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Mittersteiner M, Pereira GS, Wessjohann LA, Bonacorso HG, Martins MAP, Zanatta N. Chemoselective O-Alkylation of 4-(Trifluoromethyl)pyrimidin-2(1 H)-ones Using 4-(Iodomethyl)pyrimidines. ACS OMEGA 2022; 7:18930-18939. [PMID: 35694463 PMCID: PMC9178747 DOI: 10.1021/acsomega.2c01925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 05/11/2022] [Indexed: 06/09/2023]
Abstract
This study reports two strategies for preparing O-alkyl derivatives of 6-substituted-4-(trifluoromethyl)pyrimidin-(1H)-ones: a linear protocol of alkylation, using a CCC-building block followed by [3 + 3]-type cyclocondensation with 2-methylisothiourea sulfate and a convergent protocol based on direct alkylation, using 4-(iodomethyl)-2-(methylthio)-6-(trihalomethyl)pyrimidines. It was found that the cyclocondensation strategy is not feasible; thus, the direct chemoselective O-alkylation was performed, and 18 derivatives of the targeted pyrimidines were obtained in 70-98% yields. The structure of the products was unambiguously determined via single crystal X-ray analyses and two-dimensional nuclear magnetic resonance experiments.
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Affiliation(s)
- Mateus Mittersteiner
- Núcleo
de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa
Maria, RS, Brazil
- Department
of Bioorganic Chemistry, Leibniz-Institute
of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
| | - Genilson S. Pereira
- Núcleo
de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa
Maria, RS, Brazil
| | - Ludger A. Wessjohann
- Department
of Bioorganic Chemistry, Leibniz-Institute
of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
| | - Helio G. Bonacorso
- Núcleo
de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa
Maria, RS, Brazil
| | - Marcos A. P. Martins
- Núcleo
de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa
Maria, RS, Brazil
| | - Nilo Zanatta
- Núcleo
de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa
Maria, RS, Brazil
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2
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Mittersteiner M, Pereira GS, Silva Y, Wessjohann LA, Bonacorso HG, Martins MAP, Zanatta N. Substituent-Driven Selective N-/ O-Alkylation of 4-(Trihalomethyl)pyrimidin-2(1 H)-ones Using Brominated Enones. J Org Chem 2022; 87:4590-4602. [DOI: 10.1021/acs.joc.1c02919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mateus Mittersteiner
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
- Department of Bioorganic Chemistry, Leibniz-Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
| | - Genilson S. Pereira
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Yuri Silva
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Ludger A. Wessjohann
- Department of Bioorganic Chemistry, Leibniz-Institute of Plant Biochemistry, Weinberg 3, 06120 Halle (Saale), Germany
| | - Helio G. Bonacorso
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Marcos A. P. Martins
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Nilo Zanatta
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
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3
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Zanatta N, Mittersteiner M, Aquino EC, Budragchaa T, Wessjohann LA, Bonacorso HG, Martins MAP. Synthesis of Methylene-Bridged Trifluoromethyl Azoles Using 5-(1,2,3-Triazol-1-yl)enones. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0040-1719837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractA protocol for synthesizing triazole-containing pyrazolines and pyrazoles selectively using trifluoromethylated 5-(1,2,3-triazol-1-yl)enones as starting materials, is reported. The selectivity of the reaction was controlled by the nature of the hydrazine or derivative used: free hydrazines furnished the 1,5-regiosiomer exclusively in yields up to 98%, whereas protected hydrazines provided the 1,3-regioisomer in yields up to 77%. To demonstrate the synthetic versatility of the triazole-based enone, reactions with other unsymmetrical dinucleophiles (hydroxylamine hydrochloride and S-methyl isothiourea sulfates) allowed the selective preparation of triazole-containing isoxazoline and pyrimidine rings.
