Synthesis of 2H-1-benzopyrans via palladacycles with a metal-bonded stereogenic carbon.
[reaction: see text] Stable oxapalladacycles have been prepared and converted into a series of highly functionalized 2H-1-benzopyrans via regioselective insertion of activated alkynes.
Portscheller
Janelle L
JL
Department of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045-7582, USA.
Malinakova
Helena C
HC