The syntheses of some phthalocyanine intermediates and pigments

Türker, Lemi
Oker, Levent
The syntheses of various bromo and iodo derivatives of copper phthalocyanine pigments are reported; the halogenated primaries always led to trimeric or tetrameric acyclic compounds. Copper atoms were incorporated into the structures obtained from the corresponding iodinated primaries. An indirect route to the synthesis of copper tetra-3-iodophthalocyanine via the syntheses of copper tetra-3-amino- and copper tetra-3-nitro-phthalocyanine pigments is also reported.
Dyes and Pigments


The syntheses of some novel 2-substituted phenylazo-1,3-indandiones
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The synthesis of various novel 2-substituted phenylazo-1,3-indandiones (which are potential dyestuffs) by the Japp-Kligemann coupling reaction is reported. Ultraviolet-visible absorption spectra of the compounds were examined in various solvents and the compounds in solution exhibited azo-hydrazone tautomerism. The effects of various substituents on these equilibria are discussed.
Study of adsorption characteristics of long chain alkyl amine and petroleum sulfonate on silicates by electrokinetic potential, microflotation, FTIR, and AFM analyses
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The long-chain alkyl amines and petroleum sulfonates are mostly used to remove unwanted minerals from feldspar ores in acidic pHs. In this study, their adsorption characteristics on pure albite and quartz were investigated by electrokinetic potential measurements, microflotation tests, Fourier transform infrared spectroscopy, and atomic force microscopy studies. According to the results, amine had strong influence on zeta potentials of both albite and quartz turning them positive and resulting over 90% flot...
Characterization and kinetics of light crude oil combustion in the presence of metallic salts
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Uranyl (UO22+), the predominant aerobic form of uranium, is present in the ocean at a concentration of similar to 3.2 parts per 10(9) (13.7 nM); however, the successful enrichment of uranyl from this vast resource has been limited by the high concentrations of metal ions of similar size and charge, which makes it difficult to design a binding motif that is selective for uranyl. Here we report the design and rational development of a uranyl-binding protein using a computational screening process in the initi...
Synthesis and Characterization of Aluminum Containing Silica Aerogel Catalysts for Degradation of PLA
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Citation Formats
L. Türker and L. Oker, “The syntheses of some phthalocyanine intermediates and pigments,” Dyes and Pigments, pp. 81–92, 1990, Accessed: 00, 2020. [Online]. Available: