Yoshida, Masato published the artcileConvenient preparation of (chlorodifluoromethyl)arenes. Useful precursors for aryldifluoromethyl radicals, Safety of 1-(Difluoromethyl)naphthalene, the publication is Chemistry Letters (1992), 227-30, database is CAplus.
The chlorodifluoromethyl group was introduced into aromatic rings (of e.g., C6H6 to give PhCF2Cl) using bis(chlorodifluoroacetyl) peroxide which was readily prepared from the corresponding acid anhydride with 30% hydrogen peroxide, and the chlorine was successively replaced by hydrogen or the allyl group in excellent yields under radical conditions.
Chemistry Letters published new progress about 53731-26-3. 53731-26-3 belongs to naphthyridine, auxiliary class Difluoromethyl,Fluoride,Naphthalene, name is 1-(Difluoromethyl)naphthalene, and the molecular formula is C18H17N5O3, Safety of 1-(Difluoromethyl)naphthalene.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem