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    Phenolysis of 2, 2?-Biphenoxy Thiophosphinic Chloride: Crystal Structures and DFT Calculations of 2, 2?-Biphenyl 4-Tert-Butylphenyl Thiophosphinate and 2, 2?-Biphenyl 3,4-di-Methylphenyl Thiophosphinate
    (Taylor & Francis Ltd, 2023) Begec, Saliha; Yuksel, Fatma; Chumakov, Yurii; Alatas, Sümeyya; Kilic, Adem
    In this work, firstly, thiophosphoryl chloride, PSCl3 (1), with 2,2'-dihydroxybiphenyl, 2,2 '-HOC6H4C6H4OH (2) were reacted. 2, 2 '-biphenoxy thiophosphinic chloride (3) was obtained from this reaction. Second, the reactions of compound (3) with sterically hindered phenol derivatives (4a-4h) were investigated. Novel alkyl-substituted phenyl 2, 2 '-biphenyl-thiophosphinate esters (C6H4O)(2)P(S)OAr (5-12) were obtained from these reactions. Structures of (5-12) were defined by IR, H-1, C-13, P-31 NMR spectroscopy, and elemental analysis. The molecular structures of 2, 2 '-biphenyl 4-tert-butylphenyl thiophosphinate (11) and 2, 2 '-biphenyl 3,4-di-methylphenyl thiophosphinate (6) were determined by single-crystal X-ray diffraction. Density functional theory (DFT) calculations of compounds 6 and 11 were made. The theoretical analysis of IR and NMR spectra was performed by DFT based on B3LYP level of theory.
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    The syntheses of 2-hydroxybenzothiazole substituted cyclotriphosphazenes: Spectroscopic characterizations
    (Taylor & Francis Ltd, 2024) Begec, Saliha
    The nucleophilic substitution reactions of mono- and bis-spiro-2,2'-dioxybiphenyl cyclotriphosphazenes (1a and 1b) with 2-hydroxybenzothiazole (2) were performed in the presence of metallic sodium in THF. Two novel 2-oxybenzothiazole-substituted spiro-2,2 '-dioxybiphenyl cyclotriphosphazene derivatives (3a and 3b) were obtained from these reactions. Both compounds (3a, 3b) have been characterized by elemental analysis as well as by H-1, C-13 and P-31 NMR spectroscopy. Compounds 3a and 3b are reported for the first time in this study.
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    Synthesis and characterization of aryltriphenylsilyl ethers and crystal structure of 2,4,6-tri-methylphenyl triphenylsilyl ether
    (Taylor & Francis Ltd, 2013) Begec, Saliha; Kilic, Adem; Yuksel, Fatma; Alatas, Suemeyya; Kan, Nilay
    Synthesis and structures of aryl triphenylsilyl ether derivatives are reported. Reactions of chlorotriphenylsilane, (C6H5)(3)SiCl (1), with sodium salts of sterically hindered phenol derivatives (2a-2i) were investigated. Aryltriphenylsilyl ethers (C6H5)(3)SiOAr (3-8) were obtained from these reactions. Structures of 3-8 were defined by IR, H-1, C-13, Si-29 NMR spectroscopy, elemental analysis, and ESI-MS spectra. The molecular structure of 2,4,6-tri-methylphenyl triphenylsilyl ether (6) were determined by single-crystal X-ray diffraction.
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    Synthesis and characterization of new spiro cyclotriphosphazene derivatives
    (Elsevier, 2022) Begec, Saliha
    In the present study, reactions of spiro-N,N-diisopropylpropane-1,3-diamino-2,2-4,4 tetrachlorocyclotriphosphazatriene (1) with 2,2'-dihydroxybiphenyl (2), and 3-amino-1-propanol (3) have been investigated. Dispiro (4, 6) and trispiro (5) phosphazene derivatives were obtained from these reactions. New spirocyclotriphosphazenes (4-6) were characterized by elemental analysis, H-1, C-13 and P-31 NMR spectroscopy.
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    SYNTHESIS AND CHARACTERIZATION OF NOVEL ALKYL-SUBSTITUTED ARYL DIPHENYLPHOSPHINATE ESTERS
    (Taylor & Francis Ltd, 2011) Begec, Saliha; Alatas, Sumeyya; Kilic, Adem
    In this work, the reactions of diphenylphosphinic chloride, (C6H5)(2)P(O)Cl, 1, with the sodium salts of sterically hindered phenol derivatives (2a-2j) were investigated. Novel alkyl-substituted aryl diphenyl phosphinate esters (C6H5)(2)P(O)OAr (3-12) were obtained from these reactions. Satisfactory analytical and spectroscopic results were obtained for all the new compounds.
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    Synthesis and characterization of oxime-bearing hexakis(2-formylphenoxy)-phosphazene and its derivatives
    (John Wiley & Sons Inc, 2007) Pamukci, Orhan; Cil, Erol; Begec, Saliha; Arslan, Mustafa
    Hexakis (2-formylphenoxy)cyclotrlphosphazene (2) was obtained from the reaction of hexachlorocylotriphosphazene (1) with 2-hydroxybenzaldehyde. Hexakis (2-[(hydroxyimino) methyl]phenoxy)cyclotriphosphazene (3) was synthesized from the reaction of 2 with hydroxlaminehydrochloride in pyridine. Hexasubstituted compounds 4, 5, 6, 8, 9, and 10 were obtained from the reactions of 3 with methyl iodide, ethyl bromide, allyl bromide, propanoyl chloride, benzoyl chloride, and 4-methoxybenzoyl chloride, respectively. Disubstituted product 7 was obtained from the reaction of 3 with chloroacetyl chloride. Pure and defined products could not be obtained from the reaction of 3 with acetyl chloride, benzyl chloride, and 2-chlorobenzoyl chloride. The compounds were characterized by elemental analysis and IR, H-1, C-13, and P-31 NMR spectroscopy. (c) 2007 Wiley Periodicals, Inc.
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    Synthesis and structural characterization of N,N-spiro cyclotriphosphazene derivatives with one stereogenic center
    (Taylor & Francis Ltd, 2023) Begec, Saliha
    In this study, N,N-spiro cyclotriphosphazene derivatives (1a-4a) with one stereogenic center were synthesized in two steps. Firstly; mono substituted phosphazene compounds [N3P3Cl5NHC6H5 (1), N3P3Cl5OC5H4N (2), N3P3Cl5OC6H2-Me-2,4,6 (3), N3P3Cl5OC6H2-Bu-t-2-Me-4 (4)] were prepared. Secondly, these compounds (1-4) were allowed to react with symmetrical difunctional reagent N,N '-diisopropylpropane-1,3-diamine to obtain cyclotriphosphazenes having one stereogenic center. The reaction of N3P3Cl5XAr (1-4) with N,N '-diisopropylpropane-1,3-diamine was carried out in dichloromethane. Four new N,N-spiro phosphazene compounds (1a-4a) which have one stereogenic center were obtained from these reactions. The structures of these compounds were characterized by H-1, C-13 and P-31 NMR spectrometry and elemental analyses.