Lopez-Alvarado, Pilar published the artcileA general synthesis of quinoline-2,5,8(1H)-triones via acylation of 2,5-dimethoxyaniline with S-tert-butyl thioacetates by application of the Knorr cyclization, Synthetic Route of 107263-95-6, the publication is Synthesis (1998), 186-194, database is CAplus.
An efficient synthesis of 3- and/or 4-alkylated quinoline-2,5,8(1H)-triones is described. The reaction sequence employed involves Knorr cyclization of 2,5-dimethoxyanilides into 5,8-dimethoxyquinoline systems, followed by oxidative demethylation with (NH4)2Ce(NO3)6. The starting 2,5-dimethoxyanilides were prepared by chemoselective acylation of 2,5-(MeO)2C6H3NH2 with a series of β-oxo thioesters obtained by regioselective alkylation of AcCH2C(O)SCMe3 at C(2) and/or C(4). The introduction of electrophiles other than alkyl groups at C(2) on AcCH2C(O)SCMe3 was also studied.
Synthesis published new progress about 107263-95-6. 107263-95-6 belongs to pyridine-derivatives, auxiliary class Fluorination reagent, name is 1-Fluoropyridiniumtriflate, and the molecular formula is C6H5F4NO3S, Synthetic Route of 107263-95-6.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem