Kachur, Alexander V. published the artcileSynthesis of 18F-labeled phenolphthalein and naphtholphthalein, Category: benzofurans, the publication is Journal of Fluorine Chemistry (2013), 1-6, database is CAplus and MEDLINE.
The fluorination of phenolphthalein and naphtholphthalein was performed with diluted fluorine gas under acidic conditions. For both compounds the authors observed an electrophilic fluorination into ortho position to the hydroxyl group. Through the use of this reaction the authors synthesized and characterized mono- and difluorinated derivatives of phenolphthalein and naphtholphthalein. The compounds were also prepared in the 18F labeled form, which are usable as a new type of probe for in vivo pH measurement in biol. objects using Cerenkov imaging or combination of light absorption and PET.
Journal of Fluorine Chemistry published new progress about 596-01-0. 596-01-0 belongs to benzofurans, auxiliary class Benzofuran,Naphthalene,Alcohol,Ester, name is 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one, and the molecular formula is C28H18O4, Category: benzofurans.
Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem