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Moraes PA, Brum ES, Brusco I, Marangoni MA, Lobo MM, Camargo AF, Nogara PA, Bonacorso HG, Martins MAP, Da Rocha JBT, Oliveira SM, Zanatta N. Pyrazole‐Enaminones as Promising Prototypes for the Development of Analgesic Drugs. ChemistrySelect 2020. [DOI: 10.1002/slct.202004049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Paulo A. Moraes
- Núcleo de Química de Heterociclos (NUQUIMHE) Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria Brazil
| | - Evelyne S. Brum
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica Universidade Federal de Santa Maria 97105-900 Santa Maria, RS Brazil
| | - Indiara Brusco
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica Universidade Federal de Santa Maria 97105-900 Santa Maria, RS Brazil
| | - Mário A. Marangoni
- Núcleo de Química de Heterociclos (NUQUIMHE) Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria Brazil
| | - Marcio M. Lobo
- Núcleo de Química de Heterociclos (NUQUIMHE) Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria Brazil
| | - Adriano F. Camargo
- Núcleo de Química de Heterociclos (NUQUIMHE) Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria Brazil
| | - Pablo A. Nogara
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica 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 Brazil
| | - Marcos A. P. Martins
- Núcleo de Química de Heterociclos (NUQUIMHE) Departamento de Química Universidade Federal de Santa Maria 97105-900 Santa Maria Brazil
| | - João Batista T. Da Rocha
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica Universidade Federal de Santa Maria 97105-900 Santa Maria, RS Brazil
| | - Sara M. Oliveira
- Programa de Pós-Graduação em Ciências Biológicas: Bioquímica Toxicológica 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 Brazil
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Bugera MY, Tarasenko KV, Kondratov IS, Gerus II, Vashchenko BV, Ivasyshyn VE, Grygorenko OO. (Het)aryl Difluoromethyl-Substituted β-Alkoxyenones: Synthesis and Heterocyclizations. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901833] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Maksym Ya. Bugera
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine
- V.P. Kukhar Institute of Bioorganic Chemistry & Petrochemistry; NAS of Ukraine; Murmanska Street 1 02660 Kyiv Ukraine
| | - Karen V. Tarasenko
- V.P. Kukhar Institute of Bioorganic Chemistry & Petrochemistry; NAS of Ukraine; Murmanska Street 1 02660 Kyiv Ukraine
- Chemspace; Ilukstes iela 38-5 1082 Riga Latvia
| | - Ivan S. Kondratov
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine
- V.P. Kukhar Institute of Bioorganic Chemistry & Petrochemistry; NAS of Ukraine; Murmanska Street 1 02660 Kyiv Ukraine
| | - Igor I. Gerus
- V.P. Kukhar Institute of Bioorganic Chemistry & Petrochemistry; NAS of Ukraine; Murmanska Street 1 02660 Kyiv Ukraine
| | - Bohdan V. Vashchenko
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv; Volodymyrska Street 60 01601 Kyiv Ukraine
| | - Viktor E. Ivasyshyn
- V.P. Kukhar Institute of Bioorganic Chemistry & Petrochemistry; NAS of Ukraine; Murmanska Street 1 02660 Kyiv Ukraine
| | - Oleksandr O. Grygorenko
- Enamine Ltd.; Chervonotkatska Street 78 02094 Kyiv Ukraine
- Taras Shevchenko National University of Kyiv; Volodymyrska Street 60 01601 Kyiv Ukraine
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Sevenard DV, Didenko AV, Lorenz D, Vorobiev M, Stelten J, Dülcks T, Sosnovskikh VY. Preparative synthesis of 2,2-dimethyl-5-(trifluoroacetyl)-1,3-dioxane-4,6-dione (2-trifluoroacetyl Meldrum's acid) and 2,2-dimethyl-6-(trifluoromethyl)-4H-1,3-dioxin-4-one and their synthetic usefulness as (trifluoroacetyl)ketene precursors. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.01.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Regioselectively controlled synthesis of 3(5)-(trifluoromethyl)pyrazolylbenzenesulfonamides and their effects on a pathological pain model in mice. Eur J Med Chem 2015; 102:143-52. [DOI: 10.1016/j.ejmech.2015.07.036] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 07/17/2015] [Accepted: 07/18/2015] [Indexed: 11/20/2022]
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6
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Mykhailiuk PK. Three-component synthesis of C2F5-substituted pyrazoles from C2F5CH2NH2·HCl, NaNO2 and electron-deficient alkynes. Beilstein J Org Chem 2015; 11:16-24. [PMID: 25670987 PMCID: PMC4311722 DOI: 10.3762/bjoc.11.3] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Accepted: 11/10/2014] [Indexed: 11/23/2022] Open
Abstract
A one-pot reaction between C2F5CH2NH2·HCl, NaNO2 and electron-deficient alkynes gives C2F5-substituted pyrazoles in excellent yields. The transformation smoothly proceeds in dichloromethane/water, tolerates the presence of air, and requires no purification of products by column chromatography. Mechanistically, C2F5CH2NH2·HCl and NaNO2 react first in water to generate C2F5CHN2, that participates in a [3 + 2] cycloaddition with electron-deficient alkynes in dichloromethane.
