Title of article
Trifluoromethanesulfonic acid mediated Friedel–Crafts reaction of (E)-3-aryl-2-(diethoxyphosphoryl)acrylic acids with electron-rich hydroxyarenes. A convenient approach to α-methylene-δ-valerolactones
Author/Authors
Henryk Krawczyk، نويسنده , , ?ukasz Albrecht، نويسنده , , Jakub Wojciechowski، نويسنده , , Wojciech M. Wolf، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2007
Pages
12
From page
12583
To page
12594
Abstract
The synthesis of trans-3-diethoxyphosphoryl-4-aryl-3,4-dihydrocoumarins from electron-rich hydroxyarenes and (E)-3-aryl-2-(diethoxyphosphoryl)acrylic acids has been achieved by using CF3SO3H as a catalyst. The products could be easily transformed to the corresponding α-methylene-δ-valerolactones by means of the Horner–Wadsworth–Emmons reaction.
Keywords
?-methylene-?-valerolactones , 4-Aryl-3 , Friedel–Crafts reaction , 4-dihydrocoumarins , Neoflavonoids
Journal title
Tetrahedron
Serial Year
2007
Journal title
Tetrahedron
Record number
1093533
Link To Document