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Kajtár M, Király SB, Bényei A, Kiss-Szikszai A, Kónya-Ábrahám A, Zhang N, Horváth LB, Bősze S, Li D, Kotschy A, Paczal A, Kurtán T. Competing Domino Knoevenagel-Cyclization Sequences with N-Arylcinnamylamines. J Org Chem 2024; 89:6937-6950. [PMID: 38691817 DOI: 10.1021/acs.joc.4c00299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Domino Knoevenagel-cyclization reactions of N-arylcinnamylamines were carried out with active methylene reagents, which took place with five competing cyclization mechanisms: intramolecular hetero Diels-Alder reaction, stepwise polar [2 + 2] cycloaddition, styryl or aza-Diels-Alder reactions followed by rearomatization, and [1,5]-hydride shift-6-endo cyclization. In the stepwise aza-Diels-Alder reaction, the N-vinylpyridinium moiety acted as an azadiene, producing a condensed heterocycle with tetrahydroquinolizinium and tetrahydroquiniline subunits. Antiproliferative activity with low micromolar IC50 values was identified for some of the novel scaffolds.
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Affiliation(s)
- Mihály Kajtár
- Department of Organic Chemistry, University of Debrecen, Debrecen 4002, Hungary
- Doctoral School of Chemistry, University of Debrecen, Egyetem square 1, 4032 Debrecen, Hungary
| | | | - Attila Bényei
- Department of Physical Chemistry, University of Debrecen, Debrecen 4002, Hungary
| | | | - Anita Kónya-Ábrahám
- Department of Organic Chemistry, University of Debrecen, Debrecen 4002, Hungary
| | - Ning Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Lilla Borbála Horváth
- Hungarian Research Network (HUN-REN), Research Group of Peptide Chemistry, Eötvös Loránd University, H1117 Budapest, Hungary
| | - Szilvia Bősze
- Hungarian Research Network (HUN-REN), Research Group of Peptide Chemistry, Eötvös Loránd University, H1117 Budapest, Hungary
| | - Dehai Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, People's Republic of China
| | - Andras Kotschy
- Servier Research Institute of Medicinal Chemistry, Budapest 1031, Hungary
| | - Attila Paczal
- Servier Research Institute of Medicinal Chemistry, Budapest 1031, Hungary
| | - Tibor Kurtán
- Department of Organic Chemistry, University of Debrecen, Debrecen 4002, Hungary
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Cascade of the acylation/intramolecular oxo-Diels–Alder reaction for the diastereoselective synthesis of thienyl substituted hexahydropyrano[3,4–c]pyrrole-1,6-diones. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
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Zubkov FI, Krishna G, Grudinin DG, Nikitina EV. IntraMolecular Diels–Alder Reactions of Vinylarenes and Alkynyl Arenes (the IMDAV Reaction). SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0040-1705983] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AbstractThis comprehensive review summarizes the published literature data concerning the intramolecular Diels–Alder reactions of vinylarenes (the IMDAV reaction) and alkynyl arenes from 1970 to 2019, and covers mainly intramolecular [4+2] cycloaddition reactions of vinyl- or acetylene-substituted furans, thiophenes, pyrroles, indoles, imidazoles, benzenes, and naphthalenes, in which the unsaturated substituent is linked directly to an arene moiety. The selected area of the Diels–Alder reaction differs from other forms of [4+2] cycloadditions due to the uniqueness of the diene fragment, which, along with an exocyclic multiple bond, includes the double bond of an aromatic or heteroaromatic nucleus in its system. Thus, during the formation of the [4+2] cycloaddition intermediate, the aromaticity of furan, thiophene and even benzene rings is broken, leading, as a rule, to the formation of heterocyclic structures rarely accessible by other methods, in contrast to the majority of intermolecular Diels–Alder reactions, with the highest degree of chemo-, regio-, and diastereoselectivity. Therefore, the IMDAV approach is often used for the synthesis of naturally occurring and bioactive molecules, which are also discussed in this review alongside other applications of this reaction. Whenever possible, we have tried to avoid examples of radical, photochemical, oxidative, precious-metal-complex-catalyzed cyclizations and other types of formal [4+2] cycloadditions, focusing on thermal Diels–Alder reactions in the first step, according to the classical mechanism. The second stage of the process, aromatization, is