Extractives from Guttiferae. Part XVI. Biogenetic-type synthesis of xanthones from their benzophenone precursors
作者:H. D. Locksley、I. G. Murray
DOI:10.1039/j39700000392
日期:——
A general synthesis of polyhydroxybenzophenones is described. 2,3′,4′,6-Tetrahydroxy- 2,2′,3′,6-tetrahydroxy-, and 2,3,3′,4′,6-pentahydroxybenzophenones were prepared and oxidised to 1,6,7-trihydroxy-, 1,2,8-trihydroxy-, and 1,2,6,7-(or 1,4,6,7-) tetrahydroxyxanthones, respectively, by oxidative coupling.
描述了聚羟基二苯甲酮的一般合成。制备2,3',4',6-四羟基-2,2',3',6-四羟基-和2,3,3',4',6-五羟基二苯甲酮并将其氧化为1,6,7-通过氧化偶联分别形成三羟基-,1,2,8-三羟基-和1,2,6,7-(或1,4,6,7-)四羟基氧杂蒽。