Zhong, Dayou published the artcileIron-Catalyzed Intramolecular C-H Amidation of N-Benzoyloxyureas, Application of 4-Nitrophenylacetic acid, the publication is Chinese Journal of Chemistry (2021), 39(4), 855-858, database is CAplus.
A redox-neutral Fe-catalyzed intramol. C-H amidation of N-benzoyloxyureas was described. This methodol. employed a simple iron complex in situ generated from Fe(OTf)2 and bipyridine as the catalyst and N-benzoyloxyureas as the nitrene precursors without using exogenous oxidants. An array of cyclic ureas I [R1 = Me, n-hexane, Bn, etc.; R2 = Me, Ph, 2-naphthyl, etc.; R3 = H, Me] were synthesized via aliphatic C(sp3)-H amidation in excellent yields. In addition, this catalytic system was also amenable to aryl C(sp2)-H nitrene insertion to provide benzimidazolones II [R1 = Me; R4 = H, MeO, t-Bu, C(O)OMe] in moderate yields.
Chinese Journal of Chemistry published new progress about 104-03-0. 104-03-0 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Carboxylic acid,Benzene, name is 4-Nitrophenylacetic acid, and the molecular formula is C19H17N3O, Application of 4-Nitrophenylacetic acid.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia