Yazar "Buyukgungor, Orhan" seçeneğine göre listele

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    (3aR,6S,7aR)-7a-Bromo-2-[(4-methylphenyl)sulfonyl]-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole
    (WILEY-BLACKWELL, 2011) Kosar, Basak; Demircan, Aydin; Arslan, Hakan; Buyukgungor, Orhan
    In the title compound, C15H16BrNO3S, the boat form of the six-membered ring is almost symmetrical with respect to the epoxy bridge. The two five-membered rings generated by the epoxy bridge of the six-membered ring adopt envelope conformations, whereas the N-containing five-membered ring adopts a twisted conformation. In the crystal, molecules are linked by C-H...O hydrogen bonds.
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    (3aR,6S,7aR)-7a-Bromo-2-methylsulfonyl-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole
    (WILEY-BLACKWELL, 2011) Temel, Ersin; Demircan, Aydin; Arslan, Hakan; Buyukgungor, Orhan
    In the title compound, C9H12BrNO3S, the two tetrahydrofuran rings adopt envelope conformations, the pyrrolidine ring adopts a half-chair conformation and the six-membered ring is in a boat conformation. In the crystal, weak intermolecular C-H...O hydrogen bonds link the molecules into R 2 (2)(8) and R 2 (2)(14) rings along the b-axis direction.
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    5-bromo-10-oxa-3-thiatricyclo[5.2.1.0(1,5)]-dec-8-ene 3,3-dioxide
    (BLACKWELL PUBLISHING, 2006) Kosar, Basak; Gokturk, Ersen; Demircan, Aydin; Buyukgungor, Orhan
    In the title compound, C8H9BrO3S, the six-membered ring has a boat conformation, the two O-containing five-membered rings have envelope conformations and the tetrahydrothiophene ring has a twist conformation. The molecules are linked only by weak van der Waals interactions.
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    5-chloro-10-oxa-3-thiatricyclo[5.2.1.0(1,5)] dec-8-ene 3,3-dioxide
    (BLACKWELL PUBLISHING, 2006) Kosar, Basak; Gokturk, Ersen; Demircan, Aydin; Buyukgungor, Orhan
    The title compound, C8H9ClO3S, has been synthesized from 2( 2-chloroallylsulfanylmethyl) furan by intramolecular thermal cycloaddition. The boat form of the six-membered ring is almost symmetric with respect to the epoxy bridge, and the five-membered ring containing the S atom has an envelope conformation.
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    Aminophosphines Derived from N-Phenylpiperazine and N-Ethylpiperazine: Synthesis, Oxidation Reactions, and Molybdenum Complexes
    (WILEY-BLACKWELL, 2011) Sarioz, Ozlem; Oznergiz, Sena; Saracoglu, Hanife; Buyukgungor, Orhan
    Functionalized aminophosphine of the type Ph2PNR2 (1,2) have been synthesized by treating Ph2PCl with N-phenylpiperazine or N-ethylpiperazine. Oxidation of these ligands with aqueous hydrogen peroxide, elemental sulfur or selenium afforded the corresponding phosphine oxides 3,4, sulfides 5,6, and selenides 7,8 in good yields. The molybdenum complexes of the aminophosphines have been obtained. All new compounds were fully characterized by IR, NMR, and microanalysis, and the molecular structures of two representative compounds were determined by single-crystal X-ray crystallography. (C) 2011 Wiley Periodicals, Inc. Heteroatom Chem 22: 679-686, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/hc.20733
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    Crystal structure, spectroscopic investigations and quantum chemical calculation studies of (3aR,6S,7aR)-7a-bromo-6-methyl-2-[(4-methylphenyl)sulfonyl]-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole: A combined experimental and theoretical studies
    (ELSEVIER SCIENCE BV, 2016) Alasalvar, Can; Demircan, Aydin; Kosar, Basak; Pekacar, Ali Ihsan; Buyukgungor, Orhan
    The crystal structure and spectroscopic properties of (3aR,65,7aR)-7a-bromo-6-methyl-2-[(4-methylphenyl)sulfonyl]-1,2,3,6,7,7a-hexahydro-3a,6-epoxyisoindole were determined by X-ray diffraction, IR and (CNMR)-C-13 and H-1 NMR spectroscopytechniques. We investigate molecular and crystal structure of the new sulfonamide, which was derived from an environmental friendly cyclization reaction in water. This work allow to the development of a stereo-selective tandem allylamine isomerization/Diels Alder cyclo-addition sequence led to rapid assembly of complex nitrogen containing heterocycles. The molecular geometry from X-ray determination, vibrational frequencies and NMR shifts values of the title compound in the ground state have been calculated by using CAM-B3LYP and B3LYP methods with 6-311++G(d,p) basis sets. The calculated results show that the optimized geometry can well regenerate the crystal structure and theoretical vibrational frequencies and chemical shift data are in good agreement with experimental data. Besides, it is examined nonlinear optic properties, molecular electrostatic potential map and HOMO-LUMO orbitals of the molecule. (C) 2016 Elsevier B.V. All rights reserved.
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    tert-Butyl 3a-chloro-2-methylperhydro-2,6a-epoxy-oxireno[e] isoindole-5-carboxylate
    (INT UNION CRYSTALLOGRAPHY, 2007) Kosar, Basak; Karaarslan, Muhsin; Yildiz, Yasar Kemal; Demircan, Aydin; Buyukgungor, Orhan
    In the title compound, C14H2OClNO4, the molecules are linked only by weak van der Waals interactions, and the three five-membered rings adopt envelope conformations.