New Synthetic Approaches to Polycyclic Aromatic Hydrocarbons and Their Carcinogenic Oxidized Metabolites: Derivatives of Benzo[<i>s</i>]picene, Benzo[<i>r</i><i>st</i>]pentaphene, and Dibenzo[<i>b</i>,<i>d</i><i>ef</i>]chrysene
作者:Fang-Jie Zhang、Cecilia Cortez、Ronald G. Harvey
DOI:10.1021/jo9918044
日期:2000.6.1
synthetic method provides convenient access to as many as three different polycyclic aromatic ring systems from a single Suzuki coupled intermediate. It was utilized to synthesize substituted derivatives of benzo[s]picene, benzo[rst]pentaphene, dibenzo[b,def]chrysene, and 13,14-dihydro-benz[g]indeno[2,1-a]fluorene, as well as the putative carcinogenic bisdihydrodiol metabolites of benzo[s]picene, benzo[rst]pentaphene
描述了一种新的合成多环芳族化合物的方法,该方法需要在关键步骤中将PAH双硼酸衍生物与邻溴代芳基醛进行双Suzuki偶联,以提供芳基二醛,然后通过(a)转化为二烯烃将其转化为更大的多环芳环系统通过维蒂希反应,然后进行光环化,或(b)用三氟甲磺酸和1,3-丙二醇进行还原环化。这种合成方法可方便地从单个Suzuki偶联中间体访问多达三个不同的多环芳族环系统。它被用来合成苯并[s]吡啶,苯并[r]戊苯,二苯并[b,def]丙烯和13,14-二氢-苯并[g]茚并[2,1-a]芴的取代衍生物,以及苯并[s]]烯,苯并[rst]五苯芬的可能致癌的双二氢二醇代谢物,