New polyphenylene-based macroligands for palladium-containing catalysts

Achievements in polycondensation and condensation polymers

“…It is interesting that such polymers may be applied as matrixes for the design of palladium based nano sized catalysts [161][162][163]. The use of acetylene containing monomers in the Sonogashira reaction provides for the synthesis of polyphenylenethynylenes.…”

Photoinduced solvent-free polymerization of 1-(iodomethyl)benzene

“…Yield of polymer II 0.8 g (65%, calculated for C 588 H 506 ), black powder, mp 138-140°C. 1 The IR spectra were recorded on a Bruker Vertex 70 Ram II spectrometer with Fourier transform from thin films or KBr pellets. The 1 H and 13 C NMR spectra were measured on a Bruker DPX-400 spectrometer at 400 and 100 MHz, respectively.…”

“…Linear polybenzyl oligomers and polymers are analogs of poly-p-phenylenes which are used for the preparation of display devices, light sources, photodetectors, sensors, field transistors, laser diodes, and heat-resistant polymeric materials, as well as in electrophotography [1,2]. Main procedures for the synthesis of linear and branched polybenzyls and poly-(methylene)naphthalenes are based on self-condensation of benzyl chloride and 1-chloromethylnaphthalene in the presence of AlCl 3 , ZnCl 2 , TiCl 4 [3], and SnCl 4 [4] and on the reaction of benzyl salicylate in the presence of PCl 5 [5].…”

Photolysis of 2-iodo-1-phenylethanone: A new route to polyphenylenes

“…In the 1 H NMR spectrum of polyphenylene II, a multiplet in the region δ 7.27-8.30 ppm is typical of para-and/or meta-substituted benzene rings [1]. The IR spectrum of II contained specific narrow peaks in the region 830-841 cm -1 due to vibrations of para-substituted benzene rings [8].…”

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SHORT COMMUNICATIONSConjugated polyphenylenes are used as materials for manufacture of display devices for electrophotography, illuminating equipment, photodetectors, sensors, field transistors, laser diodes, as well as heat-resistant polymeric materials [1,2]. At present, numerous methods for the synthesis of conjugated polyphenylenes from mono-and diacetylenic compounds and monoand diethynylarenes in the presence of metal complex or acid catalysts are known [3].

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