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Synthesis, photochemistry and photophysics of new butadiene derivatives: Influence of the fluoro, dimethylamino and nitro substituents on the molecular structure and photoinduced behavior. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Vuk D, Škorić I, Milašinović V, Molčanov K, Marinić Ž. A simple and easy to perform synthetic route to functionalized thienyl bicyclo[3.2.1]octadienes. Beilstein J Org Chem 2020; 16:1092-1099. [PMID: 32550924 PMCID: PMC7277534 DOI: 10.3762/bjoc.16.96] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 05/15/2020] [Indexed: 11/23/2022] Open
Abstract
In order to prepare novel polycyclic derivatives of bicyclo[3.2.1]octadiene systems fused with a thiophene ring, photochemical cyclization and aldol condensation reactions were carried out. The starting substrates were easily obtained by a Vilsmeier–Haack reaction of bicyclo[3.2.1]octadiene thiophene derivatives with dimethylformamide. From the obtained carbaldehydes, novel methyl, methoxy, and cyano-substituted styryl thienobenzobicyclo[3.2.1]octadiene derivatives were synthesized through Wittig reactions and subjected to photochemical cyclization, in terms of obtaining the new annulated structures. As part of this study, the aldol reaction of the starting 2-substituted carbaldehyde with acetone was also performed, which produced the thieno-fused benzobicyclo[3.2.1]octadiene compound with an extended conjugation.
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Affiliation(s)
- Dragana Vuk
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Irena Škorić
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Valentina Milašinović
- Division of Physical Chemistry, Rudjer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Krešimir Molčanov
- Division of Physical Chemistry, Rudjer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Željko Marinić
- NMR Centre, Ruđer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
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New Functionalized Polycycles Obtained by Photocatalytic Oxygenation Using Mn(III) Porphyrins in Basic Media. Catalysts 2019. [DOI: 10.3390/catal9040304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
According to our earlier observations, the products of photocatalytic oxygenations of furan and thiophene derivatives of benzobicyclo[3.2.1]octadiene with anionic and cationic manganese(III) porphyrin at pH = 7 strongly depended on the type and position of the heteroatom in the aromatic ring, as well as the charge of the photocatalyst. Hence, a significant pH increase (to 10) in these systems offered a reasonable tool to affect the diversity and yields of the oxygenation products. They were quantitatively separated by TLC and identified with NMR analyses. The results clearly indicated that the increase of HO− concentration, in most cases, considerably changed the product yield, e.g., enhanced it to 70% for the hydroxy-furyl derivative. Accordingly, the selectivity of the oxygenation of the furan compound could be improved in this way. In the case of one thienyl compound, however, even an additional product appeared, while the yields of the products of the other thiophene derivative (with cationic catalyst) decreased to zero, suggesting the application of lower pH for preparative purposes. The pH effects indicate that oxygenation reactions in these systems involve more photochemically generated oxidative agents, e.g., •OH and (P)Mn(V)=O), the role of which is affected by the pH increase in various ways.
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Šagud I, Milašinović V, Molčanov K, Marinić Ž, Škorić I. Synthesis, spectroscopic characterization and photophysical investigations of new di-(2/3)-pyridine-stilbenes; isomerism, nitrogen position influence and solvent effects. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.06.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Ratković A, Marinić Ž, Škorić I. Flow-photochemical synthesis of the functionalized benzobicyclo[3.2.1]octadiene skeleton. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.05.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Šagud I, Marinić Ž, Škorić I. Excited state reactions of β -pyridyl- o -divinylbenzenes as a pathway to versatile polycyclic compounds with the unusual entrapment of multiple isomerized dihydro-intermediates. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.11.100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Šagud I, Šindler-Kulyk M, Vojnović-Jandrić D, Marinić Ž. Versatile Photochemical Reactivity of Diverse Substituted 2-, 4- and 5-(o
-Vinylstyryl)oxazoles. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701551] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ivana Šagud
