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    6-Bromo-8-thia-1,4-epoxybicyclo[4.3.0]non-2-ene
    (INT UNION CRYSTALLOGRAPHY, 2005) Buyukgungor, O; Kosar, B; Demircan, A; Turac, E
    In the title compound, C8H9BrOS, the molecules are linked only by weak van der Waals interactions.
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    6-Chloro-8-thia-1,4-epoxybicyclo[4.3.0]non-2-ene
    (BLACKWELL PUBLISHING, 2006) Kosar, B; Gokturk, E; Kazaz, C; Buyukgungor, O; Demircan, A
    In the structure of the title compound, C8H9ClOS, the six-membered ring has a boat conformation and the S-containing five-membered ring has an envelope conformation. The molecules are linked only by weak van der Waals inter-actions.
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    Experimental and theoretical analysis of hydrogen absorption in LaNi5-H-2 reactors
    (PERGAMON-ELSEVIER SCIENCE LTD, 2005) Demircan, A; Demiralp, M; Kaplan, Y; Mat, MD; Veziroglu, TN
    Hydrogen absorption in two LaNi5-H2 reactors is experimentally and theoretically investigated. In the experimental program, two tanks are filled with LaNi5 alloy and hydrogen is charged with a constant pressure. The temperature changes in the tanks are measured at several locations and recorded in a computer. Hydriding process is identified from measured temperature histories. In the theoretical program, a two-dimensional mathematical model, which considers complex heat and mass transfer and fluid flow is developed and numerically solved. The numerical results are compared with the measured data to validate the mathematical model. A reasonable agreement between the numerical results and experimental data is obtained. (c) 2005 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.
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    Preparation of tricyclic nitrogen heterocycle via Intramolecular Diels-Alder reaction
    (FREUND PUBLISHING HOUSE LTD, 2002) Demircan, A; Parsons, PJ
    Preparation of rigid tricyclic nitrogen heterocycles under radicalic condition has been studied. Cyclisation is performed by Diels-Alder ring closure after radicalic hydrogenation. We did not observe any radicalic Cycloaddition / Fragmentation product 12. Tri-n-butyltin hydride (TBTH) and azobisisobutyronitrile were used in toluene or benzene to generate radicalic condition. Intramolecular, Diels-Alder (IMDA) reaction on substituted furan species gave tricyclic heterocycle.
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    Synthesis of new furan compounds: A study towards pyrrole ring
    (ASIAN JOURNAL OF CHEMISTRY, 2006) Karaarslan, M; Demircan, A
    Synthesis towards the precursor 1 for radicalic reaction has been studied. 3-Methyl-5-(5-methylfuran-2-yl)-4,5-dihydro-isoxazole, (7) was obtained from vinyl furan. 2-(4-lodo-pent-4-enyl)-4methyl-6-(5-methyl-furan-2-yl)-[1,3]oxazinane (13) was generated using the amino alcohol 8 and corresponding aldehyde (11). Selective protection on the amino alcohol was achieved. Steric hindrance of amino group behaved obstructive to a condensation reaction.
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    tert-Butyl N-(2-bromocyclohex-2-enyl)-N-(2-furylmethyl)carbamate
    (INT UNION CRYSTALLOGRAPHY, 2006) Kosar, B; Demircan, A; Karaarslan, M; Buyukgungor, O
    In the title compound, C16H22BrNO3, the molecules are linked only by weak van der Waals interactions. The bromo attached cyclohexane ring adopts a half-chair conformation.
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    The synthesis of fused ring systems utilising the intramolecular addition of alkenyl radicals to furans
    (WILEY-V C H VERLAG GMBH, 2003) Demircan, A; Parsons, PJ
    Studies on the intramolecular addition of alkenyl radicals to furans are reported. The alkenyl radicals undergo a 5-exotrig addition to furans and the resulting spirocyclic intermediate can fragment to give substituted cyclopentene rings. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003).