157202-49-8Relevant academic research and scientific papers
2,5-Dialkoxy Substituted Oligo- and Poly(1,4-phenyleneethenylene)s
Kretzschmann, H.,Meier, H.
, p. 247 - 254 (1994)
O-Alkylation and regioselective Rieche formylation of 2-methylhydroquinone (1) yields the 2,5-dialkoxy-4-methylbenzaldehydes 4a-j.The corresponding azomethines 5a-j enter in a strongly alkaline medium a selfcondensation reaction leading to the title compounds 6/7a-j.These conjugated oligomers and polymers possess highly regular structures with exclusively (E)-configurated double bonds.GPC, IR, 1H-, 13C-NMR and MS-FD measurements were used for their characterization.Somewhat different results were obtained for the similarly prepared Schiff base 5l which contains chlorine substituents in the side chains.Cleavage of hydrogen chloride leads not only to unsaturated alkoxy groups; additionally, cyclization reactions (5l8l) are observed.
Tuning of photo- and electroluminescence of new soluble, PPV-analogous short-chain compounds with naphthalene moieties
Martinez-Ruiz,Behnisch,Schweikart,Hanack,Lueer,Oelkrug
, p. 1294 - 1301 (2007/10/03)
A series of oligomers analogous to poly(p-phenylenevinylene) (PPV), combining naphthalene and benzene as aromatic units, have been synthesized by a Knoevenagel reaction. By measuring UV/Vis spectra, photoluminescence (PL) and electroluminescence (EL), we
