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Liu Y, Hu H, Wang X, Zhi S, Kan Y, Wang C. Synthesis of Pyrrole via a Silver-Catalyzed 1,3-Dipolar Cycloaddition/Oxidative Dehydrogenative Aromatization Tandem Reaction. J Org Chem 2017; 82:4194-4202. [PMID: 28326778 DOI: 10.1021/acs.joc.7b00180] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Pyrroles are an important group of heterocyclic compounds with a wide range of interesting properties, which have resulted in numerous applications in a variety of fields. Despite the importance of these compounds, there have been few reports in the literature pertaining to the synthesis of pyrroles from simple alkenes using a one-pot sequential 1,3-dipolar cycloaddition/aromatization reaction sequence. Herein, we report the development of a benzoyl peroxide-mediated oxidative dehydrogenative aromatization reaction for the construction of pyrroles. We subsequently developed a one-pot tandem reaction that combined this new method with a well-defined silver-catalyzed 1,3-dipolar cycloaddition reaction, thereby providing a practical method for the synthesis of multisubstituted pyrroles from easy available alkenes. The mechanism of this oxidative dehydrogenative aromatization reaction was also examined in detail.
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Affiliation(s)
- Yan Liu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University , Huaian 223300, P. R. China.,School of Material Science and Engineering, Southwest University of Science and Technology , Mianyang 621010, P. R. China
| | - Huayou Hu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University , Huaian 223300, P. R. China.,School of Material Science and Engineering, Southwest University of Science and Technology , Mianyang 621010, P. R. China
| | - Xiang Wang
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University , Huaian 223300, P. R. China
| | - Sanjun Zhi
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University , Huaian 223300, P. R. China
| | - Yuhe Kan
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University , Huaian 223300, P. R. China
| | - Chao Wang
- School of Material Science and Engineering, Southwest University of Science and Technology , Mianyang 621010, P. R. China
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Iakovenko RO, Kazakova AN, Muzalevskiy VM, Ivanov AY, Boyarskaya IA, Chicca A, Petrucci V, Gertsch J, Krasavin M, Starova GL, Zolotarev AA, Avdontceva MS, Nenajdenko VG, Vasilyev AV. Reactions of CF3-enones with arenes under superelectrophilic activation: a pathway to trans-1,3-diaryl-1-CF3-indanes, new cannabinoid receptor ligands. Org Biomol Chem 2015; 13:8827-42. [DOI: 10.1039/c5ob01072a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CF3-enones react with arenes in TfOH to givetrans-1,3-diaryl-1-CF3indanes.
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Kondratov IS, Dolovanyuk VG, Tolmachova NA, Gerus II, Bergander K, Fröhlich R, Haufe G. Reactions of β-alkoxyvinyl polyfluoroalkyl ketones with ethyl isocyanoacetate and its use for the synthesis of new polyfluoroalkyl pyrroles and pyrrolidines. Org Biomol Chem 2013; 10:8778-85. [PMID: 22948733 DOI: 10.1039/c2ob26176f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hitherto unreported reactions of β-alkoxyvinyl polyfluoroalkyl ketones with ethyl isocyanoacetate and equimolar amounts of potassium-tert-butoxide proceeded mainly in the β-position of the α,β-unsaturated ketones in cases of α-nonsubstituted 1a–e and α-methyl substituted ketones 1g–j. Other α- or β-substituted ketones 1f,k–o gave mainly products 4 of initial attack at the carbonyl carbon. Depending on the solvent, the major products of β-attack do exist in different tautomeric forms. Generally the openchain enol tautomers 5 predominate in the polar DMSO-d(6), while the cyclic γ-hemiaminals 8 are the major tautomers in the less polar CDCl(3). Acid treatment of the latter compounds 8 led to the hitherto unknown ethyl 5-polyfluoroalkyl-pyrrole-2-carboxylates 11 by elimination of formic acid. Catalytic hydrogenation of pyrrole 11a was used for the synthesis of earlier unknown 5-trifluoromethyl proline 16.
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Affiliation(s)
- Ivan S Kondratov
- Institute of Bioorganic Chemistry and Petrochemistry, National Ukrainian Academy of Sciences, Murmanska 1, Kiev-94, 02660, Ukraine
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Wang Z, Shi Y, Luo X, Han DM, Deng WP. Direct synthesis of pyrroles via 1,3-dipolar cycloaddition of azomethine ylides with ynones. NEW J CHEM 2013. [DOI: 10.1039/c3nj00067b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Xin Y, Zhao J, Zhu S. Three-component reactions involving quinoline or isoquinoline, dialkyl acetylenedicarboxylate and β-trifluoroacetyl vinyl ethyl ether. J Fluor Chem 2012. [DOI: 10.1016/j.jfluchem.2011.06.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Xin Y, Zhao J, Gu J, Zhu S. Catalyst free 1,3-dipolar cycloaddition of 3-oxo-1,2-pyrazolidinium ylides to β-trifluoroacetyl vinyl ethyl ether: Synthesis of 6-trifluoroacetyl substituted bicyclic pyrazolidinones. J Fluor Chem 2011. [DOI: 10.1016/j.jfluchem.2011.03.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Dos Santos A, El Kaïm L, Grimaud L, Ronsseray C. Copper-Catalyzed Aerobic Oxidative Cyclization of Hydrazones to Pyrazolidinones. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100261] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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