1589518-79-5Relevant articles and documents
Facile synthesis of indene and fluorene derivatives through AlCl3-catalyzed cyclization of in situ formed iminium ions
Chen, Lei,Teng, Wei,Geng, Xin-Le,Zhu, Yi-Fan,Guan, Yong-Hong,Fan, Xiaohui
, (2017/10/05)
A simple AlCl3-catalyzed condensation/cyclization cascade process between aldehydes and sulfonamide is reported, in which two new bonds and one five-membered ring are simultaneously formed with water as the byproduct. This method provides a rapid access to indenamine and 9-aminofluorene derivatives. Additionally, these products can be transformed into corresponding indanones and fluorenones under the developed conditions.