Kundu, Sandip Kumar published the artcile6-(¦Á-Hydroxy-¦Á-aryl/naphthyl)methyl-3,4-dihydro-2,5-benzodiazocin-1(2H)-ones and diphenylmethanes from C-2 arylated 1,3-indandiones, HPLC of Formula: 457-68-1, the publication is Journal of Chemical Research (2004), 781-783, database is CAplus.
Stirring 2-hydroxy-2-aryl-1,3-indandiones in ethylenediamine at room temperature for 1-2 h produces benzodiazocinones I (R1R2 = benzo, R3 = R4 = H; R1 = R2 = H, R3R4 = benzo; R1, R2 = H, Me; R3 = H, Me, MeO, Cl; R4 = H) in 80-90% yields. Under similar reaction conditions 2,2-diaryl-1,3-indandiones furnish diphenylmethanes.
Journal of Chemical Research published new progress about 457-68-1. 457-68-1 belongs to catalysis-chemistry, auxiliary class Fluoride,Benzene, name is Bis(4-fluorophenyl)methane, and the molecular formula is C13H10F2, HPLC of Formula: 457-68-1.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia