Luk’yanov, S. M. published the artcileConversion of 1,3-benzodioxans into xanthene derivatives, Recommanded Product: 9-Phenyl-9H-xanthen-9-ol, the publication is Zhurnal Organicheskoi Khimii (1978), 14(2), 399-401, database is CAplus.
Treatment of dioxanes I (R = Ph, Me) with Ph3C+ClO–4 in HOAc gave 21-62.8% II, which was also prepared by reaction of o-HOC6H4CPh2OH with Ph3C+ClO4– or HClO4. Treatment of II with BrCH2CO2Et and Zn gave 93% III (R1 = CH2CO2Et) III (R1 = p-H2NC6H4, p-Me2NC6H4, EtO) were also prepared
Zhurnal Organicheskoi Khimii published new progress about 596-38-3. 596-38-3 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Benzene,Alcohol, name is 9-Phenyl-9H-xanthen-9-ol, and the molecular formula is C19H14O2, Recommanded Product: 9-Phenyl-9H-xanthen-9-ol.
Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts