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Sá MM, Maximiano AP, Ramos GS, Marques MV. Functionalized Cyclopropanes as Versatile Intermediates for the Diversity-Oriented Synthesis of γ-Lactones, γ-Lactams and δ-Lactams. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1389-1203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AbstractA two-step procedure for the preparation of cyclopropanecarboxaldehyde-1,1-diester from a γ,δ-epoxyester and its synthetic versatility are described herein. The epoxide ring-opening/cyclopropanation process occurs in the presence of Mg(ClO4)2 under heating, resulting in cyclopropanemethanol-1,1-diester in 65% yield. A mild TEMPO-mediated oxidation of this substrate readily generated the corresponding aldehyde in 75% yield, which was applied in the one-pot synthesis of four cyclopropylidene-γ-lactams and three δ-lactams. In addition, vinylcyclopropanes were obtained through the Wittig reaction of the aldehyde with phosphonium salts and used as precursors for tetrahydrofurans.
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Affiliation(s)
- Marcus M. Sá
- MESOLab (Laboratory of Methodology and Organic Synthesis), Departamento de Química, Universidade Federal de Santa Catarina
| | - Adrielle P. Maximiano
- MESOLab (Laboratory of Methodology and Organic Synthesis), Departamento de Química, Universidade Federal de Santa Catarina
| | - Giovana S. Ramos
- MESOLab (Laboratory of Methodology and Organic Synthesis), Departamento de Química, Universidade Federal de Santa Catarina
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Maximiano AP, Sá MM. Stereoselective Synthesis of Cyclopropylidene Iminolactones and Functionalized Cyclopropanecarboxamides Mediated by Triflic Acid. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900931] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Adrielle P. Maximiano
- Departamento de Química; Universidade Federal de Santa Catarina; SC 88040-900 Florianópolis Brazil
| | - Marcus M. Sá
- Departamento de Química; Universidade Federal de Santa Catarina; SC 88040-900 Florianópolis Brazil
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Ai C, Zhu F, Wang Y, Yan Z, Lin S. SO 2F 2-Mediated Epoxidation of Olefins with Hydrogen Peroxide. J Org Chem 2019; 84:11928-11934. [PMID: 31436983 DOI: 10.1021/acs.joc.9b01784] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An inexpensive, mild, and highly efficient epoxidation protocol has been developed involving bubbling SO2F2 gas into a solution of olefin, 30% aqueous hydrogen peroxide, and 4 N aqueous potassium carbonate in 1,4-dioxane at room temperature for 1 h with the formation of the corresponding epoxides in good to excellent yields. The novel SO2F2/H2O2/K2CO3 epoxidizing system is suitable to a variety of olefinic substrates including electron-rich and electron-deficient ones.
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Affiliation(s)
- Chengmei Ai
- College of Chemistry , Nanchang University, Nanchang 330031 , P. R. China
| | - Fuyuan Zhu
- College of Chemistry , Nanchang University, Nanchang 330031 , P. R. China
| | - Yanmei Wang
- College of Chemistry , Nanchang University, Nanchang 330031 , P. R. China
| | - Zhaohua Yan
- College of Chemistry , Nanchang University, Nanchang 330031 , P. R. China
| | - Sen Lin
- College of Chemistry , Nanchang University, Nanchang 330031 , P. R. China
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4
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Fujita H, Nishikawa R, Sasamoto O, Kitamura M, Kunishima M. Substitution of the Dimethylamino Group in Gramines and One-Pot Cyclization to Tetrahydro-β-carbolines Using a Triazine-Based Activating Agent. J Org Chem 2019; 84:8380-8391. [DOI: 10.1021/acs.joc.9b00039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hikaru Fujita
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Riho Nishikawa
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Ozora Sasamoto
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Masanori Kitamura
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Munetaka Kunishima
- Faculty of Pharmaceutical Sciences, Institute of Medical, Pharmaceutical, and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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5
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Wu X, Chen R, Jin X, Wu D, Tong G, Zhu X. Role transition of PNIPAM ionic microgels in dispersion polymerization by changing the monomer type. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.05.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Aguiar AR, Alvarenga ES, Oliveira RP, Carneiro VMT, Moura LG. Syntheses of epoxides, and structural analysis of (E)N-hexyl-3-(trans-3-methyloxiran-2-yl)prop-2-enamide by spectroscopic techniques and DFT calculations. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.04.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Stockton KP, Greatrex BW. Synthesis of enantiopure cyclopropyl esters from (−)-levoglucosenone. Org Biomol Chem 2016; 14:7520-8. [DOI: 10.1039/c6ob00933f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Levoglucosenone was converted into the GABAC agonists (−)-TAMP, (+)-TAMP and an advanced intermediate used for the synthesis of the selective glutamate receptor antagonist PCCG-4.
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Affiliation(s)
- Kieran P. Stockton
- School of Science and Technology
- University of New England
- Armidale
- Australia
| | - Ben W. Greatrex
- School of Science and Technology
- University of New England
- Armidale
- Australia
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Lapinsky DJ. Three-Membered Ring Systems. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/b978-0-08-100024-3.00003-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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Oliveira CC, Marques MV, Godoi MN, Regiani T, Santos VG, Santos EAFD, Eberlin MN, Sá MM, Correia CRD. Chemo-, Regio- and Stereoselective Heck Arylation of Allylated Malonates: Mechanistic Insights by ESI-MS and Synthetic Application toward 5-Arylmethyl-γ-lactones. Org Lett 2014; 16:5180-3. [DOI: 10.1021/ol502529v] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Caio C. Oliveira
- Instituto
de Química, Universidade Estadual de Campinas-UNICAMP, Campinas, SP 13083-970, Brazil
| | - Marcelo V. Marques
- Departamento
de Química, Universidade Federal de Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Marla N. Godoi
- Laboratório
ThoMSon de Espectrometria de Massas, Universidade Estadual de Campinas-UNICAMP, Campinas, SP 13083-970, Brazil
| | - Thaís Regiani
- Laboratório
ThoMSon de Espectrometria de Massas, Universidade Estadual de Campinas-UNICAMP, Campinas, SP 13083-970, Brazil
| | - Vanessa G. Santos
- Laboratório
ThoMSon de Espectrometria de Massas, Universidade Estadual de Campinas-UNICAMP, Campinas, SP 13083-970, Brazil
| | | | - Marcos N. Eberlin
- Laboratório
ThoMSon de Espectrometria de Massas, Universidade Estadual de Campinas-UNICAMP, Campinas, SP 13083-970, Brazil
| | - Marcus M. Sá
- Departamento
de Química, Universidade Federal de Santa Catarina, Florianópolis, SC 88040-900, Brazil
| | - Carlos R. D. Correia
- Instituto
de Química, Universidade Estadual de Campinas-UNICAMP, Campinas, SP 13083-970, Brazil
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