نتایج جستجو برای: phthalonitrile

تعداد نتایج: 124  

Journal: :Molecules 2015
Felix Bächle Michael Hanack Thomas Ziegler

In continuation of our work on glycoconjugated phthalocyanines, two new water soluble, non-ionic zinc(II) phthalocyanines have been prepared and fully characterized by means of ¹H-NMR, 13C-NMR, MALDI-TOF, ESI-TOF, UV-Vis spectroscopy, emission spectroscopy and fluorescence lifetime measurements. The carbohydrate-containing phthalonitrile precursors were synthesized through a copper-catalyzed az...

Journal: :Dalton transactions 2015
Dilek Çakır Tayfun Arslan Zekeriya Biyiklioglu

Cobalt(II) and manganese(III) phthalocyanines bearing peripherally and non-peripherally tetra substituted {(2E)-3-[4-(dimethylamino)phenyl]prop-2-enoyl}phenoxy groups were synthesized by cyclotetramerization of the phthalonitrile derivatives and their electrochemical properties were examined using CV and SWV techniques for the first time. The novel compounds were characterized by using IR, (1)H...

Journal: :Dalton transactions 2015
Petru Apostol Ahmed Bentaleb Mbolotiana Rajaoarivelo Rodolphe Clérac Harald Bock

Metal-free and metal(II) all-endo-tetraalkoxy-phthalocyanines of C4h symmetry are synthesised regiospecifically from 3-(2-butyloctyloxy)phthalonitrile with lithium octanolate and subsequent metal ion exchange. The voluminous, yet not overly large, and racemically disordered alkoxy substituent not only renders the cyclotetramerisation regiospecific, but also leads to liquid crystalline self-asse...

2016
Ruiqi Yang Renbo Wei Kui Li Lifen Tong Kun Jia Xiaobo Liu

Dielectric film with ultrahigh thermal stability based on crosslinked polyarylene ether nitrile is prepared and characterized. The film is obtained by solution-casting of polyarylene ether nitrile terminated phthalonitrile (PEN-Ph) combined with post self-crosslinking at high temperature. The film shows a 5% decomposition temperature over 520 °C and a glass transition temperature (Tg) around 38...

Journal: :Molecules 2017
Naceur Hamdi Rawdha Medyouni Hallouma Bilel Lamjed Mansour Antonio Romerosa

In this study, novel phthalonitrile 3 and their corresponding metal-free 4 and metallophthalocyanine derivatives 5-7 bearing 2-isopropenyl-4-methoxy-1-methylbenzene groups were synthesized and characterized. 3,4-Dihydropyrimidinones have been synthesized by a modified Biginelli-type reaction with various metallophthalocyanines 5-7 as catalysts. Compared to the classical Biginielli reaction, the...

Journal: :Angewandte Chemie 2021

Phthalocyanines and porphyrins are often the scaffolds of choice for use in widespread applications. Synthetic advances allow bespoke derivatives to be made, tailoring their properties. The selective synthesis unsymmetrical systems, particularly phthalocyanines, has remained a significant unmet challenge. Porphyrin-phthalocyanine hybrids offer potential combine favorable features both parent st...

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