4190-14-1Relevant articles and documents
Muricatisine - A new alkaloid from two species of Oxytropis
Demeuov,Akhmedzhanova,Moldagulov,Shakirov
, p. 484 - 491 (1998)
The new alkaloid muricatisine has been isolated from the epigeal parts of the plants Oxytropis muricata (Pall.) DC. (Mongolia) and O. puberula Boriss. (Kazakhstan), which belong to the Fabaceae family, and its structure has been established on the basis of spectral characteristics as N-benzoyl-2-oxo-2-phenylethylamine and has been confirmed by a partial synthesis.
Synthesis of α-Amidoketones through the Cascade Reaction of Carboxylic Acids with Vinyl Azides under Catalyst-Free Conditions
Gao, Cai,Zhou, Qianting,Yang, Li,Zhang, Xinying,Fan, Xuesen
, p. 13710 - 13720 (2020/11/13)
An efficient synthesis of α-amidoketone derivatives through the cascade reactions of carboxylic acids with vinyl azides is presented. Compared with literature protocols, notable features of this new method include catalyst-free conditions, broad substrate scope, good tolerance of a wide range of functional groups, and high efficiency. In addition, the synthetic potential of this method as a tool for late-stage modification was convincingly manifested by its application in the structural elaborations of a number of carboxylic acid drug molecules.
Remote C(sp3)-H Oxygenation of Protonated Aliphatic Amines with Potassium Persulfate
Lee, Melissa,Sanford, Melanie S.
, p. 572 - 575 (2017/02/10)
This letter describes the development of a method for selective remote C(sp3)-H oxygenation of protonated aliphatic amines using aqueous potassium persulfate. Protonation serves to deactivate the proximal C(sp3)-H bonds of the amine substrates and also renders the amines soluble in the aqueous medium. These reactions proceed under relatively mild conditions (within 2 h at 80 °C with amine as limiting reagent) and do not require a transition metal catalyst. This method is applicable to a variety of types of C(sp3)-H bonds, including 3°, 2°, and benzylic C-H sites in primary, secondary, and tertiary amine substrates.