Facile Synthesis of 3-Alkoxy-4-cyanothiophenes As New Building Blocks for Donor−Acceptor Conjugated Systems
作者:Noémie Hergué、Charlotte Mallet、Gurunathan Savitha、Magali Allain、Pierre Frère、Jean Roncali
DOI:10.1021/ol200296j
日期:2011.4.1
3-Alkoxy-4-cyanothiophenes are efficiently synthesized in two steps from the readily available 4-cyano-3-oxotetrahydrothiophene. Regioisomers of bithiophene derivatives are easily synthesized by playing on the strong electronic dissymmetry of the thiophene ring induced by the alkoxy and cyano groups.