68827-72-5Relevant academic research and scientific papers
Ionic Liquid [DABCO-H][HSO4] as a Highly Efficient and Recyclable Catalyst for Friedel-Crafts Alkylation in the Synthesis of Bis(naphthol)methane and Bis(indolyl)methane Derivatives
Tong, Jun,Yang, Cheng,Xu
, p. 3559 - 3566 (2016)
A simple and highly efficient approach to the synthesis of bis(naphthol)methane (BNM) and bis(indolyl)methane (BIM) derivatives has been developed. In the presence of 1,4-diazabicyclo[2.2.2]octane (DABCO)-based ionic liquid catalysts, which are environmental friendly, inexpensive, and recyclable, the reaction afforded the corresponding products in good to excellent yields within short times under solvent-free conditions. The catalysts can be easily recovered and reused several times without significant loss in activity.
Green and diasteroselective oxidative cyclization of bisnaphthols to spirans
Alizadeh,Khodaei,Moradi
experimental part, p. 351 - 358 (2010/09/03)
Hydrogen peroxide/MoO3, as an efficient and clean oxidizing system was used to afford diasteroselective oxidative cyclization of bisnaphthols to spirans in ethanol at 60 °C with high yields. Bisnaphthols were prepared by the reaction of a series of aldehydes and 2-naphthol in the presence of a catalytic amount of H3[P(Mo3O 10)4].nH2O (HPA) in refluxing dichloromethane.
