93782-05-9Relevant articles and documents
Efficient Amination of Activated and Non-Activated C(sp3)?H Bonds with a Simple Iron–Phenanthroline Catalyst
Jarrige, Lucie,Zhou, Zijun,Hemming, Marcel,Meggers, Eric
supporting information, p. 6314 - 6319 (2021/02/01)
A readily available catalyst consisting of iron dichloride in combination with 1,10-phenanthroline catalyzes the ring-closing C?H amination of N-benzoyloxyurea to form imidazolidin-2-ones in high yields. The C?H amination reaction is very general and applicable to benzylic, allylic, propargylic, and completely non-activated aliphatic C(sp3)?H bonds, and it also works for C(sp2)?H bonds. The surprisingly simple method can be performed under open flask conditions.
Photocatalytic Intramolecular C-H Amination Using N-Oxyureas as Nitrene Precursors
Ivanovich, Ryan A.,Polat, Dilan E.,Beauchemin, André M.
supporting information, p. 6360 - 6364 (2020/09/02)
Nitrenes are remarkable high-energy chemical species that enable direct C-N bond formation, typically via controlled reactions of metal-stabilized nitrenes. Here, in contrast, the combined use of photocatalysis with careful engineering of the precursor enabled C-H amination forming imidazolidinones and related nitrogen heterocycles from readily accessible hydroxylamine precursors. Preliminary mechanistic results are consistent with the formation of free carbamoyl triplet nitrenes as reactive intermediates.
Effect of structural modification of the hydrantoin ring on anticonvulsant activity
Cortes,Liao,Watson,Kohn
, p. 601 - 606 (2007/10/02)
Selectively substituted hydantoins (15 examples), 4-hydroxy-2-imidazolidinones (13 examples), 2-imidazolones (10 examples), 2-imidazolidinones (four examples), vicinal diamines (two examples), and simple amino acid derivatives (four examples) have been pr