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    ABSTRACT: Optically pure diols (I) catalyze the addition of diethylzinc to aromatic aldehydes to give the corresponding alcohols with up to 99% enantiomeric excess.
    Tetrahedron Letters 09/2014; 55(16). DOI:10.1002/chin.201439031
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    ABSTRACT: In this study, we described the syntheses of new zinc(II) phthalocyanine compounds derived from (1R,2R)-1,2-diphenyl-1,2-ethanediol units. The phthalonitrile precursors 3 and 4 were synthesized by the reaction of 4,5-dichlorophthalonitrile with (1R,2R)-1,2-diphenyl-1,2-ethanediol. The synthesis of zinc(II) phthalocyanine 5 and zinc(II) phthalocyanine polymer 6 by cyclotetramerization of corresponding phthalonitrile derivative were accomplished in the presence of Zn(CH3CO2)(2) in a Schlenk tube containing quinoline under nitrogen atmosphere. The zinc(II) phthalocyanine 5 showed enhanced solubility in various organic solvents. The aggregation behavior of phthalocyanines was investigated at different concentrations in different solvents. Both phthalocyanines were found to exist in non-aggregated form at concentrations between 10 x 10(-6) and 1 x 10(-6) mol dm(-3). As the concentration increased to 5 x 10(-5) mol dm(-3), a deviation from ideality was observed for both phthalocyanines. The novel compounds were characterized by a combination of elemental analysis and H-1 NMR, C-13 NMR, IR, UV-Vis and MS spectral data.
    Journal of Molecular Structure 03/2014; 1067. DOI:10.1016/j.molstruc.2014.03.037
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    ABSTRACT: The syntheses of metal-free phthalocyanine 3 and metallophthalocyanines 4 and 5 with four 12-membered dithiadiaza macrocycles containing piperazine moiety on peripheral position have been accomplished by cyclotetramerization of 1,4-bis(2-(4,5-dicyano-1,2-pheylene)sulfanediyl)piperazine-2,5-dione 2. The formation of macrocycle containing piperazine subunit 2 did not require a high dilution technique or template effect and was performed by the reaction of 1 containing N-substituted 2-chloroamide moiety and sodium hydroxide in DMF. Metal-free phthalocyanine and metallophthalocyanines showed the enhanced solubility in organic solvents. These new compounds were characterized by a combination of elemental analysis and 1H NMR, 13C NMR, IR, UV–vis and MS spectral data.
    Inorganic Chemistry Communications 02/2014; 40:164–167. DOI:10.1016/j.inoche.2013.12.008

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Journal of Materials Processing Technology 05/2007; DOI:10.1016/j.jmatprotec.2007.04.123
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Composites Part A Applied Science and Manufacturing 08/2013; DOI:10.1016/j.compositesa.2005.05.036
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