Synthesis of functionalized 4-nitroanilines by ring transformation of dinitropyridone with enaminones
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DOI: 10.1016/j.tetlet.2017.11.003
Abstract: Abstract 2-Functionalized 4-nitroanilines were readily synthesized by ring transformation using 3,5-dinitro-2-pyridone and enaminones prepared from 1,3-dicarbonyl compounds and amines. Modification of the amino group and the ortho -position could be achieved by simply changing the… read more here.
Keywords: functionalized nitroanilines; synthesis functionalized; transformation dinitropyridone; nitroanilines ring ... See more keywords
Novel access to 2-substituted quinolin-4-ones by nickel boride-mediated reductive ring transformation of 5-(2-nitrophenyl)isoxazoles
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DOI: 10.1016/j.tetlet.2019.151327
Abstract: Abstract Reductive ring transformation of 3-substituted 5-(2-nitrophenyl)isoxazoles, readily accessible via 1,3-dipolar cycloaddition of 2-ethinylnitrobenzene with nitrile oxides, opens a novel access to 2-substituted quinolin-4-ones. Nickel boride, generated in situ from nickel chloride and sodium borohydride,… read more here.
Keywords: quinolin ones; reductive ring; nitrophenyl isoxazoles; ring transformation ... See more keywords