unique for many initial substrates, and hence considerable attention in this overview is given to the detailed description of the reaction mechanisms.1 Introduction2 IMDAV Reactions of Vinylfurans2.1 Alkenes as Internal Dienophiles2.2 Alkynes and Allenes as Internal Dienophiles3 IMDAV Reactions of Vinylthiophenes3.1 Alkenes as Internal Dienophiles3.2 Alkynes as Internal Dienophiles4 IMDAV Reactions of Vinylbenzothiophenes5 IMDAV Reactions of Vinylpyrroles6 IMDAV Reactions of Vinylindoles6.1 Alkenes as Internal Dienophiles6.2 Alkynes as Internal Dienophiles7 IMDAV Reactions of Styrenes and Vinylnaphthalenes7.1 Alkenes as Internal Dienophiles7.2 Alkynes as Internal Dienophiles7.3 Alkynes as Internal Dienophiles in Aryl Acetylenes (the Intramolecular Dehydro Diels–Alder Reaction)8 IMDAV Reactions of Vinylimidazoles, Vinylisoxazoles and Vinylpyridines9 Conclusion10 Abbreviations
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Kütahya C, Meckbach N, Strehmel V, Gutmann JS, Strehmel B. NIR Light-Induced ATRP for Synthesis of Block Copolymers Comprising UV-Absorbing Moieties. Chemistry 2020; 26:10444-10451. [PMID: 32343443 PMCID: PMC7496941 DOI: 10.1002/chem.202001099] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/23/2020] [Indexed: 11/12/2022]
Abstract
NIR exposure at 790 nm activated photopolymerization of monomers comprising UV-absorbing moieties by using [CuII /(TPMA)]Br2 (TPMA=tris(2-pyridylmethyl)amine) in the ppm range and an alkyl bromide as initiator. Some of them comprised structural elements selected either from those showing proton transfer or photocycloaddition upon UV excitation. Polymers obtained comprise living end groups serving as macroinitiator for controlled synthesis of block copolymers with relatively narrow molecular weight distributions. Chromatographic results indicated formation of block copolymers produced by this synthetic approach. Free-radical polymerization of monomers pursued for comparison exhibited the expected broader dispersity of molecular weight compared to photo-ATRP. Polymerization of these monomers by UV photo-ATRP failed on the contrary to NIR photo-ATRP demonstrating the UV-filter function of the monomers. This work conclusively provides a new approach for the polymerization of monomers comprising UV-absorbing moieties through photo-ATRP in the NIR region. This occurred in a simple and efficient pathway. However, studies also showed that not all monomers chosen successfully proceeded in the NIR photo-ATRP protocol.
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Affiliation(s)
- Ceren Kütahya
- Department of Chemistry, Institute for Coatings and Surface ChemistryNiederrhein University of Applied SciencesAdlerstr. 147798KrefeldGermany
| | - Nicolai Meckbach
- Department of Chemistry, Institute for Coatings and Surface ChemistryNiederrhein University of Applied SciencesAdlerstr. 147798KrefeldGermany
| | - Veronika Strehmel
- Department of Chemistry, Institute for Coatings and Surface ChemistryNiederrhein University of Applied SciencesAdlerstr. 3247798KrefeldGermany
| | - Jochen S. Gutmann
- Department of Physical ChemistryCenter of, Nanointegration (CENIDE)University of Duisburg-Essen45141EssenGermany
| | - Bernd Strehmel
- Department of Chemistry, Institute for Coatings and Surface ChemistryNiederrhein University of Applied SciencesAdlerstr. 147798KrefeldGermany
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Sugiura H, Yamazaki S, Ogawa A. Sequential Intramolecular Diels–Alder Reaction of 3‐Heteroaryl‐2‐propenylamides of Ethenetricarboxylate. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3665] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hirotaka Sugiura
- Department of Applied Chemistry, Graduate School of EngineeringOsaka Prefecture University Gakuen‐cho 1‐1, Nakaku, Sakai Osaka 599‐8531 Japan
| | - Shoko Yamazaki
- Department of ChemistryNara University of Education Takabatake‐cho Nara 630‐8528 Japan
| | - Akiya Ogawa
- Department of Applied Chemistry, Graduate School of EngineeringOsaka Prefecture University Gakuen‐cho 1‐1, Nakaku, Sakai Osaka 599‐8531 Japan
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Sugiura H, Yamazaki S, Go K, Ogawa A. Intramolecular Cyclization of 3,3-Diarylpropenylamides of Electron-Deficient Alkenes: Stereoselective Synthesis of Functionalized Hexahydrobenzo[ f
]isoindoles. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801508] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Hirotaka Sugiura
- Department of Applied Chemistry; Graduate School of Engineering; Osaka Prefecture University; Gakuen-cho 1-1 599-8531 Nakaku, Sakai Osaka Japan
| | - Shoko Yamazaki
- Department of Chemistry; Nara University of Education; Takabatake-cho 630-8528 Nara Japan
| | - Kakeru Go
- Department of Chemistry; Nara University of Education; Takabatake-cho 630-8528 Nara Japan
| | - Akiya Ogawa
- Department of Applied Chemistry; Graduate School of Engineering; Osaka Prefecture University; Gakuen-cho 1-1 599-8531 Nakaku, Sakai Osaka Japan
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Zaytsev VP, Sorokina EA, Kvyatkovskaya EA, Toze FAA, Mhaldar SN, Dorovatovskii PV, Khrustalev VN. Three-component reaction between isatoic anhydride, amine and meth-yl-subs-tituted furyl-acryl-alde-hydes: crystal structures of 3-benzyl-2-[( E)-2-(5-methylfuran-2-yl)vin-yl]-2,3-di-hydro-quinazolin-4(1 H)-one, 3-benzyl-2-[( E)-2-(furan-2-yl)-1-methyl-vin-yl]-2,3-di-hydro-quinazolin-4(1 H)-one and 3-(furan-2-ylmeth-yl)-2-[( E)-2-(furan-2-yl)-1-methyl-vin-yl]-2,3-di-hydro-quinazolin-4(1 H)-one. Acta Crystallogr E Crystallogr Commun 2018; 74:1101-1106. [PMID: 30116571 PMCID: PMC6072988 DOI: 10.1107/s2056989018009982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 07/11/2018] [Indexed: 11/11/2022]
Abstract
Compounds (I), C22H20N2O2, (II), C22H20N2O2 and (III), C20H18N2O3 are the products of three-component reactions between isatoic anhydride, the corresponding amine and 3-(5-methylfuran-2-yl)- or (furan-2-yl)-2-methyl-acryl-aldehyde. Compound (I) crystallizes in the monoclinic space group P21/n, while compounds (II) and (III) are isostructural and crystallize in the ortho-rhom-bic space group Pbca. The tetra-hydro-pyrimidine ring in (I)-(III) adopts a sofa conformation. The NH nitro-gen atom has a trigonal-pyramidal geometry, whereas the N(R) nitro-gen atom is flattened. The furyl-vinyl substituents in (I)-(III) are practically planar and have an E configuration at the C=C double bond. In (I), this bulky fragment occupies the axial position at the quaternary carbon atom of the tetra-hydro-pyrimidine ring, whereas in (II) and (III) it is equatorially disposed. In the crystal of (I), mol-ecules form hydrogen-bonded chains propagating along [001] by strong inter-molecular N-H⋯O hydrogen bonds. The chains are packed in stacks along the a-axis direction. In the crystals of (II) and (III), mol-ecules also form hydrogen-bonded chains propagating along [100] by strong inter-molecular N-H⋯O hydrogen bonds. However, despite the fact that compounds (II) and (III) are isostructural, steric differences between the phenyl and furyl substituents result in chains with different geometries. Thus in the crystal of (II) the chains have a zigzag-like structure, whereas in the crystal of (III), they are almost linear. In both (II) and (III), the hydrogen-bonded chains are further packed in stacks along the b-axis direction.
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Affiliation(s)
- Vladimir P. Zaytsev
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Elena A. Sorokina
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Elisaveta A. Kvyatkovskaya
- Organic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
| | - Flavien A. A. Toze
- Department of Chemistry, Faculty of Sciences, University of Douala, PO Box 24157, Douala, Republic of , Cameroon
| | - Shashank N. Mhaldar
- Department of Chemistry, Goa University, Taleigao Plateau, Goa 403 206, India
| | - Pavel V. Dorovatovskii
- National Research Centre "Kurchatov Institute", 1 Acad. Kurchatov Sq., Moscow 123182, Russian Federation
| | - Victor N. Khrustalev
- National Research Centre "Kurchatov Institute", 1 Acad. Kurchatov Sq., Moscow 123182, Russian Federation
- Inorganic Chemistry Department, Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklay St., Moscow 117198, Russian Federation
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Synthesis of pyrano[3,4-c]pyrroles (microreview). Chem Heterocycl Compd (N Y) 2018. [DOI: 10.1007/s10593-018-2312-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Voronov AA, Alekseeva KA, Ryzhkova EA, Zarubaev VV, Galochkina AV, Zaytsev VP, Majik MS, Tilve SG, Gurbanov AV, Zubkov FI. First example of the cascade acylation/IMDAV/ene reaction sequence, leading to N-arylbenzo[f]isoindole-4-carboxylic acids possessing anti-viral activity. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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