Radical cyclizations to quinolone and isoquinolone systems under oxidative and reductive conditions
作者:Yazmin M. Osornio、Luis D. Miranda、Raymundo Cruz-Almanza、Joseph M. Muchowski
DOI:10.1016/j.tetlet.2004.01.123
日期:2004.3
Radical cyclizations to quinolone and isoquinolone systems under Fenton-type and n-Bu3SnH-mediated conditions are described. For N-iodoalkylquinolones, ca. 3:1 mixtures of oxidative cyclization products at C-2, and unexpectedly at C-8, were obtained under both conditions. Five- or six-membered oxidative cyclization products were obtained from N-iodoalkylisoquinolones under Fenton-type conditions, whereas
描述了在芬顿型和n -Bu 3 SnH介导的条件下自由基环化成喹诺酮和异喹诺酮系统。对于N-碘代烷基喹诺酮,约。在两种条件下,均在C-2和C-8处意外获得了3:1的氧化环化产物混合物。在Fenton型条件下,从N-碘烷基异喹啉酮获得五或六元氧化环化产物,而n -Bu 3 SnH介导的反应在五元,六元和七元系列中得到还原环化产物。