Misetic, Ana published the artcileThe pixyl (Px) group: a novel photocleavable protecting group for primary alcohols, Related Products of alcohols-buliding-blocks, the publication is Tetrahedron Letters (1998), 39(13), 1653-1656, database is CAplus.
The 9-phenylxanthyl (pixyl or Px) moiety has been investigated as a potential photocleavable protecting group for primary alcs. Alcs. were protected in good yield by treatment with 9-chloro-9-phenylxanthene in dry pyridine at room temperature Irradiation of the alc. derivatives in neutral aqueous acetonitrile regenerates the alcs. and the 9-phenylxanthyl alc.
Tetrahedron Letters 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, Related Products of alcohols-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts