The invention relates to substituted oxopyridine derivatives and to processes for their preparation, and also to their use for preparing medicaments for the treatment and/or prophylaxis of diseases, in particular cardiovascular disorders, preferably thrombotic or thromboembolic disorders, and o edemas, and also ophthalmic disorders.
Acid-promoted palladium(II)-catalyzed ortho-halogenation of primary benzamides: En route to halo-arenes
作者:Yogesh Jaiswal、Amit Kumar
DOI:10.1016/j.catcom.2019.105784
日期:2019.11
Brønsted acid-promoted palladium(II)-catalyzed regioselective installation of halogens (Br, Cl, and I) to the aromatic ring of benzamide derivatives has been achieved using primary amides. A wide variety of benzamides were compatible under established conditions to afford the halogenated products without installing any external auxiliary. Mild reaction conditions, use of primary amide as a directing
Nickel-catalyzed regioselective C–H halogenation of electron-deficient arenes
作者:Ze-Lin Li、Peng-Yu Wu、Chun Cai
DOI:10.1039/c8nj06023a
日期:——
the ortho-halogenation of electron-deficient arenes with easily available halogenating reagents N-halosuccinimides (NXS; X = Br, Cl and I). The transformation was highly regioselective and a wide substrate scope and functional group tolerance were observed. This discovery could be of great significance for the selective halogenation of amides, benzoic esters and other substances with guiding groups. Mechanistic
开发了一种简单的Ni(II)催化的一般策略,用于用易获得的卤化试剂N-卤代琥珀酰亚胺(NXS; X = Br,Cl和I)对电子缺陷型芳烃进行邻卤代化。该转化是高度区域选择性的,并且观察到宽的底物范围和官能团耐受性。该发现对于酰胺,苯甲酸酯和其他具有引导基团的物质的选择性卤化可能具有重要意义。还介绍了机械研究。
Copper-Catalyzed Self-Condensation of Benzamide: Domino Reactions towards Quinazolinones
New synthetic method is developed to prepare 2‐substituted 4(3H)‐Quinazolinone using green chemistry technique. It is oxidant and ligand‐free, copper‐catalysed self‐condensation of 2‐halobenzamide.
Rapid assembly of quinazolinone scaffold via copper-catalyzed tandem reaction of 2-bromobenzamides with aldehydes and aqueous ammonia: application to the synthesis of the alkaloid tryptanthrin
作者:Shenghai Guo、Yan Li、Li Tao、Wenwen Zhang、Xuesen Fan
DOI:10.1039/c4ra10799c
日期:——
procedure for the preparation of 2-substituted and 2,3-disubstituted quinazolinones was achieved through copper-catalyzed tandem reaction of 2-bromobenzamides with aldehydes and aqueous ammonia under air. Control experimental results indicated that this tandem reaction is triggered by a copper-catalyzed direct amination of 2-bromobenzamides with aqueous ammonia, followed by cyclocondensation and oxidative