Et2MeN×HI-Catalyzed Reaction of Arylboronic Acids with 2-Acyl-2,3-dihydro-4H-pyrans Leading to 2-Aryltetrahydrocyclopenta[1,3,2]dioxaboroles
作者:Takahide Fukuyama、Takahiro Okamura、Ilhyong Ryu
DOI:10.1055/s-0030-1260007
日期:2011.5
The reaction of arylboronic acids with 2-acyl-2,3-dihydro-4H-pyrans proceeded smoothly in the presence of a catalytic amount of Et2MeNËHI to give acyl-substituted 2-aryltetrahydrocyclopenta[1,3,2]dioxaboroles in good yields. The reaction is likely to involve the acid-catalyzed ring-opening reaction of pyrans, an intramolecular aldol reaction, and condensation with boronic acids.