Reaction of α-Hydroxyamino Ketones with Dicarbonyl Compounds – Synthesis of Imidazoline Nitroxides with a Functional Group in a Side Chain
作者:Vladimir A. Reznikov、Leonid B. Volodarsky
DOI:10.1002/jlac.199719970537
日期:1997.5
The reaction of α-hydroxyamino ketones 1 with diacetyl, acetyl acetone or acetoacetic ester in the presence of ammonium acetate results in the formation of 3-imidazoline derivatives 2, which are precursors for the synthesis of stable nitroxides 8, 9, 14, 16, 17, 23–24 with various functional groups in the side chain at the 2-position of the heterocycle.
α羟氨基酮的反应1与双乙酰,在3-咪唑啉衍生物的形成乙酸铵的存在导致乙酰丙酮或乙酰乙酸酯2,这对于稳定的硝基氧的合成前体8,9,14,16, 17、23–24在杂环的2位上的侧链中具有各种官能团。