Imidazo[1,2-c]quinazolines with lipid peroxidation inhibitory effect
摘要:
A series of imidazo[1,2-c]quinazolines of different lipophilic character was prepared. According to their antioxidant (cyclic voltammetry) properties they all should be potent inhibitors of lipid peroxidation. Under the given circumstances (NADPH-induced lipid peroxidation in rat brain microsomes and Fe(2+)-induced lipid peroxidation in rat brain homogenate), however, their lipid peroxidation inhibitory activity was strongly dependent on their lipophilicity. (C) Elsevier, Paris.
Imidazo[1,2-c]quinazolines with lipid peroxidation inhibitory effect
摘要:
A series of imidazo[1,2-c]quinazolines of different lipophilic character was prepared. According to their antioxidant (cyclic voltammetry) properties they all should be potent inhibitors of lipid peroxidation. Under the given circumstances (NADPH-induced lipid peroxidation in rat brain microsomes and Fe(2+)-induced lipid peroxidation in rat brain homogenate), however, their lipid peroxidation inhibitory activity was strongly dependent on their lipophilicity. (C) Elsevier, Paris.
Synthesis of Quinazolinones, Imidazo[1,2-<i>c</i>
]quinazolines and Imidazo[4,5-<i>c</i>
]quinolines through Tandem Reductive Amination of Aryl Halides and Oxidative Amination of C(sp<sup>3</sup>
)-H Bonds
2-c]quinazolines and imidazo[4,5-c]quinolines. The reaction involves a copper-catalyzed reductiveamination through azidation followed by reduction and oxidative amination of C(sp3)–H bonds of N,N-dimethylacetamide in the presence of TBHP (tert-butylhydroperoxide) as oxidant. The method uses the easily available sodium azide as a nitrogen source and DMA (N,N-dimethylacetamide) as a one-carbon source for the
Copper-catalyzed tandem Ullmann type C–N coupling and dehydrative cyclization: synthesis of imidazo[1,2-c]quinazolines
作者:Nitesh K. Nandwana、Shiv Dhiman、Ganesh M. Shelke、Anil Kumar
DOI:10.1039/c5ob02469b
日期:——
A simple and efficient one-pot protocol has been demonstrated for the synthesis of imidazo[1,2-c]quinazolinederivatives through a copper catalyzed tandem reaction between substituted 2-(2-bromophenyl)-1H-imidazoles and formamide. The synthetic protocol involves initial Ullmann-type C–N coupling followed by intramolecular dehydrative cyclization. The method uses readily available 2-(2-bromophenyl)-1H-imidazoles
已经证明了一种简单有效的一锅操作规程,用于通过取代的2-(2-溴苯基)-1 H-咪唑与甲酰胺之间的铜催化串联反应合成咪唑并[1,2- c ]喹唑啉衍生物。合成方案包括最初的Ullmann型C–N偶联,然后进行分子内脱水环化。该方法使用容易获得的2-(2-溴苯基)-1- ħ -咪唑作为起始物质,得到咪唑并[1,2 Ç ]喹唑啉在中度至良好的产率和提供610毫克(71%)的产率3a中从一个克规模反应。
TWI520958
申请人:——
公开号:——
公开(公告)日:——
METAL COMPLEXES
申请人:Stoessel Philipp
公开号:US20110284799A1
公开(公告)日:2011-11-24
The present invention relates to metal complexes and to electronic devices, in particular organic electroluminescent devices, comprising these metal complexes.