348120-50-3

Upstream product

• 540-63-6 ethane-1,2-dithiol 
• 89803-10-1 1,4-bis-(4-tert-butylbenzoyl)benzene 
• 63488-10-8 4-tert-butylmagnesium bromide 
• 623-27-8 terephthalaldehyde, 
• 98531-28-3 (4-tert-butyl-phenyl)-{4-[(4-tert-butyl-phenyl)-hydroxy-methyl]-phenyl}-methanol 

Relevant academic research and scientific papers

W(CO)6-Mediated desulfuroligomerization of bis-dithioacetals. New synthesis of substituted oligo(phenylene-vinylenes)

Treatment of bisdithioacetals of 1,4-diaroylbenzenes (4) with W(CO)6 in refluxing chlorobenzene afforded the corresponding substituted oligophenylenevinylenes (OPVs) (5). Average molecular weights determined by GPC indicate that OPVs 5 have 5-13 repetitive substituted phenylenevinylene units with narrow polydispersities. Emission in the blue-green to green region was observed for these OPVs depending on the nature of the substituent. The electron-donating alkoxy substituent shifted the emission to the longer wavelength whereas the electron-withdrawing trifluoromethyl group caused a blue shift in the fluorescence spectra.