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Affiliation(s)
- Nilo Zanatta
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria
| | - Mateus Mittersteiner
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria
- Department of Bioorganic Chemistry, Leibniz-Institute of Plant Biochemistry
| | - Estefania C. Aquino
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria
| | | | | | - Helio G. Bonacorso
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria
| | - Marcos A. P. Martins
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria
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Mittersteiner M, Farias FFS, Bonacorso HG, Martins MAP, Zanatta N. Ultrasound-assisted synthesis of pyrimidines and their fused derivatives: A review. ULTRASONICS SONOCHEMISTRY 2021; 79:105683. [PMID: 34562732 PMCID: PMC8473776 DOI: 10.1016/j.ultsonch.2021.105683] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/12/2021] [Accepted: 07/20/2021] [Indexed: 06/09/2023]
Abstract
The pyrimidine scaffold is present in many bioactive drugs; therefore, efficient synthetic routes that provide shorter reaction times, higher yields, and site-selective reactions are constantly being sought. Ultrasound (US) irradiation has emerged as an alternative energy source in the synthesis of these heterocyclic scaffolds, and over the last ten years there has been a significant increase in the number of publications mentioning US in either the construction or derivatization of the pyrimidine core. This review presents a detailed summary (with 140 references) of the effects of US (synergic or not) on the construction and derivatization of the pyrimidine core through classical reactions (e.g., multicomponent, cyclocondensation, cycloaddition, and alkylation reactions). The main points that were taken into consideration are as follows: chemo- and regioselectivity issues, and the results of conventional heating methods compared to US and mechanistic insights that are also presented and discussed for key reactions.
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Affiliation(s)
- Mateus Mittersteiner
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil.
| | - Fellipe F S Farias
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil
| | - Helio G Bonacorso
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil
| | - Marcos A P Martins
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil
| | - Nilo Zanatta
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Brazil.
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Mittersteiner M, Bonacorso HG, Martins MAP, Zanatta N. Haloacetylated Enol Ethers: a Way Out for the Regioselective Synthesis of Biologically Active Heterocycles. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100495] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mateus Mittersteiner
- Núcleo de Química de Heterociclos (NUQUIMHE) Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria Brazil
| | - Helio G. Bonacorso
- Núcleo de Química de Heterociclos (NUQUIMHE) Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria Brazil
| | - Marcos A. P. Martins
- Núcleo de Química de Heterociclos (NUQUIMHE) Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria Brazil
| | - Nilo Zanatta
- Núcleo de Química de Heterociclos (NUQUIMHE) Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria Brazil
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6
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Zanatta N, Zachow LL, Mittersteiner M, Aquino EC, Bonacorso HG, Martins MAP. Synthesis of Highly Functionalized 4-Amino-2-(trifluoromethyl)-1H-pyrroles. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1503-9057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
AbstractIn this work, the reactivity of 5-bromo-1,1,1-trifluoro-4-methoxypent-3-en-2-one toward primary aliphatic amines was studied. The reaction was found to be extremely selective to synthesize a series of 1-alkyl-4-(aminoalkyl)-2-(trifluoromethyl)-1H-pyrroles (13 examples, up to 90% yield) and a series of highly functionalized β-enaminones (6 examples, up to 78% yield), with only the amount of amine and the reaction conditions needing to be controlled. The structure of the products was unambiguously determined by single crystal X-ray diffraction and 2D NMR experiments.
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Da Silva AMPW, Mittersteiner M, Da Silva FM, D'Avila F, Nogara PA, Nogara KF, Rocha JBT, Bonacorso HG, Martins MAP, Zanatta N. Design, Synthesis, and Cholinesterase Inhibitory Activity of 4‐Substituted‐6‐(trihalomethyl)‐2‐methylsulfanyl Pyrimidines. ChemistrySelect 2021. [DOI: 10.1002/slct.202100125] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Andreia M. P. W. Da Silva
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria, RS Brazil
| | - Mateus Mittersteiner
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria, RS Brazil
| | - Fabio M. Da Silva
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria, RS Brazil
| | - Fernanda D'Avila
- Laboratório de Bioquímica Toxicológica Departamento de Bioquímica e Biologia Molecular Universidade Federal de Santa Maria 97105-900 Santa Maria, RS Brazil
| | - Pablo A. Nogara
- Laboratório de Bioquímica Toxicológica Departamento de Bioquímica e Biologia Molecular Universidade Federal de Santa Maria 97105-900 Santa Maria, RS Brazil
| | - Karise F. Nogara
- Laboratório de Bioquímica Toxicológica Departamento de Bioquímica e Biologia Molecular Universidade Federal de Santa Maria 97105-900 Santa Maria, RS Brazil
| | - João B. T. Rocha
- Laboratório de Bioquímica Toxicológica Departamento de Bioquímica e Biologia Molecular Universidade Federal de Santa Maria 97105-900 Santa Maria, RS Brazil
| | - Helio G. Bonacorso
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria, RS Brazil
| | - Marcos A. P. Martins
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria, RS Brazil
| | - Nilo Zanatta
- Núcleo de Química de Heterociclos (NUQUIMHE), Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria, RS Brazil
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Andrade VP, Mittersteiner M, Bonacorso HG, Martins MAP, Zanatta N. Trifluoromethyl β‐Enamino Diketones as Dual Substrates for the Synthesis of 5‐Benzoyl‐6‐(trifluoromethyl)pyrimidines and their Pyrimidin‐4(3
H
)‐one Analogues. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000879] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Valquiria P. Andrade
- Núcleo de Química de Heterociclos (NUQUIMHE) Departmento de Química Universidade Federal de Santa Maria 97105‐900 Santa Maria RS Brazil
| | - Mateus Mittersteiner
- Núcleo de Química de Heterociclos (NUQUIMHE) Departmento de Química Universidade Federal de Santa Maria 97105‐900 Santa Maria RS Brazil
| | - Helio G. Bonacorso
- Núcleo de Química de Heterociclos (NUQUIMHE) Departmento de Química Universidade Federal de Santa Maria 97105‐900 Santa Maria RS Brazil
| | - Marcos A. P. Martins
- Núcleo de Química de Heterociclos (NUQUIMHE) Departmento de Química Universidade Federal de Santa Maria 97105‐900 Santa Maria RS Brazil
| | - Nilo Zanatta
- Núcleo de Química de Heterociclos (NUQUIMHE) Departmento de Química Universidade Federal de Santa Maria 97105‐900 Santa Maria RS Brazil
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da Silva FM, da Silva AM, Mittersteiner M, Andrade VP, da C. Aquino E, Bonacorso HG, Martins MA, Zanatta N. Regio- and stereoselective synthesis of polysubstituted 5-hydroxypyrrolidin-2-ones from 3-alkoxysuccinimides. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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10
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Heidarpoor Saremi L, Ebrahimi A, Lagzian M. Substituent effects on direct and indirect tautomerism of pyrimidin-2(1H)-one/pyrimidin-2-ol. MOLECULAR SIMULATION 2018. [DOI: 10.1080/08927022.2018.1531400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Leily Heidarpoor Saremi
- Department of Chemistry, Computational Quantum Chemistry Laboratory, University of Sistan and Baluchestan, Zahedan, Iran
| | - Ali Ebrahimi
- Department of Chemistry, Computational Quantum Chemistry Laboratory, University of Sistan and Baluchestan, Zahedan, Iran
| | - Milad Lagzian
- Department of Biology, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan, Iran
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Li FL, Wang L, Li CH, Liu N, Dai B. Substrate-Controlled Product Divergence: Silver-Catalyzed Reaction of Trifluoromethyl Ketones with Terminal Alkynes. ACS OMEGA 2017; 2:1104-1115. [PMID: 31457493 PMCID: PMC6640928 DOI: 10.1021/acsomega.6b00432] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Accepted: 03/10/2017] [Indexed: 06/10/2023]
Abstract
A distinct dichotomy in product distribution was initially observed in the silver-catalyzed reaction of trifluoromethyl (CF3) ketones with terminal alkynes having two different types of electronic natures. The domino reaction smoothly proceeded almost exclusively with high stereoselectivity with terminal alkynes containing ester groups, whereas alkynylation occurred in good yield when terminal alkynes containing aryl or alkyl groups were present. The results indicated that the electronic nature of terminal alkynes can act as a switch that enables either the domino reaction or alkynylation between terminal alkynes and CF3 ketones.
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