6091-04-9Relevant academic research and scientific papers
Iron-Catalyzed Radical Methylation of Activated Alkenes with tert -Butanol as the Methyl Source
Cao, Shouhao,Ji, Hongfang,Jia, Rui,Ma, Zhiwei,Shen, Liang,Xu, Zhengbao
supporting information, p. 1909 - 1913 (2019/09/30)
A free-radical-initiated methylation/addition/cyclization of N -arylacrylamides and a methylation/addition/elimination of quinines have been developed in which t -BuOH is used as a methyl source. These reactions provide effective and selective methods for the synthesis of various methylated oxindoles and quinones in moderate to good yields.
SINTESIS DE NAFTAZARINAS HIDROXILADAS
Farina, F.,Fernandez, E.,Gimeno, V.,Valderrama, J. A.
, p. 220 - 229 (2007/10/03)
A variety of naphthazarines type 4 and 8 were prepared through Diels-Alder reactions of substituted 1,4-benzoquinones with 1,3-dienes.Thiele-Winter reaction of 5 afforded 6 which by chromic oxidation yielded naphthazarines 7 and/or naphthoquinones 9.Hydroxynaphthazarines of type 8 were synthesized from 5 through 2,3-epoxides of the type 14.The structural study of the products, by 1H-NMR, showed the typical tautomerism of the naphthazarine system.Palabras clave: hidroxinaftazarinas, reaccion Diels-Alder, reaccion Thiele-Winter
