One-Pot Construction of Medium- and Large-Sized Ring Substituted Furans. Efficient Conversion to Dibenzofurans, Coumestans, and 4-Pyrones
作者:Yong Rok Lee、Jung Yup Suk、Byung So Kim
DOI:10.1021/ol0056933
日期:2000.5.1
New efficient synthesis of medium- and large-sized ring substituted furans is achieved by 1,3-dicarbonyl compounds with vinyl sulfides in the presence of Ag(2)CO(3)/Celite (Fétizon's reagent) in a one-pot procedure. The synthesized furans can be further converted to biologically interesting compounds such as dibenzofurans, coumestans, benzofuroquinolinone, and 4-pyrone.
在一锅法中,在Ag(2)CO(3)/ Celite(Fétizon试剂)存在下,通过1,3-二羰基化合物与乙烯基硫化物的合成,实现了中型和大型环取代呋喃的新有效合成。合成的呋喃可进一步转化为生物学上令人感兴趣的化合物,例如二苯并呋喃,香豆素,苯并呋喃喹啉酮和4-吡喃酮。