Synthesis of 2,3-Disubstituted Quinazolinone Derivatives through Copper Catalyzed C-H Amidation Reactions
作者:Trimurtulu Kotipalli、Veerababurao Kavala、Donala Janreddy、Vijayalakshmi Bandi、Chun-Wei Kuo、Ching-Fa Yao
DOI:10.1002/ejoc.201501552
日期:2016.2
The synthesis of quinazolinone derivatives was achieved from 2-iodobenzamide derivatives and various benzylamines, allylamine, and cinnamylamine derivatives through a one-pot copper-catalyzed reaction. In this reaction, the amine component (benzylamine/allylamine/cinnamylamine) is N-arylated with 2-iodobenzamide derivatives through Ullman coupling, followed by an intramolecular C–H amidation in the
is essential for peptidoglycan biosynthesis, and is therefore an important target for antibacterial drug discovery. We report the synthesis, in silico studies and extensive structure–activityrelationships of a series of quinazolinone-based inhibitors of MurA from Escherichia coli. 3-Benzyloxyphenylquinazolinones showed promising inhibitory potencies against MurA, in the low micromolar range, with an
Ru(<scp>II</scp>)‐Catalyzed Selective C—H Alkynylation of Isoquinolones, Quinazolones and Phthalazinones with Bromoalkynes
作者:Quan‐Jian Luo、Han‐Chi Wang、Jing Zhang、Jin‐Heng Li、Bo Sun
DOI:10.1002/cjoc.202400107
日期:——
A new, selective Ru(II)-catalyzed alkynylation reaction of isoquinolones, quinazolones and phthalazinones with readily available bromoalkynes has been developed. This reaction enables the selective construction of a new C(sp2)-C(sp) bond through C—Hactivation and C—Br functionalization, and offers an effective and selective route to synthesizing highly valuable alkynylated isoquinolone, quinazolone