|
1
|
Özgür M, Yılmaz M, Nishino H, Çinar Avar E, Dal H, Pekel AT, Hökelek T. Efficient syntheses and antimicrobial activities of new thiophene containing pyranone and quinolinone derivatives using manganese(iii) acetate: the effect of thiophene on ring closure–opening reactions. NEW J CHEM 2019. [DOI: 10.1039/c9nj00054b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The syntheses, spectroscopic properties, and antimicrobial activities of new pyranones and quinoline-based dihydrofurans accompanied by 3-alkenyl-substituted structures were investigated.
Collapse
Affiliation(s)
- Mehtap Özgür
- Department of Chemistry
- Ankara University
- 06100 Ankara
- Turkey
| | - Mehmet Yılmaz
- Department of Chemistry
- Kocaeli University
- 41380 Kocaeli
- Turkey
| | - Hiroshi Nishino
- Department of Chemistry
- Kumamoto University
- Kurokami
- Kumamoto 860-8555
- Japan
| | - Eda Çinar Avar
- Department of Chemistry
- Gazi University
- 06500 Ankara
- Turkey
| | - Hakan Dal
- Department of Chemistry
- Anadolu University
- Eskişehir
- Turkey
| | - A. Tarık Pekel
- Department of Chemistry
- Ankara University
- 06100 Ankara
- Turkey
| | | |
Collapse
|
|
2
|
Akpınar DE, Özgür (Nee Yakut) M, Aslan H, Alagöz O, Öktemer A, Dal H, Hökelek T, Loğoğlu E. Synthesis, characterization, and investigations of antimicrobial activity of benzopyrans, benzofurans and spiro[4.5]decanes. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1509094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Deniz E. Akpınar
- Department of Chemistry, Faculty of Science, Ankara University, Tandoğan, Ankara, TURKEY
| | | | - Hakan Aslan
- Department of Chemistry, Faculty of Science, Ankara University, Tandoğan, Ankara, TURKEY
- Department of Chemistry, Faculty of Arts and Sciences, Sinop University, Sinop, Turkey
| | - Oğuzhan Alagöz
- Department of Chemical Engineering, Faculty of Engineering, Afyon Kocatepe University, 03200, Afyonkarahisar, Turkey
| | - Atilla Öktemer
- Department of Chemistry, Faculty of Science, Ankara University, Tandoğan, Ankara, TURKEY
| | - Hakan Dal
- Department of Chemistry, Anadolu University, Yenibağlar, Eskişehir, Turkey
| | - Tuncer Hökelek
- Department of Physics, Hacettepe University, Beytepe, Ankara, Turkey
| | - Elif Loğoğlu
- Department of Chemistry, Faculty of Sciences, Gazi University, Beşevler, Ankara, Turkey
| |
Collapse
|
|
3
|
Zhang Z, Li C, Wang SH, Zhang FM, Han X, Tu YQ, Zhang XM. Tandem S N2' nucleophilic substitution/oxidative radical cyclization of aryl substituted allylic alcohols with 1,3-dicarbonyl compounds. Org Biomol Chem 2018; 15:3239-3247. [PMID: 28332678 DOI: 10.1039/c7ob00620a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel and efficient tandem SN2' nucleophilic substitution/oxidative radical cyclization reaction of aryl substituted allylic alcohols with 1,3-dicarbonyl compounds has been developed by using Mn(OAc)3 as an oxidant, which enables the expeditious synthesis of polysubstituted dihydrofuran (DHF) derivatives in moderate to high yields. The use of weakly acidic hexafluoroisopropanol (HFIP) as the solvent rather than AcOH has successfully improved the yields and expanded the substrate scope of this type of radical cyclization reactions. Mechanistic studies confirmed the cascade reaction process involving a final radical cyclization.
Collapse
Affiliation(s)
- Zhen Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | | | | | | | | | | | | |
Collapse
|
|
4
|
Aslan H, Öktemer A, Dal H, Hökelek T. Synthesis of ferrocene substituted dihydrofuran derivatives via manganese(III) acetate mediated radical addition-cyclization reactions. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.11.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
|
|
5
|
Miao CB, Liu R, Sun YF, Sun XQ, Yang HT. Base-controlled selective construction of polysubstituted dihydrofuran and furan derivatives through an I2-mediated cyclization. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.12.078] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|