Chemoenzymatic synthesis of various spiro cyclopentenone-pyran and spiro dihydropyran compounds

Ozdemirhan, Fazilet Devrim
Tanyeli, Cihangir
Guzel, Ayca


Chemoenzymatic synthesis of 2-ethyl-5-hydroxy-3- methoxy-cyclopent-2-enone
Dalfidan, Çağla; Demir, Ayhan Sıtkı; Department of Chemistry (2005)
Chiral hydroxylated cyclopentane derivatives are important precursors for biologically active compounds. Synthesis of these types of compounds in optically pure form found increased interest in pharmaceutical chemistry. 2-ethyl-cyclopentane-1.3-dione was acetoxylated using manganese III acetate at preferred positions. Enzyme catalyzed enantioselective hydrolysis or enantioselective acetoxylation of hydrolyzed acetoxy derivatives gives the corresponding hydroxylated diketones in optically pure form.
Carboligation reactions catalyzed by benzaldehyde lyase (BAL, EC covalently attached to epoxysilane modified Fe3O4@SiO2 nanoparticles
Tural, Bilsen; Turan, İlke Şimşek; Çelebi, Bülent; Yalınkılıç, İbrahim; Demir, Ayhan Gürbüz (2011-08-28)
Syntheses, electrochemical and spectroelectrochemical characterizations of quinoxaline-based conjugated polymers for organic photovoltaics
Yasa, Mustafa; Göker, Seza; Udum, Yasemin Arslan; Günbaş, Emrullah Görkem; Toppare, Levent Kamil (2017-04-02)
Surface free energy evaluation, plasma surface modification and biocompatibility studies of PMMA films
Özcan, Cantürk; Hasırcı, Nesrin; Department of Chemistry (2006)
PMMA is a widely used biomaterial especially in the fields of orthopedia, orthodontia and ophthalmology. When biocompatibility is considered, modification of the biomaterials’ surface may be needed to optimize interactions of the biomaterial with the biological environment. After the surface modifications one of the most important changes that occur is the change in the surface free energy (SFE). SFE is an important but an obscure property of the material and evaluation methods with different assumptions ex...
Nano structural metal composites : synthesis, structural and thermal characterization
Kaleli, Kadir; Kayran İşçi, Ceyhan; Department of Chemistry (2008)
In this work , metal functional polymers, namely Cr-PS-b-P2VP, Co-PS-b-P2VP, Au-PS-b-P2VP, Fe-PS-b-P2VP and Mo-PS-b-P2VP were prepared by thermal reaction of hexacarbonylchromium, Cr(CO)6, octacarbonyldicobalt,Co2(CO)8, hydrogentetrachloroaurate(III), H(AuCl4).4H2O, trichloroiron(III), FeCl3.6H2O, molybdenum(VI)oxide, MoO3 and PS-b-P2VP. TEM images indicated formation of AuIII, Cr and Co nanoparticles. On the other hand, crystalline structures were detected for Fe-PS-b-P2VP and Mo-PS-b-P2VP. Samples involvi...
Citation Formats
F. D. Ozdemirhan, C. Tanyeli, and A. Guzel, “Chemoenzymatic synthesis of various spiro cyclopentenone-pyran and spiro dihydropyran compounds,” 2012, vol. 244, Accessed: 00, 2020. [Online]. Available: