Palladium-Catalyzed Cyclization/Heck- and Cyclization/Conjugate-Addition-Type Sequences in the Preparation of Polysubstituted Furans
作者:José M. Aurrecoechea、Aritz Durana、Elena Pérez
DOI:10.1021/jo800211q
日期:2008.5.1
from the elements of the butatrienyl carbinol while the electron-deficient olefin is incorporated as a C-3 substituent. In most cases, the reaction proceeds via a Heck-type pathway leading to the efficient formation of 3-vinylfurans. However, couplings with methyl vinyl ketone display a divergent behavior to afford selectively either Heck- or hydroarylation-type products depending on reaction conditions