Syntheses of heterocyclic compounds using polyketide intermediates.

Tanyeli, Cihangir


Syntheses, characterization and optical properties of fluorine containing benzimidazole derivatives
İleri, Merve; Toppare, Levent Kamil; Çırpan, Ali; Department of Chemistry (2015)
In the last decades use of conducting polymers as electrochromic materials attracted tremendous attention all over the world due to properties like processability, high optical contrasts, fast switching times and tuning band gap via structural modifications. Low band gap polymers are pursued in order to increase the conductivity. For that matter donor – acceptor – donor theory is the most effective and commonly used method. The donor – acceptor – donor approach is not only used for obtaining low band gap po...
Syntheses of electroactive layers based on functionalized anthracene for electrochromic applications
Yıldırım, Ahmet; Tarkuc, S.; AK, MESUT; Toppare, Levent Kamil (Elsevier BV, 2008-05-30)
A new monomer (DTAT) was synthesized via linking 3,4-ethylenedioxythiophene (EDOT) on anthracene. The polymer, P(DTAT) was electrosynthesized by anodic oxidation of the corresponding monomer in 0.1 M LiClO4 acetonitrile (ACN) solution. The optical properties, the absorption spectra and the kinetics, were examined. Spectroelectrochemical analysis showed that P(DTAT) has an electronic band gap (due to pi-pi* transition) of 1.57 eV at 776 nm.
Syntheses of benzodithiophene and thienopyrroledione containing conjugated random polymers as components for organic solar cells
Azeri, Özge; Çırpan, Ali; Department of Chemistry (2017)
In recent years organic solar cells (OSC) have attracted considerable attention as promising candidates for renewable energy technology because of their low cost, light weight and flexibility. In this study, in order to improve the efficiency of a bulk heterojunction solar cell, two conjugated random polymers were designed. For this purpose, benzodithiophene and thienopyrroledione containing two random copolymers were synthesized. The effects of several acceptors such as benzotriazole and benzothiadiazole o...
Syntheses of some novel optical brightener kernels via 1,3-dipolar cycloaddition reactions
Türker, L; Güleç, A (Elsevier BV, 1990)
1,3-Dipolar cycloaddition reactions of 3-phenylphthalazinium-1-olate with various dipolarophiles which lead to some potential optical brightener structures are described. The cycloadducts obtained from vinyl ethers exhibited the Price effect, whereas N-vinyl carbazole adduct displayed atropisomerism.
Syntheses and investigation of electrochemical properties of selenophene and benzotriazole bearing copolymers
Ünay, Hande; Çırpan, Ali; Ünalan, Hüsnü Emrah; Department of Polymer Science and Technology (2014)
Polymers containing selenophene as a π bridge; poly(2-(2-octyldodecyl)-4-(selenophen-2-yl)-7-(5-(thiophen-2-yl)selenophen-2-yl)-2H-benzo[d][1,2,3]triazole) (P-SBTTh) and poly(2-(2-octyldodecyl)-4-(5-phenylselenophen-2-yl)-7-(selenophen-2-yl)-2H-benzo[d][1,2,3]triazole (P-SBTPh) were synthesized via Stille and Suzuki coupling, respectively. Optical and electrochemical properties were investigated and comparisons with their thiophene analogs were done. Selenophene substitution resulted in low band gap and red...
Citation Formats
C. Tanyeli, “Syntheses of heterocyclic compounds using polyketide intermediates.,” Middle East Technical University, 1984.