114468-34-7Relevant academic research and scientific papers
Synthesis, structure, spectral properties, and electrochemistry of bis(crown ether) containing 1,3-distyrylbenzenes
Nuriev,Fedorov,Moiseeva,Freidzon, A. Ya.,Kurchavov,Vedernikov,Medved’ko,Pod’yacheva,Vatsadze,Gromov
, p. 1726 - 1737 (2017)
The reaction of tetraethyl [1,3-phenylenedi(methylene)]bis(phosphonate) with formyl derivatives of benzocrown-ethers or formyl derivatives of o-dimethoxybenzene lead to high yield formation of the respectful bis(crown ether) containing 1,3-distyrylbenzenes or tetramethoxy-substituted 1,3-distyrenebenzenes. NMR spectra and quantum-chemical calculations showed the prevalence of unsymmetrical syn/anti,(syn,anti),syn/anti-conformations in 1,3-distyrylbenzenes. 1,3-Distyrylbenzenes absorb in shorter wavelength spectral region and have a weaker fluorescence than 1,4-distyrylbenzenes. The difficulty in the electrochemical reduction of 1,3-distyrylbenzenes comparing with 1,4-distyrylbenzenes is due to a less effective conjugation system in the metaderivatives.
Photochemistry of Electron-Rich 1,3-Distyrylbenzenes
Noller, Klaus,Kosteyn, Frank,Meier, Herbert
, p. 1609 - 1616 (2007/10/02)
The 1,3-distyrylbenzenes 3, containing up to seven alkoxy groups, are subjected to the oxidative photocyclization.Elimination of methanol (3bb -> 7bb, 3bf -> 7bf) and quinone oxidation can occur as competitive or consecutive reactions in the formation of the products 6, 7, and 8.Selfsensitized generation of singlet oxygen by 6bf can lead to endoperoxide formation (6bf -> 11).
