Copper-Catalyzed Domino Reactions for the Synthesis of Phenothiazines
作者:Manna Huang、Dongting Huang、Xinhai Zhu、Yiqian Wan
DOI:10.1002/ejoc.201500667
日期:2015.8
A method for the one-pot synthesis of phenothiazines from benzothiazoles and aryl ortho-dihalides was explored. Preliminary work on the mechanism of the reaction suggested that it follows a domino process, including the hydrolysis of benzothiazoles followed by C–S coupling and C–N coupling. The low loading of the catalyst system (5 mol-% for both copper and ligand), the mild experimental conditions
There are described compounds of the formula ##STR1## Wherein the variables have been defined herein. The compounds are useful as research tools in the determination of biologically active peptides sequences and also potentially suitable as medicaments, some of them being useful in the prevention or control of the formation of blood platelet thrombi, and some compounds are useful as intermediates.
TRICYCLIC HETEROAROMATIC COMPOUNDS AS ALPHA-SYNUCLEIN LIGANDS
申请人:Tu Zhude
公开号:US20130315825A1
公开(公告)日:2013-11-28
Derivatives of phenothiazine, phenoxazine, and phenazine compounds and their use as α-synuclein ligands are described. Also described are methods of using these compounds and their radiolabeled analogs for the detection, monitoring, and treatment of synucleinopathies, including Parkinson's disease.
Synthesis of N-Heterocycles by Dehydrogenative Annulation of N-Allyl Amides with 1,3-Dicarbonyl Compounds
作者:Zheng-Jian Wu、Shi-Rui Li、Hai-Chao Xu
DOI:10.1002/anie.201807683
日期:2018.10.22
construct cyclicstructures. Reported herein is an unprecedented synthesis of pyrrolidine and tetrahydropyridine derivatives through electrochemical dehydrogenative annulation of N‐allyl amides with 1,3‐dicarbonyl compounds. The electrolytic method employs an organic redox catalyst, which obviates the need for oxidizing reagents and transition‐metal catalysts. In these reactions, the N‐allyl amides serve