We have developed a simple and direct method for the synthesis of arylethers by reacting alcohols/phenols (ROH) with aryl ammonium salts (ArNMe3+), which are readily prepared fromanilines (ArNR′2, R′=H or Me). This reaction proceeds smoothly and rapidly (within a few hours) at room temperature in the presence of a commercially available base, such as KOtBu or KHMDS, and has a broad substrate scope
The organic superbase tBu‐P4 catalyzes methoxy‐alkoxy exchangereactions on (hetero)arenes with alcohols. The catalytic reaction proceeded efficiently with electron‐deficient methoxy(hetero)arenes as well as with a variety of alcohols, including 3‐amino‐1‐propanol, β‐citronellol, menthol, and cholesterol. An intramolecular version of this reaction furnished six‐ and seven‐membered ring compounds.
Diimide-based semiconductor materials and methods of preparing and using the same
申请人:Facchetti Antonio
公开号:US20080185577A1
公开(公告)日:2008-08-07
Diimide-based semiconductor materials are provided with processes for preparing the same. Composites and electronic devices including the diimide-based semiconductor materials also are provided.