Producción CyT
Domino Self-Sensitized Photooxygenation of Conjugated Dienones for the Synthesis of 1,2,4-Trioxanes
Articulo
Fecha:
2019Editorial y Lugar de Edición:
AMER CHEMICAL SOCRevista:
JOURNAL OF ORGANIC CHEMISTRY, vol. 84 (pp. 3671-3677) AMER CHEMICAL SOCResumen *
The photochemical behavior of several dienones was studied under aerobic conditions. 2-Allylidene-1,3-cycloalkanediones prepared via Knoevenagel-type condensation between simple readily available 1,3-dicarbonyl substrates and α,β-unsaturated aldehydes afforded 1,2,4-trioxane derivatives upon UVA irradiation in the presence of oxygen. This domino self-sensitized photooxygenation cascade of conjugated carbonyl systems proceeds stereoselectively and involves the formation of two new oxa-cycles, three new bonds (two C?O), and three stereocenters. Información suministrada por el agente en SIGEVAPalabras Clave
LiquidsSolvents,IrradiationMixturesOxygen