Journal
RSC ADVANCES
Volume 12, Issue 31, Pages 19736-19740Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2ra03467k
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Funding
- Hunan Provincial Natural Science Foundation of China [2021JJ40432, 2020JJ4073]
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A metal-free visible-light-induced decarboxylative radical addition/cyclization procedure at room temperature was developed for the synthesis of acylated benzimidazo/indolo[2,1-a]isoquinolines. Traditional heating and metal reagents were effectively avoided, and the desired products were obtained in satisfactory yields under mild reaction conditions.
A metal-free visible-light-induced decarboxylative radical addition/cyclization procedure at room temperature was described for the synthesis of acylated benzimidazo/indolo[2,1-a]isoquinolines. The procedure was prepared in water via a reaction of functionalized 2-arylbenzoimidazoles or 2,3-diarylindoles and alpha-oxocarboxylic acids in the presence of phenyliodine(iii) diacetate (PIDA) in one step under mild reaction conditions. In this procedure, traditional heating and metal reagents could be effectively avoided to access 1,4-dicarbonyl-containing benzimidazo/indolo[2,1-a]isoquinoline-6(5H)-ones in satisfactory yields.
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