66595-92-4

Upstream product

• 135-19-3 β-naphthol 
• 552-89-6 2-nitro-benzaldehyde 

Downstream Products

• 71-43-2 benzene 
• 66596-10-9 14-(2-nitrophenyl)-14H-dibenzo[a,j]xanthene 
• 135-19-3 β-naphthol 
• 66596-24-5 bis-(2-acetoxy-[1]naphthyl)-(2-nitro-phenyl)-methane 

Relevant academic research and scientific papers

Green and diasteroselective oxidative cyclization of bisnaphthols to spirans

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.

Investigation of keto-enol tautomers during the synthesis of aryl-bis (2-hydroxy-1-naphthyl)methanes

This study investigated the existence of keto-enol tautomers for the first time during the synthesis of aryl-bis(2-hydroxy-1-naphthyl)methane from 2-naphthol and p-tolualdehyde or 4-chlorobenzaldehyde in methanol using CuSO4.5H2O as catalyst under reflux condition. The exclusive formation of aryl-bis(2-hydroxy-1-naphthyl)methanes was observed in dichloromethane at room temperature in the presence of BF3.OEt2/AcOH as catalyst. The keto products were isolated and characterized by 1H NMR, 13C NMR, COSY and DEPT spectra. [Figure not available: see fulltext.]