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Affiliation(s)
- Pavel K Mykhailiuk
- Enamine Ltd., Vul. Oleksandra Matrosova 23, 01103 Kyiv, Ukraine; and Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska Street, 64, Kyiv 01601, Ukraine
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7
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Synthesis of 2-pyridones, pyrimidines, and pyrazoles from 1,1,1-trifluoro-4,4-bis(methylthio)but-3-en-2-one. Russ Chem Bull 2013. [DOI: 10.1007/s11172-012-0223-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Zanatta N, Amaral SS, dos Santos JM, da Silva AM, Schneider JM, Fernandes LDS, Bonacorso HG, Martins MA. New strategy for the regioselective synthesis of 1-phenyl-3-trifluoromethyl-1H-pyrazoles. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.05.103] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Dzvinchuk IB, Lozinskii MO. Synthesis and tautomerism of 2-(3,5-diaryl-1H-pyrazol-4-yl)-1-methyl-1H-benzimidazoles. Chem Heterocycl Compd (N Y) 2011. [DOI: 10.1007/s10593-011-0691-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Cordes J, Harms K, Koert U. Synthesis of the isoquinocycline-pyrrolopyrrole substructure. Org Lett 2010; 12:3808-11. [PMID: 20698487 DOI: 10.1021/ol101500k] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of the pyrrolopyrrole substructure of the isoquinocyclines is reported. The pentacyclic (CDEFG) substructure of isoquinocycline A and B, which contains an unusual 2,4,5,6-tetrahydropyrrolo[2,3-b]pyrrole (FG) connected via an N,O-spiro acetal to the anthraquinoid core of the isoquinocycline aglycon has been synthesized. Key steps were a nickel(0)-mediated hydrocyanation of an alkynone, the conversion of an O,O-acetal into an N,O-acetal, and an intramolecular amidine alkylation.
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Affiliation(s)
- Jens Cordes
- Fachbereich Chemie, Philipps-University Marburg, Hans-Meerwein-Strasse, D-35032 Marburg, Germany
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Martins MA, Moreira DN, Frizzo CP, Campos PT, Longhi K, Marzari MR, Zanatta N, Bonacorso HG. X-ray structure, semi-empirical MO calculations and π-electron delocalization of 1-cyanoacetyl-5-trifluoromethyl-5-hydroxy-4,5-dihydro-1H-pyrazoles. J Mol Struct 2010. [DOI: 10.1016/j.molstruc.2010.01.050] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Martins MAP, Peres RL, Frizzo CP, Scapin E, Moreira DN, Fiss GF, Zanatta N, Bonacorso HG. Solvent-free route to β-enamino dichloromethyl ketones and application in the synthesis of novel 5-dichloromethyl-1H-pyrazoles. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.227] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Okada E, Miyamura T, Ota N, Terai N, Shibata D, Sakata T. A Convenient Synthetic Method for Fluorine-Containing 4-Alkoxydihydrobenzo[b][1,4]diazepinols and 3H-Benzo[b][1,4]diazepines by the Reaction of β-Trifluoroacetylketene Acetals with 1,2-Phenylenediamines. HETEROCYCLES 2009. [DOI: 10.3987/com-08-s(f)72] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Martins MAP, Pereira CMP, Moura S, Frizzo CP, Beck P, Zanatta N, Bonacorso HG, Flores AFC. Microwave assisted regiospecific synthesis of 5-trifluoromethyl-4,5-dihydropyrazoles and-pyrazoles. J Heterocycl Chem 2007. [DOI: 10.1002/jhet.5570440537] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Druzhinin SV, Balenkova ES, Nenajdenko VG. Recent advances in the chemistry of α,β-unsaturated trifluoromethylketones. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.04.029] [Citation(s) in RCA: 146] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Pace A, Buscemi S, Vivona N. THE SYNTHESIS OF FLUORINATED HETEROAROMATIC COMPOUNDS. PART 2. FIVE-MEMBERED RINGS WITH TWO HETEROATOMS. A REVIEW. ORG PREP PROCED INT 2007. [DOI: 10.1080/00304940709458581] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Bonacorso HG, Oliveira MR, Costa MB, Da Silva LB, Wastowski AD, Zanatta N, Martins MAP. Regiospecific one-pot synthesis of new trifluoromethyl substituted heteroaryl pyrazolyl ketones. J Heterocycl Chem 2005. [DOI: 10.1002/jhet.5570420424] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Indium(III) bromide catalyzed one-pot synthesis of trichloromethylated tetrahydropyrimidinones. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.10.048] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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