A reliable synthetic protocol toward a series of fused chalcogenopheno[1]benzochalcogenophene (CBC) building blocks was developed based on a Fiesselmann reaction. The obtained CBC units were applied in McMurry and Stille coupling reactions toward symmetric regioisomeric ene-linked dimers. These π-conjugated compounds were characterized regarding their photophysical and electrochemical properties and
Microwave-assisted cyanation of 3-bromo-3-(1-hydroxyalkyl)benzo[b]selenophene derivatives
作者:Pavel Arsenyan、Edgars Paegle、Sergey Belyakov
DOI:10.1016/j.mencom.2015.03.013
日期:2015.3
Microwave-assisted palladium-catalyzed cyanation of 3-bromo-2-(1-hydroxyalkyl)benzo[b]selenophene affords 3-cyano derivatives. Raising the temperature promotes formation of 2-(1-alkenyl)-3-carbamoyl isomers through intramolecular transfer of water.