59698-02-1Relevant academic research and scientific papers
THE 2,2'-SPIROBICHROMAN - 1,1'-SPIROBIINDAN-4,4'-DIOL REARRANGEMENT. II
Tanaka, Tsuguo,Miyaguchi, Masao,Mochisuki, Rosalina K.,Tanaka, Senichiro,Okamoto, Masaya,et al.
, p. 463 - 484 (2007/10/02)
The reaction of 2,2'-spirobichroman derivatives with either hydrobromic acid in the acetic acid solution or aluminum chloride in the chlorobenzene solution yielded 1,1'-spirobiindan-4,4'-diol analogues.The reaction is peculiar as compared with the reaction of alkyl aryl ethers with the same reagents in the same media.
THE SPIROBICHROMAN-DIHYDROXYSPIROBIINDANE REARRANGEMENT
Tanaka, Tsuguo
, p. 739 - 742 (2007/10/02)
Rearrangement of 2,2'-spirobichroman derivatives having electron donating substituents into 4,4'-dihydroxy-1,1'-spirobiindane analogues was effected by boiling solution of the former in HBr- or HI-HBr-acetic acid.