- Department of Organic Chemistry; Faculty of Chemical Engineering and Technology; University of Zagreb; Marulićev trg 19 10000 Zagreb Croatia
| | - Marija Šindler-Kulyk
- Department of Organic Chemistry; Faculty of Chemical Engineering and Technology; University of Zagreb; Marulićev trg 19 10000 Zagreb Croatia
| | - Dragana Vojnović-Jandrić
- Department of Organic Chemistry; Faculty of Chemical Engineering and Technology; University of Zagreb; Marulićev trg 19 10000 Zagreb Croatia
| | - Željko Marinić
- NMR Center; Faculty of Chemical Engineering and Technology; Rudjer Bošković Institute; 10000 Zagreb Croatia
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Šagud I, Levačić M, Marinić Ž, Škorić I. Formation of Polycyclic Skeletons by Photochemical Transformations of Pyridyl- and Thienylbutadiene Derivatives. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700481] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ivana Šagud
- Department of Organic Chemistry; Faculty of Chemical Engineering and Technology; University of Zagreb; Marulićev trg 19 10000 Zagreb Croatia
| | - Marko Levačić
- Department of Organic Chemistry; Faculty of Chemical Engineering and Technology; University of Zagreb; Marulićev trg 19 10000 Zagreb Croatia
| | - Željko Marinić
- NMR Center; Rudjer Bošković Institute; Bijenička cesta 54 10000 Zagreb Croatia
| | - Irena Škorić
- Department of Organic Chemistry; Faculty of Chemical Engineering and Technology; University of Zagreb; Marulićev trg 19 10000 Zagreb Croatia
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Percy JM, Emerson H, Fyfe JWB, Kennedy AR, Maciuk S, Orr D, Rathouská L, Redmond JM, Wilson PG. Modular Construction of Fluoroarenes from a New Difluorinated Building Block by Cross-Coupling/Electrocyclisation/Dehydrofluorination Reactions. Chemistry 2016; 22:12166-75. [DOI: 10.1002/chem.201601584] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Jonathan M. Percy
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - Helena Emerson
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - James W. B. Fyfe
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - Alan R. Kennedy
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - Sergej Maciuk
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - David Orr
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - Lucie Rathouská
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
| | - Joanna M. Redmond
- Allergic Inflammation DPU; GlaxoSmithKline Medicines Research Centre; Gunnels Wood Road Stevenage SG1 2NY UK
| | - Peter G. Wilson
- WestCHEM Department of Pure and Applied Chemistry; University of Strathclyde; Thomas Graham Building 295 Cathedral Street Glasgow G1 1XL UK
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Šagud I, Antol I, Marinić Ž, Šindler-Kulyk M. Photoinduced Intramolecular formal [4 + 2] Cycloaddition of Aryl-Substituted o-Vinylstyryl-2-oxazoles To Form Benzo[f]quinoline Derivatives: Experimental Results and Theoretical Interpretation. J Org Chem 2015; 80:9535-41. [DOI: 10.1021/acs.joc.5b01504] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ivana Šagud
- Department
of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | | | | | - Marija Šindler-Kulyk
- Department
of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
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Sagud I, Božić S, Marinić Z, Sindler-Kulyk M. Photochemical approach to functionalized benzobicyclo[3.2.1]octene structures via fused oxazoline derivatives from 4- and 5-(o-vinylstyryl)oxazoles. Beilstein J Org Chem 2014; 10:2222-9. [PMID: 25246981 PMCID: PMC4168845 DOI: 10.3762/bjoc.10.230] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 09/04/2014] [Indexed: 12/11/2022] Open
Abstract
Novel cis/trans-4- and cis/trans-5-(2-vinylstyryl)oxazoles have been synthesized by Wittig reactions from the diphosphonium salt of α,α’-o-xylene dibromide, formaldehyde and 4- and 5-oxazolecarbaldehydes, respectively. In contrast, trans-5-(2-vinylstyryl)oxazole has been synthesized by the van Leusen reaction from trans-3-(2-vinylphenyl)acrylaldehyde which is prepared from o-vinylbenzaldehyde and (formylmethylene)triphenylphosphorane. The 4- and 5-(2-vinylstyryl)oxazoles afford, by photochemical intramolecular cycloaddition, diverse fused oxazoline-benzobicyclo[3.2.1]octadienes, which are identified and characterized by spectroscopic methods. The photoproducts formed are relatively unstable and spontaneously or on silica gel undergo oxazoline ring opening followed by formation of formiato- or formamido-benzobicyclo[3.2.1]octenone derivatives. On irradiation of 4-(2-vinylstyryl)oxazole small quantities of electrocyclization product, 4-(1,2-dihydronaphthalen-2-yl)oxazole, are isolated and spectroscopically characterized.
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Affiliation(s)
- Ivana Sagud
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Simona Božić
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Zeljko Marinić
- NMR Center, Rudjer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Marija Sindler-Kulyk
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
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Functionalization of the benzobicyclo[3.2.1]octadiene skeleton via photocatalytic oxygenation of thiophene and furan derivatives: The impact of the type and position of the heteroatom. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.01.055] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Vuk D, Marinić Ž, Molčanov K, Margetić D, Škorić I. Thermal electrocyclization reactions II: benzooctatetraenes and benzodecapentaenes. Tetrahedron 2014. [DOI: 10.1016/j.tet.2013.12.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Vuk D, Potroško D, Šindler-Kulyk M, Marinić Ž, Molčanov K, Kojić-Prodić B, Škorić I. Synthesis and photochemical transformations of new butadiene chromophores: The influence of the nature and position of chlorine substituent on the photoinduced behaviour. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.07.052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Rajappa S, Gumaste VK. Reactivity of Thiophenes, Oligothiophenes and Benzothiophenes. ADVANCES IN HETEROCYCLIC CHEMISTRY 2013. [DOI: 10.1016/b978-0-12-404598-9.00001-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Photochemical transformation of β,β′-dithienyl substituted o-divinylbenzenes leading to 1,2-dihydronaphthalenes or fused pentacyclic compounds: first evidence of electrocyclization process via 2,3-dihydronaphthalene intermediates. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.06.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Škorić I, Kikaš I, Kovács M, Fodor L, Marinić Ž, Molčanov K, Kojić-Prodić B, Horváth O. Synthesis, photochemistry, and photophysics of butadiene derivatives: influence of the methyl group on the molecular structure and photoinduced behavior. J Org Chem 2011; 76:8641-57. [PMID: 21928770 DOI: 10.1021/jo200691x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Novel butadiene derivatives display diverse photochemistry and photophysics. Excitation of 2-methyl-1-(o-vinylphenyl)-4-phenylbutadiene leads to the dihydronaphthalene derivative, whereas photolysis of the corresponding model o-methyl analogue results in the formation of the naphthalene-like derivative, deviating from the nonmethylated analogue of the prior starting compound and producing benzobi- and -tricyclic compounds. The effect of the methyl substituents is even more dramatic in the case of the dibutadienes. The parent unsubstituted compound undergoes photoinduced intramolecular cycloaddition giving benzobicyclo[3.2.1]octadiene, whereas the photochemical reaction of the corresponding dimethylated derivative shows only geometrical isomerization due to the steric effect of the substituents. Methyl groups on the butadiene backbones reduce the extent of conjugation, causing a blue-shift of the characteristic absorption band. The fluorescence efficiency is dramatically decreased, as a consequence of nonplanarity and reduced rigidity of the molecules due to the crowding by the methyl and phenyl groups together. Four molecules of very similar structures show dramatically different photoinduced behavior, revealing how changes of the nature and position of the substituents are valuable in understanding the photophysics and photochemistry of these types of compounds.
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Affiliation(s)
- Irena Škorić
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, 10000 Zagreb, Croatia.
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Functionalization of the benzobicyclo[3.2.1]octadiene skeleton via photocatalytic and thermal oxygenation of a furan derivative. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.09.076] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Ivanova OA, Budynina EM, Chagarovskiy AO, Kaplun AE, Trushkov IV, Melnikov MY. Lewis Acid-Catalyzed [3+4] Annulation of 2-(Heteroaryl)- cyclopropane-1,1-dicarboxylates with Cyclopentadiene. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201000783] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Šagud I, Faraguna F, Marinić Ž, Šindler-Kulyk M. Photochemical Approach to Naphthoxazoles and Fused Heterobenzoxazoles from 5-(Phenyl/heteroarylethenyl)oxazoles. J Org Chem 2011; 76:2904-8. [DOI: 10.1021/jo1025942] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ivana Šagud
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Fabio Faraguna
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
| | - Željko Marinić
- NMR Center, Rudjer Bošković Institute, Bijenička cesta 54, 10000 Zagreb, Croatia
| | - Marija Šindler-Kulyk
- Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, 10000 Zagreb, Croatia
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Škorić I, Pavošević F, Vazdar M, Marinić Ž, Šindler-Kulyk M, Eckert-Maksić M, Margetić D. Thermal reaction of [3,4]-benzo-8-substituted-3Z,5Z,7E-octatetraenes and quantum-chemical study of the (8π,6π)-electrocyclisation. Org Biomol Chem 2011; 9:6771-8. [DOI: 10.1039/c1ob05802a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kikaš I, Škorić I, Marinić Ž, Šindler-Kulyk M. Synthesis and phototransformations of novel styryl-substituted furo-benzobicyclo[3.2.1]octadiene derivatives. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.09.093] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Škorić I, Šmehil M, Marinić Ž, Molčanov K, Kojić-Prodić B, Šindler-Kulyk M. Photochemistry of ω-(o-vinylphenyl)-ω′-(phenyl/2-furyl) butadienes: New approach to 4-substituted benzobicyclo[3.2.1]octadienes. J Photochem Photobiol A Chem 2009. [DOI: 10.1016/j.jphotochem.2009.07.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Škorić I, Ciorba S, Spalletti A, Šindler-Kulyk M. Novel conjugated ω,ω′-diaryl hexatriene derivatives with the central double bond in the benzofuran ring and their photochemical and photophysical properties. J Photochem Photobiol A Chem 2009. [DOI: 10.1016/j.jphotochem.2008.12.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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