作者:Derek H.R. Barton、Dervilla M.X. Donnelly、Jean-Pierre Finet、Paul H. Stenson
DOI:10.1016/s0040-4020(01)89826-4
日期:——
The arylation of chroman-4-one and 4-hydroxycoumarin derivatives by pentavalent arylbismuth reagents has been carried out. Chroman-4-one gives the 3-diphenyl derivative, whereas 3-formyl and 3-oxalyl derivatives are phenylated to isoflavanones in moderate to high yields. Arylation of 4-hydroxycoumarins by various Bi(V) reagents gives rise to functionally substituted 3-aryl-4-hydroxycoumarins in high
已经通过五价芳基铋试剂将苯并二氢吡喃-4-酮和4-羟基香豆素衍生物芳基化。Chroman-4-one生成3-diphenyl衍生物,而3-formyl和3-oxalyl衍生物以中等至高收率被苯基化为异黄酮。通过各种Bi(V)试剂对4-羟基香豆素进行的丙烯酸化反应以高收率产生了功能性取代的3-芳基-4-羟基香豆素。