One-pot construction of medium- and large-sized ring substituted furans. Efficient conversion to dibenzofurans, coumestans, and 4-pyrones.
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.
Lee
Y R
YR
School of Chemical Engineering and Technology, College of Engineering, Yeungnam University, Kyongsan 712-749, Korea. yrlee@ynucc.yeungnam.ac.kr
Suk
J Y
JY
Kim
B S
BS
D001572:Benzofurans / Q000138:chemical synthesis* / Q000737:chemistry; D003374:Coumarins / Q000138:chemical synthesis* / Q000737:chemistry; D005663:Furans / Q000138:chemical synthesis* / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation; D011753:Pyrones / Q000138:chemical synthesis* / Q000737:chemistry
D001572:Benzofurans; D003374:Coumarins; D005663:Furans; D011753:Pyrones; C023614:dibenzofuran