Ignatenko, Vasily A. published the artcileBranch-Selective Synthesis of Oxindole and Indene Scaffolds: Transition Metal-Controlled Intramolecular Aryl Amidation Leading to C3 Reverse-Prenylated Oxindoles, Application In Synthesis of 25753-84-8, the publication is Organic Letters (2010), 12(16), 3594-3597, database is CAplus and MEDLINE.
In an effort to access biol. important scaffolds, a concise branch-selective synthesis of C3 tertiary oxindoles by Cu(I)-catalyzed aryl amidation and 2,2-dimethylindene by Pd(0)-catalyzed Heck cyclization has been accomplished from acyclic reverse-prenylated intermediates. Oxindole C3-enolate generation using NaH followed by alkylation in the presence of appropriate electrophiles provides a novel route to quaternary C3 reverse-prenylated oxindoles.
Organic Letters published new progress about 25753-84-8. 25753-84-8 belongs to bromides-buliding-blocks, auxiliary class Copper, name is Bromo(1,10-phenanthroline)(triphenylphosphine)copper(I), and the molecular formula is C30H24BrCuN2P, Application In Synthesis of 25753-84-8.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary