Medical Sciences Tabriz Iran
| | - Siavoush Dastmalchi
- Biotechnology Research Center Tabriz University of Medical Sciences Tabriz Iran
- Department of Medicinal Chemistry School of Pharmacy Tabriz University of Medical Sciences Tabriz Iran
- Faculty of Pharmacy Near East University Nicosia, North Cyprus, Mersin 10 Turkey
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6
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Tian YT, Zhang FG, Ma JA. Et3N-catalyzed direct cycloaddition reaction of allenoates with acceptor diazo compounds. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.131922] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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7
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Xiao MY, Chen Z, Zhang FG, Ma JA. Regioselective synthesis of carboxylic and fluoromethyl tetrazoles enabled by silver-catalyzed cycloaddition of diazoacetates and aryl diazonium salts. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131063] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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8
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Gallo RDC, Momo PB, Day DP, Burtoloso ACB. Catalytic Friedel-Crafts Alkylation of Electron Rich Aromatic Derivatives with α-Aryl Diazoacetates Mediated by Brønsted Acids. Org Lett 2020; 22:2339-2343. [PMID: 32133862 DOI: 10.1021/acs.orglett.0c00540] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The catalytic protonation of aryl diazoacetates by strong Brønsted acids, followed by a Friedel-Crafts alkylation reaction with electron rich aromatic compounds, is reported. The reaction provided in a direct fashion 24 geminal diarylacetates in yields of ≤92%.
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Affiliation(s)
- Rafael D C Gallo
- Instituto de Quı́mica de São Carlos, Universidade de São Paulo, CEP, São Carlos, SP 13560-970, Brazil
| | - Patrícia B Momo
- Instituto de Quı́mica de São Carlos, Universidade de São Paulo, CEP, São Carlos, SP 13560-970, Brazil
| | - David P Day
- Instituto de Quı́mica de São Carlos, Universidade de São Paulo, CEP, São Carlos, SP 13560-970, Brazil
| | - Antonio C B Burtoloso
- Instituto de Quı́mica de São Carlos, Universidade de São Paulo, CEP, São Carlos, SP 13560-970, Brazil
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Takeda N, Arisawa N, Miyamoto M, Kobori Y, Shinada T, Miyata O, Ueda M. Reagent-controlled regiodivergence in the [3,3]-sigmatropic rearrangement of N-(acyloxy)enamides. Org Chem Front 2019. [DOI: 10.1039/c9qo01109a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A regiodivergent [3,3]-sigmatropic rearrangement of N-(acyloxy)enamides based on the N–O bond cleavage is achieved by changing reaction conditions.
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Affiliation(s)
| | | | | | | | - Tetsuro Shinada
- Graduate School of Science
- Osaka City University
- Osaka 558-8585
- Japan
| | - Okiko Miyata
- Kobe Pharmaceutical University
- Kobe 658-858
- Japan
- Graduate School of Science
- Osaka City University
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