Radical cyclization to dibenzo[de,g]chromanones. A new synthesis of phenanthrene compounds.
作者:Juan C. Estévez、M.Carmen Villaverde、Ramón J. Estévez、Luis Castedo
DOI:10.1016/s0040-4020(01)86354-7
日期:1993.3
We describe the radical cyclization of bromobenzylisochromanones to afford the novel dibenzo[de,g]chromanones. Opening the lactone ring of the latter allows the preparation of phenanthrene alkaloids and 1-phenanthrenylacetic acids.
我们描述了溴苄基异苯并二氢呋喃酮的自由基环化作用,以提供新型的二苯并[de,g]苯并二氢呋喃酮。打开后者的内酯环可以制备菲生物碱和1-菲基乙